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參數(shù)資料
| 型號： | SM3508 |
| 廠商： | Sharp Corporation |
| 英文描述： | 4-Bit Single-Chip Microcomputer(For Data Bank Use) |
| 中文描述： | 4位單片機（用于數(shù)據(jù)銀行使用） |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 39K |
| 代理商： | SM3508 |
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In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books,
etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
SM3508
DESCRIPTION
The SM3508 is a CMOS 4-bit single-chip micro-
computer for databank incorporating data memory
RAM, LCD driver (the output is adjustable in 16
steps for various contrast), key/switch input circuit,
8-bit parallel I/O port, 2 output ports and buzzer
output circuit. The chip also has memory expansion
controlling feature. One of two ports contains spe-
cial output circuit for infrared (IR) communication.
By connecting an external crystal, a 1Hz timer is
made possible for easier clock function.
FEATURES
ROM capacity :
Program ROM
Character ROM
Constant ROM
12 k x 23 bits
6 x 8 x 256 bits
1 k x 4 bits
RAM capacity :
Working RAM
Display RAM
Data RAM
256 x 4 bits
74 x 16 bits
3 k x 8 bits
Memory expansion (external) : 1M x 8 bits x 3
LCD display : 74-segment x 16-common
I/O ports :
Parallel I/O
Input
Output
Buzzer output
Key input
Standby release : 2 events (2 Hz signal, key input)
Built-in oscillator :
System clock (built-in CR oscillator)
(external ceramic resonator)
Timer (built-in CR oscillator)
(external crystal)
8 bits
2 bits
2 bits
1 bit (4 kHz)
6 bits
Instruction cycle time : 3 μs
Operating temperature : –10 to + 60°C
Supply voltage : 2.5 to 5.5 V
Package : 128-pin QFP (QFP128-P-2828)
[Test Sample only]
SM3508
4-Bit Single-Chip Microcomputer
(For Data Bank Use)
1 MHz
1 MHz
32.8 kHz
32.768 kHz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM3509 | 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:4-Bit Single-Chip Microcomputer(For Data Bank Use) |
| SM350A | 制造商:UNIOHM 制造商全稱:UNIOHM 功能描述:3.0 AMP SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS |
| SM350A11200 | 制造商:Schneider Electric 功能描述:SUPERPROX ULTRASONIC PROXIMITY SENSOR 制造商:Schneider-Telemacanique 功能描述:SUPERPROX ULTRASONIC PROXIMITY SENSOR 制造商:SCHNEIDER ELECTRIC 功能描述:SUPERPROX ULTRASONIC PROXIMITY SENSOR |
| SM350A11200FP | 制造商:Schneider Electric 功能描述:SUPERPROX ULTRASONIC PROXIMITY SENSOR 制造商:Schneider-Telemacanique 功能描述:SUPERPROX ULTRASONIC PROXIMITY SENSOR 制造商:SCHNEIDER ELECTRIC 功能描述:SUPERPROX ULTRASONIC PROXIMITY SENSOR |
| SM350A20100 | 制造商:Schneider Electric 功能描述:SUPERPROX ULTRASONIC PROXIMITY SENSOR 制造商:Schneider-Telemacanique 功能描述:SUPERPROX ULTRASONIC PROXIMITY SENSOR 制造商:SCHNEIDER ELECTRIC 功能描述:SUPERPROX ULTRASONIC PROXIMITY SENSOR |
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