ST6G3244ME Level translator for SD, SDIO, mini SD, micro SD cards with internal I/O supply and 15kV ESD protection

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 VBATand 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 VCCBvoltage 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

技术特性

Supports 60 MHz clock rate
Supports DDR mode for SD Card™
Compliant with
- SD Specification Part 1 Physical Layer Specification 3.00 (SDR12, SDR25, DDR50)
- SD Specification Part 1 Physical Layer Specification 2.00
Bi-directional with direction control pin
Balanced propagation delays: tPLH≈ tPHL
LDO power-down support. When the LDO is powered down, VCCBis pulled to GND via the 130 Ω resistor. When VCCB= 0 V, there is no additional leakage seen on VCCA.
EMI filtering and signal conditioning
Supports both 1.8 V and 2.9 V data translation on card side
Integrated LDO to supply 1.8 V or 2.9 V power for B-side I/Os (pin-selectable); can be used also externally
Integrated pull-up and pull-down resistors on B-side
Operating voltage range
- VCCA= 1.62 V to 1.98 V
- VBAT= 3.0 V to 5.0 V
Latch-up performance exceeds 100 mA (JEDEC Standard 78)
ESD protection for card side (B-port, CD and WP pins)
- ±8 kV contact discharge (IEC61000-4-2)
- ±15 kV air-gap discharge (IEC61000-4-2)
ESD protection for host side (A-side)
- ±2 kV HBM (JEDEC 22-A114)
- ±200 V MM (JEDEC 22-A115)
Operating temperature range –40 °C to +85 °C
Space-saving Flip Chip 25 package (2 x 2 x 0.605 mm, 0.4 mm bump pitch)
RoHS compliant, lead-free soldering capable

ST6G3244ME 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
ST6G3244MEBJR	Active		1000	CSPS0.4 BP 17-36	Tape And Reel	-40 °C-85 °C	ST6G3244MEBJR

DATASHEET

描述	版本	大小
ST6G3244ME : DS8629: Level translator for SD, SDIO, mini SD, and micro SD Cards with internal I/O supply and ±15 kV ESD protection	2	658KB