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PCF8545 Datasheet(PDF) 6 Page - NXP Semiconductors

Part # PCF8545
Description  Universal LCD driver for multiplex rates up to 1:8
PDF  68 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF8545 Datasheet(HTML) 6 Page - NXP Semiconductors

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NXP Semiconductors
PCF8545
Universal LCD driver for multiplex rates up to 1:8
6.2 Pin description
Input or input/output pins must always be at a defined level (VSS or VDD) unless otherwise
specified.
Pin
Symbol
Type
Description
1 to 11
S9 to S19
output
LCD segment
20 to 31
S20 to S31
output
LCD segment
43
RESET
input
active LOW reset input
44
VSS
supply
ground supply voltage
45
VDD
supply
supply voltage
46
OSCCLK
input/output external clock input/internal oscillator
output
47
VLCD[1]
supply
LCD supply voltage
48 to 56
S0 to S8
output
LCD segment
Pin layout depending on backplane swap configuration[2]
BPS = 0[3]
BPS = 1
12
BP0
S32
13
BP1
S33
14
BP2
S34
15
BP3
S35
16
BP4/S43
S36
17
BP5/S42
S37
18
BP6/S41
S38
19
BP7/S40
S39
32
S32
BP7/S40
33
S33
BP6/S41
34
S34
BP5/S42
35
S35
BP4/S43
36
S36
BP3
37
S37
BP2
38
S38
BP1
39
S39
BP0
output
LCD backplane/LCD segment
Pin layout depending on product and bus type
PCF8545ATT PCF8545BTT
A0
input
I2C-bus target address selection
40
CE
input
SPI-bus chip enable - active LOW
SCL
input
I2C-bus serial clock
41
SCL
input
SPI-bus serial clock
Table 3. Pin description of PCF8545ATT and PCF8545BTT
PCF8545
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
Product data sheet
Rev. 2 — 4 October 2021
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