PCA9500 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2017. All rights reserved.
Product data sheet Rev. 4.1 — 5 May 2017 6 of 29
NXP Semiconductors
PCA9500
8-bit I
2
C-bus and SMBus I/O port with 2-kbit EEPROM
[1] HVQFN16 package 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
printed-circuit board in the thermal pad region.
V
SS
86
[1]
supply ground
WC
13 11 active LOW write control pin
SCL 14 12 I
2
C-bus serial clock
SDA 15 13 I
2
C-bus serial data
V
DD
16 14 supply voltage
Table 3. Pin description
…continued
Symbol Pin Description
SO16, TSSOP16 HVQFN16
