PCA9620 Datasheet, PDF (4/71 Pages) NXP Semiconductors – Universal LCD driver for low multiplex rates

NXP Semiconductors
PCA9620
Universal LCD driver for low multiplex rates
6.2 Pin description
Table 3. Pin description
Symbol
Pin
Type
Description
S0 to S59
61 to 80 and output
1 to 40
LCD segment
BP0 to BP7 41 to 48
output
LCD backplane
V_LCD
V_DD2
V_DD1
V_SS
T1 to T3
CLK
49
50
51
52
53 to 55
56
supply/output^[1] LCD supply voltage
supply
supply voltage 2 (charge pump)
supply
supply voltage 1 (analog and digital)
supply
ground supply voltage
input
input/output
test pins; must be tied to V_SS in applications
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
[1] When the internal V_LCD generation is used, this pin drives the V_LCD voltage. In this case pin V_LCD
is an output. When the external supply is requested then pin V_LCD is an input and V_LCD can be
supplied to it. In this case the internal charge pump must be disabled (see Table 8 on page 7).
PCA9620
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 9 December 2010
© NXP B.V. 2010. All rights reserved.
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