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Datasheet 54HC191 Equivalent ( PDF ) |
| N.º | Número de pieza | Descripción | Fabricantes | |
| 2 | 54HC191 | Synchronous Binary Up/Down Counters MM54HC190 MM74HC190 MM54HC191 MM74HC191
January 1988
MM54HC190 MM74HC190 Synchronous
Decade Up Down Counters with Mode
Control MM54HC191 MM74HC191
Synchronous Binary Up Down Counters
with Mode Control
General Description
These high speed synchronous counters utilize advanced silicon-gate CMO |
 National Semiconductor |
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| 1 | 54HC191 | 4 BIT SYNCHRONOUS UP/DOWN COUNTERS M54/M74HC190 M54/M74HC191
4 BIT SYNCHRONOUS UP/DOWN COUNTERS
. HIGH SPEED fMAX = 48 MHz (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C
. HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE IOH� |
 SGS-THOMSON |
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