Low Voltage, 1.15 V to 5.5 V, 4-Channel,
Bidirectional Logic Level Translator
ADG3304-EP
FUNCTIONAL BLOCK DIAGRAM
FEATURES
V
V
CCY
Bidirectional level translation
Operates from 1.15 V to 5.5 V
Low quiescent current < 5 μA
No direction pin
Supports defense and aerospace applications
(AQEC standard)
Military temperature range: −55°C to +125°C
Controlled manufacturing baseline
One assembly and test site
CCA
A1
A2
A3
A4
EN
Y1
Y2
Y3
Y4
One fabrication site
Enhanced product change notification
Qualification data available on request
GND
Figure 1.
APPLICATIONS
SPI®, MICROWIRE™ level translation
Low voltage ASIC level translation
Smart card readers
Cell phones and cell phone cradles
Portable communications devices
Telecommunications equipment
Network switches and routers
Storage systems (SAN/NAS)
GENERAL DESCRIPTIONS
logic levels applied to the Y side of the device appear as VCCA
compatible logic levels on the A side.
-
The ADG3304-EP is a bidirectional logic level translator that
contains four bidirectional channels. It can be used in
multivoltage digital system applications, such as data transfer,
between a low voltage digital signal processing controller and a
higher voltage device using SPI and MICROWIRE interfaces.
The internal architecture allows the device to perform
bidirectional logic level translation without an additional signal
to set the direction in which the translation takes place.
The enable pin (EN) provides three-state operation on both the
A side and the Y side pins. When the EN pin is pulled low, the
terminals on both sides of the device are in the high impedance
state. The EN pin is referred to the VCCA supply voltage and
driven high for normal operation.
The ADG3304-EP is available in compact 14-lead TSSOP
package.
The voltage applied to VCCA sets the logic levels on the A side of
the device, while VCCY sets the levels on the Y side. For proper
operation, VCCA must always be less than VCCY. The VCCA-com-
patible logic signals applied to the A side of the device appear as
Full details about this enhanced product are available in the
ADG3304 data sheet, which should be consulted in conjunction
with this data sheet.
VCCY-compatible levels on the Y side. Similarly, VCCY-compatible
Rev. 0
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