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FXLH42245 Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies and Bushold Data Inputs and 3-STATE Outputs and 26 Series Resistors in the B Port Outputs
June 2004 Revised October 2004
FXLH42245 Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies and Bushold Data Inputs and 3-STATE Outputs and 26 Series Resistors in the B Port Outputs
General Description
The FXLH42245 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. 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 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 a 3-STATE condition. The FXLH42245 is designed so that the control pins (T/R and OE) are supplied by VCCA.
Features
s Bi-directional interface between any 2 levels from 1.1V to 3.6V s Fully configurable, inputs track VCC level 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 Bushold on data inputs eliminates the need for external pull-up/pull-down resistors s 26 output series resistors on the B Port to reduce line noise s Power-off protection s Control inputs (T/R, OE) levels are referenced to VCCA voltage s Packaged in 24-terminal MLP 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 FXLH42245MPX Package Number MLP024B Package Description 24-Terminal Molded Leadless Package (MLP), JEDEC MO-220, 3.5mm x 4.5mm
(c) 2004 Fairchild Semiconductor Corporation
DS500882
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FXLH42245
Pin Descriptions
Pin Names OE T/R A0 - A7 B0 - B7 VCCA VCCB GND Description Output Enable Input Transmit/Receive Input Side A Input or 3-STATE Output Side B Input or 3-STATE Output Side A Power Supply Side B Power Supply Ground
Connection Diagram
Terminal Assignments for DQFN
Truth Table
Inputs OE L L H
H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care
Outputs T/R L H X Bus B Data to Bus A Bus A Data to Bus B 3-STATE (Top Through View)
Pin Assignments
Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 Pin Name VCCA T/R A0 A1 A2 A3 A4 A5 A6 A7 GND GND Pin Number 13 14 15 16 17 18 19 20 21 22 23 24 Pin Name GND B7 B6 B5 B4 B3 B2 B1 B0 OE VCCB VCCB
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 the 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 the other VCC.
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FXLH42245
Absolute Maximum Ratings(Note 1)
Supply Voltage VCCA VCCB DC Input Voltage (VI) I/O Port A I/O Port B Control Inputs (T/R, OE) Output Voltage (VO) (Note 2) Outputs 3-STATE Outputs Active (An) Outputs Active (Bn) 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) Storage Temperature Range (TSTG)
Recommended Operating Conditions (Note 3)
Power Supply Operating (VCCA or VCCB) Input Voltage Port A 0.0V to VCCA 0.0V to VCCB 0.0V to VCCA Port B Control Inputs (T/R, OE) Output Current in IOH/IOL (A Port) VCCA 3.0V to 3.6V 2.3V to 2.7V 1.65V to 1.95V 1.4V to 1.65V 1.1V to 1.4V Output Current in IOH/IOL (B Port) VCCB 3.0V to 3.6V Resistor Outputs Resistor Outputs Resistor Outputs Resistor Outputs Resistor Outputs 1.1V to 3.6V
-0.5V to +4.6V -0.5V to +4.6V -0.5V to VCCA +0.5V -0.5V to VCCA +0.5V -0.5V to +4.6V -0.5V to +4.6V -0.5V to VCCA + 0.5V -0.5V to VCCB + 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
12 mA 8 mA 3 mA 1 mA 0.25 mA -40C to +85C
10 ns/V
2.3V to 2.7V 1.65V to 1.95V 1.4V to 1.65V 1.1V to 1.4V
Free Air Operating Temperature (TA) Minimum Input Edge Rate (V/t) VCCA/B = 1.1V to 3.6V
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 (Note 4) Parameter High Level Input Voltage Conditions Data Inputs An, Bn VCCI (V) 2.7 - 3.6 2.3 - 2.7 1.4 - 1.65 1.1 - 1.4 Control Pins/OE, T/R (Referenced to VCCA) 2.7 - 3.6 2.3 - 2.7 1.4 - 1.65 1.1 - 1.4 VCCO (V) Min 2.0 1.6 0.65 x VCCI 0.9 x VCCI 2.0 1.6 0.65 x VCCA 0.9 x VCCA V Typ Max Units
