ML9041A データシートの表示（PDF） - Oki Electric Industry

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ML9041A

DOT MATRIX LCD CONTROLLER DRIVER

Oki Electric Industry 

OKI Semiconductor

PEDL9041A-02

ML9041A-xxA/xxB

ABSOLUTE MAXIMUM RATINGS

(GND = 0 V)

Parameter

Symbol Condition

Rating

Unit

Applicable pins

Supply Voltage

LCD Driving Voltage

Input Voltage

Storage Temperature

VDD

Ta = 25°C

–0.3 to +6.5

V

VDD–GND

V1, V2, V3,

V4, V5

Ta = 25°C VDD–7.5 to VDD+0.3

V

V1, V4, V5, V5IN, V2, V3A, V3B

R/W, E, SHT, CSR, S/P,

VI

Ta = 25°C –0.3 to VDD+0.3

V SSR, Sl, RS0, RS1, BE, CS,

T1 to T3, DB0 to DB7, VIN

TSTG

—

–55 to +150

°C

—

RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol Condition

Range

Unit

Supply Voltage

VDD

—

LCD Driving Voltage

VDD–V5

—

(See Note)

2.7 to 5.5

V

3.3 to 7.0

V

Voltage Multipler

Operating Voltage

VMUL

BE = “1”

2.7 to 3.5

V

Operating Temperature

Top

—

–40 to +85

°C

(GND = 0 V)

Applicable pins

VDD–GND

VDD–V5

(V5IN)

VDD–VIN

—

Note: This voltage should be applied across VDD and V5. The following voltages are output to the V1, V2,

V3A (V3B) and V4 pins:

• 1/4 bias

V1 = {VDD – (VDD – V5)/4} ±0.15 V

V2 = V3B = {VDD – (VDD – V5)/2} ±0.15 V

V4 = {VDD – 3 × (VDD – V5)/4 } ±0.15 V

• 1/5 bias

V1 = {VDD – (VDD – V5)/5} ±0.15 V

V2 = {VDD – 2 × (VDD – V5)/5} ±0.15 V

V3A = V3B = {VDD – 3 × (VDD – V5)/5} ±0.15 V

V4 = {VDD – 4 × (VDD – V5)/5} ±0.15 V

The voltages at the V1, V2, V3A (V3B), V4 and V5 pins should satisfy

VDD > V1 > V2 > V3A (V3B) > V4 > V5.

(Higher ←

→ Lower)

* If the chip is attached on a substrate using COG technology, the chip tends to be susceptible

to electrical characteristics of the chip due to trace resistance on the glass substrate. It is

recommended to use the chip by confirming that it operates on the glass substrate properly.

Trace resistance, especially, VDD and VSS trace resistance, between the chip on the LCD

panel and the flexible cable should be designed as low as possible. Trace resistance that

cannot be very well decreased, larger size of the LCD panel, or greater trace capacitance

between the microcontroller and the ML9041A device can cause device malfunction. In order

to avoid the device malfunction, power noise should be reduced by serial interfacing of the

microcontroller and the ML9041A device.

* Do not apply short-circuiting across output pins and across an output pin and an input/output

pin or the power supply pin in the output mode.

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