Document
■OUTLINE DIMENSION:
BC204A
■FEATURES
LCD MODE
STN/Y-G/TRANSFLECTIVE/POSITIVE
VIEWING
6 O’CLOCK
DRIVE MODE
1/16 DUTY 1/5 BIAS
BACKLIGHT
Y-G/BOTTOM LIGHT
CONTROLER
ST7066U OR COMPATIBLE IC
OPERATION TEMP.
-10℃~60℃
STORAGE TEMP.
-20℃~70℃
OTHER
■ELECTRICAL CHARACTERISTICS
CHARACTERISTICS LOGIC VOLTAGE
SYMBOL VDD
MIN. 4.8
LOGIC CURRENT
IDD --
-10℃
--
LCD BEST CONTRAST
VDD-V0
+25℃
--
+60℃
--
BACKLIGHT VOLTAGE VBL 4.8
BACKLIGHT CURRENT
IBL
--
INPUT HIGH VOLTAGE
VIH 0.7VDD
INPUT LOW VOLTAGE VIL -0.3
TA=25℃
TYP.
MAX.
UNIT
5.0 5.2
V
1.5 3
mA
-- --
4.2 --
V
-- --
5.0 5.2
V
120 --
mA
-- VDD
V
-- 0.6
V
■POWER SUPPLY AND LCD CONTRAST
VDD
VDD
RHEOSTAT: 20~50K
VSS
+5.0V 0V
V0
VSS LED+ LED-
■LCM INTERFACE
NO. SYMBOL LEVEL
DESCRIPTION
1
VSS
0V Logic ground.
2
VDD
+5.0V Logic voltage input.
3 4
5 6 7~14 15
V0 RS
R/W E
DB0~DB7 LED+
-H/L
H/L H/L H/L +5.0V
LCD module display the best contrast adjusting input.
Select registers. 0: Instruction register (for write) Busy flag:address counter
(for read) 1: Data register (for write and read) Select read or write. 0: Write 1: Read
Enable signal.
8-BIT data bus, Used for data transfer and receive between the MPU and the ST7066U. DB7 can be used as a busy flag.
Power supply for backlight.
16 LED- 0V Ground for backlight.
B4
WWW.BOKLCD.COM
.