74LCX245MTC

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74LCX245MTC

+BOM

BUS TRANSCEIVER, LVC/LCX/Z SERIE

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Thông số kỹ thuật

thuộc tính Giá trị
Supplier Rochester Electronics, LLC
Package / Case Bulk
Series 74LCX
Part Status Active
Logic Type Transceiver, Non-Inverting
Number of Elements 1
Number of Bits per Element 8
Output Type 3-State
Current - Output High Low 24mA, 24mA
Voltage - Supply 2V ~ 3.6V
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Tổng quan

Description

74LCX245MTC is an 8-bit bidirectional bus transceiver from the 74LCX low‑voltage CMOS family. It contains two 8-bit data paths (A0–A7 and B0–B7) with a single direction control (DIR) and an output‑enable (OE). Data can be transferred in either direction depending on DIR, while OE places both outputs in a high-impedance state for bus sharing. The device is designed for low power and can interface different logic‑voltage domains or crossbar/bus interconnects. Typical uses include microcontroller-to-peripheral interfaces, backplane connections, and level shifting between logic families (within its voltage range). The MTC suffix denotes the specific SMT package variant. For exact supply voltage, timing, and pinout, refer to the datasheet of the particular manufacturer.

Features

Here are the typical features of the 74LCX245MTC:
- 8-bit octal bidirectional bus transceiver
- 2 buses: A and B with 3-state outputs
- DIR input to select transfer direction (A→B or B→A)
- /OE (output enable) to place outputs in high-impedance
- Suitable for bus sharing and level shifting between voltage domains
- Low-power CMOS LCX family; operates on 2.3 V to 3.6 V
- TTL-compatible inputs; high-drive, fast switching
- Available in MTC package (tape-and-reel/lead-free variant)

Pinout

- Pin count: 20 pins (DIP-20/SOIC-20 package).
- Function: Octal bidirectional bus transceiver with 3-state outputs (A1–A8 and B1–B8). Direction is controlled by DIR (A↔B), and the outputs are enabled/disabled by /OE (tri-state).

Manufacturer

Texas Instruments (TI). TI is an American multinational semiconductor company that designs and manufactures analog and digital integrated circuits and other electronics.

Application

74LCX245MTC is an 8-bit bidirectional buffer/transceiver with 3-state outputs. Common applications include:
- Bus buffering and isolation in microprocessor/microcontroller systems (data/address lines)
- Peripheral and memory interfaces (RAM, ROM, EEPROM, LCDs, ADCs/DACs)
- Level shifting/voltage-domain translation between devices at different supplies
- Bus bridging between FPGA/ASIC and other components, with tri-state control
- Backplanes and expansion buses where multiple devices share a data bus
- Signal integrity improvement on long or noisy lines by buffering loads

Package

20-pin plastic Small-Outline IC (SOIC) package.

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