Request Quote
(Ships tomorrow)
ATMEGA324P-15MZ Equivalent & Substitute Parts
Part Overview
The ATMEGA324P-15MZ is an 8-bit AVR microcontroller from Microchip Technology's ATmega series, featuring 32KB FLASH memory, 2KB RAM, and 1KB EEPROM. This device integrates 32 I/O pins, multiple communication interfaces (I2C, SPI, UART/USART), and operates at 16MHz with a supply voltage range of 2.7V to 5.5V. The part is qualified to AEC-Q100 automotive standards and complies with ROHS3 and REACH requirements.
The ATMEGA324P-15MZ is currently listed as obsolete. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring this microcontroller's specific feature set and performance characteristics.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Program Memory Size | 32KB (16K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 1K x 8 |
| RAM Size | 2K x 8 |
| Number of I/O | 32 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 44-VFQFN Exposed Pad |
| Grade | Automotive |
| Qualification | AEC-Q100 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution of the ATMEGA324P-15MZ is determined by strict equivalence across the following critical parameters:
- Core Architecture: AVR 8-bit processor
- Memory Configuration: 32KB FLASH, 2KB RAM, 1KB EEPROM
- Clock Speed: 16MHz operation
- I/O Count: 32 pins
- Supply Voltage Range: 2.7V ~ 5.5V
- Package Type: 44-VFQFN Exposed Pad (Surface Mount)
- Connectivity Interfaces: I2C, SPI, UART/USART
- Peripheral Set: Brown-out Detect/Reset, POR, PWM, WDT
- Data Conversion: A/D 8x10b
- Automotive Qualification: AEC-Q100
- Compliance Standards: ROHS3, REACH Unaffected
The ATMEGA324P-B15MZ meets all these parameters identically and serves as a direct parametric equivalent. The primary distinction is product status: the original part is obsolete, while the substitute is active in production.
Parameter Comparison
| Parameter | ATMEGA324P-15MZ | ATMEGA324P-B15MZ |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Core Processor | AVR | AVR |
| Core Size | 8-Bit | 8-Bit |
| Speed | 16MHz | 16MHz |
| Program Memory Size | 32KB (16K x 16) | 32KB (16K x 16) |
| Program Memory Type | FLASH | FLASH |
| EEPROM Size | 1K x 8 | 1K x 8 |
| RAM Size | 2K x 8 | 2K x 8 |
| Number of I/O | 32 | 32 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| 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 |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 44-VFQFN Exposed Pad | 44-VFQFN Exposed Pad |
| Grade | Automotive | Automotive |
| Qualification | AEC-Q100 | AEC-Q100 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The ATMEGA324P-B15MZ is the direct substitute for the obsolete ATMEGA324P-15MZ. Both parts share identical electrical specifications, memory configuration, I/O architecture, and package form factor. The substitute maintains full automotive qualification (AEC-Q100) and compliance certifications (ROHS3, REACH Unaffected).
Selection of the ATMEGA324P-B15MZ is appropriate for new designs and production continuity where the ATMEGA324P-15MZ is no longer available. The active product status of the substitute ensures ongoing supply chain availability and manufacturing support from Microchip Technology.
Frequently Asked Questions (FAQ)
Q: Can the ATMEGA324P-B15MZ directly replace the ATMEGA324P-15MZ in existing designs?
A: Yes. Both parts are electrically and mechanically identical across all specified parameters. No design modifications are required for PCB layout, firmware, or circuit operation.
Q: Are there differences in pin configuration or package dimensions?
A: No. Both parts use the 44-VFQFN Exposed Pad package with identical pin assignments and mechanical dimensions.
Q: Does the substitute maintain automotive qualification?
A: Yes. The ATMEGA324P-B15MZ carries AEC-Q100 qualification and meets the same compliance standards (ROHS3, REACH Unaffected) as the original part.
Q: What is the primary reason for substitution?
A: The ATMEGA324P-15MZ is obsolete. The ATMEGA324P-B15MZ is the active production equivalent from Microchip Technology, ensuring supply availability and manufacturing continuity.
Q: Are memory specifications identical between the two parts?
A: Yes. Both parts feature 32KB FLASH, 2KB RAM, and 1KB EEPROM with identical access characteristics and performance.
Q: Do both parts support the same communication interfaces?
A: Yes. Both parts integrate I2C, SPI, and UART/USART interfaces with identical functionality and electrical specifications.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts