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SN74LVT245BDBR
+NomenclatureIC TXRX NON-INVERT 3.6V 20SSOP
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FabricantTexas Instruments
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Pièce fabricant #SN74LVT245BDBR
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Package SSOP-20
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En stock7547
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Spécifications
| Attribut | Valeur |
| 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 |
Présentation
Description
- 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
- 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
- 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
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
TI is an American multinational corporation that designs and manufactures semiconductors and integrated circuits, including analog and digital ICs.
Application
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
