74HC393 IC - (SMD Package) - Dual 4-bit Binary Ripple Counter IC (74393 IC)

The 74HC393 counter circuits contain independent ripple carry counters and utilize advanced silicon-gate CMOS technology. The 74HC393 contains two 4-bit ripple carry binary counters, which can be cascaded to create a single divide-by-256 counter. Each of the two 4-bit counters is incremented on the HIGHto-LOW transition (negative edge) of the clock input, and each has an independent clear input. When clear is set HIGH all four bits of each counter are set to a low level. This enables count truncation and allows the implementation of divide-by-N counter configurations. Each of the counters outputs can drive 10 low power Schottky TTL equivalent loads. This counter is functionally as well as pin equivalent to the 74LS393. All inputs are protected from damage due to static discharge by diodes to VCC and ground.

Features:-

• Typical operating frequency: 50 MHz

• Typical propagation delay: 13 ns (Ck to QA)

• Wide operating supply voltage range: 2–6V

• Low input current: <1 µA

• Low quiescent supply current: 80 µA maximum (74HC Series)

• Fanout of 10 LS-TTL loads

Specification:-

Symbol	Parameter	Value	Unit
VCC	Supply Voltage	− 0.5 to + 7.0V	V
VIN	DC Input Voltage	− 1.5 to VCC + 1.5V	V
VOUT	DC Output Voltage	− 0.5 to VCC + 0.5V	V
IIK, IOK	Clamp Diode Current	± 20	mA
IOUT	DC Output Current, per pin	± 25	mA
ICC	DC VCC or GND Current, per pin	± 50	mA
TSTG	Storage Temperature Range	− 65°C to + 150	°C
PD	Power Dissipation	500	mW
TL	Lead Temperature	260	°C

Related Document:-

74HC393 SMD Data Sheet