ML9207 Datasheet, PDF (1/35 Pages) OKI electronic componets – 5 X 7 Dot Character × 24-Digit Display Controller/Driver with Character RAM

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 (V_DD)
: 3.3 V ±10% or 5.0 V ±10%
• Fluorescent display tube drive power supply (V_DISP) : 3.3 V ±10% or 5.0 V ±10%
• Fluorescent display tube drive power supply (V_FL) : –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
(V_FL = –60 V)
• Segment driver (AD1 to AD4)
: –10.0 mA (V_FL = –60 V)
• Grid driver (COM1 to COM24)
: –50.0 mA
(V_FL = –60 V)
• General output port output current
Output driver (P1 to P4)
: ±1.0 mA (V_DD = 3.3 V±10%)
• Content of display
±2.0 mA (V_DD = 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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