74HCT401 datasheet(3/11 Pages) PHILIPS

Teilenummer	74HCT401

Bauteilbeschribung	8-bit synchronous BCD down counter

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Hersteller	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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3 / 11 page

December 1990

3

Philips Semiconductors

Product speciﬁcation

8-bit synchronous BCD down counter

74HC/HCT40102

2. For HC the condition is VI = GND to VCC

For HCT the condition is VI = GND to VCC − 1.5 V

ORDERING INFORMATION

See

“74HC/HCT/HCU/HCMOS Logic Package Information”.

PIN DESCRIPTION

PIN NO.

SYMBOL

NAME AND FUNCTION

1

CP

clock input (LOW-to-HIGH, edge-triggered)

2

MR

asynchronous master reset input (active LOW)

3

TE

terminal enable input

4, 5, 6, 7, 10, 11, 12, 13

P0 to P7

jam inputs

8

GND

ground (0 V)

9

PL

asynchronous preset enable input (active LOW)

14

TC

terminal count output (active LOW)

15

PE

synchronous preset enable input (active LOW)

16

VCC

positive supply voltage

Fig.1 Pin configuration.

Fig.2 Logic symbol.

Fig.3 IEC logic symbol.

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