UM2002_15 Datasheet, PDF (1/12 Pages) Union Semiconductor, Inc. – Bidirectional Voltage Level Translator for Open-Drain and Push-Pull Applications

UM2002
Bidirectional Voltage Level Translator for Open-Drain and
Push-Pull Applications
UM2002S8 SOP8
UM2002U8 TSSOP8
General Description
The UM2002 is a bidirectional voltage level translator operational from 1.0V to 3.6V (V_ref(A)) and
1.8V to 5.5V (V_ref(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 197Ω.
The translators provide excellent ESD protection to lower voltage devices, and at the same time
protect less ESD-resistant devices.
Applications
Features
 SPI, MICROWIRE and I²C Level  Provides Bidirectional Voltage Translation
Translation
with No Direction Pin
 Low-Voltage ASIC Level Translation  Less than 1.5ns Maximum Propagation
 Smart Card Readers
Delay
 Cell-Phone Cradles
 Allows Voltage Level Translation between:
 Portable POS Systems
 Portable Communication Devices
 Low-Cost Serial Interfaces
 Cell-Phones
 GPS
 Telecommunications Equipment
 Consumer Electronics
 Household Appliances
1). 1.0V V_ref(A) and 1.8V, 2.5V, 3.3V or 5V
V_ref(B)
2). 1.2V V_ref(A) and 1.8V, 2.5V, 3.3V or 5V
V_ref(B)
3). 1.8V V_ref(A) and 3.3V or 5V V_ref(B)
4). 2.0V V_ref(A) and 5V V_ref(B)
5). 3.3V V_ref(A) and 5V V_ref(B)
 Low 3.5Ω ON-State Connection between
Input and Output Ports Provides Less
Signal Distortion
 5V Tolerant I/O Ports to Support
Mixed-Mode Signal Operation
 High-Impedance An and Bn Pins for
EN=LOW
 Lock-up Free Operation
 Flow through Pinout for Ease of
Printed-Circuit Board Trace Routing
 ESD Protection Exceeds:
4kV HBM per JESD22-A114
200V MM per JESD22-A115
1000V CDM per JESD22-C101
 Packages Offered: SOP8, TSSOP8
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http://www.union-ic.com Rev.05 Nov.2014
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