74HC_HCT393

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Product data sheet

Rev. 4 — 16 May 2013

4 of 21

NXP Semiconductors

74HC393; 74HCT393

Dual 4-bit binary ripple counter

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

Fig 7.

Pin configuration SSOP14 and TSSOP14

Fig 8.

Pin configuration DHVQFN14

Table 2.

Pin description

Symbol

Pin

Description

1CP

1

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

1MR

2

asynchronous master reset input (active HIGH)

1Q0

3

flip-flop output

1Q1

4

flip-flop output

1Q2

5

flip-flop output

1Q3

6

flip-flop output

GND

7

ground (0 V)

2Q3

8

flip-flop output

2Q2

9

flip-flop output

2Q1

10

flip-flop output

2Q0

11

flip-flop output

2MR

12

asynchronous master reset input (active HIGH)

2CP

13

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

14

supply voltage