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MC74ACT373N Datenblatt(PDF) 1 Page - Motorola, Inc |
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MC74ACT373N Datenblatt(HTML) 1 Page - Motorola, Inc |
1 / 8 page 5-1 FACT DATA Octal Transparent Latch with 3State Outputs The MC74AC373/74ACT373 consists of eight latches with 3-state outputs for bus organized system applications. The flip-flops appear transparent to the data when Latch Enable (LE) is HIGH. When LE is LOW, the data that meets the setup time is latched. Data appears on the bus when the Output Enable (OE) is LOW. When OE is HIGH, the bus output is in the high impedance state. • Eight Latches in a Single Package • 3-State Outputs for Bus Interfacing • Outputs Source/Sink 24 mA • ′ACT373 Has TTL Compatible Inputs 19 20 18 17 16 15 14 2 1 3 4 5 6 7 VCC 13 8 12 9 11 10 O7 D7 D6 O6 O5 D5 D4 O4 LE OE O0 D0 D1 O1 O2 D2 D3 O3 GND PIN NAMES D0–D7 Data Inputs LE Latch Enable Input OE Output Enable Input O0–O7 3-State Latch Outputs TRUTH TABLE Inputs Outputs OE LE Dn On H X X Z L H L L L H H H L L X O0 H = HIGH Voltage Level L = LOW Voltage Level Z = High Impedance X = Immaterial O0 = Previous O0 before LOW-to-HIGH Transition of Clock MC74AC373 MC74ACT373 OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS N SUFFIX CASE 738-03 PLASTIC DW SUFFIX CASE 751D-04 PLASTIC LOGIC SYMBOL O0 O1 O2 O3 O4 O5 O6 O7 D0 D1 D2 D3 D4 D5 D6 D7 LE OE |
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