ATMEGA16-16PC Equivalent & Substitute Parts

Part Overview

The ATMEGA16-16PC is an 8-bit AVR microcontroller manufactured by Microchip Technology, featuring 16KB of FLASH program memory, 1KB of RAM, and 512 bytes of EEPROM. This device operates at 16MHz with a 40-pin DIP package and supports multiple communication interfaces including I2C, SPI, and UART/USART. The ATMEGA16-16PC is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Core Processor	AVR
Core Size	8-Bit
Speed	16MHz
Program Memory Size	16KB (8K x 16)
Program Memory Type	FLASH
EEPROM Size	512 x 8
RAM Size	1K x 8
Voltage Supply (Vcc/Vdd)	4.5V ~ 5.5V
Number of I/O	32
Data Converters	A/D 8x10b
Connectivity	I2C, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Mounting Type	Through Hole
Package / Case	40-DIP (0.600", 15.24mm)
Oscillator Type	Internal

Substitute Part Grouping Explanation

Substitution of the ATMEGA16-16PC is determined by strict equivalence across the following critical parameters:

Core Architecture: AVR processor family
Memory Configuration: 16KB FLASH, 1KB RAM, 512 bytes EEPROM
Operating Frequency: 16MHz
Package Type: 40-pin DIP form factor
Voltage Supply Range: 4.5V to 5.5V
I/O Count: 32 pins
Peripheral Set: I2C, SPI, UART/USART, PWM, WDT, Brown-out Detect/Reset, POR
Data Conversion: 8-channel 10-bit ADC

The ATMEGA16-16PU qualifies as a direct substitute based on identical electrical specifications, memory configuration, and peripheral functionality. The primary distinction lies in packaging variant (PDIP vs. PDIP) and product status classification.

Parameter Comparison

Parameter	ATMEGA16-16PC	ATMEGA16-16PU	Match
Manufacturer	Microchip Technology	Atmel	Different Manufacturer
Core Processor	AVR	AVR	✓
Core Size	8-Bit	8-Bit	✓
Speed	16MHz	16MHz	✓
Program Memory Size	16KB (8K x 16)	16KB (8K x 16)	✓
Program Memory Type	FLASH	FLASH	✓
EEPROM Size	512 x 8	512 x 8	✓
RAM Size	1K x 8	1K x 8	✓
Voltage Supply (Vcc/Vdd)	4.5V ~ 5.5V	4.5V ~ 5.5V	✓
Number of I/O	32	32	✓
Data Converters	A/D 8x10b	A/D 8x10b	✓
Connectivity	I2C, SPI, UART/USART	I2C, SPI, UART/USART	✓
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	✓
Mounting Type	Through Hole	Through Hole	✓
Package / Case	40-DIP (0.600", 15.24mm)	40-DIP (0.600", 15.24mm)	✓
Oscillator Type	Internal	Internal	✓
Operating Temperature	0°C ~ 70°C (TA)	-40°C ~ 85°C (TA)	Extended Range
Product Status	Obsolete	Active	Different Status

Engineering Selection Recommendations

The ATMEGA16-16PU serves as the functional equivalent for the obsolete ATMEGA16-16PC. Both devices share identical electrical specifications, memory architecture, and peripheral configuration. The ATMEGA16-16PU maintains active product status with current manufacturing support, addressing the obsolescence constraint of the original part.

The ATMEGA16-16PU provides an extended operating temperature range (-40°C to 85°C) compared to the ATMEGA16-16PC (0°C to 70°C), offering broader environmental compatibility for applications requiring wider temperature operation.

Both parts comply with identical ECCN (EAR99) and HTSUS (8542.31.0001) classifications, maintaining regulatory consistency for procurement and export documentation.

Frequently Asked Questions (FAQ)

Q: Are ATMEGA16-16PC and ATMEGA16-16PU pin-compatible?

A: Yes. Both devices utilize the 40-pin DIP package with identical pinout configuration. Direct socket substitution is supported without circuit modification.

Q: What is the primary difference between these parts?

A: The ATMEGA16-16PC is classified as obsolete, while the ATMEGA16-16PU maintains active production status. The ATMEGA16-16PU also provides an extended operating temperature range (-40°C to 85°C versus 0°C to 70°C).

Q: Can the ATMEGA16-16PU replace the ATMEGA16-16PC in existing designs?

A: Yes. Electrical specifications, memory configuration, and peripheral functionality are identical. The extended temperature range of the ATMEGA16-16PU provides additional operational margin.

Q: Are there any compliance or certification differences?

A: Both parts share identical ECCN and HTSUS classifications. Regulatory compliance documentation remains consistent between the two devices.

Q: What inventory considerations apply to these parts?

A: The ATMEGA16-16PC is available in limited quantities (768 pcs) with obsolete status. The ATMEGA16-16PU maintains active inventory (1401 pcs) with ongoing manufacturing support, ensuring long-term availability for production requirements.

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