Page 222 - Microchip Technology Products - Memory

AT27C256R-70RI
Microchip Technology

IC OTP 256KBIT 70NS 28SOIC

Package: 28-SOIC (0.342", 8.69mm Width)

Stock3,728
AT27C256R-70PI
Microchip Technology

IC OTP 256KBIT 70NS 28DIP

Package: 28-DIP (0.600", 15.24mm)

Stock6,944
AT27C256R-70JI
Microchip Technology

IC OTP 256KBIT 70NS 32PLCC

Package: 32-LCC (J-Lead)

Stock4,752
AT27C256R-55TI
Microchip Technology

IC OTP 256KBIT 55NS 28TSOP

Package: 28-TSSOP (0.465", 11.80mm Width)

Stock6,368
AT27C256R-55TC
Microchip Technology

IC OTP 256KBIT 55NS 28TSOP

Package: 28-TSSOP (0.465", 11.80mm Width)

Stock6,288
AT27C256R-55RI
Microchip Technology

IC OTP 256KBIT 55NS 28SOIC

Package: 28-SOIC (0.342", 8.69mm Width)

Stock5,536
AT27C256R-55RC
Microchip Technology

IC OTP 256KBIT 55NS 28SOIC

Package: 28-SOIC (0.342", 8.69mm Width)

Stock4,400
AT27C256R-55PI
Microchip Technology

IC OTP 256KBIT 55NS 28DIP

Package: 28-DIP (0.600", 15.24mm)

Stock4,864
AT27C256R-55PC
Microchip Technology

IC OTP 256KBIT 55NS 28DIP

Package: 28-DIP (0.600", 15.24mm)

Stock5,088
AT27C256R-55JI
Microchip Technology

IC OTP 256KBIT 55NS 32PLCC

Package: 32-LCC (J-Lead)

Stock16,056
AT27C256R-55JC
Microchip Technology

IC OTP 256KBIT 55NS 32PLCC

Package: 32-LCC (J-Lead)

Stock5,504
AT27C256R-45TI
Microchip Technology

IC OTP 256KBIT 45NS 28TSOP

Package: 28-TSSOP (0.465", 11.80mm Width)

Stock7,776
AT27C256R-45TC
Microchip Technology

IC OTP 256KBIT 45NS 28TSOP

Package: 28-TSSOP (0.465", 11.80mm Width)

Stock7,056
AT27C256R-45RI
Microchip Technology

IC OTP 256KBIT 45NS 28SOIC

Package: 28-SOIC (0.342", 8.69mm Width)

Stock3,712
AT27C256R-45RC
Microchip Technology

IC OTP 256KBIT 45NS 28SOIC

Package: 28-SOIC (0.342", 8.69mm Width)

Stock5,520
AT27C256R-45PI
Microchip Technology

IC OTP 256KBIT 45NS 28DIP

Package: 28-DIP (0.600", 15.24mm)

Stock4,768
AT27C256R-45PC
Microchip Technology

IC OTP 256KBIT 45NS 28DIP

Package: 28-DIP (0.600", 15.24mm)

Stock4,864
AT27C256R-45JI
Microchip Technology

IC OTP 256KBIT 45NS 32PLCC

Package: 32-LCC (J-Lead)

Stock4,880
AT27C256R-45JC
Microchip Technology

IC OTP 256KBIT 45NS 32PLCC

Package: 32-LCC (J-Lead)

Stock2,192
AT27C256R-15TI
Microchip Technology

IC OTP 256KBIT 150NS 28TSOP

Package: 28-TSSOP (0.465", 11.80mm Width)

