Integrated Device Technology, Inc.
FAST CMOS
BUFFER/CLOCK DRIVER
IDT49FCT805BT/CT
IDT49FCT806BT/CT
FEATURES:
• Military product compliant to MIL-STD-883, Class B
• 0.5 MICRON CMOS Technology
• Guaranteed low skew < 500ps (max.)
• Very low duty cycle distortion < 600ps (max.)
• Low CMOS power levels
• TTL compatible inputs and outputs
• TTL level output voltage swings
• High drive: -32mA I
OH, 48mA IOL
• Two independent output banks with 3-state control
• 1:5 fanout per bank
• ‘Heartbeat’ monitor output
• ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
• Available in DIP, SOIC, SSOP, QSOP, Cerpack and
LCC packages
DESCRIPTION:
The IDT49FCT805BT/CT and IDT49FCT806BT/CT are
clock drivers built using advanced dual metal CMOS technology. The IDT49FCT805BT/CT is a non-inverting clock driver
and the IDT49FCT806BT/CT is an inverting clock driver. Each
device consists of two banks of drivers. Each bank drives five
output buffers from a standard TTL compatible input. The
805BT/CT and 806BT/CT have extremely low output skew,
pulse skew, and package skew. The devices 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 805BT/CT and
806BT/CT offer low capacitance inputs with hysteresis.
FUNCTIONAL BLOCK DIAGRAMS
IDT49FCT805T IDT49FCT806T
OE
A
OEA
IN
A
IN
B
OE
B
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
5
5
OA1-OA
OB1-OB
MON
2920 drw 01
5
5
INA
INB
OEB
5
OA1-OA5
5
OB1-OB5
MON
2920 drw 02
MILITARY AND COMMERCIAL TEMPERATURE RANGES OCTOBER 1995
1996 Integrated Device Technology, Inc. 9.2 DSC-2920/5
1
IDT49FCT805BT/CT, 806BT/CT
FAST CMOS BUFFER/CLOCK DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
IDT49FCT805T
CC
V
OA1
OA2
OA3
GND
OA
OA5
GND
OEA
INA
1
2
3
4
5
4
6
7
P20-1
D20-1
SO20-2
SO20-7
SO20-8
&
E20-1
8
9
10
DIP/SOIC/SSOP/QSOP/CERPACK
TOP VIEW
20
19
18
17
16
15
14
13
12
11
VCC
OB1
OB2
OB3
GND
4
OB
OB5
MON
OEB
IN
B
2920 drw 03
INDEX
OA
GND
OA
OA
GND
OA2OA1V
3 2 20 19
3
4
CC
1
5
4
6
5
7
L20-2
8
910111213
AINAINBOEB
OE
LCC
TOP VIEW
CC
V
1
OB
18
17
16
15
14
MON
OB
OB
GND
OB
OB
2920 drw 04
2
3
4
5
IDT49FCT806T
VCC
OA1
OA2
OA3
GND
OA4
OA5
GND
OEA
IN
A
1
2
3
4
5
6
7
P20-1
D20-1
SO20-2
SO20-7
SO20-8
&
E20-1
8
9
10 11
DIP/SOIC/SSOP/QSOP/CERPACK
TOP VIEW
20
19
18
17
16
15
14
13
12
VCC
OB1
OB2
OB3
GND
OB
OB5
MON
OEB
B
IN
2920 drw 05
4
PIN DESCRIPTION
Pin Names Description
OE
A, OEB 3-State Output Enable Inputs (Active LOW)
INA, INB Clock Inputs
OAn, OBn Clock Outputs (FCT805T)
OA
n, OBn Clock Outputs (FCT806T)
MON Monitor Output (FCT805T)
MON
Monitor Output (FCT806T)
2920 tbl 01
INDEX
OA
3
4
GND
OA
OA
GND
5
4
6
7
5
8
FUNCTION TABLE
1
CC
V
OA2OA
3 2 20 19
9 10111213
1
L20-2
AINAINBOEB
OE
LCC
TOP VIEW
(1)
1
VCCOB
18
17
16
15
14
MON
OB
OB
GND
OB
OB
2920 drw 06
2
3
4
5
Outputs
OE
OE
Inputs
A,
OE
B INA, INB OAn, OBn MON
OE
49FCT805T 49FCT806T
OA
n,
OB
n
OA
OB
MON
MON
LLLLHH
LHHHLL
HLZLZH
HHZHZL
NOTE: 2920 tbl 02
1. H = HIGH, L = LOW, Z = High Impedance
9.2 2
IDT49FCT805BT/CT, 806BT/CT
FAST CMOS BUFFER/CLOCK DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol Rating Commercial Military Unit
(2)
VTERM
Terminal Voltage
–0.5 to +7.0 –0.5 to +7.0 V
with Respect to
GND
(3)
VTERM
TA Operating
Terminal Voltage
with Respect to
GND
–0.5 to V
+0.5
CC
–0.5 to V
CC
+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 +120 –60 to +120 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. No terminal voltage may exceed
CC by +0.5V unless otherwise noted.
V
2. Input and V
3. Output and I/O terminals.
CC terminals.
2920 lnk 03
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter
CIN Input
Capacitance
COUT Output
Capacitance
NOTE:
1. This parameter is measured at characterization but not tested.
(1)
Conditions Typ. Max. Unit
VIN = 0V 4.5 6.0 pF
VOUT = 0V 5.5 8.0 pF
2920 lnk 04
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified
Commercial: T
Symbol Parameter Test Conditions
V
IH
V
IL
I
I H
I
I L
I
OZH
I
OZL
II Input HIGH Current
V
IK
I
OS
V
OH
V
OL
I
OFF
V
H
I
CCL
I
CCH
I
CCZ
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 T
A = 0°C to +70°C, VCC = 5.0V ± 5%; Military: TA = –55°C to +125°C, VCC
(1)
= 5.0V ± 10%
Min. Typ.
(2)
Input HIGH Level Guaranteed Logic HIGH Level 2.0 — — V
Input LOW Level Guaranteed Logic LOW Level — — 0.8 V
(5)
(5)
VCC = Max. VI = 2.7V — —
VCC = Max. VI = 0.5V — —
Input HIGH Current
Input LOW Current
High Impedance Output Current VCC = Max. VO = 2.7V — —
(5)
(5)
VCC = Max., VI = V
VO = 0.5V — —
CC
(Max.) — —
(3-State Output pins)
Clamp Diode Voltage VCC = Min., IIN= –18mA — –0.7 –1.2 V
Short Circuit Current VCC = Max.
Output HIGH Voltage VCC = Min.
V
IN
= V
Output LOW Voltage VCC = Min.
V
IN
= VIH or V
Input/Output Power Off Leakage
(5)
VCC = 0V, VIN or VO ≤ 4.5V — —
(3)
, VO = GND –60 –120 –225 mA
IH
or V
IOH = –12mA MIL.
IL
I
OH
= –15mA COM'L.
IOH = –24mA MIL.
I
OH
= –32mA COM'L.
IOL = 32mA MIL.
IL
I
OL
= 48mA COM'L.
2.4 3.3 — V
2.0 3.0 —
(4)
— 0.3 0.55 V
Input Hysteresis for all inputs — — 150 — mV
Quiescent Power Supply Current VCC = Max., VIN = GND or V
A = –55°C.
CC
— 5 500
Max. Unit
±
1
µ
A
±
1
µ
A
±
1
µ
A
±
1
µ
A
±
1
µ
A
±
1
µ
A
µ
A
2920 lnk 05
9.2 3