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FXL5T244 Low Voltage Dual Supply 5-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs
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
General Description
The FXL5T244 is a configurable dual-voltage-supply translator designed for one-way (unidirectional) voltage translation 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 translation 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 VCCs 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
s One-way (unidirectional) translation between any 2 levels from 1.1V to 3.6V s Fully configurable, inputs and outputs track respective VCC levels s Non-preferential power-up sequencing; either VCC may be powered-up first s Outputs remain in 3-STATE until active VCC level is reached s Outputs switch to 3-STATE if either VCC is at GND s Power-off protection s Control input (OE) level is referenced to VCCI voltage s Packaged in 14-terminal DQFN (2.5mm x 3.0mm) package s 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 FXL5T244BQX Package Number MLP014A Package Description 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm
(c) 2004 Fairchild Semiconductor Corporation
DS500892
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FXL5T244
Terminal Descriptions
Terminal Names OE An Yn VCCI VCCO GND Description
Truth Table
Inputs OE An L H X Outputs Yn L H 3-STATE
Output Enable Input Data Inputs 3-STATE Outputs Inputs Power Supply Outputs Power Supply Ground
L L H
H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care
Connection Diagram
Terminal Assignments for DQFN
Terminal Assignment
Terminal Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Terminal Name VCCI A0 A1 A2 A3 A4 GND OE Y4 Y3 Y2 Y1 Y0 VCCO
(Top View)
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.
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FXL5T244
Absolute Maximum Ratings(Note 1)
Supply Voltage VCCI VCCO DC Input Voltage (VI) Output Voltage (VO) (Note 2) Outputs 3-STATE Outputs Active DC Input Diode Current (IIK) VI < 0V DC Output Diode Current (IOK) VO < 0V VO > VCC DC Output Source/Sink Current (IOH/IOL) DC VCC or Ground Current per Supply Pin (ICC or GND) Storage Temperature Range (TSTG)
Recommended Operating Conditions (Note 3)
Power Supply Operating (VCCI or VCCO) Input Voltage An Control Inputs (OE) Output Current in IOH/IOL VCCO = 3.0V to 3.6V VCCO = 2.3V to 2.7V VCCO = 1.65V to 1.95V VCCO = 1.4V to 1.65V VCCO = 1.1V to 1.4V Free Air Operating Temperature (TA) Minimum Input Edge Rate (V/t) VCCA/B = 1.1V to 3.6V 10 ns/V 0.0V to 3.6V 0.0V to 3.6V 1.1V to 3.6V
-0.5V to +4.6V -0.5V to +4.6V -0.5V to +4.6V -0.5V to +4.6V -0.5V to VCCO + 0.5V -50 mA -50 mA +50 mA -50 mA / +50 mA 100 mA -65C to +150C
24 mA 18 mA 6 mA 2 mA 0.5 mA -40C to +85C
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.
DC Electrical Characteristics
Symbol VIH Parameter High Level Input Voltage Conditions VCCI (V) 2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.4 - 1.65 1.1 - 1.4 VIL Low Level Input Voltage 2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.4 - 1.65 1.1 - 1.4 VOH High Level Output Voltage IOH = -100 A IOH = -12 mA IOH = -18 mA IOH = -24 mA IOH = -6 mA IOH = -12 mA IOH = -18 mA IOH = -6 mA IOH = -2 mA IOH = -0.5 mA 1.1 - 3.6 2.7 3.0 3.0 2.3 2.3 2.3 1.65 1.4 1.1 1.1 - 3.6 2.7 3.0 3.0 2.3 2.3 2.3 1.65 1.4 1.1 VCC0 - 0.2 2.2 2.4 2.2 2.0 1.8 1.7 1.25 1.05 0.75 x VCC0 V 1.1 - 3.6 1.1 - 3.6 VCCO (V) Min 2.0 1.6 0.65 x VCCI 0.65 x VCCI 0.9 x VCCI 0.8 0.7 0.35 x VCCI 0.35 x VCCI 0.1 x VCCI V V Max Units
