74HCT191N,652 NXP Semiconductors, 74HCT191N,652 Datasheet - Page 4

• Manufacturer Part Number: 74HCT191N,652
• Description: IC COUNTER UP/DOWN SYNC 16-DIP
• Manufacturer: NXP Semiconductors
• Series: 74HCTr

Specifications of 74HCT191N,652

• Package / Case: 16-DIP (0.300", 7.62mm)
• Logic Type: Binary Counter
• Direction: Up, Down
• Number Of Elements: 1
• Number Of Bits Per Element: 4
• Timing: Synchronous
• Count Rate: 39MHz
• Trigger Type: Positive Edge
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Reset: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 74HCT191N; 74HCT191N; 933670090652

Philips Semiconductors
PIN DESCRIPTION
December 1990
PIN NO.
3, 2, 6, 7
4
5
8
11
12
13
14
15, 1, 10, 9
16
Presettable synchronous 4-bit binary
up/down counter
Fig.1 Pin configuration.
SYMBOL
Q
CE
U/D
GND
PL
TC
RC
CP
D
V
CC
0
0
to D
to Q
3
3
Fig.2 Logic symbol.
NAME AND FUNCTION
flip-flop outputs
count enable input (active LOW)
up/down input
ground (0 V)
parallel load input (active LOW)
terminal count output
ripple clock output (active LOW)
clock input (LOW-to-HIGH, edge triggered)
data inputs
positive supply voltage
4
Fig.3 IEC logic symbol.
74HC/HCT191
Product specification