74HC191D NXP Semiconductors, 74HC191D Datasheet - Page 14

• Manufacturer Part Number: 74HC191D
• Description: IC, 74HC CMOS, SMD, 74HC191, SOIC16
• Manufacturer: NXP Semiconductors

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

Philips Semiconductors
PACKAGE OUTLINES
See
December 1990
Presettable synchronous 4-bit binary
up/down counter
Fig.16 Waveforms showing the set-up and hold times from the parallel load input (PL) to the data input (D
Fig.17 Waveforms showing the set-up and hold times from the count enable and up/down inputs (CE, U/D) to the
“74HC/HCT/HCU/HCMOS Logic Package Outlines”
The shaded areas indicate when the input is
permitted to change for predictable output
performance.
(1) HC : V
The shaded areas indicate when the input is
permitted to change for predictable output
performance.
(1) HC : V
HCT : V
HCT : V
clock (CP).
M
M
M
M
= 50%; V
= 1.3 V; V
= 50%; V
= 1.3 V; V
I
I
I
I
= GND to V
= GND to V
= GND to 3 V.
= GND to 3 V.
CC
CC
.
.
.
14
74HC/HCT191
Product specification
n
).