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ST72321RX Datasheet(PDF) 1 Page - STMicroelectronics |
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ST72321RX Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 193 page  March 2009 Rev 2 1/193 ST72321Rx ST72321ARx ST72321Jx 64/44-pin 8-bit MCU with 32 to 60K Flash/ROM, ADC, five timers, SPI, SCI, I2C interface Features ■ 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: 40 years at 85°C ■ Clock, Reset And Supply Management – Enhanced low voltage supervisor (LVD) for main supply and auxiliar voltage detector (AVD) with interrupt capability – Clock sources: crystal/ceramic resonator os- cillators, internal RC oscillator and bypass for external clock – PLL for 2x frequency multiplication – Four 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 – 15/9 external interrupt lines (on 4 vectors) ■ Up to 48 I/O Ports – 48/32/24 multifunctional bidirectional I/O lines – 34/22/17 alternate function lines – 16/12/10 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 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 time base interrupt, external clock with event detector ■ 3 Communications Interfaces – SPI synchronous serial interface – SCI asynchronous serial interface –I2C multimaster interface ■ 1 Analog peripheral – 10-bit ADC with up to 16 input ports ■ Instruction Set – 8-bit Data Manipulation – 63 Basic Instructions – 17 main Addressing Modes – 8 x 8 Unsigned Multiply Instruction ■ Development Tools – Full hardware/software development package – In-Circuit Testing capability Table 1. Device summary LQFP64 10 x 10 LQFP64 14 x 14 LQFP44 10 x 10 LQFP32 7 x 7 Features ST72321R9/ST72321AR9/ ST72321J9 ST72321R7/ST72321AR7/ ST72321J7 ST72321R6/ST72321AR6 Program memory - bytes Flash/ROM 60K Flash/ROM 48K Flash/ROM 32K RAM (stack) - bytes 2048 (256) 1536 (256) 1024 (256) Operating Voltage 3.8 to 5.5V Temp. Range -40 to +125°C, -40 to +85°C Package LQFP64 14x14 (R), LQFP64 10x10 (AR), LQFP44 10x10 (J) 1 |
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