| number_of_i_o_pins | 32 |
| supply_voltage_dc | 5.00 V, 5.50 V (max) |
| access_time | 24.0 µs |
| reach_svhc_compliance | No SVHC |
| lead_free_status | Lead Free |
| mounting_style | Through Hole |
| packaging | Tube |
| case_package | DIP |
| memory_size | 4000 B |
| ram_bytes | 128 B |
| clock_speed | 33.0 MHz, 24.0 MHz |
| core_architecture | 8051 |
| number_of_bits | 8 |
| rohs_status | Compliant |
| pin_count | 40 |
| flash_memory_bytes | 4096 B |
| Controller Family/Series | AT89S51 |
| CPU Speed | 24MHz |
| Program Memory Size | 4KB |
| RAM Memory Size | 128Byte |
| No. of Pins | 40Pins |
| MCU Case Style | DIP |
| No. of I/O's | 32I/O's |
| Embedded Interface Type | SPI, UART |
| Supply Voltage Min | 4V |
| Supply Voltage Max | 5.5V |
| Packaging | Each |
| Product Range | 8051 Microcontrollers |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 3 - 168 hours |
| SVHC | No SVHC (17-Dec-2015) |
| Clock Frequency | 33MHz |
| Device Marking | AT89S51-24PU |
| Flash Memory Size | 4KB |
| Logic Function Number | 51 |
| MCU Family | 8051 |
| MCU Series | AT89S51 |
| MPU Core Size | 8bit |
| Memory Type | Flash |
| Microprocessor/Controller Features | 6 Interrupt Sources, ISP, UART, PDM, WDT |
| No. of Bits | 8bit |
| No. of Timers | 2 |
| Number of bits In Timer | 16 |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
| Operating Temperature Range | -40°C to +85°C |
| Oscillator Type | External, Internal |
| Peripherals | Timer |
| Supply Voltage Range | 4V to 5.5V |
