LSF0108DGSR

Translators, Level Shifters Overview

The LSF0108DGSR is an auto-bidirectional multi-voltage level translator in a 20-pin VSSOP package. It supports translation between 0.65 V and 5.5 V without a direction pin. The device handles up to 100-MHz up translation and greater than 100-MHz down translation at ≤30 pF capacitive load, or up to 40-MHz at 50 pF. It features low standby current, 5-V tolerant I/O for TTL support, and high-impedance pins when disabled.

Translators, Level Shifters Feature Summary

• Provides bidirectional voltage translation without requiring a dedicated direction control pin
• Supports both open-drain and push-pull interface configurations with low on-state resistance
• Features 5-V tolerant I/O ports compatible with TTL logic levels
• Offers high-impedance output state when the enable input is driven low

Translators, Level Shifters Applications

• GPIO, MDIO, PMBus, SMBus, SDIO, UART, I2C, and SPI interfaces in telecom infrastructure
• Enterprise systems requiring multi-voltage domain interfacing
• Communications equipment and industrial applications

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix 'DGSR' against the manufacturer's official orderable addendum to confirm the exact package type (VSSOP) and reel quantity specifications. Ensure the component meets RoHS compliance requirements for your target market. Confirm that the 20-pin VSSOP body dimensions align with your PCB footprint design guidelines before finalizing procurement.

Translators, Level Shifters Selection Notes

Select this component when interfacing devices operating at different voltage domains without complex directional control logic. It is suitable for applications requiring translation between 0.65 V and 5.5 V. Consider the capacitive load of the bus lines; ensure it remains within limits to maintain specified data rates. Verify that the low standby current meets power-sensitive system requirements.

Translators, Level Shifters Part Context

This part belongs to the Texas Instruments LSF family of auto-bidirectional voltage translators. Unlike buffer-based translators, these devices utilize transmission gates for signal switching. The family is designed to simplify system design by eliminating the need for external direction pins, making it ideal for protocols like I2C and SMBus where automatic direction detection is beneficial.

Translators, Level Shifters Replacement Considerations

LSF0108PW: Same function in TSSOP-20 package. LSF0108RKS: Same function in VQFN-20 package. TXS0108E: Buffer-based alternative requiring direction pin control.