IDT54FCT166244TPAB [IDT]
FAST CMOS 16-BIT BUFFER/LINE DRIVER; FAST CMOS 16位缓冲器/线路驱动器
| 型号： | IDT54FCT166244TPAB |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | FAST CMOS 16-BIT BUFFER/LINE DRIVER |
| 文件： | 总9页 (文件大小：155K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FAST CMOS 16-BIT
BUFFER/LINE DRIVER
IDT54/74FCT16244T/AT/CT/ET
IDT54/74FCT162244T/AT/CT/ET
IDT54/74FCT166244T/AT/CT
IDT54/74FCT162H244T/AT/CT/ET
Integrated Device Technology, Inc.
FEATURES:
• Common features:
– 0.5 MICRON CMOS Technology
– High-speed, low-power CMOS replacement for
ABT functions
– Typical tSK(o) (Output Skew) < 250ps
– Low input and output leakage ≤ 1µA (max.)
– ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
– Packages include 25 mil pitch SSOP, 19.6 mil pitch
TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack
– Extended commercial range of -40°C to +85°C
• Features for FCT16244T/AT/CT/ET:
– High drive outputs (-32mA IOH, 64mA IOL)
– Power off disable outputs permit “live insertion”
– Typical VOLP (Output Ground Bounce) < 1.0V at
VCC = 5V, TA = 25°C
DESCRIPTION:
The16-BitBuffer/LineDriverisforbusinterfaceorsignalbuffering
applicationsrequiringhighspeedandlowpowerdissipation. These
devices have a flow through pin organization, and shrink packaging
to simplify board layout. All inputs are designed with hysteresis for
improvednoisemargin. Thethree-statecontrolsallowindependent
4-bit, 8-bit or combined 16-bit operation. These parts are plug in
replacementsfor54/74ABT16244wherehigherspeed,lowernoise
or lower power dissipation levels are desired.
The FCT16244T/AT/CT/ET are ideally suited for driving
high capacitance loads (>200pF) and low impedance
backplanes. These "high drive" buffers are designed with
power off disable capability to allow "live insertion" of boards
when used in a backplane interface.
TheFCT162244T/AT/CT/EThavebalancedoutputcurrent
levels and current limiting resistors. These offer low ground
bounce, minimal undershoot, and controlled output fall times,
reducing the need for external series terminating resistors
while still providing very high speed operation for loads of less
than 200pF.
• Features for FCT162244T/AT/CT/ET:
– Balanced Output Drivers: ±24mA (commercial),
±16mA (military)
The FCT166244T/AT/CT are suited for very low noise,
point-to-pointdrivingwherethereisasinglereceiver, oravery
light lumped load (<100pF). The buffers are designed to limit
the output current to levels which will avoid noise and ringing
on the signal lines without using external series terminating
resistors.
– Reduced system switching noise
– Typical VOLP (Output Ground Bounce) < 0.6V at
VCC = 5V,TA = 25°C
• Features for FCT166244T/AT/CT:
– Light Drive Balanced Output: ±8mA (commercial),
±6mA (military)
The FCT162H244T/AT/CT/ET have "Bus-Hold" which re-
tains the input's last state whenever the input goes to high
impedance. This prevents "floating" inputs and eliminates the
need for pull-up/down resistors.
– Minimal system switching noise
– Typical VOLP (Output Ground Bounce) < 0.25V at
VCC = 5V,TA = 25°C
• Features for FCT162H244T/AT/CT/ET:
