PCA9500D NXP Semiconductors, PCA9500D Datasheet - Page 6

• Manufacturer Part Number: PCA9500D
• Description: I/O Expanders, Repeaters & Hubs I/O EXPANDER W/2K EE
• Manufacturer: NXP Semiconductors

Specifications of PCA9500D

• Logic Family: PCA
• Number Of Lines (input / Output): 8 / 8
• Operating Supply Voltage: 2.5 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: SOT-109
• Mounting Style: SMD/SMT
• Number Of Input Lines: 8
• Number Of Output Lines: 8
• Lead Free Status / Rohs Status: Details
• Other names: PCA9500D,112

NXP Semiconductors
PCA9500_4
Product data sheet
Fig 7.
Fig 8.
read from
data into
SDA
port
port
write to port
data out from port
I/O Write mode (output)
I/O Read mode (input)
SCL
S
START condition
SDA
slave address (I/O expander)
SCL
1
0
7.3 I/O operations
S
START condition
2
1
slave address (I/O expander)
1
0
3
0
(Refer also to
Each of the PCA9500's eight I/Os can be independently used as an input or output.
Output data is transmitted to the port by the I/O Write mode (see
is transferred from the port to the microcontroller by the Read mode (see
2
1
4
0 A2 A1 A0
3
0
DATA 1
5
4
0 A2 A1 A0 1
6
5
7
R/W
6
8
0
Figure
7
t
9
h(D)
A
acknowledge
from slave
R/W
8
9
5.)
A
acknowledge
from slave
Rev. 04 — 15 April 2009
data to port
DATA 1
DATA 2
data from port
8-bit I
DATA 1
DATA 3
t
v(Q)
t
su(D)
2
C-bus and SMBus I/O port with 2-kbit EEPROM
A
acknowledge
from slave
A
acknowledge
from master
data to port
DATA 1 VALID
DATA 2
data from port
DATA 4
DATA 4
t
v(Q)
Figure
A
acknowledge
from slave
PCA9500
© NXP B.V. 2009. All rights reserved.
DATA 2 VALID
7). Input I/O data
Figure
1
no acknowledge
from master
002aae591
002aae592
P
STOP
condition
8).
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