1.65 - 2.3 1.1 - 3.6 0.65 x VCCI
1.65 - 2.3 1.1 - 3.6 0.65 x VCCA
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FXLH42245
DC Electrical Characteristics
Symbol VIL (Note 4) Parameter Low Level Input Voltage
(Continued)
VCCI (V) 2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.1 - 3.6 1.4 - 1.65 1.1 - 1.4 VCCO (V) 0.8 0.7 0.35 x VCCI 0.35 x VCCI 0.1 x VCCI 0.8 0.7 0.35 x VCCA 0.35 x VCCA 0.1 x VCCA 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 1.1- 3.6 2.7 3.0 3.0 2.3 2.3 1.65 1.4 1.1 1.1- 3.6 2.7 3.0 3.0 2.3 2.3 1.65 1.4 1.1 3.6 VCC0 - 0.2 2.2 2.4 2.2 2.0 1.8 1.7 1.25 1.05 0.75 x VCC0 VCC0 - 0.2 2.2 2.4 2.2 2.0 1.8 1.7 1.25 1.05 0.75 x VCC0 0.2 0.4 0.55 0.8 0.4 0.6 0.3 0.35 0.3 x VCC0 0.2 0.4 0.4 0.55 0.4 0.6 0.3 0.35 0.3 x VCC0 1.0 A V V V V V
Conditions Data Inputs An, Bn
Min
Typ
Max
Units
Control Pins OE, T/R (Referenced to VCCA)
2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.1 - 3.6 1.4 - 1.65 1.1 - 1.4
VOH (Note 5)
High Level Output Voltage B Port
IOH = -100 A IOH = -6 mA IOH = -8 mA IOH = -12 mA IOH = -4 mA IOH = -6 mA IOH = -8 mA IOH = -3 mA IOH = -1 mA IOH = -0.25 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 1.1 - 3.6 2.7 3.0 3.0 2.3 2.3 1.65 1.4 1.1 1.1 - 3.6 2.7 3.0 3.0 2.3 2.3 1.65 1.4 1.1 1.1 - 3.6
VOH (Note 5)
High Level Output Voltage A Port
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
VOL (Note 5)
Low Level Output Voltage B Port
IOL = 100A IOL = 6 mA IOL = 8 mA IOL = 12 mA IOL = 6 mA IOL = 8 mA IOL = 3 mA IOL = 1 mA IOL = 0.25 mA
VOL (Note 5)
Low Level Output Voltage A Port
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
II
Input Leakage Current Control Pins VI = VCCA or GND
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FXLH42245
DC Electrical Characteristics
Symbol II(HOLD) Parameter Bushold Input Minimum Drive Current
(Continued)
VCCI (V) 3.0 3.0 2.3 2.3 1.65 1.65 1.4 1.4 1.1 1.1 3.6 3.6 2.7 2.7 1.95 1.95 1.6 1.6 1.4 1.4 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) 3.0 3.0 2.3 2.3 1.65 1.65 1.4 1.4 1.1 1.1 3.6 3.6 2.7 2.7 1.95 1.95 1.6 1.6 1.4 1.4 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 3.6 450 -450 300 -300 200 -200 120 -120 80.0 -80.0 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 75.0 -75.0 45.0 -45.0 25.0 -25.0 11.0 -11.0 4.0 -4.0 A
Conditions VIN = 0.8 VIN = 2.0 VIN = 0.7 VIN = 1.6 VIN = 0.57 VIN = 1.07 VIN = 0.49 VIN = 0.91 VIN = 0.11 VIN = 0.99
Min
Typ
Max
Units
II(OD) (Note 6) (Note 7)
Bushold Input Over-drive Current-to-Change State
(Note 6) (Note 7) (Note 6) (Note 7) (Note 6) (Note 7) (Note 6) (Note 7) (Note 6) (Note 7)
IOFF
Power Off Leakage Current
An, VI or VO = 0V to 3.6V Bn, VI or VO = 0V to 3.6V OE = VIH OE = Don't Care OE = Don't Care
IOZ (Note 8)
3-STATE Output Leakage VO, VCC or GND VI = VIH or VIL
An, Bn Bn, An,
ICCA/B (Note 9) ICCZ (Note 9) ICCA ICCB ICCA/B
Quiescent Supply Current Quiescent Supply Current Quiescent Supply Current Quiescent Supply Current Increase in ICC per Input; Other Inputs at VCC or GND
VI = VCCI or GND; IO = 0 VI = VCCI or GND; IO = 0 VI = VCCA or GND; IO = 0 VI = VCCA or GND; IO = 0 VI = VCCB or GND; IO = 0 VI = VCCB or GND; IO = 0 VIH = 3.0
A A A
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: An external driver must source at least the specified current to switch LOW-to-HIGH. Note 7: An external driver must sink at least the specified current to switch HIGH-to-LOW. Note 8: Don't Care = Any valid logic level. Note 9: Reflects current per supply, VCCA or VCCB.
