PCA9501D 查看數據表（PDF） - NXP Semiconductors.
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PCA9501D
NXP Semiconductors.
PCA9501D Datasheet PDF : 28 Pages
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NXP Semiconductors
5. Block diagram
PCA9501
8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM
PCA9501
A0
A1
A2
A3
A4
A5
SCL
SDA
INPUT
FILTER
300 kΩ
8-bit
write pulse
read pulse
INPUT/
OUTPUT
PORTS
I2C-BUS/SMBus
CONTROL
LP
FILTER
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
VDD
INT
VDD
VSS
POWER-ON
RESET
WC
EEPROM
256 × 8
Fig 1. Block diagram of PCA9501
6. Pinning information
6.1 Pinning
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A0 1
A1 2
A2 3
IO0 4
IO1 5
IO2 6
IO3 7
INT 8
A5 9
VSS 10
PCA9501D
20 VDD
19 SDA
18 SCL
17 WC
16 IO7
15 IO6
14 IO5
13 IO4
12 A3
11 A4
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Fig 2. Pin configuration for SO20
A0 1
A1 2
A2 3
IO0 4
IO1 5
IO2 6
IO3 7
INT 8
A5 9
VSS 10
PCA9501PW
20 VDD
19 SDA
18 SCL
17 WC
16 IO7
15 IO6
14 IO5
13 IO4
12 A3
11 A4
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Fig 3. Pin configuration for TSSOP20
PCA9501_4
Product data sheet
Rev. 04 — 10 February 2009
© NXP B.V. 2009. All rights reserved.
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