Реферат: Устройство цифровой записи речи цифровой диктофон

– Programming Lock for Software Security

• Peripheral Features

– 8-channel, 10-bit ADC

– Programmable UART

– Master/Slave SPI Serial Interface

– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode

– One 16-bit Timer/Counter with Separate Prescaler, Compare and Capture Modes and Dual 8-, 9-, or 10-bit PWM

– Programmable Watchdog Timer with On-chip Oscillator

– On-chip Analog Comparator

• Special Microcontroller Features

– Power-on Reset Circuit

– Real-time Clock (RTC) with Separate Oscillator and Counter Mode

– External and Internal Interrupt Sources

– Three Sleep Modes: Idle, Power Save and Power-down

• Power Consumption at 4 MHz, 3V, 20°C

– Active: 6.4 mA

– Idle Mode: 1.9 mA

– Power-down Mode: <1 µA

• I/O and Packages

– 32 Programmable I/O Lines

– 40-lead PDIP, 44-lead PLCC, 44-lead TQFP, and 44-pad MLF

• Operating Voltages

– VCC: 4.0 - 6.0V AT90S8535

– VCC: 2.7 - 6.0V AT90LS8535

• Speed Grades:

– 0 - 8 MHz for the AT90S8535

– 0 - 4 MHz for the AT90LS8535

Pin Descriptions

VCC Digital supply voltage.