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PCA9620 数据表(PDF) 4 Page - NXP Semiconductors

部件名 PCA9620
功能描述  Universal LCD driver for low multiplex rates
PDF  71 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

PCA9620 数据表(HTML) 4 Page - NXP Semiconductors

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PCA9620
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 1 — 9 December 2010
4 of 71
NXP Semiconductors
PCA9620
Universal LCD driver for low multiplex rates
6.2 Pin description
[1]
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 to it. In this case the internal charge pump must be disabled (see Table 8 on page 7).
Table 3.
Pin description
Symbol
Pin
Type
Description
S0 to S59
61 to 80 and
1 to 40
output
LCD segment
BP0 to BP7
41 to 48
output
LCD backplane
VLCD
49
supply/output[1]
LCD supply voltage
VDD2
50
supply
supply voltage 2 (charge pump)
VDD1
51
supply
supply voltage 1 (analog and digital)
VSS
52
supply
ground supply voltage
T1 to T3
53 to 55
input
test pins; must be tied to VSS in applications
CLK
56
input/output
internal oscillator output, external oscillator input
A0, A1
57, 58
input
I2C-bus slave address selection bit
SCL
59
input
I2C-bus serial clock
SDA
60
input/output
I2C-bus serial data



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