ML9207-xx Display Controller/Driver Datasheet

ML9207-xx Datasheet, PDF, Equivalent


Part Number

ML9207-xx

Description

5 x 7 Dot Character x 24-Digit Display Controller/Driver

Manufacture

OKI electronic

Total Page 30 Pages
Datasheet
Download ML9207-xx Datasheet


ML9207-xx
OKI Semiconductor
ML9207-xx
FEDL9207-02
Issue Date: May 17, 2005
5 × 7 Dot Character × 24-Digit Display Controller/Driver with Character RAM
www.DataSheet4U.com
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)
• Segment driver (AD1 to AD4)
• Grid driver (COM1 to COM24)
General output port output current
: –5.0 mA
: –10.0 mA
: –50.0 mA
(VFL = –60 V)
(VFL = –60 V)
(VFL = –60 V)
Output driver (P1 to P4)
Content of display
: ±1.0 mA (VDD = 3.3 V±10%)
±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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ML9207-xx
OKI Semiconductor
BLOCK DIAGRAM
VDISP
VDD
GND
VFL
RESET
DA
CP
CS
8-bit
Shift
Register
DCRAM
24w × 8b
CGROM
240w × 35b
CGRAM
16w × 35b
ADRAM
24w × 4b
Command
Decoder
Control
Circuit
OSC0
OSC1
Timing
Generator1
Oscillator
Address
Selector
Write
Address
Counter
Read
Address
Counter
Timing
Generator2
Digit
Control
Duty
Control
FEDL9207-02
ML9207-xx
Segment
Driver
AD
Driver
SEG1
SEG35
AD1
AD4
Port
Driver
Grid
Driver
P1
P4
COM1
COM24
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Features OKI Semiconductor ML9207-xx 5 × 7 Dot C haracter × 24-Digit Display Controller /Driver with Character RAM FEDL9207-02 Issue Date: May 17, 2005 GENERAL DESC RIPTION The ML9207-xx is a dot matrix v acuum fluorescent display tube controll er driver IC which displays characters, numerics and symbols. Dot matrix vacuu m fluorescent display tube drive signal s are generated by serial data sent fro m a micro-controller. A display system is easily realized by internal ROM and RAM for character display. The ML9207-x x has low power consumption since it is made by CMOS process technology. -01 i s available as a general-purpose code. Custom codes are provided on customer's request. FEATURES • • • • : 3 .3 V ±10% or 5.0 V ±10% Logic power s upply (VDD) Fluorescent display tube dr ive 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 dr iver output can be connected directly to the fluorescent display tube. No pull-do.
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