PCF8566 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
'PCF8566' PDF : 48 Pages View PDF
NXP Semiconductors
5. Block diagram
PCF8566
Universal LCD driver for low multiplex rates
VDD
5
R
BP0 BP2 BP1 BP3
13 14 15 16
BACKPLANE
OUTPUTS
LCD
R
VOLTAGE
SELECTOR
VLCD 12
CLK 4
3
SYNC
R LCD BIAS
GENERATOR
TIMING
BLINKER
6
OSC
OSCILLATOR
VSS 11
SCL 2
1
SDA
INPUT
FILTERS
POWER-
ON
RESET
I2C-BUS
CONTROLLER
10
PCF8566
DISPLAY
CONTROLLER
COMMAND
DECODER
SA0
Fig 1. Block diagram of PCF8566
S0 to S23
17 to 40
DISPLAY SEGMENT OUTPUTS
DISPLAY LATCH
SHIFT REGISTER
INPUT
BANK
SELECTOR
DISPLAY
RAM
24 × 4 BITS
OUTPUT
BANK
SELECTOR
DATA
POINTER
SUB-
ADDRESS
COUNTER
78 9
A0 A1 A2
mgg383
PCF8566_7
Product data sheet
Rev. 07 — 25 February 2009
© NXP B.V. 2009. All rights reserved.
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