(MSM9006-01/02) LCD Driver with Keyscan Function
Description
E2B0045-27-Y3 ¡ Semiconductor
¡ Semiconductor MSM9006-01, -02
LCD Driver with Keyscan Function
This version: Nov.
1997 MSM9006-01, -02 Previous version: Mar.
1992 1996 June
GENERAL DESCRIPTION
The MSM9006-01 is an LCD driver for a 1/3 duty dynamic display.
It can directly drive an LCD with a maximum of 123 segments.
The MSM9006-02 is an LCD driver for a 1/4 duty dynamic display, and can directly drive an LCD with a maximum of 164 segments.
The MSM9006-01, -02 are capable of directly driving one LED, and up to five ports can be used by simply switching the LCD pin.
The internal 5 x 5 keyscan circuit enables keyboard input, decreasing the number of interconnections between the front panel and the CPU.
FEATURES
• 41 segment outputs (when LED and output port are not used) A maximum of 123 segments can be dispalyed (MSM9006-01) A maximum of 164 segments can be displayed (MSM9006-02) • One LED can be driven directly (IO=–15mA max.
) • Up to five output ports are available (IO=–2mA to +1mA) • The state of up to 25 key switches can be read through the internal 5 x 5 keyscan circuit • The interface with the CPU is a serial interface using LOAD, DATA I/O, and CLOCK • Built-in RC oscillation circuit for LCD alternating current drive • Built-in voltage dividing resistor for bias voltage generation • Power supply voltage : 5V± 10% • Temperature range : –40 to +85°C • Package: 64-pin plastic QFP (QFP64-P-1414-0.
80-BK)(Product name : MSM9006-01GS-BK) (Product name : MSM9006-02GS-BK)
1/18
¡ Semiconductor
MSM9006-01, -02
BLOCK DIAGRAM
MSM9006-01
COM1 COM3 SEG1 SEG35 SEG36/P05 SEG41/LED
COMMON DRIVER
35 OUT SEGMENT DRIVER
5 SEGMENT/PORT & SEGMENT/LED DRIVER
41 BIT DATA SELECTOR TIMING GEN
41 BIT LATCH OSC OSC
41 BIT LATCH
41 BIT LATCH VDD VSS
RESET
MODE SELECTOR
TEST
C6 C5 C4 C3 C2 C1 C0 LOAD CONTROL DATAI/O CLOCK LOGIC 5¥5 KEY SCANNER INT (41+7) 48 BIT SHIFT REGISTER
C0 C1 C2 C3 C4
R0 R1 R2 R3 R4
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¡ Semiconductor
MSM9006-01, -02
BLOCK DIAGRAM
MSM9006-02
CO...
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