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FXL5T244
DC Electrical Characteristics
Symbol VOL Parameter Low Level Output Voltage
(Continued)
VCCI (V) 1.1 - 3.6 2.7 3.0 3.0 2.3 2.3 1.65 1.4 1.1 1.1 - 3.6 0 3.6 3.6 0 3.6 1.1 - 3.6 1.1 - 3.6 0 1.1 - 3.6 1.1 - 3.6 0 3.6 VCCO (V) 1.1- 3.6 2.7 3.0 3.0 2.3 2.3 1.65 1.4 1.1 3.6 3.6 0 3.6 3.6 0 1.1 - 3.6 1.1 - 3.6 1.1 - 3.6 0 0 1.1 - 3.6 3.6 0.2 0.4 0.4 0.55 0.4 0.6 0.3 0.35 0.3 x VCCI 1.0 10.0 10.0 10.0 +10.0 +10.0 20.0 20.0 -10.0 10.0 -10.0 10.0 500 A A A A A A A A A A V
Conditions IOL = 100A IOL = 12 mA IOL = 18 mA IOL = 24 mA IOL = 12 mA IOL = 18 mA IOL = 6 mA IOL = 2 mA IOL = 0.5 mA
Min
Max
Units
II IOFF
Input Leakage Current Power Off Leakage Current
VI = V CCI or GND An, OE = 0V to 3.6V Yn = 0V to 3.6V OE = VIH OE = Don't Care OE = Don't Care VI = V CCI or GND; IO = 0 VI = V CCI or GND; IO = 0 VI = V CCI or GND; IO = 0 VI = V CCI or GND; IO = 0 VI = V CCO or GND; IO = 0 VI = V CCO or GND; IO = 0 VIH = 3.0
IOZ (Note 4)
3-STATE Output Leakage 0 V O 3.6V VI = VIH or VIL
ICCI/O (Note 4) Quiescent Supply Current ICCZ (Note 5) ICCI ICCO ICCI/O Quiescent Supply Current Quiescent Supply Current Quiescent Supply Current Increase in ICC per Input; Other Inputs at VCC or GND
Note 4: Don't Care = Any valid logic level. Note 5: Reflects current per supply, VCCI or VCCO.
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FXL5T244
AC Electrical Characteristics VCCI = 3.0V to 3.6V
TA = -40C to +85C Symbol Parameter VCCO = 3.0V to 3.6V Min tPLH, tPHL Propagation Delay A to Y tPZH, tPZL Output Enable OE to Y tPHZ, tPLZ Output Disable OE to Y 0.2 0.5 0.2 Max 3.5 4.0 3.8 VCCO = 2.3V to 2.7V Min 0.3 0.7 0.2 Max 3.9 4.4 4.0 VCCO = 1.65V to 1.95V Min 0.7 1.0 0.7 Max 5.4 5.9 4.8 VCCO = 1.4V to 1.6V Min 0.8 1.0 1.5 Max 6.8 6.4 6.2 VCCO = 1.1V to 1.3V Min 1.4 1.5 2.0 Max 22.0 17.0 17.0 ns ns ns Units
AC Electrical Characteristics VCCI = 2.3V to 2.7V
TA = -40C to +85C Symbol Parameter VCCO = 3.0V to 3.6V Min tPLH, tPHL Propagation Delay A toY tPZH, tPZL Output Enable OE to Y tPHZ, tPLZ Output Disable OE to Y 0.2 0.6 0.2 Max 3.8 4.2 4.1 VCCO = 2.3V to 2.7V Min 0.4 0.8 0.2 Max 4.2 4.6 4.3 VCCO = 1.65V to 1.95V Min 0.5 1.0 0.7 Max 5.6 6.0 4.8 VCCO = 1.4V to 1.6V Min 0.8 1.0 1.5 Max 6.9 6.8 6.7 VCCO = 1.1V to 1.3V Min 1.4 1.5 2.0 Max 22.0 17.0 17.0 ns ns ns Units
AC Electrical Characteristics VCCI = 1.65V to 1.95V
TA = -40C to +85C Symbol Parameter VCCO = 3.0V to 3.6V Min tPLH, tPHL Propagation Delay A to Y tPZH, tPZL Output Enable OE to Y tPHZ, tPLZ Output Disable OE to Y 0.3 0.6 0.2 Max 4.0 5.2 5.1 VCCO = 2.3V to 2.7V Min 0.5 0.8 0.2 Max 4.5 5.4 4.0 VCCO = 1.65V to 1.95V Min 0.8 1.2 0.8 Max 5.7 6.9 5.2 VCCO = 1.4V to 1.6V Min 0.9 1.2 1.5 Max 7.1 7.2 7.0 VCCO = 1.1V to 1.3V Min 1.5 1.5 2.0 Max 22.0 18.0 17.0 ns ns ns Units
AC Electrical Characteristics VCCI = 1.4V to 1.6V
