DatasheetsPDF.com

SN74LS243

Motorola
Part Number SN74LS243
Manufacturer Motorola
Published May 20, 2005
Description QUAD BUS TRANSCEIVER
Detailed Description QUAD BUS TRANSCEIVER The SN54/ 74LS242 and SN54 / 74LS243 are Quad Bus Transmitters / Receivers designed for 4-line asyn...
Datasheet PDF File SN74LS243 PDF File

SN74LS243
SN74LS243


Overview
QUAD BUS TRANSCEIVER The SN54/ 74LS242 and SN54 / 74LS243 are Quad Bus Transmitters / Receivers designed for 4-line asynchronous 2-way data communications between data buses.
SN54/74LS242 SN54/74LS243 • Hysteresis at Inputs to Improve Noise Immunity • 2-Way Asynchronous Data Bus Communication • Input Clamp Diodes Limit High-Speed Termination Effects LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW) SN54 / 74LS242 VCC 14 GBA 13 NC 12 1B 11 2B 10 3B 9 4B 8 QUAD BUS TRANSCEIVER LOW POWER SCHOTTKY J SUFFIX CERAMIC CASE 632-08 14 1 1 GBA 2 NC 3 1A 4 2A 5 3A 6 4A 7 GND NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package.
14 1 N SUFFIX PLASTIC CASE 646-06 SN54 / 74LS243 VCC 14 GBA 13 NC 12 1B 11 2B 10 3B 9 4B 8 14 1 D SUFFIX SOIC CASE 751A-02 ORDERING INFORMATION 1 GBA 2 NC 3 1A 4 2A 5 3A 6 4A 7 GND SN54LSXXXJ Ceramic SN74LSXXXN Plastic SN74LSXXXDW SOIC TRUTH TABLES SN54 / 74LS242 INPUTS OUTPUT GAB L L H D L H X H L (Z) GAB L H H D X L H (Z) H L INPUTS OUTPUT GAB L L H D L H X L H (Z) INPUTS OUTPUT GAB L H H D X L H (Z) H L SN54/74LS243 INPUTS OUTPUT H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = HIGH Impedance FAST AND LS TTL DATA 5-393 SN54/74LS242 • SN54/74LS243 GUARANTEED OPERATING RANGES Symbol VCC TA IOH Supply Voltage Operating Ambient Temperature Range Output Current — High Parameter 54 74 54 74 54, 74 54 74 IOL Output Current — Low 54 74 Min 4.
5 4.
75 – 55 0 Typ 5.
0 5.
0 25 25 Max 5.
5 5.
25 125 70 – 3.
0 – 12 – 15 12 24 Unit V °C mA mA mA DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VT+–VT– VIK VOH Parameter Input HIGH Voltage 54 Input LOW Voltage 74 Hysteresis Input Clamp Diode Voltage 54, 74 Output HIGH Voltage 54, 74 54, 74 VOL IOZH IOZL Output LOW Voltage 74 Output Off Current HIGH Output Off Current LOW D, E1, E2 IIH Input HIGH Current E1, E2 D Input IIL IOS Input LOW Current Output Short Circuit Current (Note 1) Power Supply C...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)