PCA9538PW,112 NXP Semiconductors, PCA9538PW,112 Datasheet - Page 16

• Manufacturer Part Number: PCA9538PW,112
• Description: IC I/O EXPANDER I2C 8B 16TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCA9538PW,112

• Interface: I²C, SMBus
• Number Of I /o: 8
• 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: 16-TSSOP
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935277419112; PCA9538PW; PCA9538PW

NXP Semiconductors
PCA9538_5
Product data sheet
Fig 14. Definition of timing
Fig 15. I
Fig 16. Definition of RESET timing
SDA
SCL
Rise and fall times refer to V
2
RESET
C-bus timing diagram
P
SCL
SDA
IOn
protocol
t
SDA
SCL
BUF
50 %
S
t
SU;STA
t
BUF
condition
t
START
HD;STA
t
LOW
(S)
START
t
HD;STA
t
30 %
rec(rst)
IL
and V
t
LOW
t
r
t
t
r
HD;DAT
MSB
bit 7
(A7)
IH
8-bit I
t
.
HIGH
t
2
SU;DAT
Rev. 05 — 28 May 2009
t
C-bus and SMBus low power I/O port with interrupt and reset
f
t
1 / f
HIGH
bit 6
(A6)
SCL
t
t
HD;DAT
f
t
SU;DAT
bit 1
(D1)
t
VD;DAT
t
w(rst)
50 %
Sr
(D0)
bit 0
ACK or read cycle
t
SU;STA
t
t
VD;ACK
HD;STA
t
t
rst
rst
acknowledge
50 %
(A)
50 %
t
SU;STO
002aab285
after reset,
I/Os reconfigured
as inputs
t
SP
condition
t
SU;STO
STOP
PCA9538
002aad732
(P)
© NXP B.V. 2009. All rights reserved.
002aaa986
P
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