器件名称:
SM3513
功能描述:
4-Bit Single-Chip Microcomputer(For Data Bank Use)
文件大小:
39.47KB 共3页
简 介:
SM3513 SM3513 DESCRIPTION The SM3513 is a CMOS 4-bit single-chip microcomputer 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, 3 output ports, external memory control circuit, buzzer circuit and voltage detector circuit. One of three ports contains special output circuit for infrared (IR) communication. It is easy to realize timer function by timer signal interrupt since the oscillator circuit is built-in. 4-Bit Single-Chip Microcomputer (For Data Bank Use) Instruction cycle time : 3 s Operating temperature : –10 to +60°C Supply voltage : 3.8 to 6.0 V Package : 160-pin QFP (QFP160-P-2828) [Test Sample only] FEATURES ROM capacity : Program ROM 24 k x 23 bits Character ROM 6 x 8 x 256 bits Constant ROM 1 k x 4 bits RAM capacity : Working RAM 256 x 4 bits Display RAM 74 x 32 bits Data RAM 512 x 8 bits Memory expansion (external) : 16 M x 8 bits x 4 Buil-in battery detector LCD display : 74-segment x 32-common I/O ports : Parallel I/O 8 bits Input 2 bits Output 3 bits Buzzer output 1 bit (4 kHz) Key input 6 bits Standby release : 2 events (Timer signal, key input) LCD contrast adjustable : 16 levels Built-in oscillator : System clock (built-in CR oscillator) 1 MHz (external ceramic resonator) 1 MHz Timer (built-in CR oscillator) 32.8 kHz (external crystal) 32.768 kHz In the absence of confirmation by device specification sheets, SHARP takes no re……
