PRELIMINARY TECHNICAL DATA
a
Low Voltage 1.2 V to 5.5 V,
Bidirectional, Logic Level Translators
Preliminary Technical Data
ADG3304
FEATURES
Bidirectional Level Translation
Operates from 1.2 V to 5.5 V
12 Bump WLCSP package and 14-lead TSSOP
Low Quiescent Current <5碌A(chǔ)
碌
APPLICATIONS
SPI
TM
, Microwire
TM
and I
2
C
TM
Translation
Low Voltage ASIC level Translation
Smart Card Readers
Cell Phones & Cell-Phone Cradles
Portable Communication Devices
Telecommunicatons Equipment
Network Switches and Routers
Storage Systems (SAN/NAS)
Computing/Server Applications
GPS
Portable POS Systems
Low Cost Serial Interfaces
FUNCTIONAL BLOCK DIAGRAM
VCCA
A1
A2
A3
A4
EN
GND
VCCY
Y1
Y2
Y3
Y4
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG3304 is a 4-Channel bidirectional level transla-
tor. Its function is to provide level shifting in a multi-
voltage system. The voltage applied to V
CCA
sets up the
logic levels on the A side of the device, while V
CCY
sets
the levels on the Y side. In this way, signals applied to the
V
CCA
side of the device appear as V
CCY
compatible logic
on the other side of the device and vice versa as the device
is designed to handle bidirectional signals. The device is
guaranteed for operation over the supply range 1.2 V to
5.5 V.
These devices are suited to applications like data transfer
between a low voltage DSP/Controller and a higher
voltage device. Other applications include high end
consumer products where constant changes to the chipset
desgins result in multiple supply levels in the application.
V
CCY
operates from +1.65 to 5.5 V while V
CCA
from +1.2
to V
CCY
. V
CCA
must always operate from a supply that is
lower than V
CCY
. When the device Enable pin (EN) is
pulled low, the Ax and Yx inputs/outputs are tri-stated.
The EN pin is driven high for normal operation. EN pin
is referred to V
CCA
voltage.
1.
2.
3.
Bidirectional Level Translation.
The ADG3304 is fully guaranteed from 1.2 V to
5.5 V supply range.
14 lead TSSOP and 12 lead WLCSP package.
REV. PrC Feb 2004
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P Box 9106, Norwood, MA 02062-9106, U.S.A.
.O.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2004
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