PCF8578 Ver la hoja de datos (PDF) - NXP Semiconductors.
Número de pieza
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Fabricante
PCF8578 Datasheet PDF : 46 Pages
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NXP Semiconductors
6. Block diagram
PCF8578
LCD row/column driver for dot matrix graphic displays
C39 - C32
R31/C31 - R8/C8
R7 - R0
VDD
V2
V3
V4
V5
VLCD
TEST
ROW/COLUMN(1)
DRIVERS
PCF8578
DISPLAY
MODE
CONTROLLER
OUTPUT
CONTROLLER
Y DECODER
AND SENSING
AMPLIFIERS
32 × 40-BIT
DISPLAY RAM
DISPLAY
DECODER
X DECODER
POWER-ON
RESET
SUBADDRESS
COUNTER
RAM DATA POINTER
Y
X
TIMING
GENERATOR
SYNC
CLK
SCL
SDA
INPUT
FILTERS
I2C-BUS
CONTROLLER
COMMAND
DECODER
n.c.
n.c.
SA0
(1) Operates at LCD voltage levels, all other blocks operate at logic levels.
Fig 1. Block diagram
OSCILLATOR
msa842
OSC
Rext(OSC)
VSS
PCF8578_6
Product data sheet
Rev. 06 — 5 May 2009
© NXP B.V. 2009. All rights reserved.
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