Product Summary

The P87C51RD2BA is a Single-Chip 8-Bit Microcontrollers manufactured in an advanced CMOS process and are derivatives of the 80C51 microcontroller family. The instruction set is 100% compatible with the P87C51RD2BA instruction set. The P87C51RD2BA supports 6-clock/12-clock mode selection by programming an OTP bit (OX2) using parallel programming. In addition, an SFR bit (X2) in the clock control register (CKCON) also selects between 6-clock/12-clock mode. The devices also have four 8-bit I/O ports, three 16-bit timer/event counters, a multi-source, four-priority-level, nested interrupt structure, an enhanced UART and on-chip oscillator and timing circuits.

Parametrics

P87C51RD2BA absolute maximum ratings: (1)Operating temperature under bias: 0 to +70 or -40 to +85 ℃; (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 +6.5 V; (5)Maximum IOL per I/O pin: 15 mA; (6)Power dissipation (based on package heat transfer limitations, not device power consumption): 1.5 W.

Features

P87C51RD2BA features: (1)CMOS and TTL compatible; (2)Two speed ranges at VCC = 5 V 0 to 30 MHz with 6-clock operation, 0 to 33 MHz with 12-clock operation; (3)Parallel programming with 87C51 compatible hardware interface to programmer; (4)RAM expandable externally to 64 kbytes; (5)Programmable Counter Array (PCA)PWM, Capture/compare; (6)PLCC, LQFP, or DIP package; (7)Extended temperature ranges; (8)Dual Data Pointers; (9)Security bits (3 bits); (10)Encryption array - 64 bytes; (11)Seven interrupt sources; (12)4 interrupt priority levels; (13)Four 8-bit I/O ports.

Diagrams

P87C51RD2BA pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
P87C51RD2BA,512
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Data Sheet

0-840: $2.76
840-1000: $2.41
1000-2000: $2.32
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