IDT74FCT244DTSO [IDT]
Bus Driver, FCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20, SOIC-20;
| 型号： | IDT74FCT244DTSO |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Bus Driver, FCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20, SOIC-20 驱动器 |
| 文件： | 总6页 (文件大小：129K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FAST CMOS OCTAL
BUFFER/LINE DRIVER
IDT54/74FCT244/A/C
DESCRIPTION:
FEATURES:
−
−
−
−
−
−
−
−
IDT54/74FCT244A equivalent to FAST™ speed and drive
IDT54/74FCT244A 25% faster than FAST
IDT54/74FCT244C up to 55% faster than FAST
IOL = 64mA (commercial) and 48mA (military)
CMOS power levels (1mW typ. static)
Military product compliant to MIL-STD-883, Class B
Meets or exceeds JEDEC Standard 18 specifications
Available in the following packages:
The IDT octal buffer/line drivers are built using an advanced dual metal
CMOStechnology.The FCT244isdesignedtobeemployedasamemoryand
address driver, clock driver, and bus-oriented transmitter/receiver which
provides improved board density.
•
•
Commercial: SOIC
Military: CERDIP, LCC, CERPACK
FUNCTIONALBLOCKDIAGRAM
1
OEA
19
OEB
2
18
DA0
OA0
3
17
OB0
DB0
4
16
DA1
OA1
15
5
DB1
OB1
14
6
DA2
OA2
7
13
OB2
DB2
12
8
DA3
OA3
9
11
DB3
OB3
MILITARY AND COMMERCIAL TEMPERATURE RANGES
JUNE 2000
1
c
1999 Integrated Device Technology, Inc.
DSC-5420/-
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIALTEMPERATURERANGES
PINCONFIGURATION
VCC
20
19
18
17
16
15
14
13
12
11
1
2
OEA
DA0
OB0
DA1
OB1
INDEX
OEB
OA0
DB0
OA1
DB1
3
4
3
2
20 19
1
OA0
4
5
6
7
8
18
17
16
15
14
DA1
OB1
DA2
DB0
OA1
DB1
OA2
5
D20-1
SO20-2
E20-1
L20-2
DA2
OB2
DA3
OB3
6
OB2
DA3
OA2
DB2
OA3
DB3
7
8
9
10 11 12 13
9
GND
10
LCC
TOP VIEW
DIP/ SOIC/ CERPACK
TOP VIEW
FUNCTION TABLE (1)
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Commercial
Military
Unit
Inputs
(2)
VTERM
Terminal Voltage
with Respect to GND
–0.5 to +7
–0.5 to +7
V
OEA
L
OEB
L
D
L
Outputs
L
(3)
VTERM
Terminal Voltage
with Respect to GND
–0.5 to VCC
–0.5 to VCC
V
L
L
H
X
H
H
H
Z
TA
Operating Temperature
0 to +70
–55 to +125
–65 to +135
°C
°C
NOTE:
1. H = High Voltage Level
X = Don't Care
TBIAS
Temperature Under
Bias
–55 to +125
TSTG
PT
Storage Temperature
–55 to +125
0.5
–65 to +150
0.5
°C
W
L = Low Voltage Level
Z = HIGH Impedance
Power Dissipation
DC Output Current
IOUT
120
120
mA
8-link
PIN DESCRIPTION
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 +.5V unless otherwise noted.
Pin Names
Description
,
B
3–State Output Enable Inputs (Active LOW)
OEA OE
Dxx
Oxx
Inputs
Outputs
2. Input and VCC terminals only.
3. Outputs and I/O terminals only.
O
CAPACITANCE
Symbol
(TA = +25 C, f = 1.0MHz)
Parameter(1)
Conditions
Typ.
Max. Unit
CIN
Input Capacitance
VIN = 0V
6
10
12
pF
pF
COUT
Output
VOUT = 0V
8
Capacitance
8-link
NOTE:
1. This parameter is measured at characterization but not tested.
c
1998 Integrated Device Technology, Inc.
2
DSC-123456
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIALTEMPERATURERANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: VLC = 0.2V; VHC = VCC - 0.2V
Commercial: TA = 0°C to +70°C, VCC = 5.0V ± 5%; Military: TA = –55°C to +125°C, VCC = 5.0V ± 10%
Symbol
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
Min.
Typ.(2) Max.
Unit
VIH
2
—
—
—
0.8
5
V
VIL
II H
Input LOW Level
Guaranteed Logic LOW Level
VCC = Max.
—
—
V
Input HIGH Current
VI = VCC
—
µA
VI = 2.7V
VI = 0.5V
VI = GND
VO = VCC
VO = 2.7V
VO = 0.5V
VO = GND
—
—
5(4)
–5(4)
–5
II L
Input LOW Current
—
—
—
—
IOZH
IOZL
Off State (High Impedance)
Output Current
VCC = Max.
—
—
10
µA
—
—
10(4)
–10(4)
–10
–1.2
—
—
—
—
—
VIK
IOS
Clamp Diode Voltage
Short Circuit Current
Output HIGH Voltage
VCC = Min., IN = –18mA
VCC = Max.(