74HC_HCT273

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© NXP Semiconductors N.V. 2016. All rights reserved.

Product data sheet

Rev. 5 — 26 February 2016

4 of 20

NXP Semiconductors

74HC273; 74HCT273

Octal D-type flip-flop with reset; positive-edge trigger

5.

Pinning information

5.1 Pinning

5.2 Pin description

(1) This is not a supply pin. The substrate is attached to this

pad using conductive die attach material. There is no

electrical or mechanical requirement to solder this pad.

However, if it is soldered, the solder land should remain

floating or be connected to GND.

Fig 5.

Pin configuration SO20, SSOP20 and

TSSOP20

Fig 6.

Pin configuration DHVQFN20

Table 2.

Pin description

Symbol

Pin

Description

MR

1

master reset input (active LOW)

Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7

2, 5, 6, 9, 12, 15, 16, 19

flip-flop output

D0, D1, D2, D3, D4, D5, D6, D7

3, 4, 7, 8, 13, 14, 17, 18

data input

GND

10

ground (0 V)

CP

11

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

VCC

20

supply voltage