PCF8574ATSSLASH3 datasheet(30/33 Pages) NXP

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PCF8574_PCF8574A

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Product data sheet

Rev. 5 — 27 May 2013

30 of 33

NXP Semiconductors

PCF8574; PCF8574A

Remote 8-bit I/O expander for I2C-bus with interrupt

Modifications: (continued)

• Table 7 “Limiting values”:

– changed parameter description for symbol II from “DC input current” to “input current”

– changed parameter description for symbol IO from “DC output current” to “output

current”

– changed parameter description for symbol ISS from “supply current” to “ground supply

current”

– changed symbol “PO” to “P/out”

– added Tj(max) limits

• Added Section 12 “Thermal characteristics”

• Table 9 “Static characteristics”:

– table title changed from “DC characteristics” to “Static characteristics”

– sub-section “I/Os; P0 to P7”: changed parameter description for symbol Itrt(pu)

from “transient pull-up current” to “transient boosted pull-up current”

– moved sub-section “Port timing” to Table 10 “Dynamic characteristics”

– sub-section “Interrupt INT”: moved sub-sub-section “Timing” to Table 10 “Dynamic

characteristics”

• Table 10 “Dynamic characteristics”:

– sub-section “I2C-bus timing”: deleted symbol/parameter “tSW, tolerable spike width on

bus”

– sub-section “Port timing”: changed symbol/parameter from “tpv, output data valid time”

to “tv(Q), data output valid time”

– sub-section “Port timing”: changed symbol/parameter from “tsu, input data set-up time”

to “tsu(D), data input set-up time”

– sub-section “Port timing”: changed symbol/parameter from “th, input data hold time”

to “th(D), data input hold time”

– sub-section “Interrupt INT”: changed parameter description for symbol tv(INT)

from “INT output valid time” to “valid time on pin INT”

– sub-section “Interrupt INT”: changed parameter description for symbol trst(INT)

from “INT reset delay time” to “reset time on pin INT”

• Added Section 19 “Soldering: PCB footprints”

PCF8574 v.4

(9397 750 10462)

20021122

Product specification

PCF8574 v.3

(9397 750 09911)

20020729

Product specification

PCF8574 v.2

(9397 750 01758)

19970402

Product specification

PCF8574_PCF8574A v.1

(9397 750 70011)

199409

Product specification

Table 15.

Revision history …continued

Document ID

Release date

Data sheet status

Change notice

Supersedes

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