ST6G3244ME datasheet(5/27 Pages) STMICROELECTRONICS

Part #	ST6G3244ME

Description	Level translator for SD, SDIO, mini SD, and micro SD Cards with internal I/O supply and ±15 kV ESD protection

PDF	27 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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5 / 27 page

ST6G3244ME

Description

Doc ID 022157 Rev 2

5/27

Description

The ST6G3244ME is a dual supply, low voltage 6-bit bi-directional CMOS level translator for

SD, mini SD and micro SD Cards. Designed for use as an interface between baseband and

memory cards, it achieves high speed operation while maintaining CMOS low-power

dissipation.

The A-port is designed to track VCCA. The internal LDO is powered by VBAT and provides

a power supply of either 1.8 V or 2.9 V to the B-side I/Os (programmed by the SEL pin).

The B-port is designed to track VCCB. The VCCB voltage can be also used externally. When

VCCB = 0 V, there is no additional leakage seen on VCCA. All outputs are push-pull type.

This device is intended for two-way asynchronous communication between data buses.

The direction of data transmission is determined by CMD.dir, DAT0.dir and DAT123.dir

inputs.

All inputs are equipped with protection circuits against electrostatic discharge, giving them

±2 kV (on A-side) and ±15 kV (on B-side, CD and WP) ESD and transient excess voltage

immunity.

ST6G3244ME Datasheet(PDF) 5 Page - STMicroelectronics