Revised June 2004 FXL4T245 Low Voltage Dual Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs General Description Features The FXL4T245 is a configurable dual-voltage-supply translator designed for bi-directional 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. The A Port tracks the VCCA level, and the B Port tracks the VCCB level. Both ports are designed to accept supply voltage levels from 1.1V to 3.6V. This allows for bidirectional voltage translation over a variety of voltage levels: 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. ■ Bi-directional interface between any 2 levels from 1.1V to 3.6V ■ Fully configurable, inputs track VCC level ■ Non-preferential power-up sequencing; either VCC may be powered-up first ■ No power-up sequencing required ■ Outputs remain in 3-STATE until active VCC level is reached 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. ■ Outputs switch to 3-STATE if either VCC is at GND The Transmit/Receive (T/R) input determines the direction of data flow through the device. The OE input, when HIGH, disables both the A and B Ports by placing them in 3-STATE condition. The FXL4T245 is designed so that the control pins (T/R and OE) are supplied by VCCA. ■ Packaged in 14-terminal DQFN (2.5mm x 3.0mm) package ■ Power-off protection ■ Control inputs (T/R, OE) levels are referenced to VCCA voltage ■ 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 FXL4T245BQX Package Number MLP014A Package Description 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm © 2004 Fairchild Semiconductor Corporation DS500891 www.fairchildsemi.com FXL4T245 Low Voltage Dual Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs April 2004 FXL4T245 Terminal Descriptions Terminal Names Truth Table Inputs Description OE OE Output Enable Input T/R Transmit/Receive Input An Side A Inputs or 3-STATE Outputs Bn Side B Inputs or 3-STATE Outputs VCCA Side A Power Supply VCCB Side B Power Supply GND Ground Outputs T/R L L Bus B Data to Bus A L H Bus A Data to Bus B H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care Connection Diagram Terminal Assignment Terminal Assignments for DQFN Terminal Number Terminal Name 1 VCCA 2 A0 3 A1 4 A2 5 A3 6 T/R 7 GND 8 GND 9 OE 10 B3 11 B2 12 B1 13 B0 14 VCCB (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 inputs (T/R and OE) are 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 OE driver. The recommended power-up sequence is the following: 1. Apply power to either VCC. 2. Apply power to the T/R 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. www.fairchildsemi.com 2 Recommended Operating Conditions (Note 3) Supply Voltage VCCA −0.5V to +4.6V Power Supply Operating (VCCA or VCCB) VCCB −0.5V to +4.6V Input Voltage DC Input Voltage (VI) 1.1V to 3.6V Port A 0.0V to 3.6V I/O Port A −0.5V to +4.6V