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PDF PCF8576 Data sheet ( Hoja de datos )
| Número de pieza | PCF8576 | |
| Descripción | Universal LCD driver for low multiplex rates | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
DATA SHEET
PCF8576
Universal LCD driver for low
multiplex rates
Product specification
Supersedes data of 1997 Nov 18
File under Integrated Circuits, IC12
1998 Feb 06
1 page  
Philips Semiconductors
Universal LCD driver for low multiplex
rates
5 PINNING
SYMBOL
SDA
SCL
SYNC
CLK
VDD
OSC
A0 to A2
SA0
VSS
VLCD
BP0, BP2, BP1 and BP3
S0 to S39
PIN
1
2
3
4
5
6
7 to 9
10
11
12
13 to 16
17 to 56
DESCRIPTION
I2C-bus serial data input/output
I2C-bus serial clock input
cascade synchronization input/output
external clock input/output
supply voltage
oscillator input
I2C-bus subaddress inputs
I2C-bus slave address input; bit 0
logic ground
LCD supply voltage
LCD backplane outputs
LCD segment outputs
Product specification
PCF8576
1998 Feb 06
5
5 Page 
Philips Semiconductors
Universal LCD driver for low multiplex
rates
Product specification
PCF8576
BP0
BP1
Sn
Sn 1
state 1
state 2
VDD
VDD Vop /3
VDD 2Vop /3
VLCD
VDD
VDD Vop /3
VDD 2Vop /3
VLCD
VDD
VDD Vop /3
VDD 2Vop /3
VLCD
VDD
VDD Vop /3
VDD 2Vop /3
VLCD
Vop
2Vop /3
Vop /3
0
Vop /3
2Vop /3
Vop
Vop
2Vop /3
Vop /3
0
Vop /3
2Vop /3
Vop
T frame
LCD segments
state 1
state 2
(a) waveforms at driver
(b) resultant waveforms
at LCD segment
MBE541
Vstate1(t) = VSn(t) – VBP0(t)
Von(rms) = 0.745Vop
Vstate2(t) = VSn(t) – VBP1(t)
Voff(rms) = 0.333Vop
Fig.6 Waveforms for the 1 : 2 multiplex drive mode with 1⁄3bias (Vop = VDD − VLCD).
1998 Feb 06
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet PCF8576.PDF ] | |
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