UPD16661A View Datasheet(PDF) - NEC => Renesas Technology
Part Name
Description
Manufacturer
UPD16661A Datasheet PDF : 36 Pages
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µPD16661A
PIN NAMES
Classification
CPU interface
3.3 V
Control signals
3.3 V
Pin Name Note
D0 to D15
A0 to A16
/CS
/OE
/WE
/UBE
RDY
PL0
PL1
PL2
DIR
MS
BMODE
GMODE
5.0 V
Liquid-crystal drive
Power supplies
/REFRH
TEST
/RESET
/DOFF
OSC1
OSC2
STB
/FRM
L1
L2
/DOUT
Y1 to Y160
GND
VCC1
VCC2
V0
V1
V2
I/O Pad No.
Function
I/O
Data bus : 16 bits
I
Address bus : 17 bits
I
Chip select
I
Read signal
I
Write signal
I
Upper byte enable
O
Ready signal to CPU (Ready state at "H")
I
Specifies the LSI placement positions (No. 0 to 7)
I
Specifies the LSI placement positions (No. 0 to 7)
I
Specifies the LSI placement positions (No. 0 to 7)
I
Specifies the liquid-crystal panel placement direction
I
Master/slave selection pin (Master mode at "H")
I
Data bus bit selection pin ("H" = 8 bits, "L" = 16 bits)
I
Gray scale data weight reverse switching
(When data = [1,1], "L" = black, "H" = white)
I/O
Self-diagnosis reset pin (wired-OR connection)
I
Test pin ("H" = test mode, on-chip pull-down resistor)
I
Reset signal
I
Display OFF input signal
−
Oscillator externally-attached resistor pin
−
Oscillator externally-attached resistor pin
I/O
Column drive signal (MS pin "H" = output, MS pin "L" = input)
I/O
Frame signal (MS pin "H" = output, MS pin "L" = input)
I/O
Row driver drive level selection signal (1st line)
I/O
Row driver drive level selection signal (2nd line)
O
Display OFF output signal
O
Liquid-crystal drive output
−
Ground (two pins for VCC1 system , three pins for VCC2 system)
−
5-V power supply
−
3.3-V power supply
−
Liquid-crystal drive analog power supply
−
Liquid-crystal drive analog power supply
−
Liquid-crystal drive analog power supply
Note 3.3-V pin : D0 to D15, A0 to A16, /CS, /OE, /WE, /UBE, RDY, BMODE, GMODE, PL0, PL1, PL2, DIR, OSC1,
OSC2, /RESET, /DOFF, TEST, MS
5-V pin : STB, /FRM, L1, L2, /DOUT
5 Remark /xxx indicates active low signal.
2
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