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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 68PLCC
- Series：COP8™ 8S
- Mfr：National Semiconductor
- Package：Bulk
- Core Processor：COP8
- Core Size：8-Bit
- Speed：20MHz
- Connectivity：Microwire/Plus (SPI), UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：59
- Program Memory Size：32KB (32K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：1K x 8
- Voltage - Supply (Vcc/Vdd)：2.7V ~ 5.5V
- Data Converters：-
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：68-PLCC (24.23x24.23)
- Package / Case：68-LCC (J-Lead)
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Overview
The COP8SCR9LVA8 is an 8-bit CMOS Flash-based microcontroller from the COP8 family, manufactured by National Semiconductor. It features 32KB of FLASH memory and includes virtual EEPROM capabilities for data retention. The device operates with a maximum clock frequency of 10 MHz and integrates Brownout detection functionality. It utilizes a 68-PLCC package and supports Microwire/Plus (SPI) and UART/USART communication interfaces.
Feature Summary
- Integrates 32KB FLASH memory with virtual EEPROM support
- Includes hardware Brownout detection circuitry
- Supports Microwire/Plus and USART serial communication protocols
Applications
- Embedded control systems requiring non-volatile data storage
- Industrial devices utilizing serial communication interfaces
- Battery-operated equipment benefiting from low-power operation modes
Procurement Notes
Verify the manufacturer designation as National Semiconductor or Texas Instruments, as TI acquired NS. Confirm the specific suffix 'LVA8' corresponds to the 68-PLCC package and voltage range. Ensure RoHS compliance status matches current regulatory requirements. Check for obsolescence notices given the age of the COP8 architecture. Validate pin compatibility if replacing older variants within the COP8S series.
Selection Notes
Select this component when an 8-bit MCU with substantial on-chip FLASH and virtual EEPROM is required. The COP8 architecture is suitable for applications needing deterministic execution times. Consider the 68-PLCC package constraints for PCB layout. Verify that the 10 MHz maximum speed meets system timing requirements. Ensure interface needs align with available SPI and USART peripherals.
Part Context
This part belongs to the COP8SCR9 series, which are 8-bit CMOS microcontrollers designed for cost-sensitive embedded applications. The COP8 family is known for its Harvard architecture and efficient instruction set. The SCR9 variant specifically denotes the inclusion of significant memory resources and communication peripherals compared to base models.
Replacement Considerations
The COP8SCR9HVA8/NOPB is a documented equivalent offering similar specifications with potentially different voltage tolerances or packaging nuances. Verify electrical characteristics and pinout compatibility before substitution.
