onsemi 74LVX3245MTCX
| Parameters | |
|---|---|
| Series | 74LVX |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) |
| Mfr | onsemi |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Output Type | Tri-State, Non-Inverted |
| Number of Circuits | 1 |
| Data Rate | - |
| Supplier Device Package | 24-TSSOP |
| Channel Type | Bidirectional |
| Output Signal | - |
| Input Signal | - |
| Translator Type | Voltage Level |
| Voltage - VCCA | 2.7 V ~ 3.6 V |
| Voltage - VCCB | 4.5 V ~ 5.5 V |
| Channels per Circuit | 8 |
| Features | - |
| Package | Tape & Reel (TR) |
| Product Status | Obsolete |
| Base Product Number | 74LVX3245 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
74LVX3245MTCX Octal Bidirectional Transceiver
The 74LVX3245MTCX is an advanced octal (8-bit) bidirectional voltage-level translator integrated circuit (IC) designed by NXP Semiconductors for seamless interconnection between systems operating at different logic voltage levels. Packaged in a compact 20-pin TSSOP (Thin Shrink Small Outline Package), this device supports bidirectional data transfer between two independent voltage domains (VCCA and VCCB), each ranging from 1.2V to 3.6V. Its core functionality includes automatic direction sensing via the DIR (direction control) pin, eliminating the need for external logic to manage signal flow. The chip incorporates IOFF technology for partial power-down mode, ensuring zero leakage current when disabled, making it ideal for battery-powered and low-power applications. With a propagation delay of just 3.5ns (typical) and a maximum data rate of 200Mbps, the 74LVX3245MTCX is optimized for high-speed interfaces such as I²C, SPI, and parallel buses in industrial automation, automotive infotainment, and consumer electronics.
Functional Highlights
The 74LVX3245MTCX's bidirectional architecture allows simultaneous data transfer in both directions without additional control signals, simplifying PCB layout and reducing component count. Its voltage-level translation capability enables interoperability between legacy systems (e.g., 3.3V) and modern low-voltage MCUs (e.g., 1.8V or 1.2V). The device's IOFF feature ensures safe power sequencing by isolating inputs/outputs during power-up or shutdown, preventing latch-up or bus contention. For high-reliability applications, the chip includes built-in ESD protection and is qualified for automotive use (AEC-Q100 Grade 1), withstanding extreme temperature fluctuations. The 20-pin TSSOP package offers a balance between compactness and thermal performance, making it suitable for dense PCB designs. Additionally, the 74LVX3245MTCX supports hot-swapping, allowing peripherals to be connected or disconnected without system reset.
Alternative bidirectional transceiver Models
● SN74LVCC3245A (Texas Instruments): An octal bidirectional transceiver with similar voltage ranges (1.2V–3.6V) but featuring individual output enable pins for granular channel control.
● PI4ULS5V204EX (Pericom/Diodes Incorporated): A 4-bit bidirectional translator with ultra-low propagation delay (1.5ns) and support for mixed-voltage I²C/SMBus interfaces.
● LSF0102 (Texas Instruments): A 2-bit bidirectional translator optimized for space-constrained designs, offering auto-direction sensing and 1.2V–5.5V voltage translation.
● MAX3377E (Maxim Integrated): An octal transceiver with 1.65V–5.5V voltage support and integrated slew-rate control for EMI reduction in high-speed buses.
