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AT89C4051 Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT89C4051 Datasheet(HTML) 1 Page - ATMEL Corporation |
1 / 18 page 1 Features • Compatible with MCS®51 Products • 4K Bytes of Reprogrammable Flash Memory • Endurance: 1,000 Write/Erase Cycles • 2.7V to 6V Operating Range • Fully Static Operation: 0 Hz to 24 MHz • Two-level Program Memory Lock • 128 x 8-bit Internal RAM • 15 Programmable I/O Lines • Two 16-bit Timer/Counters • Six Interrupt Sources • Programmable Serial UART Channel • Direct LED Drive Outputs • On-chip Analog Comparator • Low-power Idle and Power-down Modes • Brown-out Detection Description The AT89C4051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 4K bytes of Flash programmable and erasable read-only memory (PEROM). The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. By combining a ver- satile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C4051 is a powerful microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications. The AT89C4051 provides the following standard features: 4K bytes of Flash, 128 bytes of RAM, 15 I/O lines, two 16-bit timer/counters, a five-vector, two-level inter- rupt architecture, a full duplex serial port, a precision analog comparator, on-chip oscillator and clock circuitry. In addition, the AT89C4051 is designed with static logic for operation down to zero frequency and supports two software-selectable power sav- ing modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator disabling all other chip functions until the next hardware reset. Pin Configuration PDIP/SOIC 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 (TO) P3.4 (T1) P3.5 GND VCC P1.7 P1.6 P1.5 P1.4 P1.3 P1.2 P1.1 (AIN1) P1.0 (AIN0) P3.7 Rev. 1001D–06/01 8-bit Microcontroller with 4K Bytes Flash AT89C4051 |
Similar Part No. - AT89C4051_01 |
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Similar Description - AT89C4051_01 |
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