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© 2004 Fairchild Semiconductor Corporation DS500892 www.fairchildsemi.com June 2004 Revised June 2004 FXL5T244 Low Voltage Dual Supply 5-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs FXL5T244 Low Voltage Dual Supply 5-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs General Description The FXL5T244 is a configurable dual-voltage-supply trans- lator designed for one-way (unidirectional) voltage transla- tion of signals between two voltage levels. The device allows translation between voltages as high as 3.6V to as low as 1.1V. A Inputs and the OE Control Pin track the VCCI level, and Y Outputs track the VCCO level. Both inputs and outputs are designed to accept supply voltage levels from 1.1V to 3.6V. This allows for unidirectional voltage transla- tion over a variety of voltage levels: 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. The device remains in 3-STATE until both VCC s reach active levels allowing either VCC to be powered-up first. The device also contains power down control circuits that place the device in 3-STATE if either VCC is removed. The OE input, when HIGH, disables the outputs by placing them in 3-STATE condition.
Features
■ One-way (unidirectional) translation between any 2 levels from 1.1V to 3.6V ■ Fully configurable, inputs and outputs track respective VCC levels ■ Non-preferential power-up sequencing; either VCC may be powered-up first ■ Outputs remain in 3-STATE until active VCC level is reached ■ Outputs switch to 3-STATE if either VCC is at GND ■ Power-off protection ■ Control input (OE ) level is referenced to VCCI voltage ■ Packaged in 14-terminal DQFN (2.5mm x 3.0mm) package ■ ESD protection exceeds:
- 4kV HBM ESD (per JESD22-A114 & Mil Std 883e 3015.7)
- 8kV HBM I/O to GND ESD (per JESD22-A114 & Mil Std 883e 3015.7)
- 1kV CDM ESD (per ESD STM 5.3)
- 200V MM ESD (per JESD22-A115 & ESD STM5.2) Ordering Code: Order Number Package Number Package Description FXL5T244BQX MLP014A 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm
www.fairchildsemi.com 2 FXL5T244 Terminal Descriptions Truth Table H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care Connection Diagram Terminal Assignments for DQFN (Top View) Terminal Assignment Power-Up/Power-Down Sequencing FXL translators offer an advantage in that either VCC may be powered up first. This benefit derives from the chip design. When either VCC is at 0 volts, outputs are in a HIGH-Impedance state. The control input, OE , is designed to track the VCCI supply. A pull-up resistor tying OE to VCCI 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 OE driver. The recommended power-up sequence is the following: 1. Apply power to either VCC . 2. Apply power to the OE input (Logic HIGH for A-to-B operation; Logic LOW for B-to-A operation) and to the respective data inputs (A Port or B Port). This may occur at the same time as Step 1. 3. Apply power to other VCC . 4. 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 . Terminal Names
Description
Terminal Number Terminal Name 1V CCI 2A 0 3A 1 4A 2 5A 3 6A 4 7G N D 8O E 9Y 4
10 Y 3
11 Y 2
12 Y 1
13 Y 0
14 V CCO
3 www.fairchildsemi.com FXL5T244 Absolute Maximum Ratings(Note 1) Recommended Operating Conditions (Note 3) Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Note 2: IO Absolute Maximum Rating must be observed. Note 3: All unused inputs must be held at VCCI or GND. Supply Voltage VCCI −0.5V to +4.6V VCCO −0.5V to +4.6V DC Input Voltage (VI) −0.5V to +4.6V Output Voltage (VO ) (Note 2) Outputs 3-STATE −0.5V to +4.6V Outputs Active −0.5V to VCCO + 0.5V DC Input Diode Current (IIK) VI < 0V −50 mA DC Output Diode Current (IOK ) VO < 0V −50 mA VO > VCC +50 mA DC Output Source/Sink Current (IOH /IOL ) −50 mA / +50 mA DC V CC or Ground Current per Supply Pin (ICC or GND) ±100 mA Storage Temperature Range (TSTG ) −65°C to +150°C Power Supply