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HD404618 Datasheet, PDF (79/89 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer
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HD404618 Series
I/O Characteristics for High-Current Pins (HD404612, HD404614, HD404616, HD404618: VCC = 2.7
V to 6.0 V; HD4074618: VCC = 3.0 V to 5.5 V, GND = 0 V, Ta = –20 to +75°C, unless otherwise
specified)
Item
Symbol Pin(s) Min
Typ
Input high
VIH
voltage
D0–D9
0.7VCC —
Input low
VIL
voltage
D0–D9
–0.3
—
Output high VOH
voltage
D0–D9
VCC – 1.0 —
Pull-up MOS –IPU
D0–D9
5
40
current
Output low
VOL
D0–D9
—
—
voltage
—
—
I/O leakage |IIL|
D0–D9
—
—
current
Note: 1. Output buffer current is excluded.
Max
Test Conditions Unit Notes
VCC + 0.3
V
0.3VCC
V
–IOH = 0.5 mA
V
90
VCC = 3 V,
µA
Vin = 0 V
2.0
IOL = 15 mA
V
VCC = 4.5 V to 6 V
0.4
IOL = 0.4 mA
V
1
Vin = 0 to VCC
µA 1
LCD Circuit Characteristics (HD404612, HD404614, HD404616, HD404618: VCC = 2.7 V to 6.0 V;
HD4074618: VCC = 3.0 V to 5.5 V, GND = 0 V, Ta = –20 to +75°C, unless otherwise specified)
Item
Symbol Pin(s) Min Typ Max Test Condition
Unit Notes
Segment driver Vds
voltage drop
SEG1– — — 0.6 Id = 3 µA
SEG32
V
1
Common driver Vdc
voltage drop
COM1– — — 0.3 Id = 3 µA
COM4
V
1
LCD power
RWell
supply division
resistor
100 300 900 Between V1 and GND kΩ
LCD voltage
VLCD
V1
2.7 — VCC HD404612, HD404614, V
2
HD404616, HD404618
3.0 — VCC HD4074618
V
2
Notes: 1. VDS and VDC are the voltage drops from power supply pins V1, V2, and V3, and GND to each
segment pin and each common pin.
2. When VLCD is supplied from an external source, the following relations must be retained:
VCC ≥ V1 ≥ V2 ≥ V3 ≥ GND
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