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Union Semiconductor

UM2002 Datasheet Preview

UM2002 Datasheet

Bidirectional Voltage Level Translator

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UM2002
Bidirectional Voltage Level Translator for Open-Drain and
General Description
Push-Pull Applications
UM2002S8 SOP8
UM2002U8 TSSOP8
The UM2002 is a bidirectional voltage level translator operational from 1.0V to 3.6V (Vref(A)) and
1.8V to 5.5V (Vref(B)), which allows bidirectional voltage translations between 1.0V and 5V
without the need for a direction pin in open-drain or push-pull applications. Bit widths ranging
from 1-bit or 2-bit are offered for level translation application with transmission speeds < 33 MHz
for an open-drain system with a 50 pF capacitance and a pull-up of 197.
The translators provide excellent ESD protection to lower voltage devices, and at the same time
protect less ESD-resistant devices.
Applications
Features
z SPI, MICROWIRE and I2C Level z Provides Bidirectional Voltage Translation
Translation
with No Direction Pin
z Low-Voltage ASIC Level Translation z Less than 1.5ns Maximum Propagation
z Smart Card Readers
Delay
z Cell-Phone Cradles
z Allows Voltage Level Translation between:
z Portable POS Systems
z Portable Communication Devices
z Low-Cost Serial Interfaces
z Cell-Phones
z GPS
z Telecommunications Equipment
z Consumer Electronics
z Household Appliances
1). 1.0V Vref(A) and 1.8V, 2.5V, 3.3V or 5V
Vref(B)
2). 1.2V Vref(A) and 1.8V, 2.5V, 3.3V or 5V
Vref(B)
3). 1.8V Vref(A) and 3.3V or 5V Vref(B)
4). 2.0V Vref(A) and 5V Vref(B)
5). 3.3V Vref(A) and 5V Vref(B)
z Low 3.5ON-State Connection between
Input and Output Ports Provides Less
Signal Distortion
z 5V Tolerant I/O Ports to Support
Mixed-Mode Signal Operation
z High-Impedance An and Bn Pins for
EN=LOW
z Lock-up Free Operation
z Flow through Pinout for Ease of
Printed-Circuit Board Trace Routing
z ESD Protection Exceeds:
4kV HBM per JESD22-A114
200V MM per JESD22-A115
1000V CDM per JESD22-C101
z Packages Offered: SOP8, TSSOP8
________________________________________________________________________
http://www.union-ic.com Rev.06Dec.2016
1/13




Union Semiconductor

UM2002 Datasheet Preview

UM2002 Datasheet

Bidirectional Voltage Level Translator

No Preview Available !

Pin Configurations
(Top View)
Top View
UM2002
(Top View)
XX: Week Code
UM2002S8
SOP8
Pin Description
XX: Week Code
UM2002U8
TSSOP8
Pin Number
1
2
3,4
5,6
7
8
Symbol
GND
VREFA
A1,A2
B1,B2
VREFB
EN
Function
Ground (0V)
Low-voltage side reference supply voltage for An
Low-voltage side; connected to VREFA through a pull-up
resistor
High-voltage side; connected to VREFB through a pull-up
resistor
High-voltage side reference supply voltage for Bn
Switch enable input; connected to VREFB and pulled-up
through a high resistor
Ordering Information
Part Number
UM2002S8
UM2002U8
Packaging Type
SOP8
TSSOP8
Marking Code
UM2002S8
2002U8
Shipping Qty
2500pcs/13Inch
Tape & Reel
3000pcs/13Inch
Tape & Reel
________________________________________________________________________
http://www.union-ic.com Rev.06Dec.2016
2/13


Part Number UM2002
Description Bidirectional Voltage Level Translator
Maker Union Semiconductor
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