Datasheet

PCA9537_5 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 05 — 7 May 2009 21 of 24
NXP Semiconductors
PCA9537
4-bit I
2
C-bus and SMBus low power I/O port with interrupt and reset
16. Revision history
Table 15. Revision history
Document ID Release date Data sheet status Change notice Supersedes
PCA9537_5 20090507 Product data sheet - PCA9537_4
Modifications:
• The format of this data sheet has been redesigned to comply with the new identity guidelines of
NXP Semiconductors.
• Legal texts have been adapted to the new company name where appropriate.
• Pin names changed from “I/O0, I/O1, I/O2, I/O3” to “IO0, IO1, IO2, IO3”, respectively
• Section 6.4 “RESET input”, 1st sentence: changed symbol from “t
W
” to “t
w(rst)
”
• Figure 5 “Write to output port register”: changed symbol from “t
pv
” to “t
v(Q)
”
• Figure 8 “Read input port register”:
– changed symbol from “t
ph
” to “t
h(D)
”
– changed symbol from “t
ps
” to “t
su(D)
”
– changed symbol from “t
iv
” to “t
v(INT)
”
– changed symbol from “t
ir
” to “t
rst(INT)
”
• Table 8 “Limiting values”:
– parameter description for symbol V
I/O
changed from “DC voltage on an I/O” to “voltage on an
input/output pin”
– parameter description for symbol I
SS
changed from “supply current” to “ground supply current”
– symbol/parameter changed from “I
I/O
, DC output current on an I/O” to “I
O(IOn)
, output current
on pin IOn”
• Table 9 “Static characteristics”, sub-section “Supplies”:
– symbol/parameter changed from “I
stbl
, Standby current” to “I
stbL
, LOW-level standby current”
– symbol/parameter changed from “I
stbh
, Standby current” to “I
stbH
, HIGH-level standby current”
• Table 10 “Dynamic characteristics”, sub-section “Port timing”:
– symbol/parameter changed from “t
PV
, Output data valid” to “t
v(Q)
, data output valid time”
– symbol/parameter changed from “t
PS
, Input data setup time” to “t
su(D)
, data input set-up time”
– symbol/parameter changed from “t
PH
, Input data hold time” to “t
h(D)
, data input hold time”
• Table 10 “Dynamic characteristics”, sub-section “Interrupt timing”:
– symbol/parameter changed from “t
IV
, Interrupt valid” to “t
v(INT)
, valid time on pin INT”
– symbol/parameter changed from “t
IR
, Interrupt reset” to “t
rst(INT)
, reset time on pin INT”
• Table 10 “Dynamic characteristics”, sub-section “RESET”:
– symbol changed from “t
W
” to “t
w(rst)
”
– symbol changed from “t
REC
” to “t
rec(rst)
”
– symbol/parameter changed from “t
RESET
, Time to reset” to “t
rst
, reset time”
• Figure 14 “Definition of RESET timing”:
– symbol changed from “t
W
” to “t
w(rst)
”
– symbol changed from “t
REC
” to “t
rec(rst)
”
– symbol changed from “t
RESET
” to “t
rst
”
• Figure 15 “Expanded view of read input port register”:
– changed symbol from “t
PH
” to “t
h(D)
”
– changed symbol from “t
PS
” to “t
su(D)
”
– changed symbol from “t
IV
” to “t
v(INT)
”
– changed symbol from “t
IR
” to “t
rst(INT)
”