P87C52X2BA,512
数据手册.pdfNXP P87C52X2BA,512 微控制器, 8位, 一次性可编程, P8xC52X2, 33 MHz, 8 KB, 256 Byte, 44 引脚, LCC
The is a 8-bit Microcontroller based on high-performance static 80C51 designs incorporating high-density CMOS technology. The device support both 6-clock and 12-clock operation. The device contain 256 byte RAM, 32 I/O lines, three 16-bit counter/timers, a six-source, four-priority level nested interrupt structure, a serial I/O port for either multi-processor communications, I/O expansion or full duplex UART and on-chip oscillator and clock circuits. In addition, the devices are low power static designs which offer a wide range of operating frequencies down to zero. Two software selectable modes of power reduction idle mode and power-down mode. The idle mode freezes the CPU while allowing the RAM, timers, serial port and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative.
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- 80C51 Central processing unit
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- 12 Clock operation with selectable 6-clock operation
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- Memory addressing capability - Up to 64kB ROM and 64kB RAM
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- Clock can be stopped and resumed
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- Idle mode
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- Power-down mode
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- CMOS and TTL compatible
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- 2 Speed ranges at VCC = 5V - 0 to 30MHz with 6-clock operation, 0 to 33MHz with 12-clock operation
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- Dual data pointers
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- Security bits - ROM 2 bits, OTP 3 bits
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- Encryption array - 64 bytes
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- Four interrupt priority levels
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- Six interrupt sources
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- Four 8-bit I/O ports
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- Full-duplex enhanced UART
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- Three 16-bit timers/counters T0, T1 standard 80C51 and additional T2 capture and compare
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- Programmable clock-out pin
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- Asynchronous port reset
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- Low EMI inhibit ALE, slew rate controlled outputs and 6-clock mode
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- Wake-up from Power Down by an external interrupt