NXP Semiconductors 80C554
the 80C51 microcontroller family. The 87C554 has the same instruction set as the 80C51. For systems that require extra capability, the 8xC554 can be expanded using standard TTL compatible memories and logic.| Part No. | 80C554 |
|---|---|
| Datasheet | 80C554 Download |
| Manufacturer |  NXP Semiconductors |
| Description | 80C51 8-bit microcontroller |
| Buy | Stock & Price |
DESCRIPTION
This data sheet describes the 6 clock version of the 8xC554. This device is only available in 64L LQFP. The 8xC554 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. Three versions of the derivative exist:● 80C51 central processing unit
● 16k × 8 EPROM expandable externally to 64k bytes
● An additional 16-bit timer/counter coupled to four capture registers and three compare registers
FEATURES
● 83C554—16k bytes ROM● 80C554—ROMless version
● 87C554—16k bytes EPROM The 87C554 contains a 16k × 8 non-volatile EPROM, a 512 × 8 read/write data memory, five 8-bit I/O ports, one 8-bit input port, two 16-bit timer/event counters (identical to the timers of the 80C51), an additional 16-bit timer coupled to capture and compare latches, a 15-source, four-priority-level, nested interrupt structure, an 7-input ADC, a dual DAC pulse width modulated interface, two serial interfaces (UART and I2C-bus), a “watchdog” timer and on-chip oscillator and timing circuits.