Operating (VCCI or VCCO ) 1.1V to 3.6V Input Voltage An 0.0V to 3.6V Control Inputs (OE ) 0.0V to 3.6V Output Current in IOH /IOL VCCO = 3.0V to 3.6V ±24 mA VCCO = 2.3V to 2.7V ±18 mA VCCO = 1.65V to 1.95V ±6 mA VCCO = 1.4V to 1.65V ±2 mA VCCO = 1.1V to 1.4V ±0.5 mA Free Air Operating Temperature (TA) −40°C to +85°C Minimum Input Edge Rate (∆V/∆t) VCCA/B = 1.1V to 3.6V 10 ns/V Symbol Parameter Conditions VCCI VCCO Min Max Units (V) (V) VIH High Level Input Voltage 2.7 - 3.6 1.1 - 3.6 2.0 V 2.3 - 2.7 1.6 1.65 - 2.3 0.65 x V CCI 1.4 - 1.65 0.65 x V CCI 1.1 - 1.4 0.9 x V CCI VIL Low Level Input Voltage 2.7 - 3.6 1.1 - 3.6 0.8 V 2.3 - 2.7 0.7 1.65 - 2.3 0.35 x V CCI 1.4 - 1.65 0.35 x V CCI 1.1 - 1.4 0.1 x V CCI V IOH = −12 mA 2.7 2.7 2.2 IOH = −18 mA 3.0 3.0 2.4 IOH = −24 mA 3.0 3.0 2.2 IOH = −6 mA 2.3 2.3 2.0 IOH = −12 mA 2.3 2.3 1.8 IOH = −18 mA 2.3 2.3 1.7 IOH = −6 mA 1.65 1.65 1.25 IOH = −2 mA 1.4 1.4 1.05 IOH = −0.5 mA 1.1 1.1 0.75 x V CC0
www.fairchildsemi.com 4 FXL5T244 Note 4: Don ’t Care = Any valid logic level. Note 5: Reflects current per supply, VCCI or VCCO . Symbol Parameter Conditions VCCI VCCO Min Max Units (V) (V) V IOL = 12 mA 2.7 2.7 0.4 IOL = 18 mA 3.0 3.0 0.4 IOL = 24 mA 3.0 3.0 0.55 IOL = 12 mA 2.3 2.3 0.4 IOL = 18 mA 2.3 2.3 0.6 IOL = 6 mA 1.65 1.65 0.3 IOL = 2 mA 1.4 1.4 0.35 IOL = 0.5 mA 1.1 1.1 0.3 x V CCI II Input Leakage Current V I = VCCI or GND 1.1 - 3.6 3.6 ±1.0 µA IOFF Power Off Leakage Current A n, OE = 0V to 3.6V 0 3.6 ±10.0 µA Yn = 0V to 3.6V 3.6 0 ±10.0 IOZ 3-STATE Output Leakage OE = VIH 3.6 3.6 ±10.0 µA(Note 4) 0 ≤ VO ≤ 3.6V OE = Don’t Care 0 3.6 +10.0 VI = VIH or VIL OE = Don’t Care 3.6 0 +10.0 ICCI Quiescent Supply Current V I = VCCI or GND; IO = 0 0 1.1 - 3.6 −10.0 µA VI = VCCI or GND; IO = 0 1.1 - 3.6 0 10.0 µA ICCO Quiescent Supply Current V I = VCCO or GND; IO = 0 1.1 - 3.6 0 −10.0 µA VI = VCCO or GND; IO = 0 0 1.1 - 3.6 10.0 µA ∆ICCI/O Increase in ICC per Input; V IH = 3.0 3.6 3.6 500 µA Other Inputs at VCC or GND
5 www.fairchildsemi.com FXL5T244 Capacitance Symbol Parameter TA = −40°C to +85°C UnitsVCCO = 3.0V to 3.6V VCCO = 2.3V to 2.7V VCCO = 1.65V to 1.95V VCCO = 1.4V to 1.6V VCCO = 1.1V to 1.3V Min Max Min Max Min Max Min Max Min Max Symbol Parameter TA = −40°C to +85°C UnitsVCCO = 3.0V to 3.6V VCCO = 2.3V to 2.7V VCCO = 1.65V to 1.95V VCCO = 1.4V to 1.6V VCCO = 1.1V to 1.3V Min Max Min Max Min Max Min Max Min Max Symbol Parameter TA = −40°C to +85°C UnitsVCCO = 3.0V to 3.6V VCCO = 2.3V to 2.7V VCCO = 1.65V to 1.95V VCCO = 1.4V to 1.6V VCCO = 1.1V to 1.3V Min Max Min Max Min Max Min Max Min Max Symbol Parameter TA = −40°C to +85°C UnitsVCCO = 3.0V to 3.6V VCCO = 2.3V to 2.7V VCCO = 1.65V to 1.95V VCCO = 1.4V to 1.6V VCCO = 1.1V to 1.3V Min Max Min Max Min Max Min Max Min Max Symbol Parameter TA = −40°C to +85°C UnitsVCCO = 3.0V to 3.6V VCCO = 2.3V to 2.7V VCCO = 1.65V to 1.95V VCCO = 1.4V to 1.6V VCCO = 1.1V to 1.3V Min Max Min Max Min Max Min Max Min Max Symbol Parameter Conditions TA = +25°C Units Typical C IN Input Capacitance An Control Pin (OE)V CCI = VCCO = 3.3V, VI = 0V or VCCI 4.0 pF C OUT Output Capacitance Yn VCCI = VCCO = 3.3V, VI = 0V or VCCI 5.0 pF C PD Power Dissipation Capacitance V CCI = VCCO = 3.3V, VI = 0V or VCCI, F = 10 MHz 20.0 pF
7 www.fairchildsemi.com FXL5T244 Tape and Reel Specification Tape Format for DQFN TAPE DIMENSIONS inches (millimeters) REEL DIMENSIONS inches (millimeters) Package Tape Number Cavity Cover Tape Designator Section Cavities Status Status Leader (Start End) 125 (typ) Empty Sealed BQX Carrier 3000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed Tape Size ABCDN W 1 W 2
www.fairchildsemi.com 8 FXL5T244 Low Voltage Dual Supply 5-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD ’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the user. 2. A critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
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