IDT IDT49FCT3805, IDT49FCT3805A User Manual
查询IDT49FCT3805供应商
FAST CMOS
BUFFER/CLOCK DRIVER
Integrated Device Technology, Inc.
FEATURES:
• 0.5 MICRON CMOS Technology
• Guaranteed low skew < 500ps (max.)
• Very low duty cycle distortion < 1.0ns (max.)
• Very low CMOS power levels
• TTL compatible inputs and outputs
• Inputs can be driven from 3.3V or 5V components
• Two independent output banks with 3-state control
• 1:5 fanout per bank
• ‘Heartbeat’ monitor output
• Available in DIP, SOIC, SSOP, QSOP, Cerpack and
LCC packages
• Military product compliant to MIL-STD-883, Class B
•V
CC = 3.3V ± 0.3V
FUNCTIONAL BLOCK DIAGRAM
OEA
INA
INB
5
OA1-OA5
5
OB1-OB5
IDT49FCT3805/A
DESCRIPTION:
The FCT3805/A is a 3.3 volt, non-inverting clock driver built
using advanced dual metal 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 FCT3805/A offers low
capacitance inputs with hysteresis.
The FCT3805/A is designed for high speed clock distribution where signal quality and skew are critical. The FCT 3805
also allows single point-to-point transmission line driving in
applications such as address distribution, where one signal
must be distributed to multiple receivers with low skew and
high signal quality.
PIN CONFIGURATIONS
V
V
CCA
OA
OA
OA
GND
OA
OA
GND
1
2
1
2
3
3
4
A
Q
5
4
6
5
7
8
P20-1
D20-1
SO20-2
SO20-7
SO20-8
&
E20-1
20
19
18
17
16
15
14
13
CCB
OB
OB
OB
GND
OB
OB
MON
1
2
3
B
4
5
OE
B
B
IN
3102 drw 02
OB2
OB3
GNDB
OB4
OB5
3102 drw 03
OEB
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MON
3102 drw 01
OE
IN
INDEX
GNDA
GNDQ
A
A
OA3
OA4
OA5
9
10
DIP/SOIC/SSOP/QSOP/CERPACK
TOP VIEW
OA2
OA1
VCCA
3 2 20 19
4
5
6
7
8
1
L20-2
910111213
INA
INB
OEA
LCC
TOP VIEW
VCCB
OEB
12
11
OB1
18
17
16
15
14
MON
MILITARY AND COMMERCIAL TEMPERATURE RANGES OCTOBER 1995
1996 Integrated Device Technology, Inc. 9.5 DSC-3102/4
1
IDT49FCT3805/A
FAST CMOS BUFFER/CLOCK DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION FUNCTION TABLE
Pin Names Description
OEA,
OE
INA, IN
OAn, OB
B
B
n
3-State Output Enable Inputs (Active LOW)
Clock Inputs
Clock Outputs
MON Monitor Output
3102 tbl 01
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol Rating Commercial Military Unit
VTERM
(2)
Terminal Voltage
–0.5 to +4.6 –0.5 to +4.6 V
with Respect to
GND
VTERM
(3)
Terminal Voltage
–0.5 to +7.0 –0.5 to +7.0 V
with Respect to
GND
(4)
VTERM
Terminal Voltage
with Respect to
GND
TA Operating
–0.5 to V
+ 0.5
CC
–0.5 to VCC
+ 0.5
0 to +70 –55 to +125 °C
V
Temperature
TBIAS Temperature
–55 to +125 –65 to +135 °C
Under Bias
TSTG Storage
–55 to +125 –65 to +150 °C
Temperature
IOUT DC Output
–60 to +60 –60 to +60 mA
Current
NOTES:
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.
2. Vcc terminals.
3. Input terminals.
4. Output and I/O terminals.
3102 lnk 03
OE
OE
NOTE: 3102 tbl 02
1. H = HIGH, L = LOW, Z = High Impedance
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter
CIN Input
COUT Output
NOTE:
1. This parameter is measured at characterization but not tested.
Inputs Outputs
A,
OE
B INA, INB OAn, OBn MON
OE
LLLL
LHHH
HLZL
HH ZH
(1)
Capacitance
Capacitance
(1)
Conditions Typ. Max. Unit
VIN = 0V 3.5 5.0 pF
VOUT = 0V 3.5 5.0 pF
3102 lnk 04
9.5 2
IDT49FCT3805/A
FAST CMOS BUFFER/CLOCK DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: TA = 0°C to +70°C, VCC = 3.3V ± 0.3V; Military: TA = –55°C to +125°C, VCC = 3.3V ± 0.3V
Symbol Parameter Test Conditions
(1)
Min. Typ.
VIH Input HIGH Level (Input pins) Guaranteed Logic HIGH Level 2.0 — 5.5 V
Input HIGH Level (I/O pins) 2.0 — VCC+0.5
VIL Input LOW Level Guaranteed Logic LOW Level –0.5 — 0.8 V
(Input and I/O pins)
(6)
(6)
(6)
VCC = Max. VI = 5.5V — — ±1 µA
VI = VCC ——±1
(6)
VI = GND — — ±1
VI = GND — — ±1
II H Input HIGH Current (Input pins)
Input HIGH Current (I/O pins)
II L Input LOW Current (Input pins)
Input LOW Current (I/O pins)
IOZH High Impedance Output Current VCC = Max. VO = VCC ——±1µA
IOZL (3-State Output pins)
(6)
VO = GND — — ±1
VIK Clamp Diode Voltage VCC = Min., IIN = –18mA — –0.7 –1.2 V
IODH Output HIGH Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V
IODL Output LOW Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V
(3)
(3)
–36 –60 –110 mA
50 90 200 mA
VOH Output HIGH Voltage VCC = Min. IOH = –0.1mA VCC–0.2 — — V
VIN = VIH or VIL IOH = –6mA MIL.
I
OH = –8mA COM'L.
2.4
(5)
VOL Output LOW Voltage VCC = Min. IOL = 0.1mA — — 0.2 V
VIN = VIH or VIL IOL = 16mA — 0.2 0.4
IOL = 24mA — 0.3 0.50
(4)
(6)
VCC = 0V, VIN ≤ 4.5V — — ±1 µA
VCC = Max., VO = GND
(3)
–60 –135 –240 mA
IOFF Input Power Off Leakage
IOS Short Circuit Current
VH Input Hysteresis — — 150 — mV
ICCL Quiescent Power Supply Current VCC = Max., COM'L. — 0.1 10 µA
ICCH
VIN = GND or VCC MIL. — 0.1 100
ICCZ
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 = 3.3V, +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. This parameter is guaranteed but not tested.
5. V
OH = VCC -0.6V at rated current.
6. The test limit for this parameter is ±5µA at TA = –55°C.
(2)
Max. Unit
3.0 —
3102 lnk 05
9.5 3
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