ETC IDT74FCT244CTQ

IDT54/74FCT244T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
FAST CMOS OCTAL
BUFFER/LINE
DRIVER
FEATURES:
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IDT54/74FCT244T/AT/CT
DESCRIPTION:
Std., A, and C grades
Low input and output leakage ≤1µA (max.)
CMOS power levels
True TTL input and output compatibility:
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
High Drive outputs (-15mA IOH, 64mA IOL)
Meets or exceeds JEDEC standard 18 specifications
Military product compliant to MIL-STD-883, Class B and DESC
listed (dual marked)
Power off disable outputs permit "live insertion"
Available in the following packages:
– Industrial: SOIC, SSOP, QSOP, TSSOP
– Military: CERDIP, LCC
The IDT octal buffer/line driver is built using an advanced dual metal
CMOS technology. The FCT244T is designed to be employed as a memory
and address driver, clock driver, and bus-oriented transmitter/ receiver
which provides improved board density.
FUNCTIONAL BLOCK DIAGRAM
OE A
OE B
DA 0
OA 0
OB 0
DB 0
DA 1
OA 1
OB 1
DB 1
DA 2
OA 2
OB 2
DB 2
DA 3
OA 3
OB 3
DB 3
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
JUNE 2002
1
© 2002 Integrated Device Technology, Inc.
DSC-5586/2
IDT54/74FCT244T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
DB0
OB1
5
16
OA1
DA2
6
15
OB2
7
14
DB1
OA2
DA3
8
13
DB2
OB3
GND
9
12
OA3
10
11
DB3
DA1
4
OB1
5
DA2
6
OB2
7
8
DA3
20 19
18
1
17
OA0
DB0
16
OA1
15
DB1
OA2
14
9 10 11 12 13
LCC
TOP VIEW
CERDIP/ SOIC/ SSOP/ QSOP/ TSSOP
TOP VIEW
PIN DESCRIPTION
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
Max
Unit
Pin Names
VTERM(2) Terminal Voltage with Respect to GND
–0.5 to +7
V
OEA, OEB
VTERM(3) Terminal Voltage with Respect to GND
Description
3-State Output Enable Inputs (Active LOW)
–0.5 to VCC+0.5
V
Dxx
Inputs
TSTG
Storage Temperature
–65 to +150
°C
Oxx
Outputs
IOUT
DC Output Current
–60 to +120
mA
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
Vcc by +0.5V unless otherwise noted.
2. Inputs and Vcc terminals only.
3. Output and I/O terminals only.
FUNCTION TABLE(1)
OEA
L
L
H
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol
Parameter(1)
Conditions
Typ.
OEB
17
3 2
DB2
4
OB0
DA1
VCC
OE B
OA0
OA3
18
OEA
2
3
DA0
DB3
VCC
19
OB3
20
GND
INDEX
1
OEA
OB0
DA0
PIN CONFIGURATION
Max.
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High Impedance
Unit
CIN
Input Capacitance
VIN = 0V
6
10
pF
COUT
Output Capacitance
VOUT = 0V
8
12
pF
Inputs
OEB
L
L
H
NOTE:
1. This parameter is measured at characterization but not tested.
2
D
L
H
X
Outputs
L
H
Z
IDT54/74FCT244T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%; Military: TA = –55°C to +125°C, VCC = 5.0V ±10%
Symbol
Test Conditions(1)
Parameter
Min.
Typ.(2)
Max.
Unit
VIH
Input HIGH Level
Guaranteed Logic HIGH Level
2
—
—
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
—
—
0.8
V
IIH
Input HIGH Current(4)
VCC = Max.
VI = 2.7V
—
—
±1
µA
IIL
Input LOW Current(4)
VCC = Max.
VI = 0.5V
—
—
±1
µA
IOZH
High Impedance Output Current
VCC = Max
VO = 2.7V
—
—
±1
µA
IOZL
(3-State output pins)(4)
VO = 0.5V
—
—
±1
II
VIK
VH
Input HIGH Current(4)
Clamp Diode Voltage
Input Hysteresis
VCC = Max., VI = VCC (Max.)
VCC = Min, IIN = -18mA
—
—
—
—
–0.7
200
±1
–1.2
—
µA
V
mV
ICC
Quiescent Power Supply Current
VCC = Max., VIN = GND or VCC
—
0.01
1
µA
Min.
2.4
Typ.(2)
3.3
Max.
