74ALS374 Series
Octal D-Type Edge Triggered Flip-Flops with 3-State Outputs
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Function | Operating Temperature▲▼ | Operating Temperature▲▼ | Type | Number of Elements▲▼ | Supplier Device Package | Current - Output High, Low▲▼ | Package / Case | Package / Case▲▼ | Max Propagation Delay @ V, Max CL▲▼ | Current - Quiescent (Iq)▲▼ | Number of Bits per Element▲▼ | Mounting Type | Output Type | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Trigger Type | Clock Frequency▲▼ | Package / Case▲▼ | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments SN74ALS374ANSRFlip Flop 1 Element D-Type 8 Bit Positive Edge 20-SOIC (0.209", 5.30mm Width) | Standard | 70 °C | 0 °C | D-Type | 1 ul | 20-SO | 0.0026000000070780516 A, 0.024000000208616257 A | 20-SOIC | 0.0052999998442828655 m, 0.005308600142598152 m | 1.5999999547489097e-8 s | 0.01899999938905239 A | 8 ul | Surface Mount | Tri-State, Non-Inverted | 5.5 V | 4.5 V | Positive Edge | 35000000 Hz | ||
Standard | 70 °C | 0 °C | D-Type | 1 ul | 20-PDIP | 0.0026000000070780516 A, 0.024000000208616257 A | 20-DIP | 1.5999999547489097e-8 s | 0.01899999938905239 A | 8 ul | Through Hole | Tri-State, Non-Inverted | 5.5 V | 4.5 V | Positive Edge | 35000000 Hz | 0.007619999814778566 m | 0.007619999814778566 m | ||
Key Features
• D-Type Flip-Flops in a Single Package With 3-State Bus Driving True OutputsFull Parallel Access for LoadingBuffered Control InputsPackage Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) DIPsD-Type Flip-Flops in a Single Package With 3-State Bus Driving True OutputsFull Parallel Access for LoadingBuffered Control InputsPackage Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) DIPs
Description
AI
These octal D-type edge-triggered flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels set up at the data (D) inputs.
A buffered output-enable (OE\) input places the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without interface or pullup components.
OE\ does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
The SN54ALS374A and SN54AS374 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS374A and SN74AS374 are characterized for operation from 0°C to 70°C.
These octal D-type edge-triggered flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels set up at the data (D) inputs.
A buffered output-enable (OE\) input places the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without interface or pullup components.
OE\ does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
The SN54ALS374A and SN54AS374 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS374A and SN74AS374 are characterized for operation from 0°C to 70°C.