ATMEGA164A-CU Equivalent & Substitute Parts

Part Overview

The ATMEGA164A-CU is an 8-bit AVR microcontroller manufactured by Microchip Technology, designed for embedded applications requiring moderate processing capability and integrated peripherals. This device features 16KB of FLASH program memory, 1KB of RAM, and 512 bytes of EEPROM, operating across a wide voltage range of 1.8V to 5.5V. The part is currently in active production status with 953 units available in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct functional replacement in circuit designs.

Substiute Parts

ATMEGA164A-CU

Microchip TechnologyIn Stock: 982ATMEGA164A-CU Datasheet

Current PartRFQ

ATMEGA164PA-CU

AtmelIn Stock: 4823ATMEGA164PA-CU Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ATMEGA164A-CU are identified based on strict equivalence across the following critical parameters: core processor architecture (AVR), core size (8-Bit), clock speed (20MHz), program memory capacity and type (16KB FLASH), RAM capacity (1K x 8), EEPROM capacity (512 x 8), voltage supply range (1.8V ~ 5.5V), I/O count (32 pins), peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT), connectivity interfaces (I2C, SPI, UART/USART), data converter specifications (A/D 8x10b), operating temperature range (-40°C ~ 85°C), and package form factor (49-VFBGA 5x5 surface mount).

The ATMEGA164PA-CU meets all these criteria and qualifies as a parametric equivalent. Substitution is valid when the replacement part maintains identical electrical specifications and mechanical compatibility with the original design.

Parameter Comparison

Engineering Selection Recommendations

The ATMEGA164PA-CU is a valid parametric substitute for the ATMEGA164A-CU based on complete electrical and mechanical equivalence. Both devices maintain active product status and share identical core specifications across processor architecture, memory configuration, I/O capability, peripheral feature set, and package form factor.

The primary distinction between these parts is manufacturer lineage (Microchip Technology versus Atmel) and packaging format (Tray versus Bulk). Both manufacturers produce AVR ATmega devices to equivalent specifications. Selection between these parts should be based on supply chain availability, packaging requirements, and procurement preferences rather than functional capability differences.

Frequently Asked Questions (FAQ)

Q: Can ATMEGA164PA-CU directly replace ATMEGA164A-CU in existing circuit designs?

A: Yes. Both parts share identical electrical specifications including processor core, clock speed, memory capacity, I/O count, voltage range, and peripheral features. The 49-VFBGA (5x5) package pinout is equivalent, enabling direct substitution at the component level.

Q: What is the difference between ATMEGA164A-CU and ATMEGA164PA-CU?

A: The primary differences are manufacturer (Microchip Technology versus Atmel) and packaging format (Tray versus Bulk). All electrical and mechanical specifications are identical.

Q: Does packaging format affect substitution compatibility?

A: Packaging format (Tray versus Bulk) affects supply chain logistics and handling but does not impact electrical or mechanical compatibility. The component itself remains functionally identical.

Q: Are there compliance or certification differences between these parts?

A: Both parts carry identical compliance designations: RoHS3 Compliant, REACH Unaffected, ECCN EAR99, and HTSUS 8542.31.0001.

Q: What parameters must remain identical for substitution to be valid?

A: Core processor (AVR), core size (8-Bit), clock speed (20MHz), program memory (16KB FLASH), RAM (1K x 8), EEPROM (512 x 8), voltage range (1.8V ~ 5.5V), I/O count (32), connectivity (I2C, SPI, UART/USART), peripherals (Brown-out Detect/Reset, POR, PWM, WDT), data converters (A/D 8x10b), operating temperature (-40°C ~ 85°C), and package type (49-VFBGA 5x5).