ST72321J7-Auto STMicroelectronics, ST72321J7-Auto Datasheet - Page 10
ST72321J7-Auto
Manufacturer Part Number
ST72321J7-Auto
Description
8-bit MCU for automotive with 48 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
Manufacturer
STMicroelectronics
Datasheet
1.ST72321R9-AUTO.pdf
(243 pages)
Specifications of ST72321J7-Auto
Hdflash Endurance
100 cycles, data retention 20 years
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
4 Power Saving Modes
Halt, Active Halt, Wait and Slow
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Contents
20
21
22
10/243
19.10 Timer peripheral characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
19.11 Communication interface characteristics . . . . . . . . . . . . . . . . . . . . . . . . 211
19.12 10-bit ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Package characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
20.1
20.2
20.3
Device configuration and ordering information . . . . . . . . . . . . . . . . . 223
21.1
21.2
21.3
21.4
Known limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
22.1
19.9.2
19.11.1 SPI (serial peripheral interface) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
19.11.2 I
19.12.1 Analog power supply and reference pins . . . . . . . . . . . . . . . . . . . . . . . 217
19.12.2 General PCB design guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
19.12.3 ADC accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Ecopack information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Packaging for automatic handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Flash devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
21.1.1
21.1.2
ROM device ordering information and transfer of customer code . . . . . 227
Development tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
21.3.1
21.3.2
21.3.3
21.3.4
21.3.5
ST7 application notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
All Flash and ROM devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
22.1.1
22.1.2
22.1.3
22.1.4
22.1.5
22.1.6
ICCSEL/V
Flash configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Flash ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Evaluation tools and starter kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Development and debugging tools . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Programming tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Socket and emulator adapter information . . . . . . . . . . . . . . . . . . . . . . 232
External RC option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Safe connection of OSC1/OSC2 pins . . . . . . . . . . . . . . . . . . . . . . . . . 234
Reset pin protection with LVD enabled . . . . . . . . . . . . . . . . . . . . . . . . 234
Unexpected reset fetch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
External interrupt missed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Clearing active interrupts outside interrupt routine . . . . . . . . . . . . . . . 238
2
C - inter IC control interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
PP
Doc ID 13829 Rev 1
pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
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