PCA9500 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
PCA9500 Datasheet PDF : 26 Pages
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NXP Semiconductors
5. Block diagram
PCA9500
8-bit I2C-bus and SMBus I/O port with 2-kbit EEPROM
PCA9500
300 kΩ
A0
A1
A2
SCL
SDA
INPUT
FILTER
IO0
8-bit
IO1
INPUT/
IO2
OUTPUT
IO3
write pulse PORTS
IO4
IO5
read pulse
I2C-BUS/SMBus
IO6
IO7
CONTROL
VDD
POWER-ON
VSS
RESET
WC
Fig 1. Block diagram of PCA9500
6. Pinning information
6.1 Pinning
EEPROM
256 × 8
002aae585
A0 1
A1 2
A2 3
IO0 4
IO1 5
IO2 6
IO3 7
VSS 8
PCA9500D
16 VDD
15 SDA
14 SCL
13 WC
12 IO7
11 IO6
10 IO5
9 IO4
002aae582
Fig 2. Pin configuration for SO16
A0 1
A1 2
A2 3
IO0 4
IO1 5
IO2 6
IO3 7
VSS 8
PCA9500PW
16 VDD
15 SDA
14 SCL
13 WC
12 IO7
11 IO6
10 IO5
9 IO4
002aae583
Fig 3. Pin configuration for TSSOP16
PCA9500_4
Product data sheet
Rev. 04 — 15 April 2009
© NXP B.V. 2009. All rights reserved.
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