ST72321R6-Auto:8-bit MCU for automotive with 32 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces

The ST72321xx-Auto Flash and ROM devices are members of the ST7 microcontroller family designed for mid-range automotive applications running from 3.8 to 5.5V.

All devices are based on a common industry-standard 8-bit core, featuring an enhanced instruction set and are available with Flash program memory. The ST7 family architecture offers both power and flexibility to software developers, enabling the design of highly efficient and compact application code.

The on-chip peripherals include an A/D converter, a PWM autoreload timer, two general purpose timers, I2C, SPI, SCI interfaces.

For power economy, the microcontroller can switch dynamically into Wait, Slow, Active Halt or Halt mode when the application is in idle or standby state.

Key Features

  • Memories
    • 32 to 60 Kbyte dual voltage High Density Flash (HDFlash) or ROM ROM with readout protection capability. In-application programming and in-circuit programming for HDFlash devices
    • 1 to 2 Kbyte RAM
    • HDFlash endurance: 100 cycles, data retention 20 years
  • Clock, reset and supply management
    • Enhanced low voltage supervisor (LVD) for main supply and auxiliary voltage detector (AVD) with interrupt capability
    • Clock sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
    • PLL for 2x frequency multiplication
    • 4 power saving modes: Halt, Active Halt, Wait and Slow
  • Interrupt management
    • Nested interrupt controller
    • 14 interrupt vectors plus TRAP and RESET
    • Top Level Interrupt (TLI) pin on 64-pin devices
    • 15 external interrupt lines (on 4 vectors)
  • 1 analog peripheral
    • 10-bit ADC with up to 16 input ports
  • Up to 48 I/O ports
    • 48//32 multifunctional bidirectional I/O lines
    • 34//22 alternate function lines
    • 16//12 high sink outputs
  • 5 timers
    • Main clock controller with Real-time base, Beep and Clock-out capabilities
    • Configurable watchdog timer
    • Two 16-bit timers with 2 input captures, 2 output compares, external clock input on 1 timer, PWM and pulse generator modes
    • 8-bit PWM auto-reload timer with 2 input captures, 4 PWM outputs, output compare and time base interrupt, external clock with event detector
  • 3 communications interfaces
    • SPI synchronous serial interface
    • SCI asynchronous serial interface
    • I2 C multimaster interface
  • Instruction set
    • 8-bit data manipulation
    • 63 basic instructions
    • 17 main addressing modes
    • 8x8 unsigned multiply instruction
  • Development tools
    • Full hardware/software development package, ICT capability
产品规格
DescriptionVersionSize
DS5430: 8-bit MCU for automotive with 32/60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C interface1.12 MB
应用手册
DescriptionVersionSize
AN2615: A high precision, low cost, single supply ADC for positive and negative input voltages1.2523 KB
AN1709: EMC design guide for ST microcontrollers2.0843 KB
AN1181: Electrostatic discharge sensitivity measurement1.649 KB
AN971: I2C communication between ST7 and M24CXX EEPROM1.668 KB
AN900: Introduction to semiconductor technology1.4782 KB
AN1131: Migrating applications from ST72511/311/314/124 to ST72521/321/3241.4210 KB
AN886: Selecting between ROM, FASTROM and OTP for a microcontroller1.3124 KB
AN2614: Serial numbering implementation1.2122 KB
AN1504: Starting a PWM signal directly at high level using the ST7 16-bit timer1.4170 KB
AN1636: Understanding and minimising ADC conversion errors1.4406 KB
Technical Notes & Articles
DescriptionVersionSize
TN1163: Description of WLCSP for microcontrollers and recommendations for its use4.01 MB
Hardware Development Tools
型号制造商Description
ST7-D/RAISSTMicroelectronics;RaisonanceST7 MCU daughter board for use with Raisonance REva starter kits
STX-RLINKRaisonanceIn-circuit debugger/programmer for STM8, ST7, STM32, STR7 and STR9 microcontrollers
样片和购买
型号QuantityUnit Price (US$) *PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)ECCN (EU)ECCN (US)Country of Origin
ST72F321R6TCS--LQFP 64 14x14x1.4Tray--NECEAR99MALAYSIA
ST72F321R6TAS--LQFP 64 14x14x1.4Tray--NECEAR99MALAYSIA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
ST72F321R6TCSLQFP 64 14x14x1.4AutomotiveEcopack2
ST72F321R6TASLQFP 64 14x14x1.4AutomotiveEcopack2
8-bit MCU for automotive with 32/60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C interface ST72321AR6-AUTO
circuit_diagram_13829_thumbnail.png ST72321AR6-AUTO
A high precision, low cost, single supply ADC for positive and negative input voltages ST72361K9-AUTO
EMC design guide for ST microcontrollers STM8L101G3
Electrostatic discharge sensitivity measurement STM8L101G3
I2C communication between ST7 and M24CXX EEPROM STSW-ST7098
Introduction to semiconductor technology ST72521AR9-AUTO
Migrating applications from ST72511/311/314/124 to ST72521/321/324 ST72321BJ6
Selecting between ROM, FASTROM and OTP for a microcontroller STR910FAW32
Serial numbering implementation ST72361K9-AUTO
Starting a PWM signal directly at high level using the ST7 16-bit timer ST7-EMU3
Understanding and minimising ADC conversion errors ST72264G1
Description of WLCSP for microcontrollers and recommendations for its use STM8L101G3