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The 74173 IC 4-Bit D-Type Register with 3-State Outputs, designated as SN74LS173N and manufactured by XBLW, is a high-performance monolithic integrated circuit comprising four D-type flip-flops with totem-pole 3-state outputs, optimized for direct interfacing with system buses in digital logic applications. This device supports two operational modesparallel load and holdcontrolled by gated enable inputs (G1 and G2), allowing data entry at the D inputs to be latched on the positive clock transition when both enables are low, or maintaining the current state when high.
Features:
- 3-State Outputs Interface Directly With System Bus
- Gated Output-Control LInes for Enabling or Disabling the Outputs
- Fully Independent Clock Virtually Eliminates Restrictions for Operating in One of Two Modes: Parallel Load Do Nothing (Hold)
- For applications such as Bus Buffer Registers
Specifications:
| Parameter | Value |
|---|---|
| Category | Integrated Circuits (ICs)/Logic/Flip Flops |
| Manufacturer | XBLW |
| Package | PDIP-16 |
| Voltage Supply | 4.75V~5.25V |
| Clock Frequency | 50MHz |
| Propagation Delay | 30ns@5V,45pF |
| Operating Temperature | 0~+70 |
| Current Output High(IOH) | 2.6mA |
| Function | Reset |
| Series | 74LS Series |
| Type | D-Type |
| Current Output Low(IOL) | 24mA |
| Number of Bits per Element | 4 |
| Number of Elements | 1 |
| Setup Time | 17ns |
| Hold Time | 3ns |
| Quiescent Current | 24mA |
| Output Type | Tri-State |
| Trigger Type | Rising Edge |
Pin Configuration:
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | M | Active Low Output Enable Input 1 |
| 2 | N | Active Low Output Enable Input 2 |
| 3 | 1Q | Output Pin 1Q |
| 4 | 2Q | Output Pin 2Q |
| 5 | 3Q | Output Pin 3Q |
| 6 | 4Q | Output Pin 4Q |
| 7 | Clock | Clock Pulse Input |
| 8 | GND | Ground Pin |
| 9 | G1 | Active low Input Enable Pin 1 |
| 10 | G2 | Active low Input Enable Pin 2 |
| 11 | 4D | Data Input 4D |
| 12 | 3D | Data Input 3D |
| 13 | 2D | Data Input 2D |
| 14 | 1D | Data Input 1D |
| 15 | Clear | Master Reset Input |
| 16 | VCC | Chip Supply Voltage |
Footprint:
Applications:
- Bus Buffer Registers
- Cascading applications
- High logic level controller
The 74173 IC 4-Bit D-Type Register with 3-State Outputs, designated as SN74LS173N and manufactured by XBLW, is a high-performance monolithic integrated circuit comprising four D-type flip-flops with totem-pole 3-state outputs, optimized for direct interfacing with system buses in digital logic applications. This device supports two operational modesparallel load and holdcontrolled by gated enable inputs (G1 and G2), allowing data entry at the D inputs to be latched on the positive clock transition when both enables are low, or maintaining the current state when high.
Features:
- 3-State Outputs Interface Directly With System Bus
- Gated Output-Control LInes for Enabling or Disabling the Outputs
- Fully Independent Clock Virtually Eliminates Restrictions for Operating in One of Two Modes: Parallel Load Do Nothing (Hold)
- For applications such as Bus Buffer Registers
Specifications:
| Parameter | Value |
|---|---|
| Category | Integrated Circuits (ICs)/Logic/Flip Flops |
| Manufacturer | XBLW |
| Package | PDIP-16 |
| Voltage Supply | 4.75V~5.25V |
| Clock Frequency | 50MHz |
| Propagation Delay | 30ns@5V,45pF |
| Operating Temperature | 0~+70 |
| Current Output High(IOH) | 2.6mA |
| Function | Reset |
| Series | 74LS Series |
| Type | D-Type |
| Current Output Low(IOL) | 24mA |
| Number of Bits per Element | 4 |
| Number of Elements | 1 |
| Setup Time | 17ns |
| Hold Time | 3ns |
| Quiescent Current | 24mA |
| Output Type | Tri-State |
| Trigger Type | Rising Edge |
Pin Configuration:
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | M | Active Low Output Enable Input 1 |
| 2 | N | Active Low Output Enable Input 2 |
| 3 | 1Q | Output Pin 1Q |
| 4 | 2Q | Output Pin 2Q |
| 5 | 3Q | Output Pin 3Q |
| 6 | 4Q | Output Pin 4Q |
| 7 | Clock | Clock Pulse Input |
| 8 | GND | Ground Pin |
| 9 | G1 | Active low Input Enable Pin 1 |
| 10 | G2 | Active low Input Enable Pin 2 |
| 11 | 4D | Data Input 4D |
| 12 | 3D | Data Input 3D |
| 13 | 2D | Data Input 2D |
| 14 | 1D | Data Input 1D |
| 15 | Clear | Master Reset Input |
| 16 | VCC | Chip Supply Voltage |
Footprint:
Applications:
- Bus Buffer Registers
- Cascading applications
- High logic level controller
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