Overview
The P89C668HFA/00,512 is a microcontroller from NXP USA Inc., although it is no longer in production. This 8-bit microcontroller is part of the 80C51 family and features a 64KB flash memory. It is packaged in a 44-pin PLCC (Plastic Leaded Chip Carrier) case. Despite being obsolete, it remains relevant for legacy systems and applications where compatibility with existing hardware is crucial.
Key Specifications
| Parameter | Value |
|---|---|
| Microcontroller Type | 8-bit |
| Flash Memory | 64KB |
| Package Type | 44-pin PLCC |
| Clock Speed | Up to 40 MHz |
| RAM | 256 bytes (internal) |
| I/O Pins | 32 |
| Operating Voltage | 4.5V to 5.5V |
| Operating Temperature | -40°C to 85°C |
Key Features
- High-speed 80C51 CPU with 40 MHz clock speed
- 64KB on-chip flash program memory
- 256 bytes of on-chip RAM
- 32 I/O lines (four 8-bit ports)
- Three 16-bit timers/counters
- Full-duplex UART
- PCA (Programmable Counter Array) with watchdog timer
- Low power modes: idle and power-down
Applications
The P89C668HFA/00,512 microcontroller is suitable for a variety of applications, including industrial control systems, consumer electronics, automotive systems, and embedded systems where an 8-bit microcontroller with significant flash memory and I/O capabilities is required. It is particularly useful in legacy systems where compatibility with the 80C51 architecture is necessary.
Q & A
- What is the P89C668HFA/00,512 microcontroller?
The P89C668HFA/00,512 is an 8-bit microcontroller from NXP USA Inc., featuring 64KB of flash memory and packaged in a 44-pin PLCC case. - Is the P89C668HFA/00,512 still in production?
No, the P89C668HFA/00,512 is no longer manufactured and has been discontinued by NXP Semiconductors. - What is the clock speed of the P89C668HFA/00,512?
The clock speed of the P89C668HFA/00,512 can go up to 40 MHz. - How much RAM does the P89C668HFA/00,512 have?
The P89C668HFA/00,512 has 256 bytes of internal RAM. - What is the operating voltage range of the P89C668HFA/00,512?
The operating voltage range is from 4.5V to 5.5V. - What are the key features of the P89C668HFA/00,512?
Key features include a high-speed 80C51 CPU, 64KB on-chip flash, 256 bytes of RAM, 32 I/O lines, three 16-bit timers/counters, a full-duplex UART, and a PCA with watchdog timer. - What are some common applications for the P89C668HFA/00,512?
Common applications include industrial control systems, consumer electronics, automotive systems, and embedded systems requiring an 8-bit microcontroller. - What package type does the P89C668HFA/00,512 use?
The P89C668HFA/00,512 is packaged in a 44-pin PLCC (Plastic Leaded Chip Carrier) case. - What is the operating temperature range of the P89C668HFA/00,512?
The operating temperature range is from -40°C to 85°C. - Are there any substitutes available for the P89C668HFA/00,512?
Yes, NXP and other distributors offer similar microcontrollers as substitutes for the discontinued P89C668HFA/00,512.
