PEDL9204-02

• Logic power supply (VDD) : 3.3 V±10% or 5.0 V±10%
• VFD tube drive power supply (VSEG, VCOM ) : 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 (VSEG = 60 V) All the driver outputs are high : 350 mA (VSEG = 60 V)
• Segment driver (ADA, ADB) : 15 mA (VSEG = 60 V)
• Grid driver (COM1 to 24) : 25 mA (VCOM = 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 : 24 (display digit)* 1 bit (symbol data; can be used for a cursor.)
• DCRAM_A : 24 (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 : 24 (display digit)* 1 bit (symbol data; can be used for a cursor.)
• DCRAM_B : 24 (display digit) * 8 bits (register for character data display)
• Display control function
• GCRAM : Simultaneous output of COM1 to 24 can be set in 1 grid.
• Display digits : 1 to 24 digits (9- to 24-bit arbitrary setting)
• Display duty (brightness adjustment) : 0/1024 to 960/1024 stages
• All lights ON/OFF
• 5 interfaces with microcontroller:DI/O, CS, CP, RESET, INT
• Built-in key scan circuit for 5 * 6 matrix key switch
• Built-in key scan circuit for 3-channel encoder type rotary switch
• 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: 128-pin plastic QFP (QFP128-P-1420-0.50-K) (ML9204-xxGA)

The ML9204-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 24 digits * 2 lines.

Dot matrix vacuum fluorescent ML9204-xx 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.

Built-in key scan for 3-channel encoder type rotary switch and 5 * 6 matrix key switch allow the user to receive
each switch input.

The ML9204-xx has low power consumption since it is made by CMOS process technology. 01 is available as a general-purpose code.

Custom codes ML9204-xx are provided on customer's request.