74ALS992 Series
9-Bit D-Type Transparent Read-Back Latches With 3-State Outputs
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Package / Case▲▼ | Package / Case▲▼ | Package / Case | Supplier Device Package | Output Type | Circuit▲▼ | Circuit▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Independent Circuits▲▼ | Delay Time - Propagation▲▼ | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Current - Output High, Low▲▼ | Current - Output High, Low▲▼ | Logic Type | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.007499999832361937 m | 0.007493000011891127 m | 24-SOIC | 24-SOIC | Tri-State | 9 ul | 9 ul | 70 °C | 0 °C | 1 ul | 6.000000052353016e-9 s | 5.5 V | 4.5 V | 0.00800000037997961 A | 0.00039999998989515007 A | D-Type Transparent Latch | Surface Mount | |
0.007499999832361937 m | 0.007493000011891127 m | 24-SOIC | 24-SOIC | Tri-State | 9 ul | 9 ul | 70 °C | 0 °C | 1 ul | 6.000000052353016e-9 s | 5.5 V | 4.5 V | 0.00800000037997961 A | 0.00039999998989515007 A | D-Type Transparent Latch | Surface Mount |
Key Features
• 3-State I/O-Type Read-Back InputsBus-Structured PinoutTrue Logic OutputsDesigned With Nine Bits for Parity ApplicationsPackage Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (NT) 300-mil DIPs3-State I/O-Type Read-Back InputsBus-Structured PinoutTrue Logic OutputsDesigned With Nine Bits for Parity ApplicationsPackage Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (NT) 300-mil DIPs
Description
AI
This 9-bit latch is designed specifically for storing the contents of the input data bus and providing the capability of reading back the stored data onto the input data bus. In addition, this device provides a 3-state buffer-type output and is easily implemented in parity applications.
The nine latches are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. The Q outputs are in the 3-state condition when the output-enable () input is high.
Read back is provided through the output-enable () input. Whenis taken low, the data present at the output of the data latches is allowed to pass back onto the input data bus. Whenis taken high, the output of the data latches is isolated from the D inputs.does not affect the internal operation of the latches; however, precautions should be taken not to create a bus conflict.
The SN74ALS992 is characterized for operation from 0°C to 70°C.
This 9-bit latch is designed specifically for storing the contents of the input data bus and providing the capability of reading back the stored data onto the input data bus. In addition, this device provides a 3-state buffer-type output and is easily implemented in parity applications.
The nine latches are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. The Q outputs are in the 3-state condition when the output-enable () input is high.
Read back is provided through the output-enable () input. Whenis taken low, the data present at the output of the data latches is allowed to pass back onto the input data bus. Whenis taken high, the output of the data latches is isolated from the D inputs.does not affect the internal operation of the latches; however, precautions should be taken not to create a bus conflict.
The SN74ALS992 is characterized for operation from 0°C to 70°C.