|
Details, datasheet, quote on part number:SN54ABTE16246
| |
Datasheet text preview:
SN54ABTE16246, SN74ABTE16246 11-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS WITH 3-STATE AND OPEN-COLLECTOR OUTPUTS
SCBS227F JULY 1993 REVISED JUNE 1999
D D D D D D D D D D D
Members of the Texas Instruments Widebus TM Family State-of-the-Art EPIC-BTM BiCMOS Design Significantly Reduces Power Dissipation Support the VME64 ETL Specification Reduced TTL-Compatible Input Threshold Range High-Drive Outputs (IOH = 60 mA IOL = 90 mA) Support Equivalent 25- Incident-Wave Switching VCCBIAS Pin Minimizes Signal Distortion During Live Insertion Internal Pullup Resistor on OE Keeps Outputs in High-Impedance State During Power Up or Power Down Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise Equivalent 25- Series Damping Resistor on B Port Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors Package Options Include Plastic Shrink Small-Outline (DL) and Thin-Shrink Small-Outline (DGG) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings
SN54ABTE16246 . . . WD PACKAGE SN74ABTE16246 . . . DGG OR DL PACKAGE (TOP VIEW)
11OE 11DIR 11B GND 10B 9B VCC 8BI 8BO GND 7BO 6BI 6BO 5BO GND 4BO 4BI V CC 3BO 2BI GND 2BO 1BO 1BI
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
VCCBIAS 11A 10DIR GND 10A 9A VCC 9DIR 8A GND 7A 7BI 6A 5A GND 5BI 4A VC C 3A 3BI GND 2A 1A OE
description
The 'ABTE16246 devices are 11-bit noninverting transceivers designed for asynchronous two-way communication between buses. These devices have open-collector and 3-state outputs. They allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. When OE is low, the device is active. The B port has an equivalent 25- series output resistor to reduce ringing. Active bus-hold inputs on the B port hold unused or floating inputs at a valid logic level. The A port provides for the precharging of the outputs via VCCBIAS, which establishes a voltage between 1.3 V and 1.7 V when VCC is not connected. The SN54ABTE16246 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ABTE16246 is characterized for operation from 40°C to 85°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Widebus and EPIC-B are trademarks of Texas Instruments Incorporated.
UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303
Copyright © 1999, Texas Instruments Incorporated
· DALLAS, TEXAS 75265
1
SN54ABTE16246, SN74ABTE16246 11-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS WITH 3-STATE AND OPEN-COLLECTOR OUTPUTS
SCBS227F JULY 1993 REVISED JUNE 1999
FUNCTION TABLE INPUTS OE H L L L L L L L L 9DIR X X L H X X X X X 10DIR X X X X L H X X X 11DIR X X X X X X L L H 11OE X X X X X X L H X OPERATION Isolation 1BI8BI data to 1A8A bus (OC), 1A8A data to 1BO8BO bus 9A data to 9B bus 9B data to 9A bus 10A data to 10B bus 10B data to 10A bus 11A data to 11B bus 11A, 11B isolation 11B data to 11A bus
OC = Open-collector outputs
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54ABTE16246, SN74ABTE16246 11-BIT INCIDENT-WAVE SWITCHING BUS TRANSCEIVERS WITH 3-STATE AND OPEN-COLLECTOR OUTPUTS
SCBS227F JULY 1993 REVISED JUNE 1999
logic diagram (positive logic)
11OE 1
11DIR 11B
2 3 47 11A
OE
25
10DIR 10B
46 5 44 10A
9DIR 9B
41 6 43 9A
1BI
24
26
1A
1BO
23
To Seven Other Channels
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
|
|
