AT89LP2052-16PU Equivalent & Substitute Parts

Part Overview

The AT89LP2052-16PU is an 8051-based 8-bit microcontroller manufactured by Microchip Technology, featuring 2KB of FLASH program memory, 256 bytes of RAM, and a 16MHz operating frequency. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part is housed in a 20-pin DIP package and operates across a supply voltage range of 2.4V to 5.5V with an operating temperature range of -40°C to 85°C.

Substiute Parts

AT89LP2052-16PU

Microchip TechnologyIn Stock: 2461AT89LP2052-16PU Datasheet

Current PartRFQ

AT89LP2052-20PU

Microchip TechnologyIn Stock: 1579AT89LP2052-20PU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AT89LP2052-16PU is determined by strict equivalence across the following critical parameters:

• Core processor architecture (8051)
• Core size (8-Bit)
• Program memory capacity (2KB FLASH)
• RAM capacity (256 x 8)
• I/O count (15 pins)
• Connectivity interfaces (SPI, UART/USART)
• Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT)
• Supply voltage range (2.4V ~ 5.5V)
• Operating temperature range (-40°C ~ 85°C)
• Package type (20-DIP)
• Mounting type (Through Hole)

The AT89LP2052-20PU qualifies as a direct substitute based on identical electrical and mechanical specifications, with the exception of operating frequency, which is increased to 20MHz. This higher frequency does not restrict substitution in applications designed for the 16MHz variant, as the device remains backward compatible at lower clock speeds.

Parameter Comparison

Engineering Selection Recommendations

The AT89LP2052-20PU is the direct substitute for the AT89LP2052-16PU. Both devices maintain identical electrical and mechanical specifications with full compatibility across all functional parameters. The primary distinction is product status: the AT89LP2052-16PU is obsolete, while the AT89LP2052-20PU is active and available in production quantities.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production continuity. The increased operating frequency of the AT89LP2052-20PU (20MHz versus 16MHz) provides enhanced performance capability without introducing any compatibility constraints for applications originally specified for the 16MHz variant.

Frequently Asked Questions (FAQ)

Q: Can the AT89LP2052-20PU directly replace the AT89LP2052-16PU in existing designs?

A: Yes. The AT89LP2052-20PU is electrically and mechanically equivalent to the AT89LP2052-16PU. All functional parameters, pin configurations, memory specifications, and peripheral features are identical. The 20MHz variant operates at a higher frequency but remains fully compatible with designs specified for 16MHz operation.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 20-DIP (0.300", 7.62mm) package with identical through-hole mounting specifications. Pinout and mechanical dimensions are identical.

Q: What is the significance of the product status difference?

A: The AT89LP2052-16PU is classified as obsolete, indicating it is no longer in active production. The AT89LP2052-20PU is active and available from Microchip Technology, ensuring supply continuity and support for ongoing production requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AT89LP2052-16PU and AT89LP2052-20PU are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Regulatory and environmental compliance is equivalent across both variants.

Q: Are there any performance implications when using the 20MHz variant in place of the 16MHz part?

A: The AT89LP2052-20PU operates at a higher maximum frequency, which does not restrict its use in applications designed for the 16MHz variant. Applications may operate the 20MHz part at reduced clock speeds without functional degradation.