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PDF ML9040-Axx Data sheet ( Hoja de datos )
| Número de pieza | ML9040-Axx | |
| Descripción | DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER | |
| Fabricantes | OKI electronic componets | |
| Logotipo |  |
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E2B0048-29-21
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ML9040-Axx/-Bxx
DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT
SEGMENT DRIVER
GENERAL DESCRIPTION
The ML9040-Axx/-Bxx is a dot matrix LCD controller which is fabricated in low power CMOS
silicon gate technology. Character display on the dot matrix character type LCD can be
controlled in combination with a 4-bit or 8-bit microcontroller. This LSI consists of 16-dot
COMMON driver, 40-dot SEGMENT driver, display data RAM, character generator RAM,
character generator ROM and control circuit.
The ML9040-Axx/-Bxx has the character generator ROM that can be programmed by custom
mask. The ML9040-Axx/-Bxx is a standard version having 160 characters with lowercase (5 x
7 dots), and 32 characters with uppercase (5 x 10 dots) in this ROM.
FEATURES
• Easy interface with an 8-bit or 4-bit microcontroller.
• Dot matrix LCD controller/driver for lowercase (5 x 7 dots) or uppercase (5 x 10 dots).
• Automatic power ON reset.
• COMMON signal drivers (16) and SEGMENT signal drivers (40).
• Can control up to 80 characters when used in combination with MSM5259.
• Character generator ROM for 160 characters with lowercase (5 x 7 dots) and 32 characters with
uppercase (5 x 10 dots).
• Character patterns are programmable by character generator RAM. (Lowercase: 5 x 8 dots,
8 patterns, uppercase: 5 x 11 dots, 4 patterns).
• Built-in oscillation circuit to connect with external resistor or ceralock.
• 1/8 duty (1 line; 5 x 7 dots + cursor), 1/11 duty (1 line; 5 x 10 dots + cursor), or 1/16 duty (2
lines; 5 x 7 dots + cursor), selectable.
• Clear display even at 1/5 bias, 3.0V LCD driving voltage.
• LCD driving waveform
ML9040-Axx: A mode
ML9040-Bxx: B mode
• Package options:
80-pin plastic QFP (QFP80-P-1420-0.80-BK)
(Product name: ML9040-Axx/-BxxGA)
xx indicates code number.
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¡ Semiconductor
ML9040-Axx/-Bxx
PIN DESCRIPTIONS
Symbol
R/W
RS
E
DB0 - DB7
OSC1, OSC2
COM1 - COM16
SEG1 - SEG40
DO
CP
L
DF
VDD
GND
V1, V2, V3, V4, V5
Description
Read/write selection input pin.
"H" : Read, and "L" : Write
Register selection input pin.
"H" : Data register, and "L" : Instruction register
Input pin for data input/output with CPU and for instruction register activation.
Input/output pins for data send/receive with CPU
Clock oscillating pins required for internal operation upon receipt of the LCD drive signal
and CPU instruction.
LCD COMMON signal output pins.
LCD SEGMENT signal output pins.
Output pin to be connected to MSM5259 to expand the number of characters to be
displayed.
Clock output pin used when DO pin data output shifts inside of MSM5259.
Clock output pin for the serially transferred data to be latched to MSM5259.
The alternating current signal (Display Frequency) output pin.
Power supply pin.
Ground pin.
Bias voltage input pins to drive the LCD.
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5 Page 
¡ Semiconductor
ML9040-Axx/-Bxx
Switching Characteristics
• Timing for input from the CPU
Parameter
R/W and RS setup time
E "H" pulse width
R/W and RS hold time
E rise time
E fall time
E "L" pulse width
E cycle time
DB0 to DB7 input data setup time
DB0 to DB7 input data hold time
Symbol
tB
tW
tA
tr
tf
tL
tC
tI
tH
(VDD = 4.5 to 5.5V, Ta = –20 to +75°C)
Min.
Typ.
Max.
Unit
140 —
—
ns
280 —
—
ns
10 — —
ns
— — 100 ns *
— — 100 ns *
280 —
—
ns
667 —
—
ns
180 —
—
ns
10 — —
ns
* Values of tr and tf are design specification and are actually determined after sample
evaluation.
R/W
RS
E
DB0 - DB7
VIL1 VIL1
VVIIHL11
tB
VVIIHL11
tW tA
VIL1
tr
VIH1
VIH1
tf
tI
VIL1
tH
VVIIHL11 Input data VVIIHL11
tC
tL
VIL1
11
11 Page | ||
| Páginas | Total 47 Páginas | |
| PDF Descargar | [ Datasheet ML9040-Axx.PDF ] | |
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