Page 53 - Logic - Signal Switches, Multiplexers, Decoders | Integrated Circuits (ICs)

74ACT11139DR
Texas Instruments

IC 2-4 LINE DECOD/DMUX 16-SOIC

Package: 16-SOIC (0.154", 3.90mm Width)

Stock2,928
SN74S139ANSRE4
Texas Instruments

IC DUAL 2-4 DECOD/DUMUX 16SO

Package: 16-SOIC (0.209", 5.30mm Width)

Stock3,808
SN74AHCT157NSR
Texas Instruments

IC DATA SELECTOR/MUX 16SO

Package: 16-SOIC (0.209", 5.30mm Width)

Stock7,248
74LV251DB,118
NXP

IC 8-INPUT MUX 3-ST 16SSOP

Package: 16-SSOP (0.209", 5.30mm Width)

Stock5,968
FSTU3257MTCX
Fairchild/ON Semiconductor

MUX/DEMUX QUAD 2:1 TTL 16TSSOP

Package: 16-TSSOP (0.173", 4.40mm Width)

Stock3,152
FST3126QSC
Fairchild/ON Semiconductor

IC SWITCH BUS 4BIT TTL 16QSOP

Package: 16-LSSOP (0.154", 3.90mm Width)

Stock4,544
74ACT138SJ
Fairchild/ON Semiconductor

DECODER/DEMUX 1-OF-8 16SOP

Package: 16-SOIC (0.209", 5.30mm Width)

Stock7,024
SN74CBTK6800DWR
Texas Instruments

IC 10-BIT FET BUS SW 24-SOIC

Package: 24-SOIC (0.295", 7.50mm Width)

Stock3,888
CBT3125DS,118
Nexperia USA Inc.

IC FET BUS SWITCH QUAD 16QSOP

Package: 16-SSOP (0.154", 3.90mm Width)

Stock6,640
ADN4600ACPZ-R7
Analog Devices Inc.

IC CROSSPOINT SWITCH 8X8 64LFCSP

Package: 64-VFQFN Exposed Pad, CSP

Stock7,856
74CBTLV16292PAG8
IDT, Integrated Device Technology Inc

IC BUS SW MUX/DEMUX 12B 56TSSOP

Package: 56-TFSOP (0.240", 6.10mm Width)

Stock7,136
PI3B3126QE-2017
Diodes Incorporated

BUS SWITCH 3V QSOP-16

Package: -

Stock3,104
QS3L384PAG8
IDT, Integrated Device Technology Inc

IC BUS SWITCH 10BIT HS 24-TSSOP

Package: 24-TSSOP (0.173", 4.40mm Width)

Stock2,128
74HC251PW,112
Nexperia USA Inc.

IC 8-INPUT MUX 3-ST 16TSSOP

Package: 16-TSSOP (0.173", 4.40mm Width)

Stock2,880
SN74AHC157DRG4
Texas Instruments

IC QUAD DATA SELECT/MUX 16-SOIC

Package: 16-SOIC (0.154", 3.90mm Width)

Stock6,944
74LVC157ABQ,115
Nexperia USA Inc.

IC QUAD 2-INPUT MUX 16-DHVQFN

Package: 16-VFQFN Exposed Pad

Stock3,504
74LCX257M
Fairchild/ON Semiconductor

MULTIPLEXER QUAD 2IN LV 16SOIC

Package: 16-SOIC (0.154", 3.90mm Width)

Stock52,608
PI3B3257LE
Diodes Incorporated

IC QUAD 2:1 MUX/DEMUX 16TSSOP

Package: 16-TSSOP (0.173", 4.40mm Width)

Stock7,332
MC100EP56DTR2G
ON Semiconductor

IC MUX DUAL 2:1 DIFF 5V 20-TSSOP

Package: 20-TSSOP (0.173", 4.40mm Width)

Stock14,064
74HCT153PW,112
Nexperia USA Inc.

