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SN54LS797

Motorola Inc
Part Number SN54LS797
Manufacturer Motorola Inc
Description TRI-STATE OCTAL BUFFERS
Published Apr 16, 2005
Detailed Description TRI-STATE OCTAL BUFFERS The SN54 / 74LS795 thru SN54 / 74LS798 device types provide a second source for the 71 / 81LS95 ...
Datasheet PDF File SN54LS797 PDF File

SN54LS797
SN54LS797

Overview
TRI-STATE OCTAL BUFFERS The SN54 / 74LS795 thru SN54 / 74LS798 device types provide a second source for the 71 / 81LS95 thru 71 / 81LS98 series.
These devices are octal low power Schottky versions of the 70/8095 thru 70/8098 3-STATE Hex Buffers.
The LS795 and LS797 are noninverting and the LS796 and LS798 are inverting functions.
On each buffer, one of the two inputs is used as a control line to gate the output into the high impedance state, while the other input passes the data through the buffer.
On the LS795 and LS796 access is through a 2-input NOR gate, with all eight 3-STATE enable lines common.
On the LS797 and LS798, four buffers are enabled from one common line and the other four buffers from another common line.
On all device types the 3-STATE condition is achieved by applying a high logic level to the enable pins.
TRUTH TABLES LS795 INPUTS G1 H X L L G2 X H L L A X X H L OUTPUT Y Z Z H L SN54/74LS795 SN54/74LS796 SN54/74LS797 SN54/74LS798 TRI-STATE OCTAL BUFFERS LOW POWER SCHOTTKY LS796 INPUTS G1 H X L L G2 X H L L A X X H L OUTPUT Y Z Z L H 20 1 J SUFFIX CERAMIC CASE 732-03 20 1 N SUFFIX PLASTIC CASE 738-03 LS797 INPUTS G H L L A X H L OUTPUT Y Z H L LS798 INPUTS G H L L A X H L OUTPUT Y Z L H 20 1 DW SUFFIX SOIC CASE 751D-03 ORDERING INFORMATION SN54LSXXXJ Ceramic SN74LSXXXN Plastic SN74LSXXXDW SOIC GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current — High Output Current — Low Parameter 54 74 54 74 54 74 54 74 Min 4.
5 4.
75 – 55 0 Typ 5.
0 5.
0 25 25 Max 5.
5 5.
25 125 70 – 2.
6 – 5.
0 8.
0 16 Unit V °C mA mA FAST AND LS TTL DATA 5-609 SN54/74LS795 • SN54/74LS796 SN54/74LS797 • SN54/74LS798 LOGIC DIAGRAMS VCC G2 A8 Y8 A7 Y7 A6 Y6 A5 Y5 20 19 18 17 16 15 14 13 12 11 VCC G2 A8 Y8 A7 Y7 A6 Y6 A5 Y5 20 19 18 17 16 15 14 13 12 11 1 2 3 G1 A1 Y1 4 A2 5 6 7 8 9 10 Y2 A3 Y3 A4 Y4 GND 1 2 3 G1 A1 Y1 4 A2 5 6 7 8 9 10 Y2 A3 Y3 A4 Y4 GND SN54/74LS795 SN54/74LS796 VCC G2 A8 Y8 A7 Y7 A6...


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