Stock6,336

Part Number	Manufacturer	Description	Package	Stock	Memory Format	Technology	Memory Size	Memory Interface	Clock Frequency	Write Cycle Time - Word, Page	Access Time	Voltage - Supply	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
AT27C256R-70RI	Microchip Technology	IC OTP 256KBIT 70NS 28SOIC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 70ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 28-SOIC (0.342", 8.69mm Width) Supplier Device Package: 28-SOIC	Package: 28-SOIC (0.342", 8.69mm Width)	Stock3,728	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	70ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	28-SOIC (0.342", 8.69mm Width)	28-SOIC
AT27C256R-70PI	Microchip Technology	IC OTP 256KBIT 70NS 28DIP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 70ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Through Hole Package / Case: 28-DIP (0.600", 15.24mm) Supplier Device Package: 28-PDIP	Package: 28-DIP (0.600", 15.24mm)	Stock6,944	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	70ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP
AT27C256R-70JI	Microchip Technology	IC OTP 256KBIT 70NS 32PLCC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 70ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 32-LCC (J-Lead) Supplier Device Package: 32-PLCC	Package: 32-LCC (J-Lead)	Stock4,752	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	70ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	32-LCC (J-Lead)	32-PLCC
AT27C256R-55TI	Microchip Technology	IC OTP 256KBIT 55NS 28TSOP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 55ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 28-TSSOP (0.465", 11.80mm Width) Supplier Device Package: 28-TSOP	Package: 28-TSSOP (0.465", 11.80mm Width)	Stock6,368	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	55ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	28-TSSOP (0.465", 11.80mm Width)	28-TSOP
AT27C256R-55TC	Microchip Technology	IC OTP 256KBIT 55NS 28TSOP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 55ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Surface Mount Package / Case: 28-TSSOP (0.465", 11.80mm Width) Supplier Device Package: 28-TSOP	Package: 28-TSSOP (0.465", 11.80mm Width)	Stock6,288	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	55ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Surface Mount	28-TSSOP (0.465", 11.80mm Width)	28-TSOP
AT27C256R-55RI	Microchip Technology	IC OTP 256KBIT 55NS 28SOIC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 55ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 28-SOIC (0.342", 8.69mm Width) Supplier Device Package: 28-SOIC	Package: 28-SOIC (0.342", 8.69mm Width)	Stock5,536	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	55ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	28-SOIC (0.342", 8.69mm Width)	28-SOIC
AT27C256R-55RC	Microchip Technology	IC OTP 256KBIT 55NS 28SOIC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 55ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Surface Mount Package / Case: 28-SOIC (0.342", 8.69mm Width) Supplier Device Package: 28-SOIC	Package: 28-SOIC (0.342", 8.69mm Width)	Stock4,400	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	55ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Surface Mount	28-SOIC (0.342", 8.69mm Width)	28-SOIC
AT27C256R-55PI	Microchip Technology	IC OTP 256KBIT 55NS 28DIP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 55ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Through Hole Package / Case: 28-DIP (0.600", 15.24mm) Supplier Device Package: 28-PDIP	Package: 28-DIP (0.600", 15.24mm)	Stock4,864	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	55ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP
AT27C256R-55PC	Microchip Technology	IC OTP 256KBIT 55NS 28DIP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 55ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Through Hole Package / Case: 28-DIP (0.600", 15.24mm) Supplier Device Package: 28-PDIP	Package: 28-DIP (0.600", 15.24mm)	Stock5,088	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	55ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP
AT27C256R-55JI	Microchip Technology	IC OTP 256KBIT 55NS 32PLCC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 55ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 32-LCC (J-Lead) Supplier Device Package: 32-PLCC	Package: 32-LCC (J-Lead)	Stock16,056	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	55ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	32-LCC (J-Lead)	32-PLCC
AT27C256R-55JC	Microchip Technology	IC OTP 256KBIT 55NS 32PLCC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 55ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Surface Mount Package / Case: 32-LCC (J-Lead) Supplier Device Package: 32-PLCC	Package: 32-LCC (J-Lead)	Stock5,504	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	55ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Surface Mount	32-LCC (J-Lead)	32-PLCC
AT27C256R-45TI	Microchip Technology	IC OTP 256KBIT 45NS 28TSOP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 45ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 28-TSSOP (0.465", 11.80mm Width) Supplier Device Package: 28-TSOP	Package: 28-TSSOP (0.465", 11.80mm Width)	Stock7,776	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	45ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	28-TSSOP (0.465", 11.80mm Width)	28-TSOP
AT27C256R-45TC	Microchip Technology	IC OTP 256KBIT 45NS 28TSOP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 45ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Surface Mount Package / Case: 28-TSSOP (0.465", 11.80mm Width) Supplier Device Package: 28-TSOP	Package: 28-TSSOP (0.465", 11.80mm Width)	Stock7,056	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	45ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Surface Mount	28-TSSOP (0.465", 11.80mm Width)	28-TSOP
AT27C256R-45RI	Microchip Technology	IC OTP 256KBIT 45NS 28SOIC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 45ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 28-SOIC (0.342", 8.69mm Width) Supplier Device Package: 28-SOIC	Package: 28-SOIC (0.342", 8.69mm Width)	Stock3,712	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	45ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	28-SOIC (0.342", 8.69mm Width)	28-SOIC
