PI4ULS5V202 Datasheet, PDF (1/11 Pages) Pericom Semiconductor Corporation – 2-Bit Bi-directional Level Shifter with Automatic Sensing & Ultra Tiny Package

PI4ULS5V202
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2-Bit Bi-directional Level Shifter with
Automatic Sensing & Ultra Tiny Package
Features
 V_CCA can be Less than, Greater than or Equal to
V_CCB
 1.2V to 5.5V on A Port and 1.2V to 5.5V on B Port
 High−Speed with 20 Mb/s Data Rate for push-pull
application
 High−Speed with 2 Mb/s Data Rate for open-drain
application
 No Direction-Control Signal Needed
 Low Bit-to-Bit Skew
 Non-preferential Power-up Sequencing
 ESD protection exceeds 8KV HBM per JESD22-
A114
 Integrated 10 kΩ Pull-up Resistors
 Package: UDFN1.2x1.6-8L and MSOP-8L
Description
The PI4ULS5V202 is a 2-bit configurable dual
supply bidirectional auto sensing translator that does not
require a directional control pin. The A and B ports are
designed to track two different power supply rails, V_CCA
and V_CCB respectively. Both the V_CCA and V_CCB supply
rails are configurable from 1.2V to 5.5V. This allows
voltage logic signals on the V_CCA side to be translated
into lower, higher or equal value voltage logic signals on
the V_CCB side, and vice-versa.
The translator has integrated 10 kΩ pull-up resistors
on the I/O lines. The integrated pull-up resistors are used
to pull-up the I/O lines to either V_CCA or V_CCB. The
PI4ULS5V202 is an excellent match for open-drain
applications such as the I²C communication bus.
Applications
 I²C, SMBus, MDIO
 Low Voltage ASIC Level Translation
 Mobile Phones, PDAs, Camera
Pin Configuration
V_CCA
A1
A2
GND
V_CCB
B1
B2
EN
UDFN1.2x1.6-8L
VccA
A1
A2
GND
VccB
B1
B2
EN
MSOP-8L
Pin Description
Pin Pin Type
Description
No Name
1
V_CCA
Power
A-port supply voltage.1.2V ≤
V_CCA ≤ 5.5 V
2
A1
I/O
Input/output A. Referenced to
V_CCA.
3
A2
I/O
Input/output A. Referenced to
V_CCA
4 GND GND Ground.
Output enable (active High). Pull
5
EN Input EN low to place all outputs in 3-
state mode.
6
B2
I/O Input/output B. Referenced to V_CCB
7
B1
I/O Input/output B. Referenced to V_CCB
8
V_CCB
Power
B-port supply voltage. 1.2 V ≤
V_CCB ≤ 5.5V
2015-07-0023
PT0461-3 07/28/15
1