Microchip Technology AT89S4051-24SU Microcontroller, Microprocessor, FPGA Modules
IC MCU 8BIT 4KB FLASH 20SOIC
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
AT89S4051-24SU
Detailed Description
IC MCU 8BIT 4KB FLASH 20SOIC
Package
20-SOIC (0.295", 7.50mm Width)
Key Features
Package / Case: 20-SOIC (0.295", 7.50mm Width); Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
AT89S4051-24SU Datasheet
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Technical Specifications
Microchip Technology AT89S4051-24SU Microcontroller, Microprocessor, FPGA Modules technical specifications.
General
RAM Size
256 x 8
RoHS
Yes
Number of Pins
20
Package / Case
20-SOIC
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Active
Peripherals
Brown-out Detect/Reset, POR, PWM
Number of I/O
15
Alternate Parts Comparison (AT89S4051-24SU vs AT90S1200-4SI vs AT90S1200-12SI vs AT89C2051-12SU)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 20-SOIC | 20-SOIC | 20-SOIC | 20-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C (TA) |
| Supply Voltage | 2.7V ~ 5.5V | 2.7V ~ 6V | 4V ~ 6V | 2.7V ~ 6V |
| Core Processor | 8051 | AVR | AVR | 8051 |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Obsolete | Obsolete | Active |
| Connectivity | UART/USART | SPI | SPI | UART/USART |
| Number of I/O | 15 | 15 | 15 | 15 |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Package | SOIC-20 | 20-SOIC | 20-SOIC | SOIC-20 |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
MC9S08SF4MTJNXP SemiconductorsNXP
IC MCU 8BIT 4KB FLASH 20TSSOP
MC9S08SH4CWJNXP SemiconductorsNXP
IC MCU 8BIT 4KB FLASH 20SOIC
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