ML9207 データシートの表示（PDF） - Oki Electric Industry

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ML9207

5 ×7 Dot Character ×24-Digit Display Controller/Driver with Character RAM

Oki Electric Industry 

OKI Semiconductor

FEDL9207-02

Issue Date: May 17, 2005

ML9207-xx

5 × 7 Dot Character × 24-Digit Display Controller/Driver with Character RAM

GENERAL DESCRIPTION

The ML9207-xx is a dot matrix vacuum fluorescent display tube controller driver IC which displays characters,

numerics and symbols.

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 ML9207-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

• Logic power supply (VDD)

: 3.3 V ±10% or 5.0 V ±10%

• Fluorescent display tube drive power supply (VDISP) : 3.3 V ±10% or 5.0 V ±10%

• Fluorescent display tube drive power supply (VFL) : –20 to –60 V

• VFD driver output current

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

required.)

• Segment driver (SEG1 to SEG35)

: –5.0 mA

(VFL = –60 V)

• Segment driver (AD1 to AD4)

: –10.0 mA (VFL = –60 V)

• Grid driver (COM1 to COM24)

: –50.0 mA

(VFL = –60 V)

• General output port output current

Output driver (P1 to P4)

: ±1.0 mA (VDD = 3.3 V±10%)

• Content of display

±2.0 mA (VDD = 5.0 V±10%)

• CGROM 5 × 7 dots

: 240 types (character data)

• CGRAM 5 × 7 dots

: 16 types (character data)

• ADRAM 24 (display digit) × 4 bits (symbol data)

• DCRAM 24 (display digit) × 8 bits (register for character data display)

• General output port

4 bits (static operation)

• Display control function

• Display digit

: 9 to 24 digits

• Display duty (brightness adjustment) : 0/1024 to 960/1024

• All lights ON/OFF

• 4 interfaces with microcontroller

: DA, CS, CP, RESET

• 1-byte instruction execution (excluding data write to RAM and Display duty set)

• Built-in oscillation circuit

• Crystal oscillation or ceramic oscillation

• Package options:

80-pin QFP package (QFP80-P-1414-0.65-K) (Product name : ML9207-xxGP)

80-pin QFP package (QFP80-P-1420-0.80-BK) (Product name : ML9207-xxGA)

xx indicates the code number.

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