Port B I/O Port B −0.5V to +4.6V Control Inputs (T/R, OE) Control Inputs (T/R, OE) −0.5V to +4.6V 0.0V to 3.6V 0.0V to VCCA Output Current in IOH/IOL Output Voltage (VO) (Note 2) VCC −0.5V to +4.6V 3.0V to 3.6V ±24 mA Outputs Active (An) −0.5V to VCCA + 0.5V 2.3V to 2.7V ±18 mA Outputs Active (Bn) −0.5V to VCCB + 0.5V 1.65V to 1.95V Outputs 3-STATE DC Input Diode Current (IIK) VI < 0V −50 mA ±6 mA ±2 mA 1.4V to 1.65V DC Output Diode Current (IOK) ±0.5 mA 1.1V to 1.4V VO < 0V −50 mA Free Air Operating Temperature (TA) VO > VCC +50 mA Minimum Input Edge Rate (∆V/∆t) −40°C to +85°C VCCA/B = 1.1V to 3.6V DC Output Source/Sink Current 10 ns/V −50 mA / +50 mA (IOH/IOL) DC VCC or Ground Current per 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. ±100 mA Supply Pin (ICC) Storage Temperature Range (TSTG) −65°C to +150°C 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 Data Inputs An, Bn (Note 4) VCCI VCCO (V) (V) 2.7 - 3.6 Control Pins/OE, T/R (Referenced to VCCA) VIL Low Level Input Voltage Data Inputs An, Bn (Note 4) Control Pins/OE, T/R (Referenced to VCCA) 0.65 x VCCI 0.9 x VCCI 2.7 - 3.6 2.0 2.3 - 2.7 V 1.6 1.1 - 3.6 0.65 x VCCA 1.4 - 1.65 0.65 x VCCA 1.1 - 1.4 0.9 x VCCA 2.7 - 3.6 0.8 2.3 - 2.7 0.7 1.1 - 3.6 0.35 x VCCI 1.4 - 1.65 0.35 x VCCI 1.1 - 1.4 0.1 x VCCI 2.7 - 3.6 0.8 2.3 - 2.7 1.65 - 2.3 3 0.65 x VCCI 1.1 - 1.4 1.65 - 2.3 Units 1.6 1.1 - 3.6 1.4 - 1.65 1.65 - 2.3 Max 2.0 2.3 - 2.7 1.65 - 2.3 Min V 0.7 1.1 - 3.6 0.35 x VCCA 1.4 - 1.65 0.35 x VCCA 1.1 - 1.4 0.1 x VCCA www.fairchildsemi.com FXL4T245 Absolute Maximum Ratings(Note 1) FXL4T245 DC Electrical Characteristics Symbol VOH (Continued) VCCA VCCB (V) (V) IOH = −100 µA 1.1 - 3.6 1.1 - 3.6 VCC0 - 0.2 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 0.75 x VCC0 Parameter High Level Output Voltage (Note 5) Conditions IOH = −0.5 mA VOL Low Level Output Voltage (Note 5) Min Max V 1.1 1.1 IOL = 100µA 1.1 - 3.6 1.1- 3.6 0.2 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 0.3 x VCC0 IOL = 0.5 mA 1.1 1.1 1.1 - 3.6 3.6 ±1.0 An, VI or VO = 0V to 3.6V 0 3.6 ±10.0 Bn, VI or VO = 0V to 3.6V 3.6 0 ±10.0 II Input Leakage Current. Control Pins VI = V CCA or GND IOFF Power Off Leakage Current Units IOZ 3-STATE Output Leakage An, Bn OE = VIH 3.6 3.6 ±10.0 (Note 6) 0 ≤ V O ≤ 3.6V Bn, OE = Don’t Care 0 3.6 +10.0 VI = VIH or VIL An, OE = Don’t Care 3.6 0 +10.0 V µA µA µA ICCA/B (Note 7) Quiescent Supply Current VI = V CCI or GND; IO = 0 1.1 - 3.6 1.1 - 3.6 20.0 µA ICCZ (Note 7) Quiescent Supply Current VI = V CCI or GND; IO = 0 1.1 - 3.6 1.1 - 3.6 20.0 µA ICCA Quiescent Supply Current VI = V CCA or GND; IO = 0 0 1.1 - 3.6 −10.0 µA VI = V CCA or GND; IO = 0 1.1 - 3.6 0 10.0 µA VI = V CCB or GND; IO = 0 1.1 - 3.6 0 −10.0 µA VI = V CCB or GND; IO = 0 0 1.1 - 3.6 10.0 µA 3.6 3.6 500 µA ICCB ∆ICCA/B Quiescent