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Product Detailed Parameters
- Description：CMOS UART
- Series：-
- Mfr：Harris Corporation
- Package：Bulk
- Features：-
- Number of Channels：-
- FIFO's：-
- Protocol：-
- Data Rate (Max)：-
- Voltage - Supply：-
- With Auto Flow Control：-
- With IrDA Encoder/Decoder：-
- With False Start Bit Detection：-
- With Modem Control：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The HD1-6402C-9 is a CMOS Universal Asynchronous Receiver/Transmitter (UART) designed for interfacing microprocessors to asynchronous serial data channels. Manufactured by Harris Corporation, it utilizes the SAJI IV CMOS process to achieve low power consumption of approximately 10mW compared to 300mW in older technologies. The device supports clock frequencies up to 8.0MHz, enabling baud rates up to 500K Baud. It handles data word lengths of 5, 6, 7, or 8 bits with configurable odd or even parity and one or two stop bits.
Feature Summary
- CMOS UART architecture compatible with TTL and CMOS logic levels
- Integrated receiver for serial start, data, parity, and stop bit conversion
- Integrated transmitter for parallel-to-serial data conversion with automatic bit insertion
- Configurable parity checking and generation capabilities
Applications
- Modems
- Printers
- Peripherals
- Remote data acquisition systems
Procurement Notes
Verify the manufacturer origin carefully, as Harris Corporation's semiconductor assets were acquired by Intersil, which was subsequently acquired by Renesas Electronics. Confirm that the specific part number corresponds to the original Harris production run or an authorized successor specification. Ensure the component meets current environmental compliance standards such as RoHS if required for the application.
Selection Notes
Select this component when a low-power asynchronous serial interface is required for legacy microprocessor systems. The device is suitable for designs needing flexible data word lengths and parity options without external logic. Consider the maximum operating frequency of 8.0MHz to ensure compatibility with the system clock requirements.
Part Context
This component belongs to the HD-6402 series of UARTs developed by Harris Corporation. These devices were widely used in embedded systems before the prevalence of integrated MCU peripherals. The 'HD' prefix typically denotes Harris Digital products, while the suffix indicates speed grade and package variations within the CMOS UART family.
Replacement Considerations
Direct replacements may include the ICL6402 or HD6402 variants from Intersil or Renesas. For modern designs, consider migrating to contemporary UART controllers with similar pinouts or using FPGA-based soft cores if flexibility is prioritized over direct pin compatibility.
