74LVC169 datasheet(2/22 Pages) NXP

2 / 22 page

74LVC169_5

Product data sheet

Rev. 05 — 8 June 2009

2 of 22

NXP Semiconductors

74LVC169

Presettable synchronous 4-bit up/down binary counter

In order for counting to occur, both pins CEP and CET must be LOW and pin PE must be

HIGH. The pin U/D input determines the direction of the counting. The terminal count

output pin TC output is normally HIGH and goes LOW, provided that pin CET is LOW,

when a counter reaches 15 in the count up mode.The pin TC output state is not a function

of the count-enable parallel (pin CEP) input level. Since pin TC signal is derived by

decoding the ﬂip-ﬂop states, there exists the possibility of decoding spikes on pin TC. For

this reason the use of pin TC as a clock signal is not recommended; see the following

logic equations:

Features

I 5 V tolerant inputs for interfacing with 5 V logic

I Wide supply voltage range from 1.2 V to 3.6 V

I CMOS low power consumption

I Direct interface with TTL levels

I Up/down counting

I Two count enable inputs for n-bit cascading

I Built-in look-ahead carry capability

I Presettable for programmable operation

I Complies with JEDEC standard JESD8-B / JESD36

I ESD protection:

N HBM JESD22-A114D exceeds 2000 V

N CDM JESD22-C101C exceeds 1000 V

I Multiple package options

I Speciﬁed from −40 °Cto+85 °C and from −40 °C to +125 °C.

Ordering information

count enable

CEP

CET

•

count up: TC

CET

U D

⁄

•

count down: TC

CET

U D

⁄

•

Table 1.

Ordering information

Type number

Temperature range

Package

Name

Description

Version

74LVC169D

−40 °C to +125 °C

SO16

plastic small outline package; 16 leads;

body width 3.9 mm

SOT109-1

74LVC169DB

−40 °C to +125 °C

SSOP16

plastic shrink small outline package; 16 leads;

body width 5.3 mm

SOT338-1

74LVC169PW

−40 °C to +125 °C

TSSOP16

plastic thin shrink small outline package; 16 leads;

body width 4.4 mm

SOT403-1

74LVC169BQ

−40 °C to +125 °C

DHVQFN16 plastic dual in-line compatible thermal enhanced very thin

quad ﬂat package; no leads; 16 terminals;

body 2.5

× 3.5 × 0.85 mm

SOT763-1

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