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 Products > Analog - Interface > Data Transmission Circuits > RS-422/423 Line Drivers and Receivers > DS89C21

DS89C21  Product Folder

Differential CMOS Line Driver and Receiver Pair
Generic P/N 89C21
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing

Parametric Table Parametric Table
Temperature Min (deg C) -40 
Temperature Max (deg C) 85 
Drivers () 1 
Receivers () 1 
Supply Voltage (Volt) 5 
OtherSupply Voltage - 
Process CMOS 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
DS89C21 Differential CMOS Line Driver and Receiver Pair 78 Kbytes 12-Oct-98 View Online Download Receive via Email
DS89C21 Differential CMOS Line Driver and Receiver Pair (JAPANESE)
 175 Kbytes   View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
DS89C21TMSOIC NARROW8StatusFull productionN/Ads89c21tm.ibs24 Hour Samples
Buy Now 		1K+$1.00rail
of
95		NSXYTT
DS89C
21TM
3-5 weeks2000
DS89C21TMXSOIC NARROW8StatusFull productionN/AN/A 1K+$1.00reel
of
2500		NSXYTT
DS89C
21TM
3-5 weeks25000
DS89C21 MDAUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0

Obsolete Parts

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
DS89C21TN
DS8921N
NATIONAL SEMICONDUCTOR
09/08/98

General Description

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).

Features

  • Meets TIA/EIA-422-A (RS-422) and CCITT V.11 recommendation
  • LOW POWER design-15 mW typical
  • Guaranteed AC parameters:
    • Maximum driver skew 2.0 ns
    • Maximum receiver skew 4.0 ns
  • Extended temperature range: -40°C to +85°C
  • Available in SOIC packaging
  • Operates over 20 Mbps
  • Receiver OPEN input failsafe feature
[Information as of 15-Jan-2004]

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