PCF8531U2D NXP [NXP Semiconductors], PCF8531U2D Datasheet - Page 3

• Manufacturer Part Number: PCF8531U2D
• Description: 34 x 128 pixel matrix driver Single-chip LCD controller and driver
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
5. Block diagram
PCF8531
Product data sheet
Fig 1.
V
LCDSENSE
V
LCDOUT
SDACK
V
Block diagram of PCF8531
LCDIN
V
V
SDA
SCL
SS1
SS2
T1
T2
T3
T4
All information provided in this document is subject to legal disclaimers.
GENERATOR
GENERATOR
VOLTAGE
FILTERS
INPUT
V
BIAS
Rev. 6 — 16 May 2011
LCD
R0 to R33
DRIVERS
ROW
PCF8531
34
CONTROL
I
2
DISPLAY DATA RAM
C-BUS
SA0
DATA LATCHES
MATRIX DATA
C0 to C127
LATCHES
COLUMN
DRIVERS
MATRIX
RAM
128
COMMAND
DECODER
V
DD1
POWER-ON RESET
34 x 128 pixel matrix driver
INTERNAL
RESET
V
OSCILLATOR
GENERATOR
DD2
COUNTER
COUNTER
ADDRESS
ADDRESS
DISPLAY
TIMING
PCF8531
V
© NXP B.V. 2011. All rights reserved.
DD3
mgs465
ENR
RES
OSC
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