Catalog(3 parts)
| Part | Circuit▲▼ | Circuit | Independent Circuits▲▼ | Supplier Device Package | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Mounting Type | Type | Package / Case▲▼ | Package / Case | Current - Output High, Low▲▼ | Current - Output High, Low▲▼ | Voltage Supply Source |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
4 ul | 2:1 | 1 ul | 16-PDIP | 4.75 V | 5.25 V | 70 °C | 0 °C | Through Hole | Multiplexer | 0.007619999814778566 m, 0.007619999814778566 m | 16-DIP | 0.00800000037997961 A | 0.00039999998989515007 A | Single Supply | |
4 ul | 2:1 | 1 ul | 16-SOIC | 4.75 V | 5.25 V | 70 °C | 0 °C | Surface Mount | Multiplexer | 0.003911599982529879 m, 3.900000095367432 ul | 16-SOIC | 0.00800000037997961 A | 0.00039999998989515007 A | Single Supply | |
Key Features
• Single-Rail Outputs on 'LS399Selects One of Two 4-Bit Data Sources and Stores Data Synchronously with System ClockApplications:Dual Source for Operands and Constants in Arithmetic Processor; Can Release Processor Register Files for Acquiring New DataImplement Separate Registers Capable of Parallel Exchange of Contents Yet Retain External Load CapabilityUniversal Type Register for Implementing Various Shift Patterns: Even Has Compound Left-Right CapabilitiesSingle-Rail Outputs on 'LS399Selects One of Two 4-Bit Data Sources and Stores Data Synchronously with System ClockApplications:Dual Source for Operands and Constants in Arithmetic Processor; Can Release Processor Register Files for Acquiring New DataImplement Separate Registers Capable of Parallel Exchange of Contents Yet Retain External Load CapabilityUniversal Type Register for Implementing Various Shift Patterns: Even Has Compound Left-Right Capabilities
Description
AI
This monolithic quadruple two-input multiplexer with storage provides essentially the equivalent functional capabilities of two separate MSI functions (SN54LS157/SN74LS157 and SN54LS175/SN74LS175) in a single 16-pin package.
When the word-select input is low, word 1 (A1, B1, C1, D1) is applied to the flip-flops. A high input to word select will cause the selection of word 2 (A2, B2, C2, D2). The selected word is clocked to the output terminals on the positive-going edge of the clock pulse.
Typical power dissipation is 37 milliwatts. The SN54LS399 is characterized for operation over the full military range of -55°C to 125°C. The SN74LS399 is characterized for operation from 0°C to 70°C.
This monolithic quadruple two-input multiplexer with storage provides essentially the equivalent functional capabilities of two separate MSI functions (SN54LS157/SN74LS157 and SN54LS175/SN74LS175) in a single 16-pin package.
When the word-select input is low, word 1 (A1, B1, C1, D1) is applied to the flip-flops. A high input to word select will cause the selection of word 2 (A2, B2, C2, D2). The selected word is clocked to the output terminals on the positive-going edge of the clock pulse.
Typical power dissipation is 37 milliwatts. The SN54LS399 is characterized for operation over the full military range of -55°C to 125°C. The SN74LS399 is characterized for operation from 0°C to 70°C.