8-Bit Addressable Latch Functional Diagram 1-OF-8 DECODER LA

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8-Bit Addressable Latch Functional Diagram 1-OF-8 DECODER LA

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CD54HC259/3A CD54HCT259/3A
8-Bit Addressable Latch
Functional Diagram
1-OF-8 DECODER LATCHES
June 1997
COMPLETE DATA SHEET COMING SOON!
Description
CD54HC259/3A CD54HCT259/3A Addressable Latch features low-power consumption associated with CMOS circuitry speeds comparable low-power Schottky. This latch three active modes reset mode. When both Latch Enable (LE) Master Reset (MR) inputs (8-line Demultiplexer mode) output addressed latch follows Data input other outputs forced low. When both high (Memory) latches hold last data presented before transition from high. condition high (addressable Latch mode) allows addressed latch's output follow data input; other latches unaffected. Reset mode (all outputs low) results when high low.
INPUT LOAD TABLE INPUT NOTE: Unit load limit specified Electrical Specifications Table, e.g., 360µA +25oC. UNIT LOAD (NOTE 0.75
Absolute Maximum Ratings
Supply Voltage, Voltages Referenced -0.5V +7.0V Input Voltage Range, Inputs, -0.5V +0.5V Output Voltage Range, Outputs, VOUT -0.5V +0.5V Input Diode Current, -0.5V 0.5V .±20mA Output Diode Current, -0.5V 0.5V .±20mA Drain Current, Output, -0.5V 0.5V Standard Output .±25mA Driver Output. .±35mA Current, Standard Output .±50mA Driver Output. .±70mA Power Dissipation Package, -55oC +100oC (Package 500mW +100oC +125oC (Package Derate Linearly 8mW/ 300mW Operating Temperature Range, Package Type -55oC +125oC Storage Temperature, TSTG -65oC +150oC Lead Temperature (During Soldering) Distance 1/16in. 1/32in. (1.59mm 0.79mm) From Case +265oC Unit Inserted Into Board (Min Thickness 1/16in., 1.59mm) With Solder Contacting Lead Tips Only. +300oC
CAUTION: Stresses above those listed "Absolute Maximum Ratings" cause permanent damage device. This stress only rating operation device these other conditions above those indicated operational sections this specification implied.
Recommended Operating Conditions
Supply Voltage Range, Full Package Temperature Range CD54HC Types CD54HCT Types .4.5V 5.5V Input Output Voltage, VIN, VOUT Operating Temperature Range, -55oC +125oC Input Rise Fall Times, 1000ns 4.5V 500ns 400ns
CAUTION: These devices sensitive electrostatic discharge. Users should follow proper I.C. Handling Procedures. Copyright
Harris Corporation 1994
File Number
3815

8-Bit Addressable Latch Functional Diagram 1-OF-8 DECODER LA

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