Supply Current Increase in ICC per Input; VIH = 3.0 Other Inputs at VCC or GND Note 4: VCCI = the VCC associated with the data input under test. Note 5: VCCO = the VCC associated with the output under test. Note 6: Don’t Care = Any valid logic level. Note 7: Reflects current per supply, VCCA or VCCB. www.fairchildsemi.com 4 TA = −40°C to +85°C Symbol Parameter VCCB = 3.0V to 3.6V VCCB = 2.3V to 2.7V VCCB = 1.65V to 1.95V VCCB = 1.4V to 1.6V VCCB = 1.1V to 1.3V Min Max Min Max Min Max Min Max Min Max tPLH, tPHL Propagation Delay A to B 0.2 3.5 0.3 3.9 0.5 5.4 0.6 6.8 1.4 22.0 Propagation Delay B to A 0.2 3.5 0.2 3.8 0.3 4.0 0.5 4.3 0.8 13.0 tPZH, tPZL Output Enable OE to B 0.5 4.0 0.7 4.4 1.0 5.9 1.0 6.4 1.5 17.0 Output Enable OE to A 0.5 4.0 0.5 4.0 0.5 4.0 0.5 4.0 0.5 4.0 Units ns ns tPHZ, tPLZ Output Disable OE to B 0.2 3.8 0.2 4.0 0.7 4.8 1.5 6.2 2.0 17.0 Output Disable OE to A 0.2 3.7 0.2 3.7 0.2 3.7 0.2 3.7 0.2 3.7 ns AC Electrical Characteristics VCCA = 2.3V to 2.7V TA = −40°C to +85°C Symbol Parameter VCCB = 3.0V to 3.6V VCCB = 2.3V to 2.7V VCCB = 1.65V to 1.95V VCCB = 1.4V to 1.6V VCCB = 1.1V to 1.3V Min Max Min Max Min Max Min Max Min Max tPLH, tPHL Propagation Delay A to B 0.2 3.8 0.4 4.2 0.5 5.6 0.8 6.9 1.4 22.0 Propagation Delay B to A 0.3 3.9 0.4 4.2 0.5 4.5 0.5 4.8 1.0 7.0 tPZH, tPZL Output Enable OE to B 0.6 4.2 0.8 4.6 1.0 6.0 1.0 6.8 1.5 17.0 Output Enable OE to A 0.6 4.5 0.6 4.5 0.6 4.5 0.6 4.5 0.6 4.5 Units ns ns tPHZ, tPLZ Output Disable OE to B 0.2 4.1 0.2 4.3 0.7 4.8 1.5 6.7 2.0 17.0 Output Disable OE to A 0.2 4.0 0.2 4.0 0.2 4.0 0.2 4.0 0.2 4.0 ns AC Electrical Characteristics VCCA = 1.65V to 1.95V TA = −40°C to +85°C Symbol Parameter VCCB = 3.0V to 3.6V VCCB = 2.3V to 2.7V VCCB = 1.65V to 1.95V VCCB = 1.4V to 1.6V VCCB = 1.1V to 1.3V Min Max Min Max Min Max Min Max Min Max tPLH, tPHL Propagation Delay A to B 0.3 4.0 0.5 4.5 0.8 5.7 0.9 7.1 1.5 22.0 Propagation Delay B to A 0.5 5.4 0.5 5.6 0.8 5.7 1.0 6.0 1.2 8.0 tPZH, tPZL Output Enable OE to B 0.6 5.2 0.8 5.4 1.2 6.9 1.2 7.2 1.5 18.0 Output Enable OE to A 1.0 6.7 1.0 6.7 1.0 6.7 1.0 6.7 1.0 6.7 Units ns ns tPHZ, tPLZ Output Disable OE to B 0.2 5.1 0.2 5.2 0.8 5.2 1.5 7.0 2.0 17.0 Output Disable OE to A 0.5 5.0 0.5 5.0 0.5 5.0 0.5 5.0 0.5 5.0 ns AC Electrical Characteristics VCCA = 1.4V to 1.6V TA = −40°C to +85°C Symbol Parameter VCCB = 3.0V to 3.6V VCCB = 2.3V to 2.7V VCCB = 1.65V to 1.95V VCCB = 1.4V to 1.6V VCCB = 1.1V to 1.3V Min Max Min Max Min Max Min Max Min Max tPLH, tPHL Propagation Delay A to B 0.5 4.3 0.5 4.8 1.0 6.0 1.0 7.3 1.5 22.0 Propagation Delay B to A 0.6 6.8 0.8 6.9 0.9 7.1 1.0 7.3 1.3 9.5 tPZH, tPZL Output Enable OE to B 1.1 7.5 1.1 7.6 1.3 7.7 1.4 7.9 2.0 20.0 Output Enable OE to A 1.0 7.5 1.0 7.5 1.0 7.5 1.0 7.5 1.0 7.5 Units ns ns tPHZ, tPLZ Output Disable OE to B 0.4 