74HC597; 74HCT597

8-bit shift register with input flip-flops

The 74HC597; 74HCT597 is an 8-bit shift register with input flip-flops. It consists of an 8-bit storage register feeding a parallel-in, serial-out 8-bit shift register. Both the storage register and the shift register have positive edge-triggered clocks. The shift register also has direct load (from storage) and clear inputs. Inputs include clamp diodes that enable 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
Input levels:
- For 74HC597: CMOS level
- For 74HCT597: TTL level
8-bit parallel storage register inputs
Shift register has direct overriding load and clear
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)
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

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
74HC597D	Production	2.0 - 6.0	CMOS	± 5.2	16	108	8	low	-40~125	74	1.5	32	SO16
74HC597PW	Production	2.0 - 6.0	CMOS	± 5.2	16	108	8	low	-40~125	109	1.0	36.3	TSSOP16
74HCT597D	Production	4.5 - 5.5	TTL	± 4	20	83	8	low	-40~125	74	1.5	32.3	SO16
74HCT597PW	Production	4.5 - 5.5	TTL	± 4	20	83	8	low	-40~125	74	1.5	32.3	TSSOP16

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74HC597D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_653	Active	74HC597D	74HC597D,653 ( 9337 573 30653 )
74HC597PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	HC597	74HC597PW,118 ( 9351 891 50118 )
74HCT597D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_653	Active	74HCT597D	74HCT597D,653 ( 9337 573 50653 )
74HCT597PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	4HCT597	74HCT597PWJ ( 9356 912 12118 )

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))
74HC597D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_652	Withdrawn / End-of-life	74HC597D	74HC597D,652 ( 9337 573 30652 )
74HCT597D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_652	Withdrawn / End-of-life	74HCT597D	74HCT597D,652 ( 9337 573 50652 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product
74HC597D	933757330652	2021-12-31	2022-06-30	74HC597D
74HC597PW	935189150112	2021-12-31	2022-06-30	74HC597PW
74HCT597D	933757350652	2021-12-31	2022-06-30	74HCT597D

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74HC597D	74HC597D,653	74HC597D	week 30, 2004
74HC597PW	74HC597PW,118	74HC597PW	week 10, 2005
74HCT597D	74HCT597D,653	74HCT597D	week 6, 2004
74HCT597PW	74HCT597PWJ	74HCT597PW

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

Type number	Orderable part number	Chemical content	RoHS	RHF-indicator	Leadfree conversion date
74HC597D	74HC597D,652	74HC597D			week 30, 2004
74HCT597D	74HCT597D,652	74HCT597D			week 6, 2004

Quality and reliability disclaimer

Documentation (9)

File name	Title	Type	Date
74HC_HCT597	8-bit shift register with input flip-flops	Data sheet	2024-03-21
AN11044	Pin FMEA 74HC/74HCT family	Application note	2019-01-09
HCT_USER_GUIDE	HC/T User Guide	User manual	1997-10-31
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

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