PD17012GF-055_15 Datasheet, PDF (31/84 Pages) Renesas Technology Corp – SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR CAR-MOUNTED FM/MW/LW RADIO

µPD17012GF-055
4. DATA OUTPUT TO LCD CONTROLLER/DRIVER (µPD16431A)
The µPD17012GF-055 uses the µPD16431A for LCD display and key sensing.
The µPD17012GF-055 transfers initialization data to the µPD16431A about 480 to 500 ms after the LCDPWR pin
(pin 48) changes from low level to high level.
The pin configurations of the µPD17012GF-055 and the µPD16431A are shown below.
Figure 4-1. µPD16431A Pin Configuration
SCL 9
Clock
7 SCK
SO 10
Data
8 DATA
µ PD17012GF-055
SI 11
Data
KREQ 14
Key request
µ PD16431A
6 KEYREQ
LCDSTB 43
Strobe
9 STB
LCDPWR 48
LCD power
11 OE
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