STMicroelectronics ST72F321AR9T3 Microcontroller, Microprocessor, FPGA Modules

Name: ST72F321AR9T3
Brand: STMicroelectronics
SKU: ST72F321AR9T3

IC MCU 8BIT 60KB FLASH 64LQFP

42,743STMicroelectronics64-LQFPRoHS

Same model may have multiple batches, images only for reference.

ST72F321AR9T3

Manufacturer

STMicroelectronics

Part Number (MPN)

ST72F321AR9T3

Technical Specifications

STMicroelectronics ST72F321AR9T3 Microcontroller, Microprocessor, FPGA Modules technical specifications.

General

RAM Size

2K x 8

Package / Case

64-LQFP

Mounting Type

Surface Mount

Operating Temperature

-40°C ~ 125°C (TA)

Supply Voltage

3.8V ~ 5.5V

Lifecycle Status

Obsolete

Peripherals

LVD, POR, PWM, WDT

Number of I/O

Speed

8MHz

Core Processor

ST7

Alternate Parts Comparison (ST72F321AR9T3 vs ST72F521R6TA vs STM32F405RGT6W vs STM32L100RBT6ATR)

Side-by-side technical parameter comparison of related primary models in this product family.

	This Part	Alternate Parts	Alternate Parts	Alternate Parts
	STMicroelectronicsST72F321AR9T3	STMicroelectronicsST72F521R6TA	STMicroelectronicsSTM32F405RGT6W	STMicroelectronicsSTM32L100RBT6ATR
Package / Case	64-LQFP	64-LQFP	64-LQFP	64-LQFP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Supply Voltage	3.8V ~ 5.5V	3.8V ~ 5.5V	1.8V ~ 3.6V	1.8V ~ 3.6V
Core Processor	ST7	ST7	ARM® Cortex®-M4	ARM® Cortex®-M3
Core Size	8-Bit	8-Bit	32-Bit Single-Core	32-Bit Single-Core
RAM Size	2K x 8	1K x 8	192K x 8	16K x 8
Lifecycle Status	Obsolete	Obsolete	Active	Active
Connectivity	I²C, SCI, SPI	CANbus, I²C, SCI, SPI	CANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB OTG	I²C, SPI, UART/USART, USB
Data Converters	A/D 16x10b SAR	A/D 16x10b	A/D 16x12b; D/A 2x12b	A/D 20x12b; D/A 2x12b
Number of I/O	48	48	51	51
Oscillator Type	Internal	Internal	Internal	Internal
Action	RFQ	RFQ	RFQ	RFQ

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

MC908GZ60MFUE NXP Semiconductors

NXP

IC MCU 8BIT 60KB FLASH 64QFP

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