—
Unit
2
3
—
—
0.3
0.55
V
–60
–120
–225
mA
—
OUTPUT DRIVE CHARACTERISTICS
Symbol
VOH
Parameter
Output HIGH Voltage
VOL
Output LOW Voltage
IOS
Short Circuit Current
Test Conditions(1)
VCC = Min
IOH = –6mA MIL
VIN = VIH or VIL
IOH = –8mA IND
IOH = –12mA MIL
IOH = –15mA IND
VCC = Min
IOL = 48mA MIL
VIN = VIH or VIL
IOL = 64mA IND
VCC = Max., VO = GND(3)
V
NOTES:
1. For conditions shown as Min. or Max., 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. The test limit for this parameter is ±5µA at TA = –55°C.
3
IDT54/74FCT244T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
—
0.5
2
mA
VIN = VCC
VIN = GND
—
0.15
0.25
mA/
MHz
VCC = Max.
Outputs Open
fi = 10MHz
VIN = VCC
VIN = GND
—
1.5
3.5
mA
50% Duty Cycle
OEA = OEB = GND
One Bit Toggling
VIN = 3.4V
VIN = GND
—
1.8
4.5
VCC = Max.
Outputs Open
fi = 2.5MHz
VIN = VCC
VIN = GND
—
3
6(5)
50% Duty Cycle
OEA = OEB = GND
Eight Bits Toggling
VIN = 3.4V
VIN = GND
—
5
14(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
OEA = OEB = GND
One Input Toggling
50% Duty Cycle
Total Power Supply Current(6)
IC
NOTES:
1. For conditions shown as Min. or Max., 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 ∆ICC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ∆ICC DHNT + ICCD (fCP/2+ fiNi)
ICC = Quiescent Current
∆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)
fi = Output Frequency
Ni = Number of Outputs at fi
All currents are in milliamps and all frequencies are in megahertz.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
Dx to Ox
Output Enable Time
Condition(1)
CL = 50pF
RL = 500Ω
Output Disable Time
54FCT244T
Mil.
Min.(2) Max.
1.5
7
54/74FCT244AT
Ind.
Mil.
Min.(2) Max. Min.(2) Max.
1.5
4.8
1.5
5.1
54/74FCT244CT
Ind.
Mil.
Min.(2) Max.
Min.(2) Max.
1.5
4.1
1.5
4.6
Unit
ns
1.5
8.5
1.5
6.2
1.5
6.5
1.5
5.8
1.5
6.5
ns
1.5
7.5
1.5
5.6
1.5
5.9
1.5
5.2
1.5
5.7
ns
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
4
IDT54/74FCT244T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
V CC
SWITCH POSITION
7.0V
500Ω
V OUT
VIN
Pulse
Generator
D.U.T
.
50pF
RT
500Ω
Test
Switch
Open Drain
Disable Low
Enable Low
Closed
All Other Tests
Open
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
CL
Octal link
Test Circuits for All Outputs
DATA
INPUT
tH
tSU
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
3V
1.5V
0V
3V
1.5V
0V
tREM
tSU
LOW-HIGH-LOW
PULSE
1.5V
tW
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
3V
1.5V
0V
tH
1.5V
Octal link
Pulse Width
Octal link
Set-Up, Hold, and Release Times
ENABLE
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
OUTPUT
tPLH
OPPOSITE PHASE
INPUT TRANSITION
tPHL
3V
1.5V
0V
DISABLE
3V
1.5V
CONTROL
INPUT
OUTPUT
NORMALLY
LOW
3V
1.5V
0V
OUTPUT
NORMALLY
HIGH
Octal link
SWITCH
CLOSED
tPZH
SWITCH
OPEN
0V
tPLZ
tPZL
VOH
1.5V
VOL
3.5V
3.5V
1.5V
0.3V
VOL
tPHZ
0.3V
1.5V
0V
VOH
0V
Octal link
Propagation Delay
Enable and Disable Times
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
IDT54/74FCT244T/AT/CT
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
ORDERING INFORMATION
XXXX
IDT
XX
FCT
Device Type
Temp. Range
XX
Package
X
Process
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
Blank
B
Industrial
MIL-STD-883, Class B
SO
PY
Q
PG
Industrial Options
Small Outline IC
Shrink Small Outline Package
Quarter-size Small Outline Package
Thin Shrink Small Outline Package
D
L
Military Options
CERDIP
Leadless Chip Carrier
244T
244AT
244CT
Fast CMOS Octal Buffer/Line Driver
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
6
for Tech Support:
[email protected]
(408) 654-6459