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FXLH42245
AC Electrical Characteristics VCCA = 3.0V to 3.6V
TA = -40C to +85C Symbol Parameter VCCB = 3.0V to 3.6V Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay A to B Propagation Delay B to A Output Enable OE to B Output Enable OE to A Output Disable OE to B Output Disable OE to A 0.5 0.2 0.7 0.5 0.4 0.2 Max 3.9 3.5 4.8 4.0 4.3 3.7 VCCB = 2.3V to 2.7V Min 0.5 0.2 1.0 0.5 0.4 0.2 Max 4.5 3.8 5.1 4.0 4.4 3.7 VCCB = 1.65V to 1.95V Min 0.9 0.3 1.5 0.5 0.9 0.2 Max 5.9 4.0 6.7 4.0 5.2 3.7 VCCB = 1.4V to 1.6V Min 1.0 0.5 1.5 0.5 1.7 0.2 Max 7.4 4.3 7.1 4.0 6.8 3.7 VCCB = 1.1V to 1.3V Min 1.6 0.8 2.0 0.5 2.0 0.2 Max 22.0 13.0 18.0 4.0 19.0 3.7 ns ns ns Units
AC Electrical Characteristics VCCA = 2.3V to 2.7V
TA = -40C to +85C Symbol Parameter VCCB = 3.0V to 3.6V Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay A to B Propagation Delay B to A Output Enable OE to B Output Enable OE to A Output Disable OE to B Output Disable OE to A 0.5 0.3 0.8 0.6 0.4 0.2 Max 4.3 3.9 5.1 4.5 4.6 4.0 VCCB = 2.3V to 2.7V Min 0.6 0.4 1.0 0.6 0.4 0.2 Max 4.8 4.2 5.5 4.5 4.8 4.0 VCCB = 1.65V to 1.95V Min 0.9 0.5 1.5 0.6 0.9 0.2 Max 6.0 4.5 6.9 4.5 5.3 4.0 VCCB = 1.4V to 1.6V Min 1.0 0.5 1.5 0.6 1.7 0.2 Max 7.6 4.8 7.4 4.5 7.1 4.0 VCCB = 1.1V to 1.3V Min 1.6 1.0 2.0 0.6 2.0 0.2 Max 22.0 7.0 19.0 4.5 19.0 4.0 ns ns ns Units
AC Electrical Characteristics VCCA = 1.65V to 1.95V
TA = -40C to +85C Symbol Parameter VCCB = 3.0V to 3.6V Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay A to B Propagation Delay B to A Output Enable OE to B Output Enable OE to A Output Disable OE to B Output Disable OE to A 0.5 0.5 0.8 1.0 0.4 0.5 Max 4.6 5.4 5.4 6.7 4.7 5.0 VCCB = 2.3V to 2.7V Min 0.7 0.5 1.0 1.0 0.4 0.5 Max 5.1 5.6 5.9 6.7 4.9 5.0 VCCB = 1.65V to 1.95V Min 1.1 0.8 1.5 1.0 1.0 0.5 Max 6.2 5.7 7.3 6.7 5.4 5.0 VCCB = 1.4V to 1.6V Min 1.1 1.0 1.5 1.0 1.7 0.5 Max 7.8 6.0 7.7 6.7 7.2 5.0 VCCB = 1.1V to 1.3V Min 1.7 1.2 2.0 1.0 2.0 0.5 Max 22.0 8.0 20.0 6.7 19.0 5.0 ns ns ns Units
AC Electrical Characteristics VCCA = 1.4V to 1.6V
TA = -40C to +85C Symbol Parameter VCCB = 3.0V to 3.6V Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay A to B Propagation Delay B to A Output Enable OE to B Output Enable OE to A Output Disable OE to B Output Disable OE to A 0.7 0.6 1.1 1.0 0.6 1.0 Max 4.8 6.8 5.8 7.5 4.8 6.0 VCCB = 2.3V to 2.7V Min 0.8 0.8 1.3 1.0 0.6 1.0 Max 5.3 6.9 6.3 7.5 5.1 6.0 VCCB = 1.65V to 1.95V Min 1.2 0.9 1.5 1.0 1.1 1.0 Max 6.4 7.1 7.8 7.5 5.8 6.0 VCCB = 1.4V to 1.6V Min 1.3 1.0 2.0 1.0 2.0 1.0 Max 7.9 7.3 8.1 7.5 7.7 6.0 VCCB = 1.1V to 1.3V Min 2.0 1.3 2.0 1.0 2.0 1.0 Max 22.0 9.5 20.0 7.5 20.0 6.0 ns ns ns Units
