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NXP Semiconductors
PCA9553
4-bit I 2 C-bus LED driver with programmable blink rates
6. Pinning information
6.1 Pinning
LED0
1
8
V DD
LED0
1
8
V DD
PCA9553DP/01
LED1
LED2
2 PCA9553D/01 7
3 PCA9553D/02 6
SDA
SCL
LED1
LED2
2
3
7 SDA
PCA9553DP/02 6 SCL
V SS
4
5
LED3
V SS
4
5
LED3
002aad678
002aad679
Fig 2.
Pin con?guration for SO8
terminal 1
index area
Fig 3.
PCA9553TK
PCA9553TK/02
Pin con?guration for TSSOP8
LED0
LED1
LED2
VSS
1
2
3
4
8
7
6
5
V DD
SDA
SCL
LED3
002aad680
Transparent top view
Fig 4.
Pin con?guration for HVSON8
6.2 Pin description
Table 3.
Pin description
Symbol
LED0
LED1
LED2
V SS
LED3
SCL
SDA
V DD
Pin
1
2
3
4 [1]
5
6
7
8
Description
LED driver 0
LED driver 1
LED driver 2
supply ground
LED driver 3
serial clock line
serial data line
supply voltage
PCA9553_6
[1]
HVSON8 package die supply ground is connected to both V SS pin and exposed center pad. V SS 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
PCB in the thermal pad region.
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 06 — 29 December 2008
4 of 26
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PCA9553DP/02 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C-bus LED driver with programmable blink rates
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