Datasheet

PCA9501_4 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 04 — 10 February 2009 25 of 28
NXP Semiconductors
PCA9501
8-bit I
2
C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM
16. Revision history
Table 11. Revision history
Document ID Release date Data sheet status Change notice Supersedes
PCA9501_4 20090210 Product data sheet - PCA9501_3
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.
• Section 1 “General description”, 5
th
paragraph, 2
nd
sentence changed from “The fixed GPIO
address starts with ‘1’ and the fixed EEPROM I
2
C address starts with ‘0’, ...” to “The fixed GPIO
address starts with ‘0’ and the fixed EEPROM I
2
C-bus address starts with ‘1’, ...”
• Table 3 “Pin description”:
– pin “WC” corrected to “
WC”
– added
Table note 1 and its reference at HVQFN20 pin 8
– changed naming convention for pins I/On to “IOn”
• Section 7.1 “Device addressing”: added Remark and bulleted list (4 items)
• Figure 7 “I/O Write mode (output)”: changed symbol “t
pv
” to “t
v(Q)
”
• Figure 8 “I/O Read mode (input)”:
– changed symbol “t
ph
” to “t
h(D)
”
– changed symbol “t
ps
” to “t
su(D)
”
– changed symbol “t
iv
” to “t
v(INT)
”
– changed symbol “t
ir
” to “t
rst(INT)
”
• Section 7.3.2 “Interrupt”, 2
nd
paragraph: changed symbol “t
iv
” to “t
v(INT)
”
• Figure 11 “Interrupt generated by a change of input to IO5”:
– changed symbol “t
iv
” to “t
v(INT)
”
– changed symbol “t
ir
” to “t
rst(INT)
”
• Table 4 “Limiting values”:
– changed symbol “V
CC
” to “V
DD
”
– changed parameter for I
SS
from “supply current” to “ground supply current”
– changed symbol “P
O
” to “P/out”
• Table 5 “Static characteristics”:
– sub-section “Input SCL; input/output SDA”: changed symbol “I
L
” to “I
LI
”
– sub-section “Address inputs A0 to A5;
WC input”: changed symbol “I
L
” to “I
LI
”
– added reference to
Table note 1 at I
OL
in sub-section “I/O expander port”
• Table 6 “Dynamic characteristics”:
– sub-section “I
2
C-bus timing”: changed symbol/parameter from “t
SW
, tolerable spike width on
bus” to “t
SP
, pulse width of spikes that must be suppressed by the input filter”
– sub-section “Port timing”: changed symbol “t
pv
” to “t
v(Q)
”
– sub-section “Port timing”: changed symbol “t
ph
” to “t
h(D)
”
– sub-section “Port timing”: changed symbol “t
ps
” to “t
su(D)
”
– sub-section “Interrupt timing”: changed symbol “t
iv
” to “t
v(INT)
”
– sub-section “Interrupt timing”: changed symbol “t
ir
” to “t
rst(INT)
”
– sub-section “Power-up timing”: changed symbol “t
PUR
” to “t
pu(R)
”
– sub-section “Power-up timing”: changed symbol “t
PUW
” to “t
pu(W)
”
– sub-section “Write cycle limits”: changed symbol “t
WR
” to “T
cy(W)
”