HD44780UA02FS データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HD44780UA02FS

Dot Matrix Liquid Crystal Display Controller/Driver

Hitachi -> Renesas Electronics 

HD44780U

Electrical Characteristics Notes

1. All voltage values are referred to GND = 0 V.

VCC

V1

A

V5

B

A = VCC –V5

B = VCC –V1

A ≥ 1.5 V

B ≤ 0.25 × A

The conditions of V1 and V5 voltages are for proper

operation of the LSI and not for the LCD output level.

The LCD drive voltage condition for the LCD output

level is specified as LCD voltage VLCD.

2. VCC ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ V5 must be maintained.

3. For die products, specified at 75°C.

4. For die products, specified by the die shipment specification.

5. The following four circuits are I/O pin configurations except for liquid crystal display output.

Input pin

Pin: E (MOS without pull-up)

Pins: RS, R/W (MOS with pull-up)

VCC

VCC

Output pin

Pins: CL1, CL2, M, D

VCC

PMOS

PMOS

PMOS

PMOS

NMOS

(pull up MOS)

NMOS

NMOS

I/O Pin

Pins: DB0 –DB7

VCC

(MOS with pull-up)

(pull-up MOS)

VCC

PMOS

(input circuit)

PMOS

Input enable

NMOS

VCC

NMOS

PMOS

NMOS

(output circuit)

(tristate)

Output enable

Data

54

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