ST ST6G3238BE Dual Supply Level Translator for SD/MiniSD/T-Flash with ±8kV Contact Discharge ESD Protection
Summary
The ST6G3238BE is a robust dual-supply low voltage CMOS Level Translator specifically designed for interfacing SD, MiniSD, and T-Flash memory modules. This IC efficiently translates voltage levels between mixed bus systems (e.g., 3.3V to 1.8V or 2.5V), simplifying complex hardware integration. It features high-speed operation, low power dissipation, and industry-leading ESD protection (up to ±15kV) for reliable data transmission in demanding environments. Ideal for embedded systems requiring stable, protected memory interfacing.
Page 1 Text Content
ST6G3238BE
Dual supply level translator for SD/ MINISD/ T-FLASH With ±8KV contact discharge ESD protection
Features High speed: t PD = 4.4ns (Typ.) at TA = 85°C VCCB = 2.7V VCCA = 1.8V Low power dissipation: ICCA = ICCB = 5µA (Max.) at TA = 85°C Balanced propagation delays: TPLH ≈ TPHL Power down protection on inputs and outputs
µTFBGA25
26Ω series resistor on A-Side EMI filter on B side Integrated pull-up and pull-down resistor on B side Description Operating voltage range:
The ST6G3238BE is a dual supply low voltage
VCCA (Opr) = 1.4V to VCCB
CMOS Level Translator for SD/ Mini SD/ T-Flash
VCCB (Opr) = 1.4V to 3.6V
fabricated with sub-micron silicon gate and five- Latch-up performance exceeds 500m A layer metal wiring C2MOS technology. Designed (JESD17) for use as an interface between a 3.3V bus and a 2.5V or 1.8V bus in a mixed 3.3V/1.8V, 3.3V/2.5V
ESD protection for card side (B port, CD and
and 2.5V/1.8V supply systems, it achieves high
WP pins) ±8k V, IEC 61000-4-2 ESD or contact
speed operation while maintaining the CMOS low
discharge:
power dissipation. The A port is designed to track
HBM > ±15k V (MIL STD 883 method 3015);
VCCA. The B port is designed to track VCCB.
ESD protection for A-port:
This device is intended for two-way asynchronous
HBM > ±2k V (MIL STD 883 method 3015);
communication between data buses and the
ROHS Compliant for µTFBGA25 Package
direction of data transmission is determined by CMD-dir/ DATA0-dir/ DAT123-dir inputs. The B- port interfaces with the 3V bus, the A-port with the 2.5V and 1.8V bus. All inputs are equipped with protection circuits against static discharge, giving them ±2k V (on A- side except CD and WP pins) and ±15k V on (B side, CD and WP pins) ESD immunity and transient excess voltage. See the section on integrated ESD protections and resistors for more information.
Order code Part Number Package Packaging
ST6 G3238BE µTFBGA25 Tube ST6G 3238BETBR µTFBGA25 Tape and Reel
March 2007 Rev 1 1/17
17www.st.com
Page Summary Contents For ST ST6G3238BE Dual Supply Level Translator for SD/MiniSD/T-Flash with ±8kV Contact Discharge ESD Protection
Manual Details
| Brand | Dual |
|---|---|
| Pages | 17 |
| File Size | 297.14 KB |
| Published | May 20, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What voltage buses does this level translator support?
It is designed to interface between a 3.3V bus (B port) and either a 2.5V or 1.8V bus (A port).
How robust is the ESD protection on the different data ports?
The B-port can track >±15kV, while the A-port has protection up to ±2kV for most non-CD/WP pins.
What determines the direction of data transmission?
Data transfer direction is specifically determined by the CMD-dir, DATA0-dir, and DAT123-dir inputs.
What is the low power dissipation rating at 85°C?
The maximum current draw (I) during operation is limited to 5µA at T = 85°C.