Overview
The P89V664FBC,557 is an 80C51 microcontroller produced by NXP USA Inc. This device is part of the P89V660/662/664 family, designed to be drop-in and software-compatible replacements for earlier models. It features 64 kB of on-chip flash user code memory and 2 kB of data RAM, making it suitable for a variety of embedded system applications. The microcontroller supports both In-System Programming (ISP) and In-Application Programming (IAP), enhancing its flexibility and usability.
Key Specifications
| Specification | Value |
|---|---|
| Flash Memory | 64 kB |
| RAM | 2 kB |
| Operating Frequency | 0 MHz to 40 MHz (12x mode), 20 MHz (6x mode) |
| Package Type | TQFP44 (plastic thin quad flat package; 44 leads; body 10 × 10 × 1.0 mm) |
| I/O Ports | Four 8-bit I/O ports, one 4-bit I/O port |
| Interfaces | Dual 100 kHz byte-wide I2C-bus, SPI, enhanced UART |
| Timers/Counters | Three 16-bit timers/counters |
| PCA | Programmable Counter Array with PWM and Capture/Compare functions |
| WatchDog Timer | Yes |
| Interrupt Sources | Ten interrupt sources with four priority levels |
| Power Modes | Power-down mode with external interrupt wake-up |
Key Features
- Dual 100 kHz byte-wide I2C-bus interfaces
- 128-byte page erase for efficient use of code memory as non-volatile data storage
- SPI (Serial Peripheral Interface) and enhanced UART
- Programmable Counter Array (PCA) with PWM and Capture/Compare functions
- Three 16-bit timers/counters
- Four 8-bit I/O ports, one 4-bit I/O port
- WatchDog Timer (WDT)
- Low EMI mode (ALE inhibit)
- Power-down mode with external interrupt wake-up
- Second DPTR register
Applications
The P89V664FBC,557 microcontroller is suitable for a wide range of embedded system applications, including industrial control systems, medical devices, automotive systems, and consumer electronics. Its robust feature set, including dual I2C-bus interfaces, SPI, and enhanced UART, makes it an ideal choice for complex and data-intensive applications. Additionally, its low power consumption and power-down mode make it suitable for battery-powered devices.
Q & A
- What is the flash memory capacity of the P89V664FBC,557?
The P89V664FBC,557 has 64 kB of on-chip flash user code memory. - How much RAM does the P89V664FBC,557 have?
The device has 2 kB of data RAM. - What are the operating frequency ranges for the P89V664FBC,557?
The operating frequency ranges are 0 MHz to 40 MHz in 12x mode and 20 MHz in 6x mode. - What type of package does the P89V664FBC,557 come in?
The device comes in a TQFP44 package (plastic thin quad flat package; 44 leads; body 10 × 10 × 1.0 mm). - Does the P89V664FBC,557 support In-System Programming (ISP) and In-Application Programming (IAP)?
Yes, it supports both ISP and IAP. - What interfaces are available on the P89V664FBC,557?
The device features dual 100 kHz byte-wide I2C-bus interfaces, SPI, and an enhanced UART. - How many I/O ports does the P89V664FBC,557 have?
The device has four 8-bit I/O ports and one 4-bit I/O port. - Does the P89V664FBC,557 have a WatchDog Timer?
Yes, it includes a WatchDog Timer (WDT). - What is the purpose of the Programmable Counter Array (PCA) on the P89V664FBC,557?
The PCA supports PWM and Capture/Compare functions. - Can the P89V664FBC,557 operate in low power modes?
Yes, it has a power-down mode with external interrupt wake-up.
