FEDL9203-01
1
Semiconductor
ML9203-xx
GENERAL DESCRIPTION
This version: Sep. 2001
5
×
7 Dot Character
×
16-Digit
×
2-Line Display Controller/Driver with Character RAM
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
• Logic power supply (V
DD
)
: 3.3 V±10% or 5.0 V±10%
• VFD tube drive power supply (V
DISP
) : 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
: –5 mA (V
DISP
= 60 V)
All the driver outputs are high
: –350 mA (V
DISP
= 60 V)
· Segment driver (ADA, ADB)
: –20 mA (V
DISP
= 60 V)
· Grid driver (COM1 to 16)
: –50 mA (V
DISP
= 60 V)
• 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) : 0/1024 to 960/1024 stages
· All lights ON/OFF
• 4 interfaces with microcontroller
: DA,
CS, CP,
and
RESET
• Built-in oscillation circuit
Crystal oscillation or ceramic oscillation: 4.0 MHz (Typ)
• Standby function
Inhibiting the oscillator circuit provides low power consumption.
• Package options:
100-pin plastic QFP (QFP100-P-1420-0.65-BK) (Product name: ML9203-xxGA)
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