|
|
PDF ML9208-xx Data sheet ( Hoja de datos )
| Número de pieza | ML9208-xx | |
| Descripción | 5 X 7 Dot Character X 16-Digit Display Controller/Driver | |
| Fabricantes | OKI electronic | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ML9208-xx (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
OKI Semiconductor
FEDL9208-01
Issue Date: Feb. 23, 2004
ML9208-xx
5 × 7 Dot Character × 16-Digit Display Controller/Driver with Character RAM
GENERAL DESCRIPTION
www.DataSheet4U.com
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)
- Segment driver (AD1 and AD2)
- Grid driver (COM1 to COM16)
• General output port output current
: –6 mA (VFL = VDD –42 V)
: –15 mA (VFL = VDD –42 V)
: –30 mA (VFL = VDD –42 V)
- Output driver (P1 and P2)
• Content of display
: ±1 mA (VDD = 3.3 V ±10%)
±2 mA (VDD = 5.0 V ±10%)
- 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)
1/33
1 page  
OKI Semiconductor
FEDL9208-01
ML9208
PIN DESCRIPTION
Pin
Symbol Type Connects to
QFP SSOP
Description
1 to 31,
5 to 39 SEG1 to 35 O
61 to 64
Fluorescent
tube anode
electrode
Fluorescent display tube anode electrode drive output.
Directly connected to fluorescent display tube and a
pull-down resistor is not necessary. IOH > –6 mA
32 to 47 40 to 55 COM1 to 16 O
Fluorescent
tube grid
electrode
Fluorescent display tube grid electrode drive output.
Directly connected to fluorescent display tube and a
pull-down resistor is not necessary. IOH > –30 mA
59, 60 3, 4 AD1, AD2 O
Fluorescent
tube anode
electrode
Fluorescent display tube anode electrode drive output.
Directly connected to fluorescent display tube and a
pull-down resistor is not necessary. IOH > –15 mA
57, 58 1, 2
P1, P2
General port output.
LED drive
O control pins Output of these pins in static operation, so these pins can
drive the LED.
56 64
49 57
48 56
VDD
GND
VFL
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).
55 63 DA I Microcontroller
Input from LSB.
Shift clock input.
54 62 CP I Microcontroller
Serial data is shifted on the rising edge of CP.
Chip select input.
53 61 CS I Microcontroller
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
• Display digit ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅ 16 digits
52
60
RESET
I
Microcontroller • Contrast adjustment ⋅⋅⋅⋅⋅⋅⋅ 8/16
or C2, R2
• All lights ON or OFF ⋅⋅⋅⋅⋅⋅⋅ OFF mode
• All outputs ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅ “Low” level
50 58 OSC0 I
51 59 OSC1 O
C1, R1
RESET
C2
R2
(Circuit when R and C are
connected externally)
See Application Circuit.
External RC pin for RC oscillation.
Connect R and C externally. The RC time constant
depends on the VDD voltage used. Set the target oscillation
frequency to 2 MHz.
OSC0
OSC1
R1
(RC oscillation circuit)
C1 See Application Circuit.
5/33
5 Page 
OKI Semiconductor
• Digit Output Timing (for 16-digit display, at a duty of 15/16)
T = 8/fOSC
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
AD1, 2
SEG1-35
Frame cycle t1 = 1024T (t1= 4.096 ms when fosc = 2.0 MHz)
Display timing t2 = 60T (t2 = 240 µs when fosc = 2.0 MHz)
Blank timing t3 = 4T
(t3 = 16 µs when fosc = 2.0 MHz)
FEDL9208-01
ML9208
VDD
VFL
VDD
VFL
11/33
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ML9208-xx.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ML9208-xx | 5 X 7 Dot Character X 16-Digit Display Controller/Driver | OKI electronic |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |