ML9208-xx Display Controller/Driver Datasheet

ML9208-xx Datasheet, PDF, Equivalent


Part Number

ML9208-xx

Description

5 X 7 Dot Character X 16-Digit Display Controller/Driver

Manufacture

OKI electronic

Total Page 30 Pages
Datasheet
Download ML9208-xx Datasheet


ML9208-xx
OKI Semiconductor
FEDL9208-01
Issue Date: Feb. 23, 2004
ML9208-xx
5 × 7 Dot Character × 16-Digit Display Controller/Driver with Character RAM
GENERAL DESCRIPTION
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The ML9208-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.
FEATURES
Logic power supply and vacuum fluorescent display tube drive power supply (VDD)
: 3.3 V ±10% or 5.0 V ±10%
Fluorescent display tube drive power supply (VFL) : VDD –20 V to VDD –42 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 and AD2)
- Grid driver (COM1 to COM16)
General output port output current
: –6 mA (VFL = VDD –42 V)
: –15 mA (VFL = VDD –42 V)
: –30 mA (VFL = VDD –42 V)
- Output driver (P1 and P2)
Content of display
: ±1 mA (VDD = 3.3 V ±10%)
±2 mA (VDD = 5.0 V ±10%)
- CGROM 5 × 7 dots
: 248 types (character data)
- CGRAM 5 × 7 dots
: 8 types (character data)
- ADRAM 16 (display digit) × 2 bits (symbol data)
- DCRAM 16 (display digit) × 8 bits (register for character data display)
- General output port
2 bits (static operation)
Display control function
- Display digit
: 9 to 16 digits
- Display duty (contrast adjustment)
: 8 stages
- All lights ON/OFFs
3 interfaces with microcontroller
: DA, CS, CP (4 interfaces when RESET is added)
1-byte instruction execution (excluding data write to RAM)
Built-in oscillation circuit (external R and C)
Package options:
64-pin plastic QFP (QFP64-P-1414-0.80-BK) (ML9208-xxGA)
64-pin plastic SSOP (SSOP64-P-525-0.80-K) (ML9208-xxMB)
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ML9208-xx
OKI Semiconductor
BLOCK DIAGRAM
VDD
GND
VFL
RESET
DA
CP
CS
8 bit
Shift
Register
DCRAM
16w × 8b
CGROM
248w × 35b
CGRAM
8w × 35b
ADRAM
16w × 2b
Command
Decoder
Control
Circuit
OSC0
OSC1
Timing
Generator 1
Oscillator
Address
Selector
Write
Address
Counter
Read
Address
Counter
Digit
Control
Duty
Control
Timing
Generator 2
FEDL9208-01
ML9208
Segment
Driver
AD
Driver
SEG1
SEG35
AD1
AD2
Port
Driver
Grid
Driver
P1
P2
COM1
COM16
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Features OKI Semiconductor ML9208-xx 5 × 7 Dot C haracter × 16-Digit Display Controller /Driver with Character RAM FEDL9208-01 Issue Date: Feb. 23, 2004 GENERAL DES CRIPTION The ML9208-xx is a dot matrix vacuum fluorescent display tube control ler driver IC which displays characters , numerics and symbols. Dot matrix vacu um fluorescent display tube drive signa ls are generated by serial data sent fr om a micro-controller. A display system is easily realized by internal ROM and RAM for character display. FEATURES Logic power supply and vacuum fluore scent display tube drive power supply ( VDD) : 3.3 V ±10% or 5.0 V ±10% • F luorescent display tube drive power sup ply (VFL) : VDD –20 V to VDD –42 V • VFD driver output current (VFD driv er output can be connected directly to the fluorescent display tube. No pull-d own resistor is required.) - Segment dr iver (SEG1 to SEG35) : –6 mA (VFL = V DD –42 V) - Segment driver (AD1 and A D2) : –15 mA (VFL = VDD –42 V) - Grid driver (COM1 to COM16) : –30 mA (VFL = VDD .
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