8-bit CISC microcontroller featuring an 8051 core, 2KB Flash memory, and 128B RAM. Operates at up to 24MHz with an internal oscillator and supports UART/USART interfaces. This through-hole component is housed in a 20-pin PDIP package, offering 15 programmable I/Os and two timers/counters. Designed for a 5V operating supply voltage, it functions within a -40°C to 85°C temperature range and is RoHS compliant.
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Microchip AT89C2051-24PU technical specifications.
| Access Time | 24us |
| Address Bus Width | 8b |
| Package/Case | PDIP |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Frequency | 24MHz |
| Height | 4.963mm |
| Interface | UART, USART |
| Lead Free | Lead Free |
| Length | 26.92mm |
| Max Frequency | 24MHz |
| Max Operating Temperature | 85°C |
| Max Supply Voltage | 6V |
| Memory Size | 2KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Min Supply Voltage | 4V |
| Mount | Through Hole |
| Number of I/Os | 15 |
| Number of Programmable I/O | 15 |
| Number of Timers/Counters | 2 |
| Number of UART Channels | 1 |
| Operating Supply Voltage | 5V |
| Oscillator Type | Internal |
| Packaging | Rail/Tube |
| Radiation Hardening | No |
| RAM Size | 128B |
| Reach SVHC Compliant | No |
| RoHS Compliant | Yes |
| Series | 89C |
| Width | 7.112mm |
| RoHS | ROHS3 Compliant |
| Reach Status | REACH Unaffected |
| ECCN | EAR99 |
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