ST6G3238ETBR

Translators, Level Shifters Overview

The ST6G3238ETBR is a dual-supply CMOS level translator designed for SD, MiniSD, and T-Flash interfaces. It bridges 1.4 V to 3.6 V buses with ±8 kV contact discharge ESD protection on the card side. The device features balanced propagation delays of approximately 4.4 ns at 85 °C and low power dissipation with quiescent currents under 5 µA. It includes integrated pull-ups, an EMI filter, and series resistors. Directional control is managed via CMD-dir, DATA0-dir, and DAT123-dir inputs.

Translators, Level Shifters Feature Summary

• Provides bidirectional asynchronous communication between mixed-voltage data buses
• Features high-speed operation with balanced propagation delays
• Includes integrated ESD protection and transient voltage immunity
• Supports power-down protection on all inputs and outputs

Translators, Level Shifters Applications

• Interface between 3.3 V bus and 2.5 V or 1.8 V bus in mixed supply systems
• SD / MiniSD / T-Flash card slot level translation
• Two-way asynchronous communication between host and card drivers

Translators, Level Shifters Procurement Notes

Verify component authenticity through authorized channels as this part is marked obsolete. Confirm package integrity upon receipt, specifically checking for damage to the µTFBGA25 solder balls. Ensure storage conditions comply with moisture sensitivity levels prior to reflow soldering. Cross-reference ordering codes against official STMicroelectronics documentation to avoid counterfeit substitutions.

Translators, Level Shifters Selection Notes

Select this component when interfacing legacy memory cards with modern low-voltage controllers. It accommodates varying supply voltages from 1.4 V up to 3.6 V across separate domains. Consider its specific pinout for direction control signals if board space is constrained. Evaluate the trade-off between its high ESD ratings and the need for external filtering components in noisy environments.

Translators, Level Shifters Part Context

This device belongs to STMicroelectronics' dedicated interface solution portfolio for removable storage media. It utilizes sub-micron silicon gate technology to achieve high performance while maintaining low power consumption. The product line focuses on ensuring reliable data transfer in portable electronic devices requiring robust signal integrity between different logic voltage levels.

Translators, Level Shifters Replacement Considerations

ST6G3238ETTR (TSSOP24 package)

Translators, Level Shifters FAQ

How does the device determine the direction of data transmission?

Transmission direction is controlled by three dedicated input pins: CMD-dir, DATA0-dir, and DAT123-dir. Setting these pins HIGH enables A-to-B flow, while LOW enables B-to-A flow.

What is the maximum ESD protection rating for the card-side pins?

The B port, including CD and WP pins, offers ±8 kV contact discharge protection according to IEC 61000-4-2 standards, exceeding ±15 kV for Human Body Model testing.