| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 8 Pin |
| Case/Package | SOIC-8 |
| Supply Current | 12 mA |
| Number of Positions | 8 Position |
| Drivers Per Package | 1 |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 4.5V ~ 5.5V |
| Supply Voltage (Max) | 5.5 V |
| Supply Voltage (Min) | 4.5 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40℃ ~ 85℃ |
The DS89C21 is a differential CMOS line driver and receiver pair, designed to meet the requirements of TIA/EIA-422-A (RS-422) electrical characteristics interface standard. The DS89C21 provides one driver and one receiver in a minimum footprint. The device is offered in an 8-pin SOIC package.
●The CMOS design minimizes the supply current to 6 mA, making the device ideal for use in battery powered or power conscious applications.
●The driver features a fast transition time specified at 2.2 ns, and a maximum differential skew of 2 ns making the driver ideal for use in high speed applications operating above 10 MHz.
●The receiver can detect signals as low as 200 mV, and also incorporates hysteresis for noise rejection. Skew is specified at 4 ns maximum.
●The DS89C21 is compatible with TTL and CMOS levels (DI and RO).
TI
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* Meets TIA/EIA-422A (RS-422) and CCITT V.11 Recommendation * LOW POWER Design—15mW Typical * Guaranteed AC Parameters: * Maximum Driver Skew 2ns * Maximum Receiver Skew 4ns * Extended Temperature Range: −40℃ to +85℃ * Available in SOIC Packaging * Operates over 20Mbps * Receiver OPEN Input Failsafe Feature
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