Basic Product Information
Part Number: SN74LVC8T245PWR
Core Electrical Parameters
| Parameter |
Value |
Unit |
| Number of Bits |
8 |
– |
| VCCA Supply Range |
1.65 to 5.5 |
V |
| VCCB Supply Range |
1.65 to 5.5 |
V |
| Data Rate |
500 |
Mbps |
| Propagation Delay (typ) |
4.2 |
ns |
| Output Current (max) |
±32 |
mA |
| Direction Control |
DIR pin (referenced to VCCA) |
– |
| Output Enable |
OE pin (active low, referenced to VCCA) |
– |
| Output Type |
3-State |
– |
| Quiescent Current (max) |
15 |
μA |
| VCC Isolation |
Yes (either VCC = GND → all outputs Hi-Z) |
– |
| Ioff Support |
Yes (partial power-down protection) |
– |
| ESD Protection |
4000V HBM / 1000V CDM |
V |
| Latch-up Performance |
>100 mA (JESD 78 Class II) |
mA |
| Operating Temperature |
-40 to +85 |
°C |
Core Features & Advantages
The SN74LVC8T245PWR delivers 8-bit bidirectional voltage-level translation between any two voltage nodes (1.65V–5.5V) at up to 500Mbps in a compact 24-pin TSSOP package.
- Primary Function: 8-channel dual-supply non-inverting bus transceiver providing bidirectional voltage-level translation between mixed-voltage domains with DIR and OE control.
- Advantages:
- Fully configurable dual-rail (1.65V–5.5V each) — universal translation between any combination of 1.8V, 2.5V, 3.3V, and 5V logic without direction-pin constraints per channel.
- 500Mbps data rate with 4.2ns propagation delay — supports high-speed parallel bus interfaces such as SPI, parallel LCD, and memory-mapped peripherals across voltage boundaries.
- VCC isolation and Ioff protection — outputs enter Hi-Z when either supply is at GND, preventing damaging backflow current during partial power-down or hot-swap scenarios.
Typical Application Scenarios
- Industry: Industrial / Consumer / Networking / Computing
- Equipment: Mixed-voltage MCU/FPGA boards, multi-voltage bus interfaces, LCD controllers
- Use Cases:
- Interfacing a 3.3V MCU with 5V peripherals (LCD, legacy logic) using 8-bit bidirectional data bus translation.
- Level-shifting parallel memory-mapped bus between 1.8V FPGA and 3.3V peripheral ICs at high speed.
- Hot-swap or hot-plug backplane interfaces where VCC isolation prevents damage during card insertion/removal.
Market Reference Price
| Market |
Price Range |
Currency |
| Huaqiangbei Spot |
$0.40 – $0.80 |
USD |
| Overseas B2B |
$0.74 – $1.79 |
USD |
Related Models Comparison
| Model |
Difference |
Application |
| TXB0108PWR |
8-bit auto-direction-sensing translator (no DIR/OE pins), lower drive (20mA), 110Mbps |
Simpler bidirectional I2C/SPI level shifting without direction control |
| SN74LVC4T245PWR |
4-bit version (half channel count), same dual-supply architecture in TSSOP-16 |
Space-constrained designs needing only 4 channels of translation |
| SN74LVC16T245DGG |
16-bit version in TSSOP-48, double channel count for wide parallel buses |
16-bit parallel bus voltage translation (e.g., memory interfaces) |
