IDT IDT74FCT16244CT Fast cmos 16-bit buffer/line driver Datasheet

FAST CMOS 16-BIT
BUFFER/LINE DRIVER
Integrated Device Technology, Inc.
IDT54/74FCT16244T/AT/CT/ET
IDT54/74FCT162244T/AT/CT/ET
IDT54/74FCT166244T/AT/CT
IDT54/74FCT162H244T/AT/CT/ET
FEATURES:
DESCRIPTION:
• 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
• Features for FCT162244T/AT/CT/ET:
– Balanced Output Drivers: ±24mA (commercial),
±16mA (military)
– 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)
– 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
The 16-Bit Buffer/Line Driver is for bus interface or signal buffering
applications requiring high speed and low power dissipation. These
devices have a flow through pin organization, and shrink packaging
to simplify board layout. All inputs are designed with hysteresis for
improved noise margin. The three-state controls allow independent
4-bit, 8-bit or combined 16-bit operation. These parts are plug in
replacements for 54/74ABT16244 where higher speed, lower noise
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.
The FCT162244T/AT/CT/ET have balanced output current
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.
The FCT166244T/AT/CT are suited for very low noise,
point-to-point driving where there is a single receiver, or a very
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.
The FCT162H244T/AT/CT/ET have "Bus-Hold" which retains 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.
FUNCTIONAL BLOCK DIAGRAM
3OE
1OE
1A1
1Y1
1A2
1Y2
1A3
1A4
3 A1
3Y1
3 A2
3Y2
1Y3
3 A3
3Y3
1Y4
3 A4
3Y4
4OE
2OE
2A1
2Y1
2A2
2Y2
2A3
2Y3
2A4
2Y4
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
4Y1
4 A2
4Y2
4 A3
4Y3
4 A4
4Y4
2544 drw 02
2544 drw 01
MILITARY AND COMMERCIAL TEMPERATURE RANGES
1996 Integrated Device Technology, Inc.
4 A1
5.2
OCTOBER 1996
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
1OE
1
48
2OE
1OE
1
48
2OE
1Y1
2
47
1A1
1Y1
2
47
1A1
1Y2
3
46
1A2
1Y2
3
46
1A2
GND
4
45
GND
GND
4
45
GND
1Y3
5
44
1A3
1Y3
5
44
1A3
1Y4
6
43
1A4
1Y4
6
43
1A4
VCC
7
42
VCC
VCC
7
42
VCC
2Y1
8
41
2A1
2Y1
8
41
2A1
2Y2
9
40
2A2
2Y2
9
40
2A2
GND
10
39
GND
GND
10
39
GND
2Y3
11
38
2A3
2Y3
11
38
2A3
2Y4
12
2A4
2Y4
12
37
2A4
3Y1
13
SO48-1 37
SO48-2
SO48-3 36
3A1
3Y1
13
36
3A1
3Y2
14
35
3A2
3Y2
14
35
3A2
GND
15
34
GND
GND
15
34
GND
3Y3
16
33
3A3
3Y3
16
33
3A3
3Y4
17
32
3A4
3Y4
17
32
3A4
VCC
18
31
VCC
VCC
18
31
VCC
4Y1
19
30
4A1
4Y1
19
30
4A1
4Y2
20
29
4A2
4Y2
20
29
4A2
GND
21
28
GND
GND
21
28
GND
4Y3
22
27
4A3
4Y3
22
27
4A3
4Y4
23
26
4A4
4Y4
23
26
4A4
4OE
24
25
3OE
4OE
24
25
3OE
SSOP/
TSSOP/TVSOP
TOP VIEW
E48-1
2544 drw 03
2544 drw 04
CERPACK
TOP VIEW
PIN DESCRIPTION
Pin Names
xOE
Description
3–State Output Enable Inputs (Active LOW)
xAx
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
ABSOLUTE MAXIMUM RATINGS(1)
FUNCTION TABLE(1)
Symbol
Description
Max.
VTERM(2) Terminal Voltage with Respect to –0.5 to +7.0
GND
(3)
Terminal Voltage with Respect to
VTERM
–0.5 to
GND
VCC +0.5
TSTG
Storage Temperature
–65 to +150
Unit
V
I OUT
mA
DC Output Current
MILITARY AND COMMERCIAL TEMPERATURE RANGES
–60 to +120
xOE
Inputs
xAx
Outputs
xYx
L
L
L
L
H
H
H
X
Z
V
°C
2544 tbl 02
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High Impedance
2544 lnk 03
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. All device terminals except FCT162XXXT and FCT166XXXT output and
I/O terminals.
3. Output and I/O terminals for FCT162XXXT and FCT166XXXT.
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol
Parameter(1)
CIN
Input
Capacitance
COUT
Output
Capacitance
Conditions
VIN = 0V
Typ.
