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Part Number: P87C51X2
Description: The Philips microcontrollers described in this data sheet are high-performance static 80C51 designs incorporating Phili...
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P87C51X2
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General Description
P87C51X2 General Description
The Philips microcontrollers described in this data sheet are 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 P8xC31X2/51X2 and P8xC32X2/52X2/54X2/58X2 contain 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 softwareselectable 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. The power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative. Since the design is static, the clock can be stopped without loss of user data. Then the execution can be resumed from the point the clock was stopped.
P87C51X2 Maximum Ratings
| PARAMETER | RATING | UNIT |
| Operating temperature under bias | 0 to +70 or 40 to +85 | |
| Storage temperature range | 65 to +150 | |
| Voltage on EA/VPP pin to VSS | 0 to +13.0 | V |
| Voltage on any other pin to VSS | 0.5 to +6.5 | V |
| Maximum IOL per I/O pin | 15 | mA |
| Power dissipation (based on package heat transfer limitations, not device power consumption) | 1.5 | W |
NOTES:
1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any conditions other than those described in the AC and DC Electrical Characteristics section of this specification is not implied.
2. This product includes circuitry specifically designed for the protection of its internal devices from the damaging effects of excessive static charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying greater than the rated maximum.
3. Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to VSS unless otherwise noted.
P87C51X2 Features
*80C51 Central Processing Unit
4 kbytes ROM/EPROM (P80/P87C51X2)
8 kbytes ROM/EPROM (P80/P87C52X2)
16 kbytes ROM/EPROM (P80/P87C54X2)
32 kbytes ROM/EPROM (P80/P87C58X2)
128 byte RAM (P80/P87C51X2 and P80C31X2)
256 byte RAM (P80/P87C52/54X2/58X2 and P80C32X2)
Boolean processor
Fully static operation
Low voltage (2.7 V to 5.5 V at 16 MHz) operation
*12-clock operation with selectable 6-clock operation (via software or via parallel programmer)
*Memory addressing capability
Up to 64 kbytes ROM and 64 kbytes RAM
*Power control modes:
Clock can be stopped and resumed
Idle mode
Power-down mode
*CMOS and TTL compatible
*Two speed ranges at VCC = 5 V
0 to 30 MHz with 6-clock operation
0 to 33 MHz with 12-clock operation
*PLCC, DIP, TSSOP or LQFP packages
*Extended temperature ranges
*Dual Data Pointers
*Security bits:
ROM (2 bits)
OTP (3 bits)
*Encryption array - 64 bytes
*Four interrupt priority levels
*Six interrupt sources
*Four 8-bit I/O ports
*Full-duplex enhanced UART
Framing error detection
Automatic address recognition
*Three 16-bit timers/counters T0, T1 (standard 80C51) and additional T2 (capture and compare)
*Programmable clock-out pin
*Asynchronous port reset
*Low EMI (inhibit ALE, slew rate controlled outputs, and 6-clock mode)
*Wake-up from Power Down by an external interrupt.
4 kbytes ROM/EPROM (P80/P87C51X2)
8 kbytes ROM/EPROM (P80/P87C52X2)
16 kbytes ROM/EPROM (P80/P87C54X2)
32 kbytes ROM/EPROM (P80/P87C58X2)
128 byte RAM (P80/P87C51X2 and P80C31X2)
256 byte RAM (P80/P87C52/54X2/58X2 and P80C32X2)
Boolean processor
Fully static operation
Low voltage (2.7 V to 5.5 V at 16 MHz) operation
*12-clock operation with selectable 6-clock operation (via software or via parallel programmer)
*Memory addressing capability
Up to 64 kbytes ROM and 64 kbytes RAM
*Power control modes:
Clock can be stopped and resumed
Idle mode
Power-down mode
*CMOS and TTL compatible
*Two speed ranges at VCC = 5 V
0 to 30 MHz with 6-clock operation
0 to 33 MHz with 12-clock operation
*PLCC, DIP, TSSOP or LQFP packages
*Extended temperature ranges
*Dual Data Pointers
*Security bits:
ROM (2 bits)
OTP (3 bits)
*Encryption array - 64 bytes
*Four interrupt priority levels
*Six interrupt sources
*Four 8-bit I/O ports
*Full-duplex enhanced UART
Framing error detection
Automatic address recognition
*Three 16-bit timers/counters T0, T1 (standard 80C51) and additional T2 (capture and compare)
*Programmable clock-out pin
*Asynchronous port reset
*Low EMI (inhibit ALE, slew rate controlled outputs, and 6-clock mode)
*Wake-up from Power Down by an external interrupt.
P87C51X2 Connection Diagram
P87C51X2
PDF/DataSheet Download
- Datasheet: P87C51X2
- File Size: 416031 KB
- Manufacturer: PHILIPS [Philips Semiconductors]
- Click here to Download
- ·P873-13
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- ·P873G35-201B
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- ·P873G35-552
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- ·P873G35-687
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- ·P873G35-911
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