pca9557bs NXP Semiconductors, pca9557bs Datasheet - Page 24

• Manufacturer Part Number: pca9557bs
• Description: 8-bit I2c And Smbus I/0 Port With Reset
• Manufacturer: NXP Semiconductors

NXP Semiconductors
17. Revision history
Table 15.
PCA9557_5
Product data sheet
Document ID
PCA9557_5
Modifications:
PCA9557_4
(9397 750 13336)
PCA9557_3
(9397 750 10872)
PCA9557_2
(9397 750 09819)
PCA9557_1
Revision history
Release date
20070912
20041124
20021213
20020513
20011212
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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.
Section 5 “Pinning
Figure 3 “Simplified schematic of IO1 to
to IO7”
Section 7.5 “RESET
Figure 14 “Write to output port
Figure 17 “Read input port
– changed symbol “t
– changed symbol “t
Figure 18 “Typical
– lower right corner of diagram: changed “V
– Figure’s notes re-written
Section 9.1 “Minimizing I
sentence re-written.
Figure 19 “High value resistor in parallel with the
Figure 20 “Device supplied by a lower
Table 9 “Limiting
– symbol/parameter “I
– symbol parameter “I
Table 10 “Static
– sub-section “Supplies”: removed symbol/parameter “ I
– sub-section “Supplies”: added specification for I
– sub-section “I/Os”: symbol “I
Table 10 “Static
– changed symbol “t
– changed symbol “t
– changed symbol “t
Table 10 “Static
– changed symbol “t
– changed symbol “t
– changed symbol “t
pin IOn”
characteristics”:
characteristics”, sub-section “Port timing”:
characteristics”, sub-section “Reset” and
values”:
application”:
information”: pin naming convention changed from “I/On” to “IOn”
Data sheet status
Product data sheet
Product data sheet
Product data
Product data
Product data
input”: changed symbol “t
ph
ps
PV
PS
PH
W
REC
RESET
Rev. 05 — 12 September 2007
I/O
SS
” to “t
” to “t
” to “t
” to “t
” to “t
” to “t
DD
” to “t
, DC output current on an I/O” changed to “I
, DC supply current” changed to “I
register”:
” to “t
when the I/Os are used to control
w(rst)
su(D)
h(D)
v(Q)
su(D)
h(D)
rec(rst)
register”: changed symbol “t
L
”
” changed to “I
”
”
rst
”
”
”
”
”
voltage”: pin “LEDx” changed to “IOn”
IO7”: within the graphic, changed “I/O1 TO I/O15” to “IO1
DD
W
8-bit I
LI
” to “V
” to “t
”
LED”: pin “LEDx” changed to “IOn”
Change notice
-
-
ECN 853-2308 29160
of 06 Nov 2002
ECN 853-2308 28188
of 13 May 2002
ECN 853-2308 27449
of 12 Dec 2001
stb
w(rst)
2
SS
C-bus and SMBus I/O port with reset
, additional standby current
”
Figure 22 “Definition of RESET
”
DD
pv
SS
, Additional standby current”
” to “t
LEDs”, first paragraph, 3rd
, ground supply current”
v(Q)
O(IOn)
”
, output current on
PCA9557
Supersedes
PCA9557_4
PCA9557_3
PCA9557_2
PCA9557_1
-
© NXP B.V. 2007. All rights reserved.
timing”:
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