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What is ST72321?

This electronic component, produced by the manufacturer "ST Microelectronics", performs the same function as "8-BIT MCU".


ST72321 Datasheet PDF - ST Microelectronics

Part Number ST72321
Description 8-BIT MCU
Manufacturers ST Microelectronics 
Logo ST Microelectronics Logo 


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ST72321
8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC,
FIVE TIMERS, SPI, SCI, I2C INTERFACE
s Memories
– 32K to 60K dual voltage High Density Flash
(HDFlash) or ROM with read-out protection
capability. In-Application Programming and
In-Circuit Programming for HDFlash devices
– 1K to 2K RAM
– HDFlash endurance: 100 cycles, data reten-
tion: 20 years at 55°C
s 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 os-
cillators, internal RC oscillator, clock security
system and bypass for external clock
– PLL for 2x frequency multiplication
– Four Power Saving Modes: Halt, Active-Halt,
Wait and Slow
s 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)
s Up to 48 I/O Ports
– 48/32 multifunctional bidirectional I/O lines
– 34/22 alternate function lines
– 16/12 high sink outputs
s 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 out-
put compares, external clock input on one tim-
er, PWM and pulse generator modes
– 8-bit PWM Auto-reload timer with: 2 input cap-
tures, 4 PWM outputs, output compare and
TQFP64
14 x 14
TQFP64
10 x 10
time base interrupt, external clock with event
detector
s 3 Communications Interfaces
– SPI synchronous serial interface
– SCI asynchronous serial interface (LIN com-
patible)
– I2C multimaster interface
s 1 Analog peripheral
– 10-bit ADC with up to 16 input pins
s Instruction Set
– 8-bit Data Manipulation
– 63 Basic Instructions
– 17 main Addressing Modes
– 8 x 8 Unsigned Multiply Instruction
s Development Tools
– Full hardware/software development package
– In-Circuit Testing capability
Device Summary
Features
Program memory - bytes
RAM (stack) - bytes
Operating Voltage
Temp. Range
Package
ST72321(R/AR/J)9
ST72321(R/AR/J)7
ST72321(R/AR)6
60K 48K
32K
2048 (256)
1536 (256)
1024 (256)
3.8V to 5.5V
up to -40°C to +125°C
TQFP64 14x14 (R), TQFP64 10x10 (AR), TQFP44 10x10 (J)
August 2003
Rev. 1.9
1/185
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ST72321 equivalent
Table of Contents
12.2 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
12.2.1 Voltage Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
12.2.2 Current Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
12.2.3 Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
12.3 OPERATING CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
12.3.1 General Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
12.3.2 Operating Conditions with Low Voltage Detector (LVD) . . . . . . . . . . . . . . . . . . . . 139
12.3.3 Auxiliary Voltage Detector (AVD) Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
12.3.4 External Voltage Detector (EVD) Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
12.4 SUPPLY CURRENT CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
12.4.1 RUN and SLOW Modes (Flash devices) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
12.4.2 WAIT and SLOW WAIT Modes (Flash devices) . . . . . . . . . . . . . . . . . . . . . . . . . . 142
12.4.3 RUN and SLOW Modes (ROM devices) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
12.4.4 WAIT and SLOW WAIT Modes (ROM devices) . . . . . . . . . . . . . . . . . . . . . . . . . . 143
12.4.5 HALT and ACTIVE-HALT Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
12.4.6 Supply and Clock Managers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
12.4.7 On-Chip Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
12.5 CLOCK AND TIMING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
12.5.1 General Timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
12.5.2 External Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
12.5.3 Crystal and Ceramic Resonator Oscillators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
12.5.4 RC Oscillators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
12.5.5 Clock Security System (CSS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
12.5.6 PLL Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
12.6 MEMORY CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
12.6.1 RAM and Hardware Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
12.6.2 FLASH Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
12.7 EMC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
12.7.1 Functional EMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
12.7.2 Electro Magnetic Interference (EMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
12.7.3 Absolute Electrical Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
12.7.4 ESD Pin Protection Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
12.8 I/O PORT PIN CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
12.8.1 General Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
12.8.2 Output Driving Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
12.9 CONTROL PIN CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
12.9.1 Asynchronous RESET Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
12.9.2 ICCSEL/VPP Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
12.10 TIMER PERIPHERAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
12.10.18-Bit PWM-ART Auto-Reload Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
12.10.216-Bit Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
12.11 COMMUNICATION INTERFACE CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . 162
12.11.1SPI - Serial Peripheral Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
12.11.2I2C - Inter IC Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
12.12 10-BIT ADC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
12.12.1Analog Power Supply and Reference Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
12.12.2General PCB Design Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
5/185
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