Overview
The MC68230FN8 is a Parallel Interface/Timer (PI/T) integrated circuit developed by Motorola, now part of NXP Semiconductors. It combines flexible parallel I/O ports with timer functionality, making it suitable for a wide range of industrial and embedded applications. Designed for the 68000 microprocessor family, this IC simplifies interfacing with peripherals while providing precise timing control. Its versatility has led to adoption in legacy systems, though newer designs may use modern alternatives.
Structure and Working Principle
The MC68230FN8 features two 8-bit parallel ports (Port A and Port B) that can be configured as input or output. These ports support handshake modes for synchronized data transfer with peripheral devices. The integrated timer subsystem includes a 16-bit counter and multiple operating modes, including event counting and pulse generation. The device communicates with the host processor through an 8-bit data bus and uses memory-mapped I/O for configuration and data transfer.
Key Features
Programmable operating modes allow customization for specific applications. The parallel ports support simple I/O, strobed I/O, and bidirectional bus modes with handshake signals. The timer subsystem offers multiple functions including interval timing, event counting, and pulse width measurement. Interrupt capabilities reduce processor overhead by signaling when attention is required. The device operates across standard microprocessor voltage ranges and includes power-saving modes.
Application Areas
Industrial control systems utilize the MC68230FN8 for machine interfacing and process timing. Its reliability makes it suitable for harsh environments where precise timing is critical. In telecommunications equipment, the IC handles parallel data transfer between subsystems. Embedded systems benefit from its combination of I/O and timing functions in a single package. While newer designs may use more advanced ICs, the MC68230FN8 remains important for maintaining and upgrading legacy systems.
Maintenance and Precautions
Proper handling requires ESD protection measures during installation and maintenance. The device should be stored in anti-static packaging when not in use. Power supply voltages must remain within specified limits to prevent damage. When designing with this IC, consider signal integrity for timing-critical applications. For obsolete systems, proper documentation of the configuration is essential for future maintenance.
B2B Procurement Guide
When sourcing MC68230FN8 ICs, verify the manufacturing date and storage conditions, as this is a legacy component. New old stock (NOS) may be available from specialist distributors. Consider minimum order quantities and lead times, as availability may be limited. For high-reliability applications, request testing documentation. Alternative sources may include broker networks, but authenticity verification is crucial to avoid counterfeit components.
Related Manufacturers
- 主营：电源管理 IC、存储IC、单片机、控制器、驱动IC、传感器、稳压器、滤波器、电感、电容器、电阻器、二极管、三极管、晶闸管、连接器、场效应管、继电器
- 主营：tlc7135cn、max660epa、max232ese、mc14495p1、mc33166tv、hmc213ms8、cs5513bsz、max442csa、am29lv800、td62304af、74act125d、282080-1?、lx1994cld、max998esa、is61c1024、mm74c906n、d784031gc、adr421arm、ltc691csw、sn74hc374、转换器、gds1111ba、x5043s8t1、74hc595dr、ucn5810af
- 主营：tlc1543in、tl494cpwr、tl062ipwr、mc33079dt、hmc433etr、ep5358hui、cd4069ube、tl064cpwr、ts1854idt、ad8182arz、ad7856arz、传感器、nxp进口、l5150cjtr、tc4627coe、ad5552brz、tc4428epa、tpic6273n、ucc2891dr、tlc071cdr、siliconla、tl084cpwr、ad8541arz、uln2003an、连接器