| 전자부품 데이터시트 검색엔진 |
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AT89S2051 데이터시트(PDF) 2 Page - ATMEL Corporation |
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AT89S2051 데이터시트(HTML) 2 Page - ATMEL Corporation |
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2 / 45 page ![]() 2 3390C–MICRO–7/05 AT89S2051/S4051 The on-board Flash program memory is accessible through the ISP serial interface. Holding RST active forces the device into a serial programming interface and allows the program mem- ory to be written to or read from, unless one or more lock bits have been activated. 2. Pin Configuration 2.1 20-lead PDIP/SOIC 3. Block Diagram 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 RST/VPP (RXD) P3.0 (TXD) P3.1 XTAL2 XTAL1 (INT0) P3.2 (INT1) P3.3 (T0) P3.4 (T1) P3.5 GND VCC P1.7 (SCK) P1.6 (MISO) P1.5 (MOSI) P1.4 P1.3 P1.2 P1.1 (AIN1) P1.0 (AIN0) P3.7 |
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