74HC193 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

MFG CO.

74HC193

Presettable synchronous 4-bit binary up/down counter

NXP Semiconductors. 

NXP Semiconductors

74HC193; 74HCT193

Presettable synchronous 4-bit binary up/down counter

6. Functional description

Table 3. Function table[1]

Operating mode

Inputs

Outputs

MR PL CPU CPD D0 D1 D2 D3 Q0 Q1 Q2 Q3 TCU TCD

Reset (clear)

HXXL XXXXL L L L HL

HXXHXXXXL L L L HH

Parallel load

L L XL L L L L L L L L HL

L L XHL L L L L L L L HH

L L L XHHHHHHHHL H

L L HXHHHHHHHHHH

Count up

L H  H X X X X count up

H[2] H

Count down

L H H  X X X X count down

H

H[3]

[1] H = HIGH voltage level

L = LOW voltage level

X = don’t care

 = LOW-to-HIGH clock transition.

[2] TCU = CPU at terminal count up (HHHH)

[3] TCD = CPD at terminal count down (LLLL).

74HC_HCT193

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 4 — 24 June 2013

© NXP B.V. 2013. All rights reserved.

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