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UM3211P Dataheets PDF



Part Number UM3211P
Manufacturers Union Semiconductor
Logo Union Semiconductor
Description Bidirectional voltage level translator
Datasheet UM3211P DatasheetUM3211P Datasheet (PDF)

UM3211P Bidirectional voltage level translator for open-drain and General Description push-pull applications UM3211P SOT363 The UM3211P is a bidirectional voltage level translator operational from 1.0V to 3.6V (VCCA) and 1.8V to 5.5V (VCCB), which allows bidirectional voltage translations between 1.0V and 5V without the need for a direction pin in open-drain or push-pull applications. The UM3211P is a 1-bit level translator. Its transmission speeds are below 33MHz for an open-drain system wi.

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UM3211P Bidirectional voltage level translator for open-drain and General Description push-pull applications UM3211P SOT363 The UM3211P is a bidirectional voltage level translator operational from 1.0V to 3.6V (VCCA) and 1.8V to 5.5V (VCCB), which allows bidirectional voltage translations between 1.0V and 5V without the need for a direction pin in open-drain or push-pull applications. The UM3211P is a 1-bit level translator. Its transmission speeds are below 33MHz for an open-drain system with a 50pF capacitance and a pull-up resistor of 197Ω. The low ON-state resistance (Ron) of the switch allows connections to be made with minimal propagation delay. When EN is high, the translator switch is ON, and the A I/O is connected to the B I/O, allowing bidirectional data flow between ports. When EN is low, the translator switch is off, and a high-impedance state exists between ports. 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 1.5 ns maximum propagation  Smart Card Readers delay  Cell-phone Cradles  Low 3.5Ω ON-state connection between  Portable POS Systems input and output ports provides less signal  Portable Communication Devices distortion  Low-Cost Serial Interfaces  5V tolerant I/O ports to support  Cell-Phones mixed-mode signal operation  GPS  High-impedance A and B pins for  Telecommunications Equipment EN = LOW  Consumer Electronics  Latch up free operation  Household Appliances  Flow through pinout for ease of printed-circuit board trace routing  ESD protection exceeds: 4kV HBM per JESD22-A114  Package offered: SOT363 Pin Configurations Top View (Top View) M: Month Code UM3211P SOT363 ________________________________________________________________________ http://www.union-ic.com Rev.01 Dec.2013 1/10 UM3211P Pin Description Pin Number 1 2 3 4 5 6 Symbol A VCCA GND EN VCCB B Function Low-voltage side; connected to VCCA through a pull-up resistor Low-voltage side reference supply voltage for A Ground (0V) Switch enable input; connected to VCCB and pulled-up through a high resistor High-voltage side reference supply voltage for B High-voltage side; connected to VCCB through a pull-up resistor Ordering Information Part Number UM3211P Packaging Type SOT363 Marking Code UA3 Shipping Qty 3000pcs/7Inch Tape & Reel Absolute Maximum Ratings (Note 1) Over operating free-air temperature range (unless otherwise noted) Symbol Parameter VCCA Reference Voltage (A) VCCB Reference Voltage (B) VI Input Voltage Value -0.5 to +6 -0.5 to +6 -0.5(Note 2) to +6 Unit V V V VI/O Voltage on an input/output pin -0.5(Note 2) to +6 V Ich Channel Current (DC) +128 mA IIK Input Clamp Current Tstg Storage Temperature VI<0V -50 -65 to +150 mA °C Note 1: Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Note 2: The input and input/output negative voltage ratings may be exceeded if the input and input/output clamp current ratings are observed. ________________________________________________________________________ http://www.union-ic.com Rev.01 Dec.2013 2/10 UM3211P Recommended Operating Conditions Symbol VI/O Parameter Voltage on an input/output pin Conditions A, B VCCA (Note 3) Reference Voltage (A) VCCA VCCB (Note 3) Reference Voltage (B) VCCB VI(EN) Input Voltage on pin EN Isw(pass) Pass Switch Current Tamb Ambient Temperature Operating in free-air Note 3: VCCA ≤ VCCB −1 V for best results in level shifting applications. Electrical Characteristics Min 0 0 0 0 -40 Max Unit 5.5 V 5.5 V 5.5 V 5.5 V 64 mA +85 °C Tamb = −40 °C to +85 °C, unless otherwise specified. Symbol Parameter Conditions Min Typ (Note 4) Max Unit VIK Input Clamping Voltage IIH HIGH-level Input Current Input II = −18mA; VI(EN) = 0V VI= 5V; VI(EN) = 0V -1.2 V 5 uA Ci(EN) Capacitance on VI= 0V or 3V 12 pF pin EN Off-state A, B; Cio(off) Cio(on) input/output capacitance On-state input/output capacitance VO= 0V or 3V ; VI(EN) = 0V A, B; VO= 0V or 3V ; VI(EN) = 3V 10 12 pF 8 12.5 (Note 5) pF A, B; Ron ON-state resistance (Note 6) VI = 0V; IO = 64mA; VI(EN) = 4.5V(Note 7) A, B; VI = 2.4V; IO = 15mA; 1 2.5 4.5 5.0 7.5 VI(EN) = 4.5V Note 4: All typical values are at Tamb = 25°C. Note 5: Not production tested, maximum value based on characterization data of typical parts. Ω Note 6: Measured by the voltage drop between the A and B termi.


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