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ML9208-xx Dataheets PDF



Part Number ML9208-xx
Manufacturers OKI electronic
Logo OKI electronic
Description 5 X 7 Dot Character X 16-Digit Display Controller/Driver
Datasheet ML9208-xx DatasheetML9208-xx Datasheet (PDF)

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. FEAT.

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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 (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) : –6 mA (VFL = VDD –42 V) - Segment driver (AD1 and AD2) : –15 mA (VFL = VDD –42 V) - Grid driver (COM1 to COM16) : –30 mA (VFL = VDD –42 V) • General output port output current - Output driver (P1 and P2) : ±1 mA (VDD = 3.3 V ±10%) ±2 mA (VDD = 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) www.DataSheet4U.com 1/33 FEDL9208-01 OKI Semiconductor ML9208 BLOCK DIAGRAM VDD GND VFL DCRAM 16w × 8b CGROM 248w × 35b Segment Driver RESET DA CP CS 8 bit Shift Register CGRAM 8w × 35b SEG35 AD1 AD Driver AD2 SEG1 ADRAM 16w × 2b Address Selector Command Decoder Control Circuit Write Address Counter Read Address Counter P1 Port Driver P2 Digit Control Duty Control Timing Generator 1 Timing Generator 2 COM1 Grid Driver COM16 OSC0 Oscillator OSC1 2/33 FEDL9208-01 OKI Semiconductor ML9208 PIN CONFIGURATION (TOP VIEW) 52 RESET 51 OSC1 50 OSC0 64 SEG4 63 SEG3 62 SEG2 61 SEG1 SEG5 1 SEG6 2 SEG7 3 SEG8 4 SEG9 5 SEG10 6 SEG11 7 SEG12 8 SEG13 9 SEG14 10 SEG15 11 SEG16 12 SEG17 13 SEG18 14 SEG19 15 SEG20 16 SEG21 17 SEG22 18 SEG23 19 SEG24 20 SEG25 21 SEG26 22 SEG27 23 SEG28 24 SEG29 25 SEG30 26 SEG31 27 SEG32 28 SEG33 29 SEG34 30 SEG35 31 COM1 32 49 GND 48 VFL 47 COM16 46 COM15 45 COM14 44 COM13 43 COM12 42 COM11 41 COM10 40 COM9 39 COM8 38 COM7 37 COM6 36 COM5 35 COM4 34 COM3 33 COM2 60 AD1 59 AD2 58 P2 56 VDD 55 DA 54 CP 57 P1 64-Pin Plastic QFP 53 CS 3/33 FEDL9208-01 OKI Semiconductor ML9208 P1 P2 AD2 AD1 SEG1 SEG2 SEG3 SEG4 SEG5 1 2 3 4 5 6 7 8 9 64 VDD 63 62 61 DA CP CS 60 RESET 59 OSC1 58 OSC0 57 GND 56 VFL 55 COM16 54 COM15 53 COM14 52 COM13 51 COM12 50 COM11 49 COM10 48 COM9 47 COM8 46 COM7 45 COM6 44 COM5 43 COM4 42 COM3 41 COM2 40 COM1 39 SEG35 38 SEG34 37 SEG33 36 SEG32 35 SEG31 34 SEG30 33 SEG29 SEG6 10 SEG7 11 SEG8 12 SEG9 13 SEG10 14 SEG11 15 SEG12 16 SEG13 17 SEG14 18 SEG15 19 SEG16 20 SEG17 21 SEG18 22 SEG19 23 SEG20 24 SEG21 25 SEG22 26 SEG23 27 SEG24 28 SEG25 29 SEG26 30 SEG27 31 SEG28 32 64-Pin Plastic SSOP 4/33 FEDL9208-01 OKI Semiconductor ML9208 PIN DESCRIPTION Pin QFP 1 to 31, 61 to 64 SSOP Symbol Type Connects to Fluorescent tube anode electrode Fluorescent tube grid electrode Fluorescent tube anode electrode LED drive control pins Description Fluorescent display tube anode electrode drive output. Directly connected to fluorescent display tube and a pull-down resistor is not necessary. IOH > –6 mA Fluorescent display tube grid electrode drive output. Directly connected to fluorescent display tube and a pull-down resistor is not necessary. IOH > –30 mA Fluorescent display tube anode electrode drive output. Directly connected to fluorescent display tube and a pull-down resistor is not necessary. IOH > –15 mA General port output. Output of these pins in static operation, so these pins can drive the LED. VDD-GND are power supplies for internal logic. — Power supply VDD-VFL are power supplies for driving fluorescent tubes. Apply VFL after VDD is applied. Serial data input (positive logic). Input from LSB. Shift clock input. Serial data is shifted on the rising edge of CP. Chip select input. Serial data transfer is disabled when CS pin is “H” level. Reset input. “Low” initializes all the functions. Initial status is as follows. • Address of each RAM ⋅⋅⋅⋅ address “00”H • Data of each RAM ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅ Content is undefined 52 60 RESET I • Display digit ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅ 16 digits Microcontroller • Contrast adjustment ⋅⋅⋅⋅⋅⋅⋅ .


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