AT27C256R-45RC	Microchip Technology	IC OTP 256KBIT 45NS 28SOIC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 45ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Surface Mount Package / Case: 28-SOIC (0.342", 8.69mm Width) Supplier Device Package: 28-SOIC	Package: 28-SOIC (0.342", 8.69mm Width)	Stock5,520	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	45ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Surface Mount	28-SOIC (0.342", 8.69mm Width)	28-SOIC
AT27C256R-45PI	Microchip Technology	IC OTP 256KBIT 45NS 28DIP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 45ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Through Hole Package / Case: 28-DIP (0.600", 15.24mm) Supplier Device Package: 28-PDIP	Package: 28-DIP (0.600", 15.24mm)	Stock4,768	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	45ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP
AT27C256R-45PC	Microchip Technology	IC OTP 256KBIT 45NS 28DIP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 45ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Through Hole Package / Case: 28-DIP (0.600", 15.24mm) Supplier Device Package: 28-PDIP	Package: 28-DIP (0.600", 15.24mm)	Stock4,864	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	45ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP
AT27C256R-45JI	Microchip Technology	IC OTP 256KBIT 45NS 32PLCC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 45ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 32-LCC (J-Lead) Supplier Device Package: 32-PLCC	Package: 32-LCC (J-Lead)	Stock4,880	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	45ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	32-LCC (J-Lead)	32-PLCC
AT27C256R-45JC	Microchip Technology	IC OTP 256KBIT 45NS 32PLCC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 45ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Surface Mount Package / Case: 32-LCC (J-Lead) Supplier Device Package: 32-PLCC	Package: 32-LCC (J-Lead)	Stock2,192	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	45ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Surface Mount	32-LCC (J-Lead)	32-PLCC
AT27C256R-15TI	Microchip Technology	IC OTP 256KBIT 150NS 28TSOP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 150ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 28-TSSOP (0.465", 11.80mm Width) Supplier Device Package: 28-TSOP	Package: 28-TSSOP (0.465", 11.80mm Width)	Stock6,336	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	150ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	28-TSSOP (0.465", 11.80mm Width)	28-TSOP
AT27C256R-15TC	Microchip Technology	IC OTP 256KBIT 150NS 28TSOP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 150ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Surface Mount Package / Case: 28-TSSOP (0.465", 11.80mm Width) Supplier Device Package: 28-TSOP	Package: 28-TSSOP (0.465", 11.80mm Width)	Stock4,752	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	150ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Surface Mount	28-TSSOP (0.465", 11.80mm Width)	28-TSOP
AT27C256R-15RI	Microchip Technology	IC OTP 256KBIT 150NS 28SOIC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 150ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 28-SOIC (0.342", 8.69mm Width) Supplier Device Package: 28-SOIC	Package: 28-SOIC (0.342", 8.69mm Width)	Stock7,248	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	150ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	28-SOIC (0.342", 8.69mm Width)	28-SOIC
AT27C256R-15RC	Microchip Technology	IC OTP 256KBIT 150NS 28SOIC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 150ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Surface Mount Package / Case: 28-SOIC (0.342", 8.69mm Width) Supplier Device Package: 28-SOIC	Package: 28-SOIC (0.342", 8.69mm Width)	Stock7,800	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	150ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Surface Mount	28-SOIC (0.342", 8.69mm Width)	28-SOIC
AT27C256R-15PI	Microchip Technology	IC OTP 256KBIT 150NS 28DIP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 150ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Through Hole Package / Case: 28-DIP (0.600", 15.24mm) Supplier Device Package: 28-PDIP	Package: 28-DIP (0.600", 15.24mm)	Stock4,528	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	150ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP
AT27C256R-15PC	Microchip Technology	IC OTP 256KBIT 150NS 28DIP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 150ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Through Hole Package / Case: 28-DIP (0.600", 15.24mm) Supplier Device Package: 28-PDIP	Package: 28-DIP (0.600", 15.24mm)	Stock164,844	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	150ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP
AT27C256R-15JI	Microchip Technology	IC OTP 256KBIT 150NS 32PLCC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 150ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 32-LCC (J-Lead) Supplier Device Package: 32-PLCC	Package: 32-LCC (J-Lead)	Stock7,764	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	150ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	32-LCC (J-Lead)	32-PLCC
AT27C256R-15JC	Microchip Technology	IC OTP 256KBIT 150NS 32PLCC Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 150ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C (TC) Mounting Type: Surface Mount Package / Case: 32-LCC (J-Lead) Supplier Device Package: 32-PLCC	Package: 32-LCC (J-Lead)	Stock23,496	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	150ns	4.5 V ~ 5.5 V	0°C ~ 70°C (TC)	Surface Mount	32-LCC (J-Lead)	32-PLCC
AT27C256R-12TI	Microchip Technology	IC OTP 256KBIT 120NS 28TSOP Memory Type: Non-Volatile Memory Format: EPROM Technology: EPROM - OTP Memory Size: 256Kb (32K x 8) Memory Interface: Parallel Clock Frequency: - Write Cycle Time - Word, Page: - Access Time: 120ns Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C (TC) Mounting Type: Surface Mount Package / Case: 28-TSSOP (0.465", 11.80mm Width) Supplier Device Package: 28-TSOP	Package: 28-TSSOP (0.465", 11.80mm Width)	Stock5,440	EPROM	EPROM - OTP	256Kb (32K x 8)	Parallel	-	-	120ns	4.5 V ~ 5.5 V	-40°C ~ 85°C (TC)	Surface Mount	28-TSSOP (0.465", 11.80mm Width)	28-TSOP