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| PCA9553 Datasheet, PDF (4/26 Pages) NXP Semiconductors – 4-bit I2C LED driver with programmable blink rates | |||
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NXP Semiconductors
6. Pinning information
6.1 Pinning
PCA9553
4-bit I2C-bus LED driver with programmable blink rates
LED0 1
8 VDD
LED1 2 PCA9553D/01 7 SDA
LED2 3 PCA9553D/02 6 SCL
VSS 4
5 LED3
002aad678
Fig 2. Pin conï¬guration for SO8
LED0 1
8 VDD
LED1 2 PCA9553DP/01 7 SDA
LED2 3 PCA9553DP/02 6 SCL
VSS 4
5 LED3
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Fig 3. Pin conï¬guration for TSSOP8
terminal 1
index area
PCA9553TK
PCA9553TK/02
LED0 1
LED1 2
LED2 3
VSS 4
8 VDD
7 SDA
6 SCL
5 LED3
002aad680
Transparent top view
Fig 4. Pin conï¬guration for HVSON8
6.2 Pin description
Table 3.
Symbol
LED0
LED1
LED2
VSS
LED3
SCL
SDA
VDD
Pin description
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
[1] HVSON8 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
PCB in the thermal pad region.
PCA9553_6
Product data sheet
Rev. 06 â 29 December 2008
© NXP B.V. 2008. All rights reserved.
4 of 26
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