Hitachi AP1 Data Book page 183

4-bit single-chip microcomputer
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- - " " - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LCD-IV
ELECTRICAL CHARACTERISTICS -1 (Vee
=
2.5 to 5.5V, Ta
=
-20 to +75°C)
Item
Symbol
Test Conditions
Value
Unit
Note
min.
max.
Input "Low" Voltage
VIL
-
0.15·Vce
V
Input "High" Voltage
VIH
0.B5·Vee
Vee
V
(11)
Output "Low" Voltage
VOL
IOL - 0.4 mA
-
0.4
V
Output "High" Voltage (1)
VOHl
-IOH = O.OB mA
Vee-0.5
-
V
(1 )
Output "High" Voltage (2)
VOH2
-IOH - 0.01 mA
Vee-0.4
-
V
(2)
Driver Voltage Descending
Vdl
Id = 0.05 mA
(COM)
-
0.5
V
(15)
Driver Voltage Descending
Vd2
Id = 0.01 mA
(SEG)
-
0.5
V
(15)
Dividing Resistor of LCD
Rwell
Power Supply
25
300
kil
Interrupt Input Hold Time
tiNT
20Tinst
-
IJ.s
(13)
Output "High" Current
IOH
VOH = Vee
-
4
IJ.A
(3)
I nput Leakage Current
IlL
Vin = 0 to Vee
-
2
IJ.A
(4), (11)
Pull up MOS Current
-Ip
Vee = 3V
10
100
IJ.A
Vin
Vee, Vee
Rf Oscillation
3V
Supply Current
lee
(fosc = 200 kHz)
-
0.3
mA
(5)
External Clock Operation
(fcp = 200 kHz)
Standby I/O Leakage Current
ILS
HLT=0.5V, Vin=OtoVee
-
1
IJ.A
(6), (11)
Standby Supply Current (1)
leCSl
Vin = Vee, HLT = O.lV,
-
6
IJ.A
(14)
Vee = 2.5 to 3.3V
Standby Supply Current (2)
lecs2
Vin = Vee, HLT = O.lV,
-
50
IJ.A
(7)
Vee = 2.5 to 3.3V
LCD Display Voltage
VLeD
Vee- V
3
2.5
Vee
V
(10)
n - 1 (static)
Frame Frequency of LCD
fF
n = 2 (112 Duty)
1
Hz
Drive
n = 3 (1/3 Duty)
256 x n
)c
Tinst
(12)
n = 4 (1/4 Duty)
External Clock Operation; System Clock
--
- - -
-
- -
-
-
-
-
-
-
-
-
-
- -
- -
- - -
-
-
-
- -
- - - - - - -
. - - - - -
-
-
-
-
-
---
-
-
- -
--
External Clock Frequency
fcp
130
300
kHz
iB), (12)
Ext:.r:~al
Clock Duty
Duty
45
55
%
(B)
External Clock Rise Time
trcp
0
0.2
IJ.s
(B)
-------.--
External Clock Fall Time
tfcp
0
0.2
IJ.s
(B)
Instruction Cycle Time
Tinst
Tinst = 4/fcp
13.3
31.3
IJ.s
(B)
I nternal Clock Operation (Rf Oscillation); System Clock
---------- - - - - - - - - - - - - - - -
----------
Vee =-2:5 to
3.5v
- - - - - - - - - - - - - ---
-
- - ---
Clock Oscillation Frequency
fosc
Rf=270kil±2%
130
270
(9)
~ee= 2.5t05.5V
130
300
kHz
Instruction Cycle Time
Tinst
Tinst=4/fosc
~ ee - 2.5 to 3.5V
14.B
30.8
(9)
Vee= 2.5to5.5V
13.3
30.8
kHz
(NOTE)
All
voltages are with respect to GND.
181

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