IC DUAL 4-INPUT MUX 16-TSSOP

Package: 16-TSSOP (0.173", 4.40mm Width)

Stock34,578

Part Number	Manufacturer	Description	Package	Stock	Circuit	Independent Circuits	Current - Output High, Low	Voltage Supply Source	Voltage - Supply	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
74ACT11139DR	Texas Instruments	IC 2-4 LINE DECOD/DMUX 16-SOIC Type: Decoder/Demultiplexer Circuit: 1 x 2:4 Independent Circuits: 2 Current - Output High, Low: 24mA, 24mA Voltage Supply Source: Single Supply Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-SOIC (0.154", 3.90mm Width) Supplier Device Package: 16-SOIC	Package: 16-SOIC (0.154", 3.90mm Width)	Stock2,928	1 x 2:4	2	24mA, 24mA	Single Supply	4.5 V ~ 5.5 V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.154", 3.90mm Width)	16-SOIC
SN74S139ANSRE4	Texas Instruments	IC DUAL 2-4 DECOD/DUMUX 16SO Type: Decoder/Demultiplexer Circuit: 1 x 2:4 Independent Circuits: 2 Current - Output High, Low: 400µA, 8mA Voltage Supply Source: Single Supply Voltage - Supply: 4.75 V ~ 5.25 V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 16-SOIC (0.209", 5.30mm Width) Supplier Device Package: 16-SO	Package: 16-SOIC (0.209", 5.30mm Width)	Stock3,808	1 x 2:4	2	400µA, 8mA	Single Supply	4.75 V ~ 5.25 V	0°C ~ 70°C	Surface Mount	16-SOIC (0.209", 5.30mm Width)	16-SO
SN74AHCT157NSR	Texas Instruments	IC DATA SELECTOR/MUX 16SO Type: Multiplexer Circuit: 4 x 2:1 Independent Circuits: 1 Current - Output High, Low: 8mA, 8mA Voltage Supply Source: Single Supply Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-SOIC (0.209", 5.30mm Width) Supplier Device Package: 16-SO	Package: 16-SOIC (0.209", 5.30mm Width)	Stock7,248	4 x 2:1	1	8mA, 8mA	Single Supply	4.5 V ~ 5.5 V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.209", 5.30mm Width)	16-SO
74LV251DB,118	NXP	IC 8-INPUT MUX 3-ST 16SSOP Type: Multiplexer Circuit: 1 x 8:1 Independent Circuits: 1 Current - Output High, Low: 6mA, 6mA Voltage Supply Source: Single Supply Voltage - Supply: 1 V ~ 3.6 V Operating Temperature: -40°C ~ 125°C Mounting Type: Surface Mount Package / Case: 16-SSOP (0.209", 5.30mm Width) Supplier Device Package: 16-SSOP	Package: 16-SSOP (0.209", 5.30mm Width)	Stock5,968	1 x 8:1	1	6mA, 6mA	Single Supply	1 V ~ 3.6 V	-40°C ~ 125°C	Surface Mount	16-SSOP (0.209", 5.30mm Width)	16-SSOP
FSTU3257MTCX	Fairchild/ON Semiconductor	MUX/DEMUX QUAD 2:1 TTL 16TSSOP Type: Multiplexer/Demultiplexer Circuit: 4 x 2:1 Independent Circuits: 1 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: 4 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 16-TSSOP	Package: 16-TSSOP (0.173", 4.40mm Width)	Stock3,152	4 x 2:1	1	-	Single Supply	4 V ~ 5.5 V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
FST3126QSC	Fairchild/ON Semiconductor	IC SWITCH BUS 4BIT TTL 16QSOP Type: Bus Switch Circuit: 1 x 1:1 Independent Circuits: 4 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: 4 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-LSSOP (0.154", 3.90mm Width) Supplier Device Package: 16-QSOP	Package: 16-LSSOP (0.154", 3.90mm Width)	Stock4,544	1 x 1:1	4	-	Single Supply	4 V ~ 5.5 V	-40°C ~ 85°C	Surface Mount	16-LSSOP (0.154", 3.90mm Width)	16-QSOP