TA = -40C to +85C Symbol Parameter VCCO = 3.0V to 3.6V Min tPLH, tPHL Propagation Delay A to Y tPZH, tPZL Output Enable OE to Y tPHZ, tPLZ Output Disable OE to Y 0.5 1.1 0.4 Max 4.3 7.5 6.1 VCCO = 2.3V to 2.7V Min 0.5 1.1 0.4 Max 4.8 7.6 6.2 VCCO = 1.65V to 1.95V Min 1.0 1.3 0.9 Max 6.0 7.7 6.2 VCCO = 1.4V to 1.6V Min 1.0 1.4 1.5 Max 7.3 7.9 7.5 VCCO = 1.1V to 1.3V Min 1.5 2.0 2.0 Max 22.0 20.0 18.0 ns ns ns Units
AC Electrical Characteristics VCCI = 1.1V to 1.3V
TA = -40C to +85C Symbol Parameter VCCO = 3.0V to 3.6V Min tPLH, tPHL Propagation Delay A to Y tPZH, tPZL Output Enable OE to Y tPHZ, tPLZ Output Disable OE to Y 0.8 1.0 1.0 Max 13.0 12.0 15.0 VCCO = 2.3V to 2.7V Min 1.0 1.0 0.7 Max 7.0 9.0 7.0 VCCO = 1.65V to 1.95V Min 1.2 2.0 1.0 Max 8.0 10.0 8.0 VCCO = 1.4V to 1.6V Min 1.3 2.0 2.0 Max 9.5 11.0 10.0 VCCO = 1.1V to 1.3V Min 2.0 2.0 2.0 Max 24.0 24.0 20.0 ns ns ns Units
Capacitance
Symbol CIN COUT CPD Parameter Input Capacitance An Control Pin (OE) Output Capacitance Yn Power Dissipation Capacitance Conditions VCCI = VCCO = 3.3V, VI = 0V or VCCI VCCI = VCCO = 3.3V, VI = 0V or VCCI VCCI = VCCO = 3.3V, VI = 0V or VCCI, F = 10 MHz TA = +25C Typical 4.0 5.0 20.0 Units pF pF pF
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FXL5T244
AC Loading and Waveforms
TEST tPLH, tPHL tPLZ, tPZL tPHZ, tPZH
SWITCH OPEN VCCO x 2 at VCCO = 3.3 0.3V, 2.5V 0.2V, 1.8V 0.15V, 1.5V 0.1V, 1.2V 0.1V GND FIGURE 1. AC Test Circuit AC Load Table
VCCO 1.2V 0.1V 1.5V 0.1V 1.8V 0.15V 2.5V 0.2V 3.3V 0.3V
CL 15 pF 15 pF 15 pF 15 pF 15 pF
RL 2 k 2 k 2 k 2 k 2 k
Rtr1 2 k 2 k 2 k 2 k 2 k
Note: Input tR = tF = 2.0 ns, 10% to 90% Input tR = tF = 2.5ns, 10% to 90%, @ VI = 3.0V to 3.6V only
Note: Input t R = tF = 2.0 ns, 10% to 90% Input tR = tF = 2.5ns, 10% to 90%, @ VI = 3.0V to 3.6V only
FIGURE 2. Waveform for Inverting and Non-Inverting Functions
FIGURE 3. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic
Note: Input tR = tF = 2.0 ns, 10% to 90% Input tR = tF = 2.5ns, 10% to 90%, @ VI = 3.0V to 3.6V only
FIGURE 4. 3-STATE Output High Enable and Disable Times for Low Voltage Logic Symbol Vmi Vmo VX VY VCC 3.3V 0.3V VCCI/2 VCCO/2 VOH - 0.3V VOL + 0.3V 2.5V 0.2V VCCI/2 VCCO/2 VOH - 0.15V VOL + 0.15V 1.8V 0.15V VCCI/2 VCCO/2 VOH - 0.15V VOL + 0.15V 1.5V 0.1V VCCI/2 VCCO/2 VOH - 0.1V VOL + 01V 1.2V 0.1V VCCI/2 VCCO/2 VOH - 0.1V VOL + 01V
Note: For Vmi: VCCI = VCCA for Control Pins T/R and OE, or VCCA/2
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FXL5T244
Tape and Reel Specification
Tape Format for DQFN Package Designator BQX Tape Section Leader (Start End) Carrier Trailer (Hub End) TAPE DIMENSIONS inches (millimeters) Number Cavities 125 (typ) 3000 75 (typ) Cavity Status Empty Filled Empty Cover Tape Status Sealed Sealed Sealed
REEL DIMENSIONS inches (millimeters)
Tape Size 12 mm
A 13.0 (330.0)
B 0.059 (1.50)
C 0.512 (13.00)
D 0.795 (20.20)
N 2.165 (55.00)
W1 0.488 (12.4)
W2 0.724 (18.4)
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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 Package Number MLP014A
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 reasonably expected to result in a significant injury to the user. www.fairchildsemi.com 8 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably 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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