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Compatible with MCS-51 Products.
The AT89C4051 is a low-voltage, high-performance CMOS 8-bit microcontroller with4K bytes of Flash programmable and erasable read-only memory. The device is manufacturedusing Atmel's high-density nonvolatile memory technology and iscompatible with the industry-standard MCS-51 instruction set. By combining a versatile8-bit CPU with Flash on a monolithic chip, the Atmel AT89C4051 is a powerfulmicrocontroller which provides a highly-flexible and cost-effective solution to manyembedded control applications.
| 4K Bytes of Reprogrammable Flash Memory | |
| 128 x 8-bit Internal RAM | |
| 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 | |
| Power-On Reset (POR) | |
| 15 Programmable I/O Lines | |
| 20-lead PDIP | |
| Operating Voltage | 2.7 - 6V |
| 0Hz - 24MHz |
| 1 Ref. Doc. | Download |
