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ST72321BXXX-AUTO Datasheet(PDF) 1 Page - STMicroelectronics |
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ST72321BXXX-AUTO Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 247 page  October 2007 Rev 1 1/247 1 ST72321Bxxx-Auto 8-bit MCU for automotive with 32 to 60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C interface Features Memories ■ 32 to 60 Kbyte dual voltage High Density Flash (HDFlash) 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 ■ 15/9 external interrupt lines (on 4 vectors) 1 analog peripheral (low current coupling) ■ 10-bit ADC with up to 16 input ports 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 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 ■ I2C multimaster interface Development tools ■ Full HW/SW development pkg, ICT capability LQFP64 10 x 10 LQFP64 14 x 14 LQFP44 10 x 10 Table 1. Device summary Device Prog. memory RAM (stack) Oper. voltage Temp. range Package ST72321BR9-Auto Flash/ROM 60 Kbytes 2048 (256) bytes 3.8 to 5.5V Up to -40 to 125°C LQFP64 14x14 ST72321BAR9-Auto 10x10 ST72321BJ9-Auto LQFP44 10x10 ST72321BR7-Auto Flash/ROM 48 Kbytes 1536 (256) bytes LQFP64 14x14 ST72321BAR7-Auto 10x10 ST72321BJ7-Auto LQFP44 10x10 ST72321BR6-Auto Flash/ROM 32 Kbytes 1024 (256) bytes LQFP64 14x14 ST72321BAR6-Auto 10x10 ST72321BJ6-Auto LQFP44 10x10 www.st.com |
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