74HC157; 74HCT157

Quad 2-input multiplexer

The 74HC157; 74HCT157 is a quad 2-input multiplexer. The device features select (S) and enable E inputs. A HIGH on S selects data source 1, a LOW data source 0. A HIGH on E forces all the outputs (1Y to 4Y) LOW. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V_CC.

Features and benefits

Wide supply voltage range from 2.0 V to 6.0 V
CMOS low power dissipation
High noise immunity
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards:
- JESD8C (2.7 V to 3.6 V)
- JESD7A (2.0 V to 6.0 V)
Input levels:
- For 74HC157: CMOS level
- For 74HCT157: TTL level
Non-inverting data path
ESD protection:
- HBM JESD22-A114F exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Parametrics

Type number	Product status	V_CC (V)	Logic switching levels	Output drive capability (mA)	t_pd (ns)	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name
74HC157BQ	Production	2.0 - 6.0	CMOS	± 5.2	11	low	-40~125	92	13.1	61	DHVQFN16
74HC157D	Production	2.0 - 6.0	CMOS	± 5.2	11	low	-40~125	92	9.2	51	SO16
74HC157PW	Production	2.0 - 6.0	CMOS	± 5.2	11	low	-40~125	124	4.4	53.6	TSSOP16
74HCT157BQ	Production	4.5 - 5.5	TTL	± 4	13	low	-40~125	92	13.1	61	DHVQFN16
74HCT157D	Production	4.5 - 5.5	TTL	± 4	13	low	-40~125	92	9.2	51	SO16
74HCT157PW	Production	4.5 - 5.5	TTL	± 4	13	low	-40~125	124	4.4	53.6	TSSOP16

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74HC157BQ	DHVQFN16 (SOT763-1)	SOT763-1		SOT763-1_115	Active	HC157	74HC157BQ,115 ( 9352 944 23115 )
74HC157D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_653	Active	74HC157D	74HC157D,653 ( 9337 137 40653 )
74HC157PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	HC157	74HC157PW,118 ( 9351 868 80118 )
74HCT157BQ	DHVQFN16 (SOT763-1)	SOT763-1		SOT763-1_115	Active	HCT157	74HCT157BQ,115 ( 9352 944 24115 )
74HCT157D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_653	Active	74HCT157D	74HCT157D,653 ( 9337 137 50653 )
74HCT157PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	HCT157	74HCT157PW,118 ( 9351 885 40118 )

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74HC157D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_652	Withdrawn / End-of-life	74HC157D	74HC157D,652 ( 9337 137 40652 )
74HC157PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_112	Withdrawn / End-of-life	HC157	74HC157PW,112 ( 9351 868 80112 )
74HCT157D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_652	Withdrawn / End-of-life	74HCT157D	74HCT157D,652 ( 9337 137 50652 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product
74HC157D	933713740652	2021-12-31	2022-06-30	74HC157D
74HC157PW	935186880112	2021-12-31	2022-06-30	74HC157PW
74HCT157D	933713750652	2021-12-31	2022-06-30	74HCT157D
74HCT157PW	935188540112	2021-12-31	2022-06-30	74HCT157PW

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74HC157BQ	74HC157BQ,115	74HC157BQ	Always Pb-free
74HC157D	74HC157D,653	74HC157D	week 35, 2004
74HC157PW	74HC157PW,118	74HC157PW	week 10, 2005
74HCT157BQ	74HCT157BQ,115	74HCT157BQ	Always Pb-free
74HCT157D	74HCT157D,653	74HCT157D	week 12, 2005
74HCT157PW	74HCT157PW,118	74HCT157PW	week 10, 2005

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Orderable part number	Chemical content	Leadfree conversion date
74HC157D	74HC157D,652	74HC157D	week 35, 2004
74HC157PW	74HC157PW,112	74HC157PW	week 10, 2005
74HCT157D	74HCT157D,652	74HCT157D	week 12, 2005

Quality and reliability disclaimer

Documentation (12)

File name	Title	Type	Date
74HC_HCT157	Quad 2-input multiplexer	Data sheet	2020-07-24
AN11044	Pin FMEA 74HC/74HCT family	Application note	2019-01-09
hc157	74HC157 IBIS model	IBIS model	2015-11-02
hct157	74HCT157 IBIS model	IBIS model	2015-11-02
HCT_USER_GUIDE	HC/T User Guide	User manual	1997-10-31
SOT763-1	plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm body	Package information	2023-05-11
SO-SOJ-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SO-SOJ-REFLOW	Footprint for reflow soldering	Reflow soldering	2009-10-08
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08
SOT109-1	plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body	Package information	2023-11-07
SOT403-1	plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body	Package information	2023-11-08
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08

Support

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Models

File name	Title	Type	Date
hc157	74HC157 IBIS model	IBIS model	2015-11-02
hct157	74HCT157 IBIS model	IBIS model	2015-11-02

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