74HCT191D NXP Semiconductors, 74HCT191D Datasheet - Page 12
74HCT191D
Manufacturer Part Number
74HCT191D
Description
Counter ICs SYNC BIN U/D COUNTER
Manufacturer
NXP Semiconductors
Datasheet
1.74HC191N652.pdf
(14 pages)
Specifications of 74HCT191D
Counter Type
Binary Counters
Mounting Style
SMD/SMT
Package / Case
SOT-109
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
74HCT191D,652
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
74HCT191D
Manufacturer:
PHILIPS/飞利浦
Quantity:
20 000
Philips Semiconductors
AC WAVEFORMS
December 1990
Presettable synchronous 4-bit binary
up/down counter
(1) HC : V
Fig.10 Waveforms showing the clock (CP) to output (Q
(1) HC : V
Fig.11 Waveforms showing the clock and count enable inputs (CP, CE) to ripple clock output (RC) propagation
(1) HC : V
HCT : V
HCT : V
HCT : V
maximum clock pulse frequency.
delays.
M
M
M
M
M
M
= 50%; V
= 1.3 V; V
= 50%; V
= 1.3 V; V
= 50%; V
= 1.3 V; V
I
I
I
Fig.12 Waveforms showing the input (D
I
I
I
= GND to V
= GND to V
= GND to V
= GND to 3 V.
= GND to 3 V.
= GND to 3 V.
CC
CC
CC
.
.
.
12
n
) propagation delays, the clock pulse width and the
n
) to output (Q
n
) propagation delays.
74HC/HCT191
Product specification