Datasheet > SM3503

SM3503

更新时间： 2025-03-16 22:43:07

品牌	Logo	应用领域
夏普 - SHARP		/
页数	文件大小	规格书
3页	44K
描述
4-Bit Single-Chip Microcomputer(For Data Bank Use)

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SM3503 数据手册

SM3503

4-Bit Single-Chip Microcomputer

(For Data Bank Use)

SM3503

DESCRIPTION

The SM3503 is a CMOS 4-bit single-chip micro-

computer for databank incorporating data memory

RAM, LCD driver, key input circuit and buzzer out-

put circuit. By connecting an external crystal, a 1Hz

timer interrupt is made possible for easier clock

function.

FEATURES

• ROM capacity :

Program ROM

Character ROM 5 x 8 x 128 bits

• RAM capacity :

Working RAM

6 k x 23 bits

256 x 4 bits

60 x 8 bits

1 k x 8 bits

Display RAM

Data RAM

• LCD display : 60-segment x 8-common

• I/O ports :

Buzzer output

Key input

1 bit (4 kHz)

7 bits

• Standby release : 2 events (2 Hz signal, key input)

• Built-in oscillator :

System clock (built-in CR oscillator) 250 kHz

Timer (built-in CR oscillator)

(external crystal)

32.8 kHz

32.768 kHz

• Instruction cycle time : 12 µs

• Operating temperature : –10 to +60°C

• Supply voltage : 2.5 to 3.4 V

• Package : 100-pin QFP (QFP100-P-1420)

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.

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