Manufacturer Part Number
P89LPC921FDH
Manufacturer
Rochester Electronics
Introduction
8-bit microcontroller based on the 8051 core
Designed for low-power embedded applications
Product Features and Performance
4KB on-chip flash program memory
256 bytes of on-chip RAM
18 programmable I/O lines
On-chip oscillator with programmable clock
UART/USART interface
PWM, watchdog timer, and brown-out detection
Product Advantages
Low-power operation
Compact 20-TSSOP package
Wide operating temperature range (-40°C to 85°C)
Flash program memory for easy in-system programming
Key Technical Parameters
Operating voltage: 2.4V to 3.6V
Clock speed: 18MHz
Program memory size: 4KB
RAM size: 256 bytes
Quality and Safety Features
Integrated brown-out detection and reset
Power-on reset (POR) circuit
Compatibility
Designed to be compatible with the standard 8051 microcontroller architecture
Suitable for a wide range of embedded applications
Application Areas
Automotive electronics
Industrial control systems
Home appliances
Consumer electronics
Product Lifecycle
This product is still in active production and availability is good
Suitable replacement options or upgrades may be available from the manufacturer
Key Reasons to Choose This Product
Low-power operation for extended battery life
Compact package size for space-constrained designs
Wide operating temperature range for industrial and automotive applications
Flash program memory for easy in-system updates and customization
Integrated peripheral features for reduced system complexity
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