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Numéro de sérieFXLA102
CategorieDiscrete => Transistors => Bipolar
DescriptionLow Voltage Dual Supply 2-Bit Voltage Translator With Auto Direction Sensing
The FXLA102 is a configurable dual-voltage-supplytranslator designed for both uni-directional and bidirectional voltage translation between two logic levels. The device allows translation between voltages as high as 3.6V to as low as 1.1V. The A port tracks the VCCA level, and the B port tracks the VCCB level. This allows for bi-directional voltage translation over a variety of voltage levels: 1.2V, 1.5V, 1.8V, 2.5V and 3.3V.
SociétéFairchild Semiconductor
DatasheetTélécharger FXLA102 datasheet
 
 
  • Description courte
  • FXLA102 Low Voltage Dual Supply 2-Bit Voltage Translator with Configurable Voltage Supplies and Signal Levels, 3-State Outputs, and Auto Direction Sensing

    Features

    The is a configurable dual-voltage-supply translator designed for both uni-directional and bidirectional voltage translation between two logic levels. The device allows translation between voltages as high to as low as 1.1V. The A port tracks the VCCA level, and the B port tracks the VCCB level. This allows for bi-directional voltage translation over a variety of voltage levels: 1.8V, 2.5V and 3.3V. The device remains in 3-state until both VCCs reach active levels, allowing either VCC to be powered-up first. Internal power down control circuits place the device 3-state if either VCC is removed. The OE input, when high, disables both the A and B ports by placing them a 3-state condition. The OE input is supplied by VCCA. The FXLA102 supports bi-directional translation without the need for a direction control pin. The two ports of the device have auto-direction sense capability. Either port may sense an input signal and transfer as an output signal to the other port.

    to 3.6V. Fully configurable: Inputs and outputs track VCC level. Non-preferential power-up; either VCC may be powered-up first. Outputs remain in 3-state until active VCC level is reached. Outputs switch 3-state if either VCC is at GND. Power off protection Bushold on data inputs eliminates the need for pull-up or pull-down resistors Control input (OE) is referenced to VCCA voltage. Packaged in 8-terminal leadless MicroPak x 1.6mm) Direction control not needed. 100 Mbps throughput when translating between 1.8V and 2.5V. ESD protection exceeds: ­ 15kV HBM (B port I/O to GND) (per JESD22-A114 & Mil Std ­ 8kV HBM (A port I/O to GND) (per JESD22-A114 & Mil Std ­ 2kV CDM (per ESD STM 5.3)

    Description

    A Side Power Supply A Side Inputs or 3-State Outputs Output Enable Input A Side Inputs or 3-State Outputs B Side Power Supply

    FXL translators offer an advantage in that either VCC may be powered up first. This benefit derives from the chip design. When either VCC at 0 volts, outputs are in a high-impedance state. The control input (OE) is designed to track the VCCA supply. A pull-up resistor tying OE to VCCA should be used to ensure that bus contention, excessive currents, or oscillations do not occur during power-up/power-down. The size of the pull-up resistor is based upon the current-sinking capability of the device driving the OE pin. The recommended power-up sequence is the following: 1. Apply power to the first VCC. 2. Apply power to the second VCC. 3. Drive the OE input LOW to enable the device. The recommended power-down sequence is the following: 1. Drive OE input HIGH to disable the device. 2. Remove power from either VCC. 3. Remove power from other VCC.

    Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

    VCCA, VCCB VI Supply Voltage DC Input Voltage I/O Port A I/O Port B Control Input (OE) Output Voltage(2) Outputs 3-STATE Outputs Active (An) Outputs Active (Bn)

    DC Input Diode Current 0V DC Output Diode Current VO > VCC DC Output Source/Sink Current DC VCC or Ground Current per Supply Pin Storage Temperature Range

    Note: 1. IO Absolute Maximum Rating must be observed.

    The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings.

    VCCA or VCCB VI Power Supply Operating Input Voltage I/O Port A I/O Port B Control Inputs(OE)

    Dynamic Output Current IOH/IOL with VCC to 1.4V Static Output Current IOH/IOL with VCC / V Free Air Operating Temperature Maximum Input Edge Rate VCCA/B to 3.6V

    Note: 2. All unused inputs and I/O pins must be held at VCCI or GND.