Description
The AT89S2051/S4051 is a low-voltage, high-performance CMOS 8-bit microcontroller with 2K/4K bytes of In-System Programmable (ISP) Flash program memory.
Features
- Compatible with MCS®51 Products.
- 2K/4K Bytes of In-System Programmable (ISP) Flash Program Memory.
- Serial Interface for Program Downloading.
- Endurance: 10,000 Write/Erase Cycles.
- 2.7V to 5.5V Operating Range.
- Fully Static Operation: 0 Hz to 24 MHz (x1 and x2 Modes).
- Two-level Program Memory Lock.
- 256 x 8-bit Internal RAM.
- 15 Programmable I/O Lines.
- Two 16-bit Timer/Counters.
- Six Interrupt Sources.
AT89S2051 Datasheet
