PCA9557
NXP Semiconductors
8-bit I2C-bus and SMBus I/O port with reset
3. Ordering information
Table 1.
Ordering information
Type number Topside
marking
Package
Name
Description
Version
PCA9557BS
9557
HVQFN16
plastic thermal enhanced very thin quad flat package; no leads;
SOT629-1
16 terminals; body 4 4 0.85 mm
PCA9557D
PCA9557D
SO16
plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
SOT403-1
PCA9557PW PCA9557
TSSOP16
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
3.1 Ordering options
Table 2.
Ordering options
Type number
Orderable
Package
Packing method
Minimum Temperature range
part number
order
quantity
PCA9557BS
PCA9557D
PCA9557BS,118
PCA9557D,112
PCA9557D,118
PCA9557PW,112
PCA9557PW,118
HVQFN16
SO16
Reel 13” Q1/T1
*Standard mark SMD
6000
1000
2500
2400
2500
T
amb = 40 C to +85 C
Tamb = 40 C to +85 C
amb = 40 C to +85 C
Tamb = 40 C to +85 C
Standard marking
* IC’s tube - DSC bulk pack
SO16
Reel 13” Q1/T1
*Standard mark SMD
T
PCA9557PW
TSSOP16
TSSOP16
Standard marking
* IC’s tube - DSC bulk pack
Reel 13” Q1/T1
Tamb = 40 C to +85 C
*Standard mark SMD
4. Block diagram
PCA9557
A0
A1
A2
IO0
IO1
IO2
8-bit
SCL
SDA
INPUT
2
IO3
IO4
IO5
IO6
IO7
INPUT/
OUTPUT
PORTS
I C-BUS/SMBus
CONTROL
FILTER
write pulse
read pulse
V
DD
POWER-ON
RESET
V
SS
RESET
002aad275
Fig 1. Block diagram of PCA9557
PCA9557
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 7 — 10 December 2013
2 of 30
NXP [ NXP ]