74ACT138SJ	Fairchild/ON Semiconductor	DECODER/DEMUX 1-OF-8 16SOP Type: Decoder/Demultiplexer Circuit: 1 x 3:8 Independent Circuits: 1 Current - Output High, Low: 24mA, 24mA Voltage Supply Source: Single Supply Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-SOIC (0.209", 5.30mm Width) Supplier Device Package: 16-SOP	Package: 16-SOIC (0.209", 5.30mm Width)	Stock7,024	1 x 3:8	1	24mA, 24mA	Single Supply	4.5 V ~ 5.5 V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.209", 5.30mm Width)	16-SOP
SN74CBTK6800DWR	Texas Instruments	IC 10-BIT FET BUS SW 24-SOIC Type: Bus Switch Circuit: 10 x 1:1 Independent Circuits: 1 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 24-SOIC (0.295", 7.50mm Width) Supplier Device Package: 24-SOIC	Package: 24-SOIC (0.295", 7.50mm Width)	Stock3,888	10 x 1:1	1	-	Single Supply	4.5 V ~ 5.5 V	-40°C ~ 85°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
CBT3125DS,118	Nexperia USA Inc.	IC FET BUS SWITCH QUAD 16QSOP Type: Bus Switch Circuit: 1 x 1:1 Independent Circuits: 4 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP	Package: 16-SSOP (0.154", 3.90mm Width)	Stock6,640	1 x 1:1	4	-	Single Supply	4.5 V ~ 5.5 V	-40°C ~ 85°C	Surface Mount	16-SSOP (0.154", 3.90mm Width)	16-SSOP
ADN4600ACPZ-R7	Analog Devices Inc.	IC CROSSPOINT SWITCH 8X8 64LFCSP Type: Crosspoint Switch Circuit: 1 x 8:8 Independent Circuits: 1 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: 1.7 V ~ 3.6 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 64-VFQFN Exposed Pad, CSP Supplier Device Package: 64-LFCSP-VQ (9x9)	Package: 64-VFQFN Exposed Pad, CSP	Stock7,856	1 x 8:8	1	-	Single Supply	1.7 V ~ 3.6 V	-40°C ~ 85°C	Surface Mount	64-VFQFN Exposed Pad, CSP	64-LFCSP-VQ (9x9)
74CBTLV16292PAG8	IDT, Integrated Device Technology Inc	IC BUS SW MUX/DEMUX 12B 56TSSOP Type: Multiplexer/Demultiplexer Circuit: 12 x 1:2 Independent Circuits: 1 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: 2.3 V ~ 3.6 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 56-TFSOP (0.240", 6.10mm Width) Supplier Device Package: 56-TSSOP	Package: 56-TFSOP (0.240", 6.10mm Width)	Stock7,136	12 x 1:2	1	-	Single Supply	2.3 V ~ 3.6 V	-40°C ~ 85°C	Surface Mount	56-TFSOP (0.240", 6.10mm Width)	56-TSSOP
PI3B3126QE-2017	Diodes Incorporated	BUS SWITCH 3V QSOP-16 Type: - Circuit: - Independent Circuits: - Current - Output High, Low: - Voltage Supply Source: - Voltage - Supply: - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	Package: -	Stock3,104	-	-	-	-	-	-	-	-	-
QS3L384PAG8	IDT, Integrated Device Technology Inc	IC BUS SWITCH 10BIT HS 24-TSSOP Type: Bus FET Exchange Switch Circuit: 5 x 1:1 Independent Circuits: 2 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: 4.75 V ~ 5.25 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 24-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 24-TSSOP	Package: 24-TSSOP (0.173", 4.40mm Width)	Stock2,128	5 x 1:1	2	-	Single Supply	4.75 V ~ 5.25 V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
74HC251PW,112	Nexperia USA Inc.	IC 8-INPUT MUX 3-ST 16TSSOP Type: Multiplexer Circuit: 1 x 8:1 Independent Circuits: 1 Current - Output High, Low: 5.2mA, 5.2mA Voltage Supply Source: Single Supply Voltage - Supply: 2 V ~ 6 V Operating Temperature: -40°C ~ 125°C Mounting Type: Surface Mount Package / Case: 16-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 16-TSSOP	Package: 16-TSSOP (0.173", 4.40mm Width)	Stock2,880	1 x 8:1	1	5.2mA, 5.2mA	Single Supply	2 V ~ 6 V	-40°C ~ 125°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