– Bus-Hold retains last active bus state during 3-state
– Eliminates the need for external pull up resistors
FUNCTIONAL BLOCK DIAGRAM
3OE
1OE
1Y1
3A1
3A2
3Y1
3Y2
1A1
1A2
1Y2
1Y3
3A3
3A4
3Y3
3Y4
1A3
1A4
1Y4
4OE
2OE
4A1
4A2
4A3
2Y1
4Y1
4Y2
4Y3
2A1
2A2
2Y2
2Y3
2A3
4A4
2Y4
4Y4
2A4
2544 drw 02
2544 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
OCTOBER 1996
1996 Integrated Device Technology, Inc.
5.2
DSC-2544/9
15
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET,
166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1Y1
2OE
1A1
1OE
1Y1
2OE
1A1
2
2
1Y2
GND
1Y3
3
1A2
GND
1A3
1A4
VCC
2A1
2A2
GND
2A3
2A4
3A1
3A2
GND
3A3
3A4
VCC
4A1
4A2
GND
4A3
4A4
1Y2
3
1A2
4
GND
1Y3
4
GND
1A3
5
5
1Y4
6
1Y4
6
1A4
VCC
2Y1
7
VCC
2Y1
7
VCC
2A1
8
8
9
2Y2
9
2A2
2Y2
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GND
2Y3
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GND
2A3
GND
2Y3
2Y4
2A4
2Y4
SO48-1
SO48-2
SO48-3
E48-1
3Y1
3A1
3Y1
3Y2
3A2
3Y2
GND
3Y3
GND
3Y3
GND
3A3
3Y4
3Y4
3A4
VCC
4Y1
VCC
4A1
VCC
4Y1
4Y2
4A2
4Y2
GND
4Y3
GND
4A3
GND
4Y3
4Y4
4A4
4Y4
3OE
4OE
3OE
4OE
2544 drw 03
2544 drw 04
SSOP/
TSSOP/TVSOP
TOP VIEW
CERPACK
TOP VIEW
PIN DESCRIPTION
Pin Names
Description
xOE
xAx
3–State Output Enable Inputs (Active LOW)
Data Inputs(1)
xYx
3-State Outputs
2544 tbl 01
NOTE:
1. On FCT16xH these pins have “Bus-hold”. All other pins are standard
inputs, outputs or I/Os.
5.2
2
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET,
166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATINGS(1)
FUNCTION TABLE(1)
Inputs
Outputs
xYx
Symbol
Description
Max.
Unit
(2) Terminal Voltage with Respect to
x
xAx
L
OE
L
VTERM
–0.5 to +7.0
V
GND
L
(3) Terminal Voltage with Respect to
GND
VTERM
–0.5 to
VCC +0.5
V
L
H
H
Z
H
X
TSTG
Storage Temperature
DC Output Current
–65 to +150 °C
2544 tbl 02
NOTE:
IOUT
–60 to +120 mA
1. H = HIGH Voltage Level
X = Don’t Care
2544 lnk 03
NOTES:
1. StressesgreaterthanthoselistedunderABSOLUTEMAXIMUMRATINGS
may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions
above those indicated in the operational sections of this specification is
not implied. Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
2. All device terminals except FCT162XXXT and FCT166XXXT output and
I/O terminals.
3. Output and I/O terminals for FCT162XXXT and FCT166XXXT.
L = LOW Voltage Level
Z = High Impedance
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol
Parameter(1)
Input
Conditions
IN = 0V
Typ. Max. Unit
CIN
V
3.5
6.0
pF
Capacitance
Output
COUT
V
OUT = 0V
3.5
8.0
pF
Capacitance
2544 lnk 04
NOTE:
1. This parameter is measured at characterization but not tested.
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (STANDARD PARTS)
Following Conditions Apply Unless Otherwise Specified:
Commercial: TA = –40°C to +85°C, VCC = 5.0V ± 10%; Military: TA = –55°C to +125°C, VCC= 5.0V ± 10%
Symbol
Parameter
Input HIGH Level
Test Conditions(1)
Min. Typ.(2) Max.
Unit
VIH
Guaranteed Logic HIGH Level
2.0
—
—
—
—
—
—
—
—
–80
—
—
—
—
—
0.8
±1
V
VIL
II H
Input LOW Level
Guaranteed Logic LOW Level
V
Input HIGH Current (Input pins)(5)
Input HIGH Current (I/O pins)(5)
Input LOW Current (Input pins)(5)
Input LOW Current (I/O pins)(5)
High Impedance Output Current
(3-State Output pins)(5)
VCC = Max.
VI = VCC
—
µA
—
±1
II L
VI = GND
—
±1
—
±1
IOZH
IOZL
VIK
VCC = Max.
VO = 2.7V
VO = 0.5V
—
±1
µA
—
±1
Clamp Diode Voltage
VCC = Min., IIN = –18mA
VCC = Max., VO = GND(3)
—
–0.7
–140
100
5
–1.2
–225
—
V
IOS
VH
Short Circuit Current
mA
mV
µA
Input Hysteresis
ICCL
ICCH
ICCZ
Quiescent Power Supply Current
VCC = Max., VIN = GND or VCC
500
2544 lnk 05
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. Duration of the condition can not exceed one second.
5. The test limit for this parameter is ± 5µA at TA = –55°C.
5.2
3
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET,
166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (BUS-HOLD)
Following Conditions Apply Unless Otherwise Specified:
Commercial: TA = –40°C to +85°C, VCC = 5.0V ± 10%; Military: TA = –55°C to +125°C, VCC= 5.0V ± 10%
Symbol
Parameter
Input HIGH Level
Input LOW Level
Test Conditions(1)
Min. Typ.(2) Max.
Unit
VIH
Guaranteed Logic HIGH Level
2.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.8
±1
V
VIL
II H
Guaranteed Logic LOW Level
V
Input
Standard Input(5)
VCC = Max.
