Datasheet

PCA8574_PCA8574A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 3 — 3 June 2013 3 of 32
NXP Semiconductors
PCA8574; PCA8574A
Remote 8-bit I/O expander for I
2
C-bus with interrupt
4.1 Ordering options
5. Block diagram
Table 2. Ordering options
Type number Orderable
part number
Package Packing method Minimum
order
quantity
Temperature range
PCA8574D PCA8574D,512 SO16 Standard marking * tube dry pack 1920 T
amb
= 40 C to +85 C
PCA8574D,518 SO16 Reel 13” Q1/T1
*standard mark SMD dry pack
1000 T
amb
= 40 C to +85 C
PCA8574AD PCA8574AD,512 SO16 Standard marking * tube dry pack 1920 T
amb
= 40 C to +85 C
PCA8574AD,518 SO16 Reel 13” Q1/T1
*standard mark SMD dry pack
1000 T
amb
= 40 C to +85 C
PCA8574PW PCA8574PW,112 TSSOP16 Standard marking
* IC’s tube - DSC bulk pack
2400 T
amb
= 40 C to +85 C
PCA8574PW,118 TSSOP16 Reel 13” Q1/T1
*standard mark SMD
2500 T
amb
= 40 C to +85 C
PCA8574APW PCA8574APW,112 TSSOP16 Standard marking
* IC’s tube - DSC bulk pack
2400 T
amb
= 40 C to +85 C
PCA8574APW,118 TSSOP16 Reel 13” Q1/T1
*standard mark SMD
2500 T
amb
= 40 C to +85 C
PCA8574TS PCA8574TS,112 SSOP20 Standard marking
* IC’s tube - DSC bulk pack
1350 T
amb
= 40 C to +85 C
PCA8574TS,118 SSOP20 Reel 13” Q1/T1
*standard mark SMD
2500 T
amb
= 40 C to +85 C
PCA8574ATS PCA8574ATS,112 SSOP20 Standard marking
* IC’s tube - DSC bulk pack
1350 T
amb
= 40 C to +85 C
PCA8574ATS,118 SSOP20 Reel 13” Q1/T1
*standard mark SMD
2500 T
amb
= 40 C to +85 C
Fig 1. Block diagram
002aac677
INT
I
2
C-BUS
CONTROL
PCA8574
PCA8574A
LP FILTER
A0
A1
A2
INPUT
FILTER
SHIFT
REGISTER
SDA
SCL
8 BITS
write pulse
read pulse
POWER-ON
RESET
V
DD
V
SS
I/O
PORT
P0 to P7
INTERRUPT
LOGIC