74HC393; 74HCT393

Dual 4-bit binary ripple counter

Rev. 8 — 22 October 2021

Product data sheet

1. General description

The 74HC393; 74HCT393 is a dual 4-stage binary ripple counter. Each counter features a clock

input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs

(nQ0 to nQ3). The counter advances on the HIGH-to-LOW transition of nCP. A HIGH on nMR

clears the counter stages and forces the outputs LOW, independent of the state of nCP. 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 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 74HC393: CMOS level

• For 74HCT393: TTL level

• ESD protection:

• HBM JESD22-A114F exceeds 2000 V

• MM JESD22-A115-A exceeds 200 V.

• Two 4-bit binary counters with individual clocks

• Divide by any binary module up to 28 in one package

• Two master resets to clear each 4-bit counter individually

3. Ordering information

Table 1. Ordering information

Package

Type number

Temperature range Name

Description

Version

74HC393D

74HCT393D

-40 °C to +125 °C

SO14

plastic small outline package; 14 leads;

body width 3.9 mm

SOT108-1

74HC393PW

74HCT393PW

-40 °C to +125 °C

TSSOP14

plastic thin shrink small outline package; 14 leads;

body width 4.4 mm

SOT402-1

74HC393BQ

74HCT393BQ

-40 °C to +125 °C

DHVQFN14 plastic dual in-line compatible thermal enhanced

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

body 2.5 × 3 × 0.85 mm

SOT762-1