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M74HC191

ST Microelectronics
Part Number M74HC191
Manufacturer ST Microelectronics
Description 4 BIT SYNCHRONOUS UP/DOWN COUNTERS
Published May 6, 2005
Detailed Description M54/M74HC190 M54/M74HC191 4 BIT SYNCHRONOUS UP/DOWN COUNTERS . . . . . . . . HIGH SPEED fMAX = 48 MHz (TYP.) AT VCC = ...
Datasheet PDF File M74HC191 PDF File

M74HC191
M74HC191


Overview
M54/M74HC190 M54/M74HC191 4 BIT SYNCHRONOUS UP/DOWN COUNTERS .
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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 = IOL = 4 mA (MIN.
) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V PIN AND FUNCTION COMPATIBLE WITH 54/74LS190/191 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HCXXXF1R M74HCXXXM1R M74HCXXXB1R M74HCXXXC1R PIN CONNECTIONS (top view) DESCRIPTION The M54/74HC190/191 are high speed CMOS 4-BIT S...



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