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ST2349 Arkusz danych(PDF) 1 Page - STMicroelectronics

Numer części ST2349
Szczegółowy opis  4-bit dual supply level translator without direction control pin
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Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST2349 Arkusz danych(HTML) 1 Page - STMicroelectronics

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November 2007
Rev 3
1/23
23
ST2349
4-bit dual supply level translator
without direction control pin
Features
45 Mbps (max) data rate when driven by a
totem pole driver
4 Mbps (max) data rate when driven by an
open drain pole driver
Bi-directional level translation without
direction control pin
Wide VL voltage range of 1.65 to 3.6 V
Wide VCC voltage range of 1.80 to 5.5 V
Power down mode feature – when either
supply is off, all I/Os are in high impedance
Low quiescent current (max 24 µA)
Able to be driven by totem pole and open drain
drivers
5.5 V tolerant enable pin
ESD performance on all pins: ±2 kV HBM
Small package and footprint
QFN16 (2.6 x 1.8 mm) package
Applications
Low voltage system level translation
Mobile phones and other mobile devices
I2C level translation
UART level translation
Description
The ST2349 is a 4-bit dual supply level translator
which provides the level shifting capability to allow
data transfer in a multi-voltage system. Externally
applied voltages, VCC and VL, set the logic levels
on either side of the device. It utilizes
transmission gate-based design that allows bi-
directional level translation without a control pin.
The ST2349 accepts a VL from 1.65 to 3.6 V and
VCC from 1.80 to 5.5 V, making it ideal for data
transfer between low-voltage ASICs/PLD and
higher voltage systems. This device has a tri-state
output mode which can be used to disable all
I/Os.
The ST2349 supports power down mode when
VCC is grounded/floating and the device is
disabled via the OE pin.
QFN16L
(2.6 x 1.8 mm)
Table 1.
Device summary
Order code
Package
Packaging
ST2349QTR
QFN16 (2.6 x 1.8 mm)
Tape & reel (3000 parts per reel)
www.st.com


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