Thông số kỹ thuật
| thuộc tính | Giá trị |
| Supplier | Texas Instruments,Rochester Electronics, LLC |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Receiver Hysteresis | 50 mV |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -20°C ~ 85°C |
| Mounting Type | Surface Mount |
Tổng quan
Description
The SN751177NSR is a Texas Instruments device in the SN7511x family. It’s an 8-bit data-register/buffer with tri-state outputs used to drive or buffer a data bus. It latches 8-bit input on a clock edge and can place its 8 outputs in a high‑impedance state via an enable control, making it suitable for microprocessor data-bus buffering and peripheral registers. The NSR suffix denotes the package style (Narrow SOIC, etc.). For exact pinout, timing, and electrical specs, consult the SN751177 datasheet on TI’s site. If you want, I can pull out the key pins and timing diagrams.
Equivalent
Equivalent parts (same function: quad 4-bit register with 3-state outputs):
- TI: SN74LS177, SN74ALS177, SN74F177, SN74HC177, SN74HCT177
- Other vendors: MC74LS177, MC74ALS177, MC74F177; 74HC177, 74HCT177 (Nexperia/NXP, STMicroelectronics, etc.)
These cover TTL, fast-TTL, and CMOS family variants.
- TI: SN74LS177, SN74ALS177, SN74F177, SN74HC177, SN74HCT177
- Other vendors: MC74LS177, MC74ALS177, MC74F177; 74HC177, 74HCT177 (Nexperia/NXP, STMicroelectronics, etc.)
These cover TTL, fast-TTL, and CMOS family variants.
Features
SN751177NSR features (concise):
- 8-bit storage register with 3-state (tri-state) outputs
- Positive-edge-triggered clock inputs
- D0–D7 data inputs; Q0–Q7 outputs
- Output Enable (OE) to place outputs in high-impedance
- TTL-compatible with a 4.5–5.5 V supply
- TI NSR package (16-pin) suitable for common bus/interfacing tasks
- Ideal for data buffering and microprocessor bus interfacing
Note: Always check the specific datasheet for exact pinout and timing to confirm details for your design.
- 8-bit storage register with 3-state (tri-state) outputs
- Positive-edge-triggered clock inputs
- D0–D7 data inputs; Q0–Q7 outputs
- Output Enable (OE) to place outputs in high-impedance
- TTL-compatible with a 4.5–5.5 V supply
- TI NSR package (16-pin) suitable for common bus/interfacing tasks
- Ideal for data buffering and microprocessor bus interfacing
Note: Always check the specific datasheet for exact pinout and timing to confirm details for your design.
Pinout
- Pin count: 20 pins (NSR = small-outline 20-pin package).
- Function: 8-bit register/l latch with tri-state outputs (D0–D7 data inputs, clock/enable input, and 8 Q outputs with an output-enable control for bus interfacing).
- Function: 8-bit register/l latch with tri-state outputs (D0–D7 data inputs, clock/enable input, and 8 Q outputs with an output-enable control for bus interfacing).
Manufacturer
- Manufacturer: Texas Instruments (TI)
- Company type: American multinational technology company that designs and manufactures semiconductors and integrated circuits (analog, digital, embedded processing, etc.).
- Company type: American multinational technology company that designs and manufactures semiconductors and integrated circuits (analog, digital, embedded processing, etc.).
Application
Possible application areas for SN751177NSR:
- Microprocessor/microcontroller bus interfacing
- Address/data bus buffering and latching
- Memory and I/O expansion via buffering between CPU and peripherals
- Backplane or interconnect data-path buffering and isolation
- Timing/synchronization aids in digital systems using multiplexed or parallel buses
- Microprocessor/microcontroller bus interfacing
- Address/data bus buffering and latching
- Memory and I/O expansion via buffering between CPU and peripherals
- Backplane or interconnect data-path buffering and isolation
- Timing/synchronization aids in digital systems using multiplexed or parallel buses
Package
SN751177NSR comes in a 20‑pin Narrow Small Outline package (NSR = Narrow Shrink/Soic, surface‑mount).