SN74AHC157DRG4	Texas Instruments	IC QUAD DATA SELECT/MUX 16-SOIC Type: Multiplexer Circuit: 4 x 2:1 Independent Circuits: 1 Current - Output High, Low: 8mA, 8mA Voltage Supply Source: Single Supply Voltage - Supply: 2 V ~ 5.5 V Operating Temperature: -40°C ~ 125°C Mounting Type: Surface Mount Package / Case: 16-SOIC (0.154", 3.90mm Width) Supplier Device Package: 16-SOIC	Package: 16-SOIC (0.154", 3.90mm Width)	Stock6,944	4 x 2:1	1	8mA, 8mA	Single Supply	2 V ~ 5.5 V	-40°C ~ 125°C	Surface Mount	16-SOIC (0.154", 3.90mm Width)	16-SOIC
74LVC157ABQ,115	Nexperia USA Inc.	IC QUAD 2-INPUT MUX 16-DHVQFN Type: Multiplexer Circuit: 4 x 2:1 Independent Circuits: 1 Current - Output High, Low: 24mA, 24mA Voltage Supply Source: Single Supply Voltage - Supply: 1.2 V ~ 3.6 V Operating Temperature: -40°C ~ 125°C Mounting Type: Surface Mount Package / Case: 16-VFQFN Exposed Pad Supplier Device Package: 16-DHVQFN (2.5x3.5)	Package: 16-VFQFN Exposed Pad	Stock3,504	4 x 2:1	1	24mA, 24mA	Single Supply	1.2 V ~ 3.6 V	-40°C ~ 125°C	Surface Mount	16-VFQFN Exposed Pad	16-DHVQFN (2.5x3.5)
74LCX257M	Fairchild/ON Semiconductor	MULTIPLEXER QUAD 2IN LV 16SOIC Type: Multiplexer Circuit: 4 x 2:1 Independent Circuits: 1 Current - Output High, Low: 24mA, 24mA Voltage Supply Source: Single Supply Voltage - Supply: 2 V ~ 3.6 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-SOIC (0.154", 3.90mm Width) Supplier Device Package: 16-SOIC	Package: 16-SOIC (0.154", 3.90mm Width)	Stock52,608	4 x 2:1	1	24mA, 24mA	Single Supply	2 V ~ 3.6 V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.154", 3.90mm Width)	16-SOIC
PI3B3257LE	Diodes Incorporated	IC QUAD 2:1 MUX/DEMUX 16TSSOP Type: Multiplexer/Demultiplexer Circuit: 4 x 2:1 Independent Circuits: 1 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: 3 V ~ 3.6 V Operating Temperature: -40°C ~ 125°C Mounting Type: Surface Mount Package / Case: 16-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 16-TSSOP	Package: 16-TSSOP (0.173", 4.40mm Width)	Stock7,332	4 x 2:1	1	-	Single Supply	3 V ~ 3.6 V	-40°C ~ 125°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
MC100EP56DTR2G	ON Semiconductor	IC MUX DUAL 2:1 DIFF 5V 20-TSSOP Type: Differential Digital Multiplexer Circuit: 2 x 2:1 Independent Circuits: 1 Current - Output High, Low: - Voltage Supply Source: Dual Supply Voltage - Supply: ±3 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 20-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 20-TSSOP	Package: 20-TSSOP (0.173", 4.40mm Width)	Stock14,064	2 x 2:1	1	-	Dual Supply	±3 V ~ 5.5 V	-40°C ~ 85°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP
74HCT153PW,112	Nexperia USA Inc.	IC DUAL 4-INPUT MUX 16-TSSOP Type: Multiplexer Circuit: 2 x 4:1 Independent Circuits: 1 Current - Output High, Low: 4mA, 4mA Voltage Supply Source: Single Supply Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: -40°C ~ 125°C Mounting Type: Surface Mount Package / Case: 16-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 16-TSSOP	Package: 16-TSSOP (0.173", 4.40mm Width)	Stock34,578	2 x 4:1	1	4mA, 4mA	Single Supply	4.5 V ~ 5.5 V	-40°C ~ 125°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
