Datasheet

1. General description
The 74HC393; 7474HCT393 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 V
CC
.
2. Features and benefits
 Input levels:
 For 74HC393: CMOS level
 For 74HCT393: TTL level
 Complies with JEDEC standard no. 7A
 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
74HC393; 74HCT393
Dual 4-bit binary ripple counter
Rev. 5 — 1 April 2014 Product data sheet
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74HC393N 40 C to +125 C DIP14 plastic dual in-line package; 14 leads (300 mil) SOT27-1
74HCT393N
74HC393D 40 C to +125 C SO14 plastic small outline package; 14 leads; body width 3.9 mm SOT108-1
74HCT393D
74HC393DB 40 C to +125 C SSOP14 plastic shrink small outline package; 14 leads; body width
5.3 mm
SOT337-1
74HCT393DB
74HC393PW 40 C to +125 C TSSOP14 plastic thin shrink small outline package; 14 leads; body
width 4.4 mm
SOT402-1
74HCT393PW
74HC393BQ 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
74HCT393BQ