SM3515 [SHARP]
4-Bit Single-Chip Microcomputer(For Data Bank Use); 4位单片机（用于数据银行使用）
| 型号： | SM3515 |
| 厂家： | 
SHARP ELECTRIONIC COMPONENTS |
| 描述： | 4-Bit Single-Chip Microcomputer(For Data Bank Use) |
| 文件： | 总3页 (文件大小：41K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SM3515
4-Bit Single-Chip Microcomputer
(For Data Bank Use)
SM3515
DESCRIPTION
The SM3515 is a CMOS 4-bit single-chip micro-
computer for databank incorporating data memory
RAM, LCD driver, key input circuits 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
12 k x 23 bits
256 x 4 bits
60 x 8 bits
512 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) 300 kHz
Timer (built-in CR oscillator)
(external crystal)
32.8 kHz
32.768 kHz
• Instruction cycle time : 10 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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SM3515
SYSTEM COMFIGURATION EXAMPLE
Common signal
Segment signal
S1-S60
H1-H8
Key matrix
(MAX. 84-Key)
KI2-KI7
XCR
SM3515
S1-S6
S53-S60
VCC
KI1 VCC TEST RESET
XI
XO BZ
VCC
RESET
Key
ON
Key
+
–
3V
Buzzer
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SM3515
100 QFP (QFP100-P-1420)
± 0.05
0.15
51
80
81
50
100
31
1
30
± 0.2
± 0.2
1.3
± 0.2
± 0.4
(2.4)
20.0
24.8
(2.4)
2.75
± 0.1
0.1
(22.98)
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