FST6800WMX	ON Semiconductor	IC SWITCH BUS 10BIT TTL 24SOIC Type: Bus Switch Circuit: 10 x 1:1 Independent Circuits: 1 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: 4 V ~ 5.5 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 24-SOIC (0.295", 7.50mm Width) Supplier Device Package: 24-SOIC	Package: 24-SOIC (0.295", 7.50mm Width)	Stock2,624	10 x 1:1	1	-	Single Supply	4 V ~ 5.5 V	-40°C ~ 85°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
DM74ALS251M	ON Semiconductor	IC DATA SELECTOR/MUX 1-8 16SOIC Type: Multiplexer Circuit: 1 x 8:1 Independent Circuits: 1 Current - Output High, Low: 2.6mA, 24mA Voltage Supply Source: Single Supply Voltage - Supply: 4.5 V ~ 5.5 V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 16-SOIC (0.154", 3.90mm Width) Supplier Device Package: 16-SOIC	Package: 16-SOIC (0.154", 3.90mm Width)	Stock16,332	1 x 8:1	1	2.6mA, 24mA	Single Supply	4.5 V ~ 5.5 V	0°C ~ 70°C	Surface Mount	16-SOIC (0.154", 3.90mm Width)	16-SOIC
74AC257SJX	ON Semiconductor	MULTIPLEXER QUAD 2IN 3ST 16SOP Type: Multiplexer Circuit: 4 x 2:1 Independent Circuits: 1 Current - Output High, Low: 24mA, 24mA Voltage Supply Source: Single Supply Voltage - Supply: 2 V ~ 6 V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-SOIC (0.209", 5.30mm Width) Supplier Device Package: 16-SOP	Package: 16-SOIC (0.209", 5.30mm Width)	Stock7,520	4 x 2:1	1	24mA, 24mA	Single Supply	2 V ~ 6 V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.209", 5.30mm Width)	16-SOP
TC74HC251AP(F)	Toshiba Semiconductor and Storage	IC MULTIPLEXER 1 X 8:1 16DIP Type: Multiplexer Circuit: 1 x 8:1 Independent Circuits: 1 Current - Output High, Low: 5.2mA, 5.2mA Voltage Supply Source: Single Supply Voltage - Supply: 2 V ~ 6 V Operating Temperature: -40°C ~ 85°C Mounting Type: Through Hole Package / Case: 16-DIP (0.300", 7.62mm) Supplier Device Package: 16-DIP	Package: 16-DIP (0.300", 7.62mm)	Stock4,496	1 x 8:1	1	5.2mA, 5.2mA	Single Supply	2 V ~ 6 V	-40°C ~ 85°C	Through Hole	16-DIP (0.300", 7.62mm)	16-DIP
74FST6800DT	onsemi	BUS DRIVER Type: - Circuit: - Independent Circuits: - Current - Output High, Low: - Voltage Supply Source: - Voltage - Supply: - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	Package: -	Request a Quote	-	-	-	-	-	-	-	-	-
54LS154F-883C	Rochester Electronics, LLC	54LS154F/883C Type: - Circuit: - Independent Circuits: - Current - Output High, Low: - Voltage Supply Source: - Voltage - Supply: - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	Package: -	Request a Quote	-	-	-	-	-	-	-	-	-
100371PC	Fairchild Semiconductor	MULTIPLEXER, 100K SERIES Type: Multiplexer Circuit: 3 x 4:1 Independent Circuits: 1 Current - Output High, Low: - Voltage Supply Source: Single Supply Voltage - Supply: -4.2V ~ 5.7V Operating Temperature: 0°C ~ 85°C Mounting Type: Through Hole Package / Case: 24-DIP (0.400", 10.16mm) Supplier Device Package: 24-PDIP	Package: -	Request a Quote	3 x 4:1	1	-	Single Supply	-4.2V ~ 5.7V	0°C ~ 85°C	Through Hole	24-DIP (0.400", 10.16mm)	24-PDIP
9317CFM	National Semiconductor	DECODER/DRIVER, TTL Type: Decoder Circuit: 1 x 4:7 Independent Circuits: 1 Current - Output High, Low: 250µA, 20mA Voltage Supply Source: Single Supply Voltage - Supply: 4.5V ~ 5.5V Operating Temperature: -55°C ~ 125°C Mounting Type: Surface Mount Package / Case: 16-CFlatpack Supplier Device Package: 16-CFP	Package: -	Request a Quote	1 x 4:7	1	250µA, 20mA	Single Supply	4.5V ~ 5.5V	-55°C ~ 125°C	Surface Mount	16-CFlatpack	16-CFP