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PDF ST6G3238E Data sheet ( Hoja de datos )
| Número de pieza | ST6G3238E | |
| Descripción | Dual Supply Level Translator | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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ST6G3238E
Dual Supply Level Translator for SD/ MINISD/ T-FLASH
With ±8KV Contact Discharge ESD Protection
Features
■ HIGH SPEED: tPD = 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
■ 26Ω SERIES RESISTOR ON A SIDE
■ EMI FILTER ON B SIDE
■ INTEGRATED PULL-UP AND PULL-DOWN
RESISTOR ON B SIDE
■ OPERATING VOLTAGE RANGE:
– VCCA (OPR) = 1.4V to VCCB
– VCCB (OPR) = 1.4V to 3.6V
■ LATCH-UP PERFORMANCE EXCEEDS
500mA (JESD17)
■ ESD PROTECTION FOR CARD SIDE (B
PORT, CD and WP pins) ±8kV, IEC 61000-4-2
ESD OR CONTACT DISCHARGE:
HBM > ±15kV (MIL STD 883 method 3015);
■ ESD PROTECTION FOR A-PORT:
HBM > ±2kV (MIL STD 883 method 3015);
■ ROHS Compliant for µTFBGA25 Package
Order Codes
TSSOP24
µTFBGA25
Description
The ST6G3238E is a dual supply low voltage
CMOS Level Translator for SD/ MiniSD/ T-Flash
fabricated with sub-micron silicon gate and five-
layer metal wiring C2MOS technology. Designed
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
and 2.5V/1.8V supply systems, it achieves high
speed operation while maintaining the CMOS low
power dissipation. The A port is designed to track
VCCA. The B port is designed to track VCCB.
This device is intended for two-way asynchronous
communication between data buses and the
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 ±2kV (on A-
side except CD and WP pins) and ±15kV 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.
Part Number
ST6G3238E
ST6G3238E
Package
TSSOP24
µTFBGA25
Tape and Reel
ST6G3238ETTR
ST6G3238ETBR
February 2006
Rev 2
1/17
www.st.com
17
1 page  
ST6G3238E
Pin Connection and Function
2.1
Pin Function
● CMD, Command is a bi-directional line. The host and card drivers are operating in push-
pull.
● DAT0-3, Data lines are bi-directional lines. The host and the card drivers are operating in
push-pull mode.
● CLK, Clock is a host to card signal. CLK operates in push-pull mode.
● Feedback (return) Clock is feedback clock signal from level shifter to host for controlling
delays.
● CD, Card detect, pulls HIGH state of input to VCCA. This pin is protected against ESD up to
8kV contact.
● WP, Write protect, pulls HIGH state of input to VCCA. This pin is protected against ESD up
to 8kV contact.
Table 3. Pin Description
µTFBGA Pin N° TSSOP Pin N°
Type
A2 3 I
D2 4 I/O
D4 22 I/O
A3 1 I
D1 5 I/O
D5 21 I/O
E3 15 I
E1
A1
B1
E5
A5
B5
C1
C5
E2
D3
E4
B3
B4
C3, C4
A4, B2, C2
6
7
8
20
19
18
10
17
9
23
16
2
24
11, 14
12, 13
I/O
I/O
I/O
I/O
I/O
I/O
I
O
O
-
-
-
-
-
-
Side
A-side
A-side
B-Side
A-Side
A-Side
B-Side
A-Side
A-Side
A-Side
A-Side
B-Side
B-Side
B-Side
A-Side
B-Side
A-Side
A-Side
A-Side
A-Side
B-Side
-
-
Symbol
Name and Function
CMD-dir
Command direction
HIGH = A to B
LOW = B to A
CMD.h A-side Command
CMD B-side Command
DAT0-dir
Data Direction
HIGH = A to B (write)
LOW = B to A (read)
DAT0.h Data Input / Output
DAT0 Data Input / Output
Data Direction
DAT123-dir HIGH = A to B (write)
LOW = B to A (read)
DAT1.h Data Input / Output
DAT2.h Data Input / Output
DAT3.h Data Input / Output
DAT1 Data Input / Output
DAT2 Data Input / Output
DAT3 Data Input / Output
CLK.h Clock Input
CLK Clock Output
CLK-f Clock Feedback
CD Card Detect
WP Write Protect
VCCA Power supply
VCCB Power supply
GND Ground (0V)
NC No connect
5/17
5 Page 
ST6G3238E
6 I/O and Test Circuit
Figure 3. Input and Output Equivalent Circuit
I/O and Test Circuit
Figure 4. Test Cicuit
Table 11. Test Values
Test
tPLH, tPHL
tPZL, tPLZ (VCC = 3.0 to 3.6V)
tPZL, tPLZ (VCC = 2.3 to 2.7V or VCC = 1.6 to 1.95V)
tPZH, tPHZ
Switch
Open
6V
2VCC
GND
11/17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet ST6G3238E.PDF ] | |
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