74HC393D datasheet(4/21 Pages) NXP

4 / 21 page

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

floating or be connected to VCC.

Fig 7.

Pin configuration SSOP14 and TSSOP14

Fig 8.

Pin configuration DHVQFN14

Table 2.

Pin description

Symbol

Description

1CP

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

1MR

asynchronous master reset input (active HIGH)

1Q0

flip-flop output

1Q1

flip-flop output

1Q2

flip-flop output

1Q3

flip-flop output

GND

ground (0 V)

2Q3

flip-flop output

2Q2

flip-flop output

2Q1

flip-flop output

2Q0

flip-flop output

2MR

asynchronous master reset input (active HIGH)

2CP

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

VCC

supply voltage

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