3.5
VOUT = 0V
3.5
Max. Unit
6.0
pF
8.0
NOTE:
1. This parameter is measured at characterization but not tested.
pF
2544 lnk 04
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%
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
VIL
Input LOW Level
II H
Input HIGH Current (Input pins)(5)
Symbol
VIH
Min.
2.0
Typ.(2)
—
Max.
Guaranteed Logic LOW Level
—
—
0.8
V
VCC = Max.
—
—
±1
µA
—
—
±1
—
—
±1
—
—
±1
—
—
±1
VI = VCC
Input HIGH Current (I/O pins)(5)
II L
Input LOW Current (Input
pins)(5)
VI = GND
Input LOW Current (I/O pins)(5)
I OZH
High Impedance Output Current
VCC = Max.
VO = 2.7V
pins) (5)
I OZL
(3-State Output
VIK
Clamp Diode Voltage
I OS
Short Circuit Current
VH
Input Hysteresis
I CCL
I CCH
I CCZ
Quiescent Power Supply Current
VO = 0.5V
VCC = Min., IIN = –18mA
VCC = Max., VO =
GND (3)
—
VCC = Max., VIN = GND or VCC
Unit
V
µA
—
—
±1
—
–0.7
–1.2
V
–80
–140
–225
mA
—
100
—
mV
—
5
500
µA
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
—
2544 lnk 05
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
VIH
Test Conditions(1)
Guaranteed Logic HIGH Level
Parameter
Input HIGH Level
VIL
Input LOW Level
II H
Input
Standard Input(5)
HIGH
Current(4)
II L
Input
Typ.(2)
—
Max.
—
Unit
V
Guaranteed Logic LOW Level
—
—
0.8
V
VCC = Max.
—
—
±1
µA
Standard I/O(5)
—
—
±1
Bus-hold Input
—
—
±100
Bus-hold I/O
—
—
±100
±1
VI = VCC
Standard Input(5)
—
—
LOW
Standard
I/O(5)
—
—
±1
Current(4)
Bus-hold Input
—
—
±100
Bus-hold I/O
—
—
±100
VI = 2.0V
–50
—
—
VI = 0.8V
+50
—
—
VO = 2.7V
—
—
±1
VO = 0.5V
—
—
±1
—
–0.7
–1.2
V
–80
–140
–225
mA
—
100
—
mV
—
5
500
µA
I BHH
Bus Hold
I BHL
Sustain
Current(4)
High Impedance Output Current
I OZH
Min.
2.0
Bus-hold Input
VI = GND
VCC = Min.
VCC = Max.
pins) (5,6)
I OZL
(3-State Output
VIK
Clamp Diode Voltage
I OS
Short Circuit Current
VH
Input Hysteresis
I CCL
I CCH
I CCZ
Quiescent Power Supply Current
VCC = Min., IIN = –18mA
VCC = Max., VO =
GND (3)
—
VCC = Max., VIN = GND or VCC
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
µA
µA
2544 lnk 06
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
IO
Parameter
Output Drive Current
Test Conditions(1)
VCC = Max., VO = 2.5V(3)
Min.
–50
Typ.(2)
—
Max.
–180
Unit
mA
VOH
Output HIGH Voltage
VCC = Min.
2.5
3.5
—
V
2.4
3.5
—
V
2.0
3.0
—
V
—
0.2
0.55
V
—
—
±1
I OH = –3mA
VIN = VIH or V IL
VOL
Output LOW Voltage
I OFF
Input/Output Power Off Leakage(5)
VCC = Min.
VIN = VIH or V IL
VCC = 0V, VIN or V O
I OH = –12mA MIL.
I OH = –15mA COM'L.
I OH = –24mA MIL.
I OH = –32mA COM'L.(4)
I OL = 48mA MIL.
I OL = 64mA COM'L.
≤ 4.5V
µA
2544 lnk 07
OUTPUT DRIVE CHARACTERISTICS FOR FCT162244T
Symbol
I ODL
Parameter
Output LOW Current
Test Conditions(1)
VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V (3)
Min.
60
Typ.(2)
115
Max.
200
Unit
mA
I ODH
Output HIGH Current
VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3)
–60
–115
–200
mA
VOH
Output HIGH Voltage
2.4
3.3
—
V
VOL
Output LOW Voltage
VCC = Min.
VIN = VIH or V IL
VCC = Min.
VIN = VIH or V IL
—
0.3
0.55
V
I OH = –16mA MIL.
I OH = –24mA COM'L.
I OL = 16mA MIL.
I OL = 24mA COM'L.
2544 lnk 08
OUPUT DRIVE CHARACTERISTICS FOR FCT166244T
Symbol
I ODL
Parameter
Output LOW Current
Test Conditions(1)
VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V (3)
Min.
16
Typ.(2)
48
Max.