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FXLH42245
AC Electrical Characteristics VCCA = 1.1V to 1.3V
TA = -40C to +85C Symbol Parameter VCCB = 3.0V to 3.6V Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay A to B Propagation Delay B to A Output Enable OE to B Output Enable OE to A Output Disable OE to B Output Disable OE to A 1.0 1.4 1.5 2.0 1.2 2.0 Max 13.8 22.0 12.6 22.0 15.0 15.0 VCCB = 2.3V to 2.7V Min 1.0 1.4 1.5 2.0 0.9 2.0 Max 7.8 22.0 9.6 22.0 7.6 12.0 VCCB = 1.65V to 1.95V Min 1.0 1.5 1.5 2.0 1.2 2.0 Max 8.4 22.0 10.6 22.0 8.6 12.0 VCCB = 1.4V to 1.6V Min 1.0 1.5 2.0 2.0 2.0 2.0 Max 10.4 22.0 11.6 22.0 10.6 12.0 VCCB = 1.1V to 1.3V Min 2.0 2.0 2.0 2.0 3.0 2.0 Max 24.0 24.0 24.0 22.0 21.0 12.0 ns ns ns Units
Capacitance
Symbol CIN CI/O CPD Parameter Input Capacitance Control Pins (OE, T/R) Input/Output Capacitance An, Bn Port Power Dissipation Capacitance Conditions VCCA = VCCB = 3.3V, VI = 0V or VCCA/B VCCA = VCCB = 3.3V, VI = 0V or VCCA/B VCCA = VCCB = 3.3V, VI = 0V or VCC, F = 10 MHz TA = +25C Typical 4.0 5.0 20.0 pF pF pF Units
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FXLH42245
AC Loading and Waveforms
Test tPLH, tPHL tPLZ, tPZL tPHZ, tPZH 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 30 pF 30 pF 30 pF
Switch Open VCCO x 2 at VCCO = 3.3V 0.3V, 2.5V 0.2V, 1.8V 0.15V, 1.5V 0.1V, 1.2V 0.1V GND FIGURE 1. AC Test Circuit
RL 2k 2k 500 500 500
RTR1 2k 2k 500 500 500
Note: Input tR = tF = 2.0 ns, 10% to 90%
Note: Input t R = tF = 2.0 ns, 10% to 90%
FIGURE 2. Waveform for Inverting and Non-Inverting Functions
FIGURE 3. 3-STATE Output High Enable and Disable Times for Low Voltage Logic
Note: Input tR = tF = 2.0 ns, 10% to 90%
FIGURE 4. 3-STATE Output Low 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 Symbol Vmi Vmo VX VY VCC 1.8V 0.15V 1.5V 0.1V VCCI/2 VCCO/2 VOH - 0.15V VOL + 0.15V VCCI/2 VCCO/2 VOH - 0.1V VOL + 0.1V 1.2V 0.1V VCCI/2 VCCO/2 VOH - 0.1V VOL + 0.1V
Note: For Vmi; VCCI = VCCA for control pins T/R and OE, or (VCCA/2).
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FXLH42245
Tape and Reel Specification
Tape Format for MLP Package Designator MPX 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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FXLH42245 Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies and Bushold Data Inputs and 3-STATE Outputs and 26 Series Resistors in the B Port Outputs
Physical Dimensions inches (millimeters) unless otherwise noted
24-Terminal Molded Leadless Package (MLP), JEDEC MO-220, 3.5mm x 4.5mm Package Number MLP024B
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 10 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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