DS8925
DS8925 is LocalTalk Dual Driver/Triple Receiver manufactured by National Semiconductor.
Description
The DS8925 is a dual driver/triple receiver device optimized to provide a single chip solution for a Local Talk Interface. The device provides one differential TIA/EIA-422 driver, one TIA/EIA-423 single ended driver, one TIA/EIA-422 receiver and two TIA/EIA-423 receivers, all in a surface mount 16 pin package. This device is electrically similar to the 26LS30 and 26LS32 devices. The drivers feature
± 10V mon mode range, and the differential driver provides TRI-STATEable outputs. The receivers offer ± 200 m V thresholds over the ± 10V mon mode range.
Features n n n n n n Single chip solution for Local Talk port Two driver/three receivers per package Wide mon mode range: ± 10V ± 200 m V receiver sensitivity 70 m V typical receiver input hysteresis Available in SOIC packaging
Connection Diagram
Dual-In-Line Package
Functional Diagram
DS011895-1
Order Number DS8925M See NS Package Number M16A
DS011895-2
TRI-STATE ® is a registered trademark of National Semiconductor Corporation. Local Talk™ is a trademark of Apple puter Incorporated.
© 1998 National Semiconductor Corporation
DS011895
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VCC) Supply Voltage (VEE) Enable Input Voltage (DEN1) Driver Input Voltage (DIN) Driver Output Voltage (Power Off: DOUT) Receiver Input Voltage (VID: RIN+
- RIN- ) Receiver Input Voltage (VCM: (RIN+ + RIN- )/2) Receiver Input Voltage (Input to GND: RIN) Receiver Output Voltage (ROUT) Maximum Package Power Dissipation @ +25˚C M Package +7V
- 7V +7V +7V ± 15V
Derate M Package 10.6 m W/˚C above +25˚C Storage Temperature Range Lead Temperature Range (Soldering, 4 Sec.) This Device Does Not Meet 2000V ESD Rating
- 65˚C to +150˚C +260˚C (Note 7)
Remended Operating Conditions
Supply Voltage (VCC) Supply Voltage (VEE) Operating Free Air Temperature (TA) Min +4.75
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