IDT54/74FCT162244T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FAST CMOS 16-BIT
BUFFER/LINE DRIVER
DESCRIPTION:
FEATURES:
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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 ≤ 1µ A (max.)
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
25 mil pitch SSOP, 19.6 mil pitch TSSOP, 15.7 mil pitch TVSOP
and 25 mil pitch CERPACK packages
Extended commercial range of -40°C to +85°C
Balanced Output Drivers:
• ±24mA (commercial)
• ±16mA (military)
Reduced system switching noise
Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V,TA =
25°C
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IDT54/74FCT162244T/AT/CT/ET
The FCT162244T/AT/CT/ET 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 16bit operation. These parts are plug in replacements for 54/74ABT16244 where
higher speed, lower noise or lower power dissipation levels are desired.
The FCT162244T/AT/CT/ET has 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.
FUNCTIONAL BLOCK DIAGRAM
1 OE
3 OE
1A1
1Y 1
1A2
1Y 2
1A3
1A4
3A 1
3Y 1
3A 2
3Y 2
1Y 3
3A 3
3Y 3
1Y 4
3A 4
3Y 4
2 OE
4 OE
2A 1
2Y 1
2A 2
2Y 2
2A 3
2Y 3
2A 4
2Y 4
4A 1
4Y 1
4A 2
4Y 2
4A 3
4Y 3
4A 4
4Y 4
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AUGUST 1999
1
c
1999 Integrated Device Technology, Inc.
DSC-5461/-
IDT54/74FCT162244T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATION
1 OE
1Y 1
ABSOLUTE MAXIMUM RATINGS(1)
1
48
2
47
2O E
Symbol
VTERM(2)
Description
Terminal Voltage with Respect to GND
Max
–0.5 to +7
1A 1
VTERM(3)
Terminal Voltage with Respect to GND
–0.5 to VCC+0.5
V
TSTG
Storage Temperature
–65 to +150
°C
IOUT
DC Output Current
–60 to +120
1Y 2
3
46
1A 2
GND
4
45
G ND
1Y 3
5
44
1A 3
1Y 4
6
43
1A 4
VCC
7
42
VCC
2Y 1
8
41
2A 1
2Y 2
9
40
2A 2
GND
10
39
G ND
2Y 3
11
38
2A 3
2Y 4
12
37
2A 4
SO48-1
SO48-2
SO48-3
E48-1
3A 1
35
3A 2
15
34
G ND
3Y 3
16
33
3A 3
3Y 4
17
32
3A 4
VCC
18
31
VCC
4Y 1
19
30
4A 1
4Y 2
20
29
4A 2
GND
21
28
G ND
13
3Y 2
14
GND
4Y 3
22
27
4A 3
4Y 4
23
26
4A 4
24
25
4 OE
mA
5v16-link
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 Output and I/O terminals.
3. Output and I/O terminals
terminals for
for FCT162XXXT.
FCT162XXXT and FCT166XXXT.
CAPACITANCE (TA = +25OC, f = 1.0MHz)
Symbol
CIN
Parameter(1)
Input Capacitance
Conditions
VIN = 0V
Typ.
3.5
Max.
6
COUT
Output Capacitance
VOUT = 0V
3.5
8
Unit
pF
pF
5v16-link
36
3Y 1
Unit
V
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names
xOE
Description
3–State Output Enable Inputs (Active LOW)
xAx
Data Inputs
xYx
3-State Outputs
FUNCTION TABLE(1)
Inputs
xOE
3O E
2
Outputs
xYx
L
L
L
L
H
H
H
X
Z
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High-Impedance
SSOP/ TSSOP/ TVSOP/ CERPACK
TOP VIEW
xAx
IDT54/74FCT162244T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
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
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
VIL
Input LOW Level
Guaranteed Logic LOW Level
IIH
Input HIGH Current (Input pins)(5)
VCC = Max.
VI = VCC
Input HIGH Current (I/O pins)(5)
IIL
Input LOW Current (Input pins)(5)
VI = GND
Typ.(2)
—
Max.
—
Unit
V
—
—
0.8
V
—
—
±1
µA
—
—
±1
—
—
±1
—
—
±1
VO = 2.7V
—
—
±1
VO = 0.5V
—
—
±1
Input LOW Current (I/O pins)(5)
VCC = Max.
Min.
2
IOZH
High Impedance Output Current
IOZL
(3-State Output pins)(5)
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
—
–0.7
–1.2
V
IOS
Short Circuit Current
VCC = Max., VO = GND(3)
–80
–140
–250
mA
VH
Input Hysteresis
—
100
—
mV
ICCL
ICCH
ICCZ
Quiescent Power Supply Current
—
5
500
µA
—
VCC = Max.
