Microchip Technology AT89LP428-20PU Microcontroller, Microprocessor, FPGA Modules
IC MCU 8BIT 4KB FLASH 28DIP
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
AT89LP428-20PU
Detailed Description
IC MCU 8BIT 4KB FLASH 28DIP
Package
28-DIP (0.300", 7.62mm)
Key Features
Package / Case: 28-DIP (0.300", 7.62mm); Mounting Type: Through Hole
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
AT89LP428-20PU Datasheet
Quick Jump:
Technical Specifications
Microchip Technology AT89LP428-20PU Microcontroller, Microprocessor, FPGA Modules technical specifications.
General
RAM Size
768 x 8
RoHS
Yes
Package / Case
28-DIP
Mounting Type
Through Hole
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
30
Speed
20MHz
Alternate Parts Comparison (AT89LP428-20PU vs PIC16C57-10I/SP vs PIC16LC57C-04I/SP vs PIC16C57-10/SP)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 28-DIP | 28-DIP | 28-DIP | 28-DIP |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 0°C ~ 70°C (TA) |
| Supply Voltage | 2.4V ~ 5.5V | 4.5V ~ 5.5V | 2.5V ~ 5.5V | 4.5V ~ 5.5V |
| Core Processor | 8051 | PIC | PIC | PIC |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| RAM Size | 768 x 8 | 72 x 8 | 72 x 8 | 72 x 8 |
| Number of I/O | 30 | 20 | 20 | 20 |
| Oscillator Type | Internal | External | External | External |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | POR, WDT | POR, WDT | POR, WDT |
| Program Memory Size | 4KB (4K x 8) | 3KB (2K x 12) | 3KB (2K x 12) | 3KB (2K x 12) |
| Program Memory Type | Flash | OTP | OTP | OTP |
| 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
MC9S08PA4VWJNXP SemiconductorsNXP
IC MCU 8BIT 4KB FLASH 20SOIC
MC9S08QA4CDNENXP SemiconductorsNXP
IC MCU 8BIT 4KB FLASH 8SOIC
More Parts in Microcontrollers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
