PCA9539D,112 NXP Semiconductors, PCA9539D,112 Datasheet - Page 20

• Manufacturer Part Number: PCA9539D,112
• Description: IC I/O EXPANDER I2C 16B 24SOIC
• Manufacturer: NXP Semiconductors

Specifications of PCA9539D,112

• Interface: I²C, SMBus
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935277297112; PCA9539D; PCA9539D

NXP Semiconductors
PCA9539_PCA9539R_5
Product data sheet
Fig 19. Definition of timing on the I
Fig 20. Definition of RESET timing in PCA9539
Fig 21. Definition of RESET timing in PCA9539R
SDA
SCL
RESET
RESET
SCL
SDA
P
IOn
SCL
SDA
IOn
t
BUF
50 %
50 %
S
START
t
HD;STA
t
LOW
START
30 %
t
rec(rst)
t
30 %
rec(rst)
2
t
t
r
HD;DAT
C-bus
16-bit I
2
Rev. 05 — 28 July 2008
C-bus and SMBus low power I/O port with interrupt and reset
t
HIGH
t
f
t
SU;DAT
t
w(rst)
PCA9539; PCA9539R
t
50 %
w(rst)
50 %
Sr
ACK or read cycle
ACK or read cycle
t
t
SU;STA
t
50 %
rst
rst
t
HD;STA
t
50 %
t
rst
rst
50 %
after reset, I/Os unchanged;
device state machine reset
50 %
after reset,
I/Os reconfigured
as inputs
t
SP
t
SU;STO
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© NXP B.V. 2008. All rights reserved.
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