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SN74HC374PWR
+物料清單IC FF D-TYPE SNGL 8BIT 20TSSOP
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製造商德州儀器
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製造商部分 #SN74HC374PWR
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規格
| 屬性 | 價值 |
| Supplier | Texas Instruments |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74HC |
| ProductStatus | Active |
| Function | Standard |
| Type | D-Type |
| OutputType | Tri-State, Non-Inverted |
| NumberofElements | 1 |
| NumberofBitsperElement | 8 |
| ClockFrequency | 70 MHz |
| MaxPropagationDelay@VMaxCL | 31ns @ 6V, 50pF |
| TriggerType | Positive Edge |
| Current-OutputHighLow | 7.8mA, 7.8mA |
| Voltage-Supply | 2V ~ 6V |
| Current-Quiescent(Iq) | 8 µA |
| InputCapacitance | 3 pF |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| SupplierDevicePackage | 20-TSSOP |
概述
Description
Key points:
- 8 D inputs (D0–D7) and an on-chip clock (CLK). Data on D0–D7 are captured on the rising edge of CLK.
- Q0–Q7 provide the stored data; outputs are tri-stated when Output Enable (OE) is deasserted (OE is typically active-low).
- No asynchronous clear or preset; operation is purely clocked storage.
- Power: CMOS HC family. Typical supply range is 2 to 6 V (commonly 5 V).
- Features fast operation and low power; TTL-like input compatibility.
- Package variant “PWR” denotes a specific TI power/packaging option (e.g., a RoHS-compliant DIP/SOIC variant).
Common uses:
- Storing and buffering 8-bit data between buses or a processor and peripheral logic.
- Building small register banks or shift/register structures.
In short: an 8-bit, clocked storage register with 3-state outputs suitable for data buffering and bus interfacing in 5 V digital designs.
Equivalent
- 74HC374 family (same function) from TI and other vendors
- 74HCT374 (TTL-compatible input thresholds)
- Other CMOS variants: 74AHC374, 74AVC374, 74LVC374
- Vendors with direct equivalents: Nexperia 74HC374, ON Semiconductor 74HC374, Renesas 74HC374
Ensure matching voltage range and package compatibility for your design.
Features
- 8-bit D-type register (D0–D7)
- Edge-triggered, clocked on the rising edge (CLK)
- 8 outputs (Q0–Q7) with 3-state capability
- Output Enable (OE) input, active-low; outputs go high-impedance when OE is high
- Synchronous data storage; data captured on clock edge
- Fully static operation (no dynamic timing required to hold data)
- Wide supply range (CMOS-compatible): typically 2V–6V
- Suitable for bus interfacing, storage/register applications, and data buffering
Optional note: Packaging variants (like PWR) pertain to specific package/lead-free options but do not change the core features listed above.
Pinout
- Function: Octal D-type edge-triggered register with 3-state outputs. Captures 8-bit data on the rising edge of the clock (CLK) from D1–D8 to Q1–Q8. Includes an active-low Output Enable (/OE) to tri-state the outputs when deasserted. Also has Vcc and GND pins.
Manufacturer
- What kind of company: An American multinational technology company that designs and manufactures semiconductors and integrated circuits (a leading producer of analog, mixed-signal, and digital ICs).
Application
- Demultiplexing address/data buses in microprocessors/microcontrollers (e.g., latching address lines).
- 8-bit data buffering and temporary storage in digital systems.
- Pipeline/register stages and timing alignment in synchronous designs.
- Glue logic and bus isolation for shared buses (tri-state outputs enable bus sharing).
- Interface to peripherals/display drivers (LEDs, LCDs, printers) requiring latched data.
- Memory-mapped I/O and simple buffering for RAM/ROM chips.
Also useful as general-purpose 8-bit latch/register in ASIC/FPGA glue logic.