UM3302H_14 Datasheet, PDF (1/13 Pages) Union Semiconductor, Inc. – 2-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing and ESD Protection

UM3302H/UM3302Q
2-Bit Bidirectional Voltage-Level Translator with
Auto Direction Sensing and ±15kV ESD Protection
UM3302H CSP8 1.90×0.90
UM3302Q QFN8 1.40×1.20
General Description
The UM3302, an ESD protected level translator, provides the level shifting necessary to allow
data transfer in multi-voltage system. This 2-channel non-inverting translator uses two separate
configurable power-supply rails. The A port is designed to track V_CCA. V_CCA accepts any supply
voltage from 1.2V to 3.6V. The B port is designed to track V_CCB. V_CCB accepts any supply voltage
from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any
of the 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V voltage nodes. Both I/O ports are auto-sensing; thus,
no direction pin is required, making it ideal for data transfer between low-voltage ASICs /PLDs
and higher voltage systems.
The UM3302 operates at a guaranteed data rate of 20Mbps over the entire specified operating
voltage range. Within specific voltage domains, higher data rates are up to 100Mbps.
When the output-enable (OE) input is low, all outputs are placed in the high-impedance state. The
UM3302 is designed so that the OE input circuit is designed to track V_CCA.
To ensure the high-impedance state during power up or power down, OE should be tied to GND
through a pull down resistor; the minimum value of the resistor is determined by the
current-sourcing capability of the driver.
The UM3302H is a dual channel level translator available in 1.90mm×0.90mm CSP8 bump
package while UM3302Q is available in 1.40mm×1.20mm QFN8 package.
Applications
Features
 Low-Voltage ASIC Level Translation
 Cell-Phone Cradles
 Portable POS Systems
 Portable Communication Devices
 Low-Cost Serial Interfaces
 Cell-Phones
 GPS
 Telecommunications Equipment
 1.2V to 3.6V on A Port and 1.65V to 5.5V
on B Port (V_CCA ≤V_CCB)
 V_CC Isolation Feature – If Either V_CC
Input is at GND, All Outputs are in the
High-Impedance State
 OE Input Circuit Referenced to V_CCA
 Low Power Consumption
 Latch-Up Performance Exceeds 100mA
 ±15kV ESD Protection on B Ports
Pin Configurations
Top View
(Top View)
12
A
EBB
B
C
M: Month Code
UM3302H
D
CSP8 1.90×0.90
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http://www.union-ic.com Rev.08 Dec.2014
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