VI = VCC
—
µA
HIGH
Current(4)
Standard I/O(5)
Bus-hold Input
Bus-hold I/O
—
±1
—
±100
±100
±1
—
II L
Input
LOW
Standard Input(5)
Standard I/O(5)
VI = GND
—
—
±1
Current(4) Bus-hold Input
—
±100
±100
—
Bus-hold I/O
—
IBHH
IBHL
Bus Hold
Bus-hold Input
VCC = Min.
VCC = Max.
VI = 2.0V
VI = 0.8V
–50
+50
µA
µA
Sustain
Current(4)
—
IOZH
IOZL
VIK
High Impedance Output Current
(3-State Output pins)(5,6)
Clamp Diode Voltage
VO = 2.7V
VO = 0.5V
—
—
—
—
±1
±1
VCC = Min., IIN = –18mA
VCC = Max., VO = GND(3)
—
—
–0.7
–140
100
5
–1.2
–225
—
V
IOS
VH
Short Circuit Current
–80
—
mA
mV
µA
Input Hysteresis
ICCL
ICCH
ICCZ
Quiescent Power Supply Current
VCC = Max., VIN = GND or VCC
—
500
2544 lnk 06
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. Pins with Bus-hold are identified in the pin description.
5. The test limit for this parameter is ± 5µA at TA = –55°C.
6. Does not include Bus-hold I/O pins.
5.2
4
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET,
166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
OUTPUT DRIVE CHARACTERISTICS FOR FCT16244T
Symbol
Parameter
Test Conditions(1)
VCC = Max., VO = 2.5V(3)
Min. Typ.(2) Max.
Unit
IO
Output Drive Current
–50
2.5
2.4
—
3.5
3.5
–180
—
mA
VOH
Output HIGH Voltage
VCC = Min.
IOH = –3mA
V
V
VIN = VIH or VIL
IOH = –12mA MIL.
IOH = –15mA COM'L.
IOH = –24mA MIL.
IOH = –32mA COM'L.(4)
IOL = 48mA MIL.
—
2.0
—
3.0
0.2
—
—
0.55
±1
V
V
VOL
Output LOW Voltage
VCC = Min.
VIN = VIH or VIL
IOL = 64mA COM'L.
IOFF
Input/Output Power Off Leakage(5) VCC = 0V, VIN or VO ≤ 4.5V
—
µA
2544 lnk 07
OUTPUT DRIVE CHARACTERISTICS FOR FCT162244T
Symbol
Parameter
Test Conditions(1)
Min. Typ.(2) Max.
Unit
IODL
Output LOW Current
VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3)
60
–60
2.4
115
200
mA
VOUT = 1.5V(3)
IODH
VOH
Output HIGH Current
Output HIGH Voltage
VCC = 5V, VIN = VIH or VIL,
–115 –200
mA
V
VCC = Min.
VIN = VIH or VIL
VCC = Min.
IOH = –16mA MIL.
IOH = –24mA COM'L.
IOL = 16mA MIL.
3.3
0.3
—
VOL
Output LOW Voltage
—
0.55
V
VIN = VIH or VIL
IOL = 24mA COM'L.
2544 lnk 08
OUPUT DRIVE CHARACTERISTICS FOR FCT166244T
Symbol
Parameter
Test Conditions(1)
CC = 5V, VIN = VIH or VIL,
OUT= 1.5V(3)
CC = 5V, VIN = VIH or VIL,
OUT= 1.5V(3)
Min. Typ.(2) Max.
Unit
I
I
ODL
Output LOW Current
V
V
V
16
–16
2.4
48
–48
3.3
96
–96
—
mA
ODH
Output HIGH Current
Output HIGH Voltage
V
mA
V
V
OH
OL
V
V
V
V
CC = Min.
I
I
I
I
OH = –6mA MIL.
OH = –8mA COM'L.
OL = 6mA MIL.
IN = VIH or VIL
CC = Min.
V
Output LOW Voltage
—
0.3
0.55
V
IN = VIH or VIL
OL = 8mA COM'L.
2544 lnk 09
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. Duration of the condition can not exceed one second.
5. The test limit for this parameter is ± 5µA at TA = –55°C.
5.2
5
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET,
166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
Min. Typ.(2) Max.
Unit
∆ICC
Quiescent Power Supply Current
TTL Inputs HIGH
V
V
CC = Max.
—
0.5
1.5
mA
IN = 3.4V(3)
ICCD
Dynamic Power Supply
Current(4)
V
CC = Max.
V
IN = VCC
—
60
100
µA/
MHz
Outputs Open
xOE = GND
VIN = GND
One Input Toggling
50% Duty Cycle
IC
Total Power Supply Current(6)
V
CC = Max.
V
IN = VCC
—
—
0.6
0.9
1.5
2.3
mA
Outputs Open
fi = 10MHz
VIN = GND
50% Duty Cycle
xOE = GND
V
V
IN = 3.4V
IN = GND
One Bit Toggling
V
CC = Max.
V
IN = VCC
—
—
2.4
6.4
4.5(5)
Outputs Open
fi = 2.5MHz
VIN = GND
50% Duty Cycle
xOE = GND
V
V
IN = 3.4V
IN = GND
16.5(5)
Sixteen Bits Toggling
2544 tbl 10
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V). All other inputs at VCC or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ∆ICC DHNT + ICCD (fCPNCP/2 + fiNi)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
NCP = Number of Clock Inputs at fCP
fi = Input Frequency
Ni = Number of Inputs at fi
5.2
6
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET,
166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT16244T/FCT162244T
FCT16244T/162244T/166244T
FCT16244AT/162244AT/166244AT
Com'l. Mil.
Com'l. Mil.
Symbol
tPLH
Parameter
Propagation Delay
xAx to xYx
Condition(1)
CL = 50pF
RL = 500Ω
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Unit
1.5
1.5
1.5
—
6.5
1.5
7.0
1.5
1.5
1.5
—
4.8
1.5
5.1
ns
tPHL
tPZH
Output Enable Time
8.0
7.0
0.5
1.5
1.5
—
8.5
7.5
0.5
6.2
5.6
0.5
1.5
1.5
—
6.5
5.9
0.5
ns
ns
tPZL
tPHZ
Output Disable Time
Output Skew(3)
tPLZ
tSK(o)
ns
2544 tbl 11
FCT16244CT/162244CT/166244CT
Com'l. Mil.
FCT16244ET/162244ET
Com'l. Mil.
Symbol
tPLH
Parameter
Propagation Delay
xAx to xYx
Condition(1)
CL = 50pF
RL = 500Ω
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Unit
1.5
1.5
1.5
—
4.1
1.5
4.6
1.5
3.2
—
—
ns
tPHL
tPZH
Output Enable Time
5.8
5.2
0.5
1.5
1.5
—
6.5
5.7
0.5
1.5
1.5
—
4.4
3.6
0.5
—
—
—
—
—
—
ns
ns
tPZL
tPHZ
Output Disable Time
Output Skew(3)
tPLZ
tSK(o)
ns
2544 tbl 12
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
5.2
7
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET,
166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
SWITCH POSITION
TEST CIRCUITS FOR ALL OUTPUTS
VCC
Test
Switch
7.0V
Open Drain
Disable Low
Closed
500Ω
500Ω
VOUT
VIN
Enable Low
Pulse
Generator
D.U.T.
Open
All Other Tests
DEFINITIONS:
CL= Load capacitance: includes jig and probe capacitance.
2544 lnk 13
50pF
C L
T
R
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
2544 drw 05
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
3V
DATA
1.5V
0V
INPUT
LOW-HIGH-LOW
tH
tSU
1.5V
PULSE
3V
1.5V
0V
TIMING
INPUT
tW
ASYNCHRONOUS CONTROL
tREM
PRESET
3V
1.5V
0V
CLEAR
HIGH-LOW-HIGH
PULSE
1.5V
ETC.
SYNCHRONOUS CONTROL
PRESET
3V
2544 drw 07
1.5V
0V
CLEAR
tSU
tH
CLOCK ENABLE
ETC.
2544 drw 06
PROPAGATION DELAY
ENABLE AND DISABLE TIMES
ENABLE
DISABLE
3V
1.5V
0V
3V
SAME PHASE
CONTROL
INPUT
1.5V
0V
INPUT TRANSITION
tPLH
tPHL
tPHL
tPZL
tPLZ
VOH
1.5V
VOL
OUTPUT
3.5V
1.5V
3.5V
VOL
OUTPUT
NORMALLY
LOW
SWITCH
CLOSED
tPLH
0.3V
0.3V
3V
1.5V
0V
tPZH
tPHZ
OPPOSITE PHASE
INPUT TRANSITION
VOH
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
1.5V
0V
2544 drw 08
0V
2544 drw 09
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control
Disable-HIGH
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns
5.2
8
IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET,
166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT
XX
FCT
XXXX
X
X
X
X
Temp. Range
Drive
Bus Hold
Package
Process
Device Type
Blank
B
Commercial
MIL-STD-883, Class B
PV
PA
PF
E
Shrink Small Outline Package (SO48-1)
Thin Shrink Small Outline Package (SO48-2)
Thin Very Small Outline Package (SO48-3)
CERPACK (E48-1)
244T
Non-Inverting 16-Bit Buffer/Line Driver
244AT
244CT
244ET
Blank
H
Standard
Bus-hold
16-Bit High Drive
16-Bit Balanced Drive
16-Bit Light Drive
16
162
166
54
74
–55
–40
°
°
C to +125
°C
C to +85
°
C
2544 drw 10
5.2
9
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