96
Unit
mA
I ODH
Output HIGH Current
VCC = 5V, VIN = VIH or V IL, VOUT = 1.5V (3)
–16
–48
–96
mA
VOH
Output HIGH Voltage
2.4
3.3
—
V
VOL
Output LOW Voltage
VCC = Min.
VIN = VIH or VIL
VCC = Min.
VIN = VIH or V IL
—
0.3
0.55
V
I OH = –6mA MIL.
I OH = –8mA COM'L.
I OL = 6mA MIL.
I OL = 8mA COM'L.
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
2544 lnk 09
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
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
—
0.5
1.5
mA
VIN = VCC
VIN = GND
—
60
100
µA/
MHz
VCC = Max.
Outputs Open
fi = 10MHz
50% Duty Cycle
xOE = GND
One Bit Toggling
VIN = VCC
VIN = GND
—
0.6
1.5
mA
VIN = 3.4V
VIN = GND
—
0.9
2.3
VCC = Max.
Outputs Open
fi = 2.5MHz
50% Duty Cycle
xOE = GND
Sixteen Bits Toggling
VIN = VCC
VIN = GND
—
2.4
4.5 (5)
VIN = 3.4V
VIN = GND
—
6.4
16.5 (5)
Symbol
Parameter
∆ICC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC = Max.
VIN = 3.4V(3)
ICCD
Dynamic Power Supply
Current(4)
VCC = Max.
Outputs Open
xOE = GND
One Input Toggling
50% Duty Cycle
IC
Total Power Supply Current (6)
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
2544 tbl 10
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
Com'l.
FCT16244AT/162244AT/166244AT
Mil.
Com'l.
Mil.
Symbol
Parameter
Condition(1)
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Unit
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tSK(o)
Propagation Delay
xAx to xYx
Output Enable Time
CL = 50pF
RL = 500Ω
1.5
6.5
1.5
7.0
1.5
4.8
1.5
5.1
ns
1.5
8.0
1.5
8.5
1.5
6.2
1.5
6.5
ns
Output Disable Time
1.5
7.0
1.5
7.5
1.5
5.6
1.5
5.9
ns
Output Skew (3)
—
0.5
—
0.5
—
0.5
—
0.5
ns
2544 tbl 11
FCT16244CT/162244CT/166244CT
Com'l.
Symbol
Parameter
Condition(1)
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tSK(o)
Propagation Delay
xAx to xYx
Output Enable Time
CL = 50pF
RL = 500Ω
Min.(2)
1.5
FCT16244ET/162244ET
Mil.
Max.
Min.(2)
4.1
1.5
1.5
5.8
Output Disable Time
1.5
Output Skew (3)
—
Com'l.
Max.
Min.(2)
4.6
1.5
1.5
6.5
5.2
1.5
0.5
—
Mil.
Max.
Min.(2)
Max.
Unit
3.2
—
—
ns
1.5
4.4
—
—
ns
5.7
1.5
3.6
—
—
ns
0.5
—
0.5
—
—
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
ns
2544 tbl 12
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
V CC
500Ω
V OUT
VIN
Pulse
Generator
Test
Switch
Open Drain
Disable Low
Closed
7.0V
Enable Low
D.U.T.
Open
All Other Tests
50pF
RT
2544 lnk 13
DEFINITIONS:
CL= Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
500Ω
CL
2544 drw 05
SET-UP, HOLD AND RELEASE TIMES
DATA
INPUT
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
tH
tSU
tREM
tSU
PULSE WIDTH
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
LOW-HIGH-LOW
PULSE
1.5V
tW
HIGH-LOW-HIGH
PULSE
1.5V
3V
1.5V
0V
tH
2544 drw 07
2544 drw 06
PROPAGATION DELAY
ENABLE AND DISABLE TIMES
ENABLE
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
OUTPUT
tPLH
OPPOSITE PHASE
INPUT TRANSITION
tPHL
3V
1.5V
0V
VOH
1.5V
VOL
DISABLE
3V
1.5V
0V
CONTROL
INPUT
tPLZ
tPZL
OUTPUT
NORMALLY
LOW
3V
1.5V
0V
SWITCH
CLOSED
tPZH
OUTPUT
NORMALLY
HIGH
2544 drw 08
SWITCH
OPEN
3.5V
3.5V
1.5V
0.3V
VOL
tPHZ
0.3V
1.5V
0V
VOH
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
Temp. Range
X
Drive
XXXX
X
Bus Hold Device Type
X
Package
X
Process
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
244AT
244CT
244ET
Non-Inverting 16-Bit Buffer/Line Driver
Blank
H
Standard
Bus-hold
16
162
166
16-Bit High Drive
16-Bit Balanced Drive
16-Bit Light Drive
54
74
–55°C to +125°C
–40°C to +85°C
2544 drw 10
5.2
9
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