Спецификации
| Атрибут | Ценность |
| Supplier | Texas Instruments |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74LVT |
| 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 | 32mA, 64mA |
| Voltage - Supply | 2.7V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Обзор
Description
SN74LVT245BDBR is an 8‑bit bidirectional buffer/transceiver from TI’s 74LVT family. It realises two 8‑bit data paths between A0–A7 and B0–B7, controlled by:
- DIR: selects data direction (DIR=0 → A→B, DIR=1 → B→A)
- OE: active low to enable outputs; high disables to high‑Z
Key points:
- 3‑state outputs for bus sharing
- Low‑voltage CMOS (LVT) device; typical 3.3V operation, with a 1.65–3.6V Vcc range
- TTL‑compatible inputs
- Used for bus buffering/isolating interfaces between microprocessors, memory, and peripherals
Package: 20‑pin RoHS‑compliant device (suffix BR indicates the package variant).
- DIR: selects data direction (DIR=0 → A→B, DIR=1 → B→A)
- OE: active low to enable outputs; high disables to high‑Z
Key points:
- 3‑state outputs for bus sharing
- Low‑voltage CMOS (LVT) device; typical 3.3V operation, with a 1.65–3.6V Vcc range
- TTL‑compatible inputs
- Used for bus buffering/isolating interfaces between microprocessors, memory, and peripherals
Package: 20‑pin RoHS‑compliant device (suffix BR indicates the package variant).
Equivalent
Equivalents (8‑bit bus transceivers with DIR and 3‑state outputs in the LVT family):
- MC74LVT245A (ON Semiconductor)
- 74LVT245 (Nexperia/NXP)
- uPD74LVT245 (Renesas)
- TC74LVT245 (Toshiba)
Note: verify Vcc (3.3/5V), speed grade, and package/pinout for exact compatibility.
- MC74LVT245A (ON Semiconductor)
- 74LVT245 (Nexperia/NXP)
- uPD74LVT245 (Renesas)
- TC74LVT245 (Toshiba)
Note: verify Vcc (3.3/5V), speed grade, and package/pinout for exact compatibility.
Features
Here are the key features of SN74LVT245BDBR:
- Octal (8-bit) bidirectional bus transceiver with 3-state outputs
- Noninverting data path between A and B ports
- DIR input selects A→B or B→A data flow
- /OE (output enable) input to disable/tri-state all outputs
- TTL/CMOS-compatible inputs
- Vcc range: 1.65 V to 3.6 V (low-voltage CMOS family)
- 3-state outputs allow bus sharing and easy multiplexing
- ESD protection on I/O pins
- Suitable for interfacing different voltage levels and bus-oriented designs
- Available in smaller packages (DBR region/package option) for compact designs
Note: Always verify exact electrical characteristics and packaging in the latest TI datasheet for your specific operating conditions.
- Octal (8-bit) bidirectional bus transceiver with 3-state outputs
- Noninverting data path between A and B ports
- DIR input selects A→B or B→A data flow
- /OE (output enable) input to disable/tri-state all outputs
- TTL/CMOS-compatible inputs
- Vcc range: 1.65 V to 3.6 V (low-voltage CMOS family)
- 3-state outputs allow bus sharing and easy multiplexing
- ESD protection on I/O pins
- Suitable for interfacing different voltage levels and bus-oriented designs
- Available in smaller packages (DBR region/package option) for compact designs
Note: Always verify exact electrical characteristics and packaging in the latest TI datasheet for your specific operating conditions.
Pinout
Pin count: 20 pins (DIP/SOIC).
Function: SN74LVT245B is an octal (8-bit) bidirectional bus transceiver with 3-state outputs. It buffers data between two 8-bit buses (A1–A8 and B1–B8). The DIR pin selects the direction (A-side to B-side or vice versa), and the OE pin enables/disables the outputs (tri-states the buses when disabled). Used for interconnecting buses at different voltage levels in 3.3V logic systems.
Function: SN74LVT245B is an octal (8-bit) bidirectional bus transceiver with 3-state outputs. It buffers data between two 8-bit buses (A1–A8 and B1–B8). The DIR pin selects the direction (A-side to B-side or vice versa), and the OE pin enables/disables the outputs (tri-states the buses when disabled). Used for interconnecting buses at different voltage levels in 3.3V logic systems.
Manufacturer
Manufacturer: Texas Instruments (TI).
TI is an American multinational corporation that designs and manufactures semiconductors and integrated circuits, including analog and digital ICs.
TI is an American multinational corporation that designs and manufactures semiconductors and integrated circuits, including analog and digital ICs.
Application
SN74LVT245B is an 8-bit bidirectional bus transceiver with 3-state outputs (DIR and OE). It is used to buffer and/or translate data on a bidirectional bus between devices running at different voltages.
Common applications:
- Level shifting and buffering between 3.3V and 5V logic domains
- Microprocessor/microcontroller data bus buffering and expansion
- Interface between processors/FPGA/SoC and memories or peripherals
- Backplane or inter-board data paths requiring controlled tri-state buses
- Bus isolation in mixed-voltage systems and high-speed data transfer applications
Common applications:
- Level shifting and buffering between 3.3V and 5V logic domains
- Microprocessor/microcontroller data bus buffering and expansion
- Interface between processors/FPGA/SoC and memories or peripherals
- Backplane or inter-board data paths requiring controlled tri-state buses
- Bus isolation in mixed-voltage systems and high-speed data transfer applications
Package
It uses a 20‑pin small‑outline (SOIC) surface‑mount package, Pb‑free/RoHS compliant.
