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DS8921AM/NOPB
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Product Detailed Parameters
- Description：IC TRANSCEIVER FULL 1/1 8SOIC
- Mfr：Texas Instruments
- Package：Tube
- Series：-
- Type：Transceiver
- Protocol：RS422, RS485
- Number of Drivers/Receivers：1月1日
- Duplex：Full
- Data Rate：-
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Receiver Hysteresis：70 mV
- Grade：-
- Qualification：-
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Overview
The DS8921AM/NOPB is a differential line driver and receiver pair manufactured by Texas Instruments, housed in an SOIC-8 package. It operates on a single 5-V supply with a voltage range of 4.5 V to 5.5 V. The device supports data rates up to 10 Mb/s and features a typical propagation delay of 12 ns with an output skew of 0.5 ns. It provides complementary driver outputs and meets RS-422 standards. The unit draws 35 mA of operating current and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Provides high-speed differential signaling with low output skew for precise timing applications
- Supports extended common-mode input voltage ranges of ±7 V for robust noise immunity
- Incorporates receiver input hysteresis to improve signal integrity on slowly changing waveforms
Applications
- ST506 disk drive interface connections
- ST412 disk drive interface connections
- ESDI (Enhanced Small Device Interface) systems
- RS-422 communication links
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact temperature rating and packaging configuration. Confirm that the component matches the required industrial specifications before integration into the final design.
Selection Notes
Select this component when designing interfaces for legacy disk drive standards such as ST506 or ESDI. Ensure the application requires a single driver and receiver pair within an SOIC-8 footprint. Verify that the system operates within the specified 4.5 V to 5.5 V supply voltage constraints.
Part Context
This part belongs to the DS8921x family of differential transceivers designed for high-speed digital transmission. It serves as a bridge between TTL/CMOS logic levels and differential transmission lines, ensuring compatibility with various industry-standard disk drive protocols.
Replacement Considerations
DS8921ATM/NOPB
FAQ
What is the maximum common-mode input voltage supported by the receiver?
The receiver supports a common-mode input voltage range of ±7 V.
Does the DS8921AM/NOPB include a shutdown feature?
No, the device does not have a shutdown pin; it operates continuously when powered.
What is the typical receiver input sensitivity?
The receiver offers an input sensitivity of ±200 mV over the full common-mode operating range.
