Fairchild/ON Semiconductor DM74AS373WM
Part Number:
- DM74AS373WM
Manufacturer:
- Fairchild/ON Semiconductor
Ventron No:
- 3219203-DM74AS373WM
Description:
- IC LATCH TRANSP OCT D 3ST 20SOIC
Datasheet:
- DM74AS373
Payment:
Delivery:
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Part Overview
Description
The DM74AS373 is an octal D-type transparent latch with 3-STATE outputs. It features totem-pole 3-STATE outputs designed for driving highly-capacitive or relatively low-impedance loads. The high-impedance state and increased high-logic-level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus organized system without the need for interface or pull-up components. They are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The eight latches of the DM74AS373 are transparent D-type latches, meaning that while the enable (G) is HIGH, the outputs will follow the data (D) inputs. When the enable is taken LOW, the output will be latched at the level of the data that was set up.
A buffered output control input can be used to place the eight outputs in either a normal logic state (HIGH or LOW logic levels) or a high impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly.
The output control does not affect the internal operation of the latches. That is, the old data can be retained or new data can be entered even while the outputs are OFF.
Features
Switching specifications at 50 pF
Switching specifications guaranteed over full temperature and Vcc range
Advanced oxide-isolated, ion-implanted Schottky TTL process
Functionally and pin for pin compatible with LS and ALS TTL counterparts
Improved AC performance over LS and ALS TTL counterparts
3-STATE buffer-type outputs drive bus lines directly
Applications
Buffer registers
I/O ports
Bidirectional bus drivers
Working registers
The DM74AS373 is an octal D-type transparent latch with 3-STATE outputs. It features totem-pole 3-STATE outputs designed for driving highly-capacitive or relatively low-impedance loads. The high-impedance state and increased high-logic-level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus organized system without the need for interface or pull-up components. They are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The eight latches of the DM74AS373 are transparent D-type latches, meaning that while the enable (G) is HIGH, the outputs will follow the data (D) inputs. When the enable is taken LOW, the output will be latched at the level of the data that was set up.
A buffered output control input can be used to place the eight outputs in either a normal logic state (HIGH or LOW logic levels) or a high impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly.
The output control does not affect the internal operation of the latches. That is, the old data can be retained or new data can be entered even while the outputs are OFF.
Features
Switching specifications at 50 pF
Switching specifications guaranteed over full temperature and Vcc range
Advanced oxide-isolated, ion-implanted Schottky TTL process
Functionally and pin for pin compatible with LS and ALS TTL counterparts
Improved AC performance over LS and ALS TTL counterparts
3-STATE buffer-type outputs drive bus lines directly
Applications
Buffer registers
I/O ports
Bidirectional bus drivers
Working registers
Specifications
Fairchild/ON Semiconductor DM74AS373WM technical specifications, attributes, parameters and parts with similar specifications to Fairchild/ON Semiconductor DM74AS373WM.
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / Case20-SOIC (0.295, 7.50mm Width)
- Number of Pins20
- Supplier Device Package20-SOIC
- Operating Temperature0°C~70°C
- PackagingTube
- Series74AS
- Part StatusObsolete
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Max Operating Temperature70°C
- Min Operating Temperature0°C
- Voltage - Supply4.5V~5.5V
- Base Part Number74AS373
- Output TypeTri-State
- Operating Supply Voltage5V
- Number of Elements1
- Circuit8:8
- PolarityNon-Inverting
- Number of Circuits8
- Max Supply Voltage5.5V
- Min Supply Voltage4.5V
- Nominal Supply Current85mA
- Number of Bits8
- Propagation Delay6 ns
- Quiescent Current55mA
- Turn On Delay Time3.5 ns
- Logic FunctionD-Type, Latch
- Current - Output High, Low15mA 48mA
- Logic TypeD-Type Transparent Latch
- High Level Output Current-15mA
- Low Level Output Current15mA
- Number of Input Lines8
- Independent Circuits1
- Number of Output Lines3
- Delay Time - Propagation3.5ns
- RoHS StatusRoHS Compliant
- Lead FreeLead Free
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