HD44780U Hitachi Semiconductor (acquired by Renesas), HD44780U Datasheet - Page 4

• Manufacturer Part Number: HD44780U
• Description: Dot Matrix Liquid Crystal Display Controller/driver
• Manufacturer: Hitachi Semiconductor (acquired by Renesas)

HD44780U
LCD-II Family Comparison
Item
Power supply voltage
Liquid crystal drive
voltage VLCD
Maximum display digits
per chip
Display duty cycle
CGROM
CGRAM
DDRAM
Segment signals
Common signals
Liquid crystal drive waveform
Oscillator
Instructions
CPU bus timing
Package
170
1/5 bias
Clock source
R
frequency (frame
frequency)
R
1/4 bias
f
f
oscillation
resistance
HD44780S
16 digits (8 digits
7,200 bits
(160 character fonts for 5
7 dot and 32 character fonts
for 5
40
16
A
ceramic filter, or external
clock
270 kHz ±30%
(59 to 110 Hz for 1/8 and
1/16 duty cycles; 43 to 80
Hz for 1/11 duty cycle)
91 k
Fully compatible within the HD44780S
FP-80
FP-80A
5 V ±10%
3.0 to 11.0V
4.6 to 11.0V
1/8, 1/11, and 1/16
64 bytes
80 bytes
External resistor, external
1 MHz
±2%
10 dot)
2 lines)
HD44780U
2.7 to 5.5 V
3.0 to 11.0V
3.0 to 11.0V
16 digits (8 digits
1/8, 1/11, and 1/16
9,920 bits
(208 character fonts for 5
8 dot and 32 character fonts
for 5
64 bytes
80 bytes
40
16
A
External resistor or external
clock
270 kHz ±30%
(59 to 110 Hz for 1/8
and1/16 duty cycles; 43 to
80 Hz for 1/11 duty cycle)
91 k
75 k
1 MHz (when V
2 MHz (when V
FP-80B
TFP-80F
±2% (when V
±2% (when V
10 dot)
CC
CC
= 3V)
= 5V)
2 lines)
CC
CC
= 5V)
= 3V)