SN74ABT16952
SN74ABT16952 is 16-BIT REGISTERED TRANSCEIVERS manufactured by Texas Instruments.
description
The ’ABT16952 are 16-bit registered transceivers that contain two sets of D-type flip-flops for temporary storage of data flowing in either direction. The ’ABT16952 can be used as two 8-bit transceivers or one 16-bit transceiver. 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.
SN54ABT16952 . . . WD PACKAGE SN74ABT16952 . . . DGG OR DL PACKAGE
(TOP VIEW)
1OEAB 1 1CLKAB 2 1CLKENAB 3
GND 4 1A1 5 1A2 6 VCC 7 1A3 8 1A4 9 1A5 10 GND 11 1A6 12 1A7 13 1A8 14 2A1 15 2A2 16 2A3 17 GND 18 2A4 19 2A5 20 2A6 21 VCC 22 2A7 23 2A8 24 GND 25 2CLKENAB 26 2CLKAB 27 2OEAB 28
56 1OEBA 55 1CLKBA 54 1CLKENBA 53 GND 52 1B1 51 1B2 50 VCC 49 1B3 48 1B4 47 1B5 46 GND 45 1B6 44 1B7 43 1B8 42 2B1 41 2B2 40 2B3 39 GND 38 2B4 37 2B5 36 2B6 35 VCC 34 2B7 33 2B8 32 GND 31 2CLKENBA 30 2CLKBA 29 2OEBA
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 SN54ABT16952 is characterized for operation over the full military temperature range of
- 55°C to 125°C. The SN74ABT16952 is characterized for operation from
- 40°C to 85°C.
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