VIN = GND or VCC
µA
5v16-link
OUTPUT DRIVE CHARACTERISTICS
Symbol
IODL
Parameter
Output LOW Current
Test Conditions(1)
VCC = 5V, VIN = VIH or VIL, VO = 1.5V(3)
Min.
60
Typ.(2)
115
Max.
200
Unit
mA
IODH
Output HIGH Current
VCC = 5V, VIN = VIH or VIL, VO = 1.5V(3)
–60
–115
–200
mA
VOH
Output HIGH Voltage
VCC = Min.
IOH = –16mA MIL
2.4
3.3
—
V
VIN = VIH or VIL
IOH = –24mA COM’L
—
0.3
0.55
V
VOL
Output LOW Voltage
VCC = Min.
IOL = 16mA MIL
VIN = VIH or VIL
IOL = 24mA COM’L
5v16-link
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 shorted 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.
3
IDT54/74FCT162244T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
Test Conditions(1)
Parameter
Min.
Typ.(2)
Max.
Unit
—
0.5
1.5
mA
∆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
VIN = VCC
VIN = GND
—
60
100
µ A/
MHz
IC
Total Power Supply Current(6)
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
VIN = VCC
VIN = GND
—
2.4
4.5(5)
VIN = 3.4V
VIN = GND
—
6.4
16.5(5)
VCC = Max.
Outputs Open
fi = 2.5MHz
50% Duty Cycle
xOE = GND
Sixteen Bits Toggling
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
4
IDT54/74FCT162244T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT162244T
Com'l.
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tSK(o)
FCT162244AT
Mil.
Com'l.
Min.(2)
1.5
1.5
Max.
4.8
Min.(2)
1.5
Max.
7
Min.(2)
CL = 50pF
RL = 500Ω
Max.
6.5
Min.(2)
1.5
Max.
5.1
Unit
ns
1.5
8
1.5
8.5
1.5
6.2
1.5
6.5
ns
Output Disable Time
1.5
7
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
Parameter
Propagation Delay
xAx to xYx
Output Enable Time
FCT162244CT
Com'l.
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tSK(o)
Mil.
Condition(1)
FCT162244ET
Mil.
Com'l.
Mil.
Condition(1)
Min.(2)
1.5
1.5
Max.
3.2
Min.(2)
1.5
Max.
4.6
Min.(2)
CL = 50pF
RL = 500Ω
Max.
4.1
Min.(2)
—
Max.
—
Unit
ns
1.5
5.8
1.5
6.5
1.5
4.4
—
—
ns
Output Disable Time
1.5
5.2
1.5
5.7
1.5
3.6
—
—
ns
Output Skew(3)
—
0.5
—
0.5
—
0.5
—
—
ns
Parameter
Propagation Delay
xAx to xYx
Output Enable Time
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
IDT54/74FCT162244T/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
Test
V CC
7.0V
Open Drain
Disable Low
500 Ω
All Other Tests
D.U.T.
RT
C
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
500 Ω
L
SET-UP, HOLD, AND RELEASE TIMES
DATA
INPUT
tH
t SU
TIMING
INPUT
t REM
t SU
Open
5v16-link
50pF
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
Closed
Enable Low
V OUT
V IN
Pulse
Generator
Switch
PULSE WIDTH
3V
1.5V
0V
3V
1.5V
0V
LOW -HIGH-LOW
PULSE
1.5V
tW
3V
1.5V
0V
HIGH-LOW -HIGH
PULSE
1.5V
3V
1.5V
0V
tH
ENABLE AND DISABLE TIMES
PROPAGATION DELAY
ENABLE
SAM E PHASE
INPUT TRANSITION
t PLH
t PH L
OUTPUT
t PLH
OPPOSITE PHASE
INPUT TRANSITION
t PH L
3V
1.5V
0V
DISABLE
3V
CONTROL
INPUT
1.5V
OUTPUT
NORMALLY
LOW
3V
1.5V
0V
SW ITCH
CLOSED
SW ITCH
OPEN
3.5V
3.5V
1.5V
0.3V
t PZH
OUTPUT
NORMALLY
HIGH
0V
t PLZ
t PZL
V OH
1.5V
V OL
V OL
t PHZ
0.3V
V OH
1.5V
0V
0V
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.
6
IDT54/74FCT162244T/AT/CT/ET
FAST CMOS 16-BIT BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT
XX
FCT
Temp. Range
XXX
X
XXXX
XX
X
Family
Bus Hold
Device Type
Package
Process
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
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
16-Bit Buffer/Line Driver
Blank
No Bus-Hold
162
Double-Density, 5 Volt, Balanced Drive
54
74
– 55°C to +125°C
– 40°C to +85°C
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com*
*To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2.
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