Electronic M54HC393 M74HC393 datasheet

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jojolucky

Posted: Mon May 26, 2008 1:17 am Post subject: Electronic M54HC393 M74HC393 datasheet

Joined: 12 Apr 2008 Posts: 41

M54HC393 M74HC393 datasheet and PDF[/url] download http://www.chinaicmart.com/suppliers/571/M54HC393.html

M54/74HC393 DESCRIPTION
The M54/74HC393 is a high speed CMOS DUAL BINARY COUNTER fabricated in silicon gate C2MOS technology. It has the same high speed performance of LSTTL combined with true COMS low power consumption.
This counter circuit contains independent ripple carry counters and two 4-bit ripple carry binary
counters, which can be cascated to create a single divide by 256 counter.
Each 4-bit counter is incremented on the high to low transition (negative edge) of the clock input,and
each has an independent clear input. When clear is set to low all four bits of each counter are set to a
low level. This enables count truncation and allows the implementation od divide by N counter configurations.
All inputs are equipped with protection circuits against static discharge and transient excess voltage.
FEATRUE
.HIGH SPEED
fMAX = 72 MHz (TYP.) AT VCC = 5 V
.LOWPOWER DISSIPATION
ICC = 4 mA (MAX.) AT TA = 25 °C
.HIGH NOISE IMMUNITY
VNIH= VNIL= 28%VCC (MIN.)
.OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 4 mA (MIN.)
.BALANCEDPROPAGATION DELAYS
tPLH = tPHL
.WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
.PIN AND FUNCTION COMPATIBLE
WITH 54/74LS393

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