OKI Semiconductor
ML9208-xx
5
×
7 Dot Character
×
16-Digit Display Controller/Driver with Character RAM
FEDL9208-01
Issue Date: Feb. 23, 2004
GENERAL DESCRIPTION
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 (V
DD
)
: 3.3 V
±10%
or 5.0 V
±10%
•
Fluorescent display tube drive power supply (V
FL
) : V
DD
–20 V to V
DD
–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)
: –6 mA (V
FL
= V
DD
–42 V)
- Segment driver (AD1 and AD2)
: –15 mA (V
FL
= V
DD
–42 V)
- Grid driver (COM1 to COM16)
: –30 mA (V
FL
= V
DD
–42 V)
•
General output port output current
- Output driver (P1 and P2)
:
±1
mA (V
DD
= 3.3 V
±10%)
±2
mA (V
DD
= 5.0 V
±10%)
•
Content of display
- 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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