
HD64645/64646
42
Electrical Characteristics
DC Characteristics (V
CC
= 5.0V
±
10%, GND = 0V, T
a
= –20
°
C to +75
°
C, unless otherwise noted)
Item
Symbol
Min
Typ
Max
Unit
Test Condition
Input high
voltage
RES
, MODE,
SK0, SK1
DCLK, ON/
OFF
VIH
V
CC
– 0.5
V
CC
+ 0.3 V
2.2
V
CC
+ 0.3 V
V
CC
+ 0.3 V
0.8
All others
2.0
Input low
voltage
All others
VIL
–0.3
V
Output high
voltage
TTL interface*
1
VOH
2.4
V
I
OH
= –400
μ
A
I
OH
= –400
μ
A
I
OL
= 1.6 mA
I
OL
= 400
μ
A
CMOS interface*
1
V
CC
– 0.8
V
Output low
voltage
TTL interface
VOL
0.4
V
CMOS interface
0.8
V
Input leakage
current
All inputs except
DB0–DB7
I
IL
–2.5
+2.5
μ
A
Three state
(off-state)
leakage current
DB0–DB7
I
TSL
–10
+10
μ
A
Current
dissipation*
2
Notes: 1. TTL Interface; MA0–MA15, RA0–RA4, DISPTMG, CUDISP, DB0–DB7, MCLK
C-MOS Interface; LU0–LU3, LD0–LD3, CL1, CL2, M, FLM
2. Input/output current is excluded. When input is at the intermediate level with CMOS, excessive
current flows through the input circuit to power supply. Input level must be fixed at high or low to
avoid this condition.
3. If the capacitive loads of LU0–LU3 and LD0–LD3 exceed the rating, noise over 0.8 V may be
produced on CUDISP, DISPTMG, MCLK, FLM and M. In case the loads of LU0–LU3 and LD0–
LD3 are larger than the ratings, supply signals to the LCD module through buffers.
I
CC
10
mA