Product Summary
The P87C51X2BA is an 8-bit microcontroller. The P87C51X2BA described in this data sheet is high-performance static 80C51 designs incorporating Philips high-density CMOS technology with operation from 2.7 V to 5.5 V. They support both 6-clock and 12-clock operation. The P87C51X2BA contains 128 byte RAM and 256 byte RAM respectively, 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 — are available. The idle mode freezes the CPU while allowing the RAM, timers, serial port, and interrupt system to continue functioning.
Parametrics
P87C51X2BA absolute maximum ratings: (1)Operating temperature under bias: -55 to +125 ℃; (2)Storage temperature range: -65 to +150 ℃; (3)Voltage on EA/VPP pin to VSS: 0 to + 13.0 V; (4)Voltage on any other pin to VSS: -0.5 to VDD+0.5V V; (5)Maximum IOL per I/O pin: 20 mA; (6)Power dissipation (based on package heat transfer, not device power consumption): 1.5 W.
Features
P87C51X2BA features: (1)PLCC, DIP, TSSOP or LQFP packages; (2)Extended temperature ranges; (3)Dual Data Pointers; (4)Encryption array - 64 bytes; (5)Four interrupt priority levels; (6)Six interrupt sources; (7)Four 8-bit I/O ports; (8)Full-duplex enhanced UART; (9)Three 16-bit timers/counters T0, T1 (standard 80C51)and; (10)additional T2 (capture and compare); (11)Programmable clock-out pin; (12)Asynchronous port reset; (13)Low EMI (inhibit ALE, slew rate controlled outputs, and 6-clock mode); (14)Wake-up from Power Down by an external interrupt.
Diagrams
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![]() 8-bit Microcontrollers (MCU) 4K/128 OTP 12/6 CLK COMM PLCC |
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![]() P87C51X2BA,512 |
![]() NXP Semiconductors |
![]() 8-bit Microcontrollers (MCU) 4K/128 OTP 12/6 CLK |
![]() Data Sheet |
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