¡ Semiconductor

ML9203-xx

1/30

¡ Semiconductor

ML9203-xx

5

¥ 7 Dot Character ¥ 16-Digit ¥ 2-Line Display Controller/Driver with Character RAM

GENERAL DESCRIPTION

The ML9203-xx is a 5 ¥ 7 dot matrix type vacuum fluorescent display tube controller driver IC

which displays characters, numerics and symbols of a maximum of 16 digits ¥ 2 lines.

Dot matrix vacuum fluorescent display tube drive signals are generated by serial data sent from

a micro-controller. A display system is easily realized by internal ROM and RAM for character

display.

The ML9203-xx has low power consumption since it is made by CMOS process technology.

-01 is available as a general-purpose code.

Custom codes are provided on customer's request.

FEATURES

: 3.3 V

±10% or 5.0 V±10%

: 20 to 60 V

• VFD driver output current

(VFD driver output can be connected directly to the VFD tube. No pull-down resistor is

required.)

- Segment driver (SEGA1 to A35, SEGB1 to B35)

Only one driver output is high

All the driver outputs are high

- Segment driver (ADA, ADB)

- Grid driver (COM1 to 16)

• Content of display

SEGA1 to SEGA35 and ADA

- CGROM_A 5¥7 dots

: 240 types (character data)

- CGRAM_A 5¥7 dots

: 16 types (character data)

- ADRAM_A 16 (display digit) ¥ 1 bit (symbol data; can be used for a cursor.)

- DCRAM_A 16 (display digit) ¥ 8 bits (register for character data display)

SEGB1 to SEGB35 and ADB

- CGROM_B 5¥7 dots

: 240 types (character data)

- CGRAM_B 5¥7 dots

: 16 types (character data)

- ADRAM_B 16 (display digit) ¥ 1 bit (symbol data; can be used for a cursor.)

- DCRAM_B 16 (display digit) ¥ 8 bits (register for character data display)

• Display control function

- Display digit

: 1 to 16 digits

- Display duty (brightness adjustment)

: 0 to 1024 stages

- All lights ON/OFF

• 3 interfaces with microcontroller

: DA, CS, CP (4 interfaces when RESET is added)

• Built-in oscillation circuit

Crystal oscillation or ceralock oscillation : 4.0 MHz (Typ)

• Package options:

100-pin plastic QFP (QFP100-P-1420-0.65-BK) (Product name: ML9203-xxGA)

E2C0041-19-64

This version: Jun. 1999