PCA8537 Ver la hoja de datos (PDF) - NXP Semiconductors.
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PCA8537 Datasheet PDF : 82 Pages
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NXP Semiconductors
PCA8537
Automotive LCD driver for multiplex rates up to 1:8
7.2 Pin description
Table 4. Pin description of PCA8537AH and PCA8537BH
Input or input/output pins must always be at a defined level (VSS or VDD) unless otherwise specified.
Pin
Symbol
Type
Description
PCA8537AH PCA8537BH
1 to 32
S31 to S0
output
LCD segments
33
RESET
input
active low reset input
34
SDA
input/output I2C-bus serial data
CE
input
SPI-bus chip enable - active LOW
35
SCL
input
I2C-bus serial clock
SCL
input
SPI-bus serial clock
36
A0
input
I2C-bus slave address selection
SDIO
input/output SPI-bus serial data
37, 38,
40
T1 to T3
input
test pins; must be tied to VSS in
applications
39
CLK
input/output internal oscillator output, external
oscillator input
41
VSS
supply
ground supply
42
VDD1
supply
supply voltage 1
43
VDD2
supply
supply voltage 2
44
VLCD[1]
supply
LCD supply[2]
45 to 50
BP0 to BP5
output
LCD backplanes
51
S45/BP6
output
LCD segments for 1:6 multiplex drive
mode;
52
S44/BP7
output
LCD backplanes for 1:8 multiplex drive
mode
53 to 64
S43 to S32
output
LCD segments
[1] VLCD must be equal to or greater than VDD2.
[2] When the internal VLCD generation is used, this pin drives the VLCD voltage. In this case pin VLCD is an
output. When the external supply is requested, then pin VLCD is an input and VLCD can be supplied on it. In
this case, the internal charge pump must be disabled (see Table 9).
PCA8537
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 7 April 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
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