74HC595; 74HCT595

8-bit serial-in, serial or parallel-out shift register with output latches; 3-state

The 74HC595; 74HCT595 is an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs. Both the shift and storage register have separate clocks. The device features a serial input (DS) and a serial output (Q7S) to enable cascading and an asynchronous reset MR input. A LOW on MR will reset the shift register. Data is shifted on the LOW-to-HIGH transitions of the SHCP input. The data in the shift register is transferred to the storage register on a LOW-to-HIGH transition of the STCP input. If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register. Data in the storage register appears at the output whenever the output enable input (OE) is LOW. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the registers. 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
8-bit serial input
8-bit serial or parallel output
Storage register with 3-state outputs
Shift register with direct clear
100 MHz (typical) shift out frequency
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 74HC595: CMOS level
- For 74HCT595: TTL level
ESD protection:
- HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Applications

Serial-to-parallel data conversion
Remote control holding register

Parametrics

Type number	Product status	V_CC (V)	Logic switching levels	Output drive capability (mA)	t_pd (ns)	f_max (MHz)	Nr of bits	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
74HC595BQ	Production	2.0 - 6.0	CMOS	± 7.8	16	108	8	low	-40~125	91	12.2	60	DHVQFN16
74HC595BZ	Production	2.0 - 6.0	CMOS	± 7.8	16	108	8	low	-40~125	93	-	64	DHXQFN16
74HC595D	Production	2.0 - 6.0	CMOS	± 7.8	16	108	8	low	-40~125	90	8.6	49	SO16
74HC595PW	Production	2.0 - 6.0	CMOS	± 7.8	16	108	8	low	-40~125	123	4.1	52.2	TSSOP16
74HCT595BQ	Production	4.5 - 5.5	TTL	± 6	25	57	8	low	-40~125	91	12.2	60	DHVQFN16
74HCT595D	Production	4.5 - 5.5	TTL	± 6	25	57	8	low	-40~125	90	8.6	49.3	SO16
74HCT595PW	Production	4.5 - 5.5	TTL	± 6	25	57	8	low	-40~125	123	4.1	52.2	TSSOP16

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74HC595BQ	DHVQFN16 (SOT763-1)	SOT763-1		SOT763-1_115	Active	HC595	74HC595BQ,115 ( 9352 736 79115 )
74HC595BZ	DHXQFN16 (SOT8016-1)	SOT8016-1		SOT8016-1_115	Active	H595	74HC595BZX ( 9356 911 42115 )
74HC595D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_118	Active	74HC595D	74HC595D,118 ( 9350 091 60118 )
74HC595PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	HC595	74HC595PW,118 ( 9351 885 20118 )
74HCT595BQ	DHVQFN16 (SOT763-1)	SOT763-1		SOT763-1_115	Active	HCT595	74HCT595BQ,115 ( 9352 737 33115 )
74HCT595D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_118	Active	74HCT595D	74HCT595D,118 ( 9350 091 80118 )
74HCT595PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	HCT595	74HCT595PW,118 ( 9352 009 90118 )

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))
74HC595D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_112	Withdrawn / End-of-life	74HC595D	74HC595D,112 ( 9350 091 60112 )
74HC595PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_112	Withdrawn / End-of-life	HC595	74HC595PW,112 ( 9351 885 20112 )
74HCT595D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_112	Withdrawn / End-of-life	74HCT595D	74HCT595D,112 ( 9350 091 80112 )
74HCT595PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_112	Withdrawn / End-of-life	HCT595	74HCT595PW,112 ( 9352 009 90112 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product
74HC595D	935009160112	2021-12-31	2022-06-30	74HC595D
74HC595PW	935188520112	2021-12-31	2022-06-30	74HC595PW
74HC595PW	935188520818
74HCT595D	935009180112	2021-12-31	2022-06-30	74HCT595D
74HCT595PW	935200990112	2021-12-31	2022-06-30	74HCT595PW

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74HC595BQ	74HC595BQ,115	74HC595BQ	Always Pb-free
74HC595BZ	74HC595BZX	74HC595BZ
74HC595D	74HC595D,118	74HC595D	week 12, 2005
74HC595PW	74HC595PW,118	74HC595PW	week 10, 2005
74HCT595BQ	74HCT595BQ,115	74HCT595BQ	Always Pb-free
74HCT595D	74HCT595D,118	74HCT595D	week 12, 2005
74HCT595PW	74HCT595PW,118	74HCT595PW	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
74HC595D	74HC595D,112	74HC595D	week 12, 2005
74HC595PW	74HC595PW,112	74HC595PW	week 10, 2005
74HCT595D	74HCT595D,112	74HCT595D	week 12, 2005
74HCT595PW	74HCT595PW,112	74HCT595PW	week 10, 2005

Quality and reliability disclaimer

Documentation (13)

File name	Title	Type	Date
74HC_HCT595	8-bit serial-in, serial or parallel-out shift register with output latches; 3-state	Data sheet	2024-03-20
AN11044	Pin FMEA 74HC/74HCT family	Application note	2019-01-09
hc595	IBIS model of 74HC595	IBIS model	2021-02-02
hc	HC/HCT Spice model	SPICE model	2022-02-17
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
SOT8016-1	plastic, leadless dual in-line compatible thermal enhanced extreme thin quad flat package;no leads; 16 terminals; 0.4 mm pitch; body 2 mm x 2.4 mm x 0.48 mm	Package information	2023-02-03
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

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Models

File name	Title	Type	Date
hc595	IBIS model of 74HC595	IBIS model	2021-02-02
hc	HC/HCT Spice model	SPICE model	2022-02-17

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