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
PCA9501
8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM
terminal 1
index area
A2 1
IO0 2
IO1 3
IO2 4
IO3 5
PCA9501BS
15 WC
14 IO7
13 IO6
12 IO5
11 IO4
Transparent top view
Fig 4. Pin configuration for HVQFN20
002aab999
6.2 Pin description
Table 3.
Symbol
A0
A1
A2
A3
A4
A5
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
INT
VSS
WC
SCL
SDA
VDD
Pin description
Pin
SO20, TSSOP20
1
2
3
12
11
9
4
5
6
7
13
14
15
16
8
10
17
18
19
20
Description
HVQFN20
19
address lines (internal pull-up)
20
1
10
9
7
2
quasi-bidirectional I/O pins
3
4
5
11
12
13
14
6
active LOW interrupt output (open-drain)
8[1]
supply ground
15
active LOW write control pin
16
I2C-bus serial clock
17
I2C-bus serial data
18
supply voltage
[1] HVQFN20 package die supply ground is connected to both VSS pin and exposed center pad. VSS pin must
be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board
level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad
on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the
printed-circuit board in the thermal pad region.
PCA9501_4
Product data sheet
Rev. 04 — 10 February 2009
© NXP B.V. 2009. All rights reserved.
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