Microchip AT89LP51ID2-20AAU Microcontrollers
IC MCU 8BIT 64KB FLASH 44LQFP
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
AT89LP51ID2-20AAU
Detailed Description
Advanced Microchip AT89LP51ID2-20AAU Microcontrollers for precision electronics.
Package
44-LQFP
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
AT89LP51ID2-20AAU Datasheet
Quick Jump:
Technical Specifications
Microchip AT89LP51ID2-20AAU Microcontrollers technical specifications.
General
Series
89LP
RAM Size
2.25K x 8
RoHS
Yes
Package / Case
44-LQFP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.4V ~ 5.5V
Lifecycle Status
Active
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O
40
Related Parts Comparison (AT89LP51ID2-20AAU vs AT80C51RD2T-RLTUM vs AT89C51RD2T-RLTUM vs AT89C51RC2-RLTUM)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Package / Case | 44-LQFP | 44-LQFP | 44-LQFP | 44-LQFP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 2.4V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Core Processor | 8051 | 80C51 | 80C51 | 80C51 |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| RAM Size | 2.25K x 8 | 1K x 8 | 2K x 8 | 1.25K x 8 |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Obsolete |
| Connectivity | EBI/EMI, I²C, SPI, UART/USART | UART/USART | SPI, UART/USART | SPI, UART/USART |
| Number of I/O | 40 | 32 | 34 | 32 |
| Oscillator Type | Internal | Internal | External | External |
| 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
MC9S08QE64CLDNXP SemiconductorsNXP
IC MCU 8BIT 64KB FLASH 44LQFP
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