6.1 0.4 6.2 0.9 6.2 1.5 7.5 2.0 18.0 Output Disable OE to A 1.0 6.0 1.0 6.0 1.0 6.0 1.0 6.0 1.0 6.0 ns 5 www.fairchildsemi.com FXL4T245 AC Electrical Characteristics VCCA = 3.0V to 3.6V FXL4T245 AC Electrical Characteristics VCCA = 1.1V to 1.3V TA = −40°C to +85°C VCCB = 3.0V to 3.6V VCCB = 2.3V to 2.7V VCCB = 1.65V to 1.95V Min Max Min Max Min tPLH, tPHL Propagation Delay A to B 0.8 13.0 1.0 7.0 1.2 8.0 1.3 9.5 2.0 24.0 Propagation Delay B to A 1.4 22.0 1.4 22.0 1.5 22.0 1.5 22.0 2.0 24.0 tPZH, tPZL Output Enable OE to B 1.0 12.0 1.0 9.0 2.0 10.0 2.0 11.0 2.0 24.0 Output Enable OE to A 2.0 22.0 2.0 22.0 2.0 22.0 2.0 22.0 2.0 22.0 tPHZ, tPLZ Output Disable OE to B 1.0 15.0 0.7 7.0 1.0 8.0 2.0 10.0 2.0 20.0 Output Disable OE to A 2.0 15.0 2.0 12.0 2.0 12.0 2.0 12.0 2.0 12.0 Symbol Parameter Max VCCB = 1.4V to 1.6V Min VCCB = 1.1V to 1.3V Max Min Units Max ns ns Capacitance Symbol Parameter Conditions TA = +25°C Typical Units CIN Input Capacitance Control Pins (OE, T/R) VCCA = VCCB = 3.3V, VI = 0V or VCCA/B 4.0 CI/O Input/Output Capacitance An, Bn Ports VCCA = VCCB = 3.3V, VI = 0V or VCCA/B 5.0 pF CPD Power Dissipation Capacitance VCCA = VCCB = 3.3V, VI = 0V or VCC, F = 10 MHz 20.0 pF www.fairchildsemi.com ns 6 pF FXL4T245 AC Loading and Waveforms TEST SWITCH tPLH, tPHL OPEN tPLZ, tPZL 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 tPHZ, tPZH GND FIGURE 1. AC Test Circuit AC Load Table VCCO CL RL Rtr1 1.2V ± 0.1V 15 pF 2 kΩ 2 kΩ 1.5V ± 0.1V 15 pF 2 kΩ 2 kΩ 1.8V ± 0.15V 15 pF 2 kΩ 2 kΩ 2.5V ± 0.2V 15 pF 2 kΩ 2 kΩ 3.3V ± 0.3V 15 pF 2 kΩ 2 kΩ Note: Input tR = tF = 2.0 ns, 10% to 90% 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 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 VCC 3.3V ± 0.3V 2.5V ± 0.2V 1.8V ± 0.15V 1.5V ± 0.1V Vmi VCCI/2 VCCI/2 VCCI/2 VCCI/2 1.2V ± 0.1V VCCI/2 Vmo VCCO/2 VCCO/2 VCCO/2 VCCO/2 VCCO/2 VX VOH − 0.3V VOH − 0.15V VOH − 0.15V VOH − 0.1V VOH − 0.1V VY VOL + 0.3V VOL + 0.15V VOL + 0.15V VOL + 01V VOL + 01V Note: For Vmi: VCCI = VCCA for Control Pins T/R and OE, or VCCA/2 7 www.fairchildsemi.com FXL4T245 Tape and Reel Specification Tape Format for DQFN Package Designator BQX Tape Number Cavity Section Cavities Status Cover Tape Status Leader (Start End) 125 (typ) Empty Sealed Carrier 3000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed TAPE DIMENSIONS inches (millimeters) REEL DIMENSIONS inches (millimeters) Tape Size 12 mm A B C D N W1 W2 13.0 0.059 0.512 0.795 2.165 0.488 0.724 (330.0) (1.50) (13.00) (20.20) (55.00) (12.4) (18.4) www.fairchildsemi.com 8 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: 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. 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 9 www.fairchildsemi.com FXL4T245 Low Voltage Dual Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted