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ST72F321J9T3

ST72F321J9T3

ST72F321J9T3

STMicroelectronics

Microcontroller 44 Pin 4V TQFP

SOT-23

ST72F321J9T3 Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Package / Case TQFP
Surface MountYES
Number of Pins 44
JESD-609 Code e3
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 44
ECCN Code EAR99
Terminal Finish Matte Tin (Sn) - annealed
Max Operating Temperature125°C
Min Operating Temperature -40°C
Terminal Position QUAD
Terminal FormGULL WING
Peak Reflow Temperature (Cel) 260
Supply Voltage 4V
Terminal Pitch0.8mm
Time@Peak Reflow Temperature-Max (s) 30
Pin Count44
Temperature GradeAUTOMOTIVE
Interface I2C, SCI, SPI
Max Supply Voltage5.5V
Min Supply Voltage3.85V
Memory Size60kB
Power Dissipation-Max 500mW
Number of I/O 32
RAM Size 2kB
Memory TypeFLASH
uPs/uCs/Peripheral ICs Type MICROCONTROLLER
Bit Size 8
Frequency (Max) 8MHz
Watchdog TimerYes
Has ADC YES
DMA Channels NO
Data Bus Width 8b
PWM Channels YES
DAC Channels NO
Number of Timers/Counters 5
On Chip Program ROM Width 8
CPU Family ST72
Number of Programmable I/O 48
Length 10mm
Height Seated (Max) 1.6mm
Radiation HardeningNo
RoHS StatusRoHS Compliant
In-Stock:4842 items

ST72F321J9T3 Product Details

ST72F321J9T3 Overview


The package is TQFP-shaped. There are 32 I/Os. This device belongs to the MICROCONTROLLER uPs/uCs/Peripheral ICs category. IC Chip 44 has 44 terminations. 8-bits are used for its size. IC Chip has 4V volt supply outputs. With NO DMA channels, Microcontroller chip can handle large data transfers. 60kB is the size of the memory in the IC part. Devices work in YES PWM channels. On the chip, 44 pins are accessible. In total, there are 5 timers/counters on the device. The pin count is 44. There is an embedded the ST72 CPU family inside the device, which makes it a powerful device. There is FLASH memory on this piece of equipment. It has 48 Programmable Input/Output pins that can be programmed.

ST72F321J9T3 Features


TQFP package
Minimum temperature of -40°C


ST72F321J9T3 Applications


There are a lot of STMicroelectronics
ST72F321J9T3 Microcontroller applications.


  • Instrument control
  • Toys
  • Robots
  • Radio
  • Television
  • Heater/Fan
  • Calculator
  • Kindle
  • Christmas lights
  • 3D printers

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