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49FCT20805PYGI8

P1-P3P4-P6P7-P8
1
IDT49FCT20805
2.5V CMOS DUAL 1-TO-5 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
FEBRUARY 2014
2014 Integrated Device Technology, Inc. DSC-6172/113c
IDT49FCT20805
INDUSTRIAL TEMPERATURE RANGE
2.5V CMOS DUAL
1-TO-5 CLOCK DRIVER
FUNCTIONAL BLOCK DIAGRAM
FEATURES:
• Advanced CMOS Technology
• Guaranteed low skew < 200ps (max.)
• Very low propagation delay < 2.5ns (max)
• Very low duty cycle distortion < 270ps (max)
• Very low CMOS power levels
• Operating frequency up to 166MHz
• TTL compatible inputs and outputs
• Two independent output banks with 3-state control
• 1:5 fanout per bank
• "Heartbeat" monitor output
•VCC = 2.5V ± 0.2V
• Available in SSOP and QSOP packages
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
DESCRIPTION:
The FCT20805 is a 2.5 volt clock driver built using advanced CMOS
technology. The device consists of two banks of drivers, each with a 1:5 fanout
and its own output enable control. The device has a "heartbeat" monitor for
diagnostics and PLL driving. The MON output is identical to all other outputs
and complies with the output specifications in this document. The FCT20805
offers low capacitance inputs.
The FCT20805 is designed for high speed clock distribution where signal
quality and skew are critical. The FCT20805 also allows single point-to-point
transmission line driving in applications such as address distribution, where one
signal must be distributed to multiple recievers with low skew and high signal
quality.
5
OA
1
-OA
5
OB
1
-OB
5
OE
A
IN
A
OE
B
IN
B
MON
5
2
INDUSTRIAL TEMPERATURE RANGE
IDT49FCT20805
2.5V CMOS DUAL 1-TO-5 CLOCK DRIVER
CAPACITANCE (TA = +25
O
C, f = 1.0MHz)
Symbol Parameter
(1)
Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 3 4 pF
COUT Output Capacitance VOUT = 0V — 6 pF
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names Description
OEA, OEB 3-State Output Enable Inputs (Active LOW)
INA, INB Clock Inputs
OAn, OBn Clock Outputs
M O N Monitor Output
FUNCTION TABLE
(1)
Inputs Outputs
OEA, OEB INA, INB OAn, OBn MON
LLLL
LHHH
HLZL
HHZH
NOTE:
1. H = HIGH
L = LOW
Z = High-Impedance
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol Description Max Unit
VCC Input Power Supply Voltage –0.5 to +4.6 V
VI Input Voltage –0.5 to +5.5 V
VO Output Voltage –0.5 to VCC+0.5 V
TJ Junction Temperature 150 ° C
TSTG Storage Temperature –65 to +165 °C
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS 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.
PIN CONFIGURATIONS
SSOP/ QSOP
TOP VIEW
OA1
OA3
OA4
GNDQ
INA
VCCA
OA2
GNDA
OA5
OEA
1
2
3
4
5
6
7
8
9
OB3
OB4
MON
IN
B
VCCB
OB1
OB2
GNDB
OB5
OEB
11
12
13
14
15
16
17
18
19
20
10
3
IDT49FCT20805
2.5V CMOS DUAL 1-TO-5 CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified
Industrial: TA = -40°C to +85°C, VCC = 2.5V ± 0.2V
Symbol Parameter Test Conditions
(1)
Min. Typ.
(2)
Max. Unit
VIH Input HIGH Level 1.7 — 5.5 V
VIL Input LOW Level –0.5 — 0.7 V
IIH Input HIGH Current VCC = Max. VI = 5.5V — — ±1
IIL Input LOW Current VCC = Max. VI = GND — — ±1 μA
IOZH High Impedance Output Current VCC = Max. VO = VCC ——±1
IOZL (3-State Outputs Pins) VO = GND — — ±1
VIK Clamp Diode Voltage VCC = Min., IIN = –18mA — –0.7 –1.2 V
IODH Output HIGH Current VCC = 2.5V, VIN = VIH or VIL, VO = 1.25V
(3,4)
–15 –35 –90 mA
IODL Output LOW Current VCC = 2.5V, VIN = VIH or VIL, VO = 1.25V
(3,4)
25 55 100 mA
IOS Short Circuit Current VCC = Max., VO = GND
(3,4)
–30 –50 –120 mA
VOH Output HIGH Voltage VCC = Min. IOH = –8mA 1.7
(5)
—— V
VIN = VIH or VIL IOH = –100μAVCC - 0.2 — —
VOL Output LOW Voltage VCC = Min. IOL = 8mA — 0.2 0.4 V
VIN = VIH or VIL IOL = 100μA — — 0.2
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 = 2.5V, 25°C ambient.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not tested.
5. VOH = Vcc -0.6V at rated current.
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49FCT20805PYGI8

Mfr. #:
Buy 49FCT20805PYGI8
Manufacturer:
IDT
Description:
Clock Drivers & Distribution 2.5V Dual 1:5 Clock Driver w/CMOS Output
Lifecycle:
New from this manufacturer.
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