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74HC164BQ

8-bit serial-in, parallel-out shift register

Nexperia B.V. All rights reserved 

74HC164; 74HCT164

8-bit serial-in, parallel-out shift register

Rev. 9 — 11 June 2020

Product data sheet

1. General description

The 74HC164; 74HCT164 is an 8-bit serial-in/parallel-out shift register. The device features two

serial data inputs (DSA and DSB), eight parallel data outputs (Q0 to Q7). Data is entered serially

through DSA or DSB and either input can be used as an active HIGH enable for data entry through

the other input. Data is shifted on the LOW-to-HIGH transitions of the clock (CP) input. A LOW on

the master reset input (MR) clears the register and forces all outputs LOW, independently of other

inputs. Inputs include clamp diodes. This enables the use of current limiting resistors to interface

inputs to voltages in excess of VCC.

2. Features and benefits

• Wide supply voltage range from 2.0 to 6.0 V

• CMOS low power dissipation

• High noise immunity

• Input levels:

• For 74HC164: CMOS level

• For 74HCT164: TTL level

• Gated serial data inputs

• Asynchronous master reset

• Complies with JEDEC standards

• JESD8C (2.7 V to 3.6 V)

• JESD7A (2.0 V to 6.0 V)

• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

• 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 -40 °C to +125 °C.

3. Ordering information

Table 1. Ordering information

Type number Package

Temperature range Name

74HC164D

-40 °C to +125 °C SO14

74HCT164D

74HC164DB -40 °C to +125 °C SSOP14

74HCT164DB

74HC164PW -40 °C to +125 °C TSSOP14

74HCT164PW

74HC164BQ -40 °C to +125 °C DHVQFN14

74HCT164BQ

Description

plastic small outline package; 14 leads;

body width 3.9 mm

plastic shrink small outline package; 14 leads;

body width 5.3 mm

plastic thin shrink small outline package; 14 leads;

body width 4.4 mm

plastic dual in-line compatible thermal enhanced

very thin quad flat package; no leads; 14 terminals;

body 2.5 × 3 × 0.85 mm

Version

SOT108-1

SOT337-1

SOT402-1

SOT762-1

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