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HD404318 Datasheet, PDF (61/68 Pages) Hitachi Semiconductor – 4-bit HMCS400-series microcomputer
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HD404318 Series
I/O Characteristics for High-Voltage Pins (VCC = 4.0 to 5.5 V, GND = 0 V, Vdisp = VCC – 40 V to VCC,
Ta = –20 to +75°C, unless otherwise specified)
Item
Symbol Pins
Min
Typ Max
Unit Test Condition
Note
Input high VIH
voltage
Input low
VIL
voltage
Output high VOH
voltage
D0–D8, R1,
R2, R8, RA1
D0–D8, R1,
R2, R8, RA1
D0–D8, R1,
R2, R8, BUZZ
0.7VCC —
VCC – 40 —
VCC – 3.0 —
VCC + 0.3 V
0.3VCC V
—
V –IOH = 15 mA
Output low VOL
voltage
VCC – 2.0 —
—
V –IOH = 10 mA
VCC – 1.0 —
—
V –IOH = 4 mA
D0–D8, R1,
—
—
VCC – 37 V Vdisp = VCC – 40 V
1
R2, R8, BUZZ
—
— VCC – 37 V 150 kΩ at VCC – 40 V 2
I/O leakage |IIL|
current
D0–D8, R1, R2, —
R8, RA1, BUZZ
— 20
µA Vin = VCC – 40 V to VCC 3
Pull-down IPD
MOS current
D0–D8, R1,
200
R2, R8, BUZZ
600 1000
µA Vdisp = VCC – 35 V,
1
Vin = VCC
Notes: 1. Applies to pins with pull-down MOS as selected by the mask option .
2. Applies to pins without pull-down MOS as selected by the mask option.
3. Excludes output buffer current.
A/D Converter Characteristics (VCC = 4.0 to 5.5 V, GND = 0 V, Vdisp = VCC – 40 V to VCC, Ta = –20 to
+75°C, unless otherwise specified)
Item
Symbol Pins Min
Typ Max
Unit Test Condition Note
Analog supply voltage AVCC
Analog input voltage AVin
Current flowing
I AD
between AVCC and AVSS
Analog input
CA in
capacitance
AVCC
VCC – 0.3 VCC
AN0–AN7 AVSS
—
—
—
VCC + 0.3 V
AVCC
V
200
µA
AN0–AN7 —
— 30
pF
1
VCC = AVCC = 5.0 V
Resolution
8
88
Bit
Number of input
channels
0
—8
Chan
nel
Absolute accuracy
—
— ±2.0
LSB
Conversion time
34
— 67
t cyc
Input impedance
AN0–AN7 1
——
MΩ
Note: 1. Connect this to VCC if the A/D converter is not used.
59
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