 |
 |
|
| SN54ABT2952A |
|
|||||||||||||||||
 TI
|
| |||||||||||||||||
|
1 page 
SN54ABT2952A, SN74ABT2952A OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCBS203D – AUGUST 1992 – REVISED JANUARY 1998 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D State-of-the-Art EPIC-ΙΙB™ BiCMOS Design Significantly Reduces Power Dissipation D Two 8-Bit Back-to-Back Registers Store Data Flowing in Both Directions D Noninverting Outputs D Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C D Latch-Up Performance Exceeds 500 mA Per JESD 17 D ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) D Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), Ceramic Flat (W) Package, and Plastic (NT) and Ceramic (JT) DIPs description The ’ABT2952A transceivers consist of two 8-bit back-to-back registers that store data flowing in both directions between two bidirectional buses. Data on the A or B bus is stored in the registers on the low-to-high transition of the clock (CLKAB or CLKBA) input provided that the clock-enable (CLKENAB or CLKENBA) input is low. Taking the output-enable (OEAB or OEBA) input low accesses the data on either port. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The SN54ABT2952A is characterized for operation over the full military temperature range of –55 °C to 125°C. The SN74ABT2952A is characterized for operation from –40 °C to 85°C. Copyright © 1998, Texas Instruments Incorporated PRODUCTION DATA information is 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. 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. EPIC is a trademark of Texas Instruments Incorporated. 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 B8 B7 B6 B5 B4 B3 B2 B1 OEAB CLKAB CLKENAB GND VCC A8 A7 A6 A5 A4 A3 A2 A1 OEBA CLKBA CLKENBA SN54ABT2952A . . . JT OR W PACKAGE SN74ABT2952A . . . DB, DW, PW, OR NT PACKAGE (TOP VIEW) 32 1 28 27 12 13 14 15 16 17 18 5 6 7 8 9 10 11 25 24 23 22 21 20 19 A6 A5 A4 NC A3 A2 A1 B5 B4 B3 NC B2 B1 OEAB 426 SN54ABT2952A . . . FK PACKAGE (TOP VIEW) NC – No internal connection On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. |
