74HC191D NXP Semiconductors, 74HC191D Datasheet - Page 4
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74HC191D
Manufacturer Part Number
74HC191D
Description
IC, 74HC CMOS, SMD, 74HC191, SOIC16
Manufacturer
NXP Semiconductors
Datasheet
1.74HC191D.pdf
(14 pages)
Specifications of 74HC191D
Counter Type
Binary
Clock Frequency
39MHz
Count Maximum
15
Supply Voltage Range
2V To 6V
Logic Case Style
SOIC
No. Of Pins
16
Operating Temperature Range
-40°C To +125°C
Svhc
No SVHC
Base Number
74
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
74HC191D,653
Manufacturer:
NEXPERIA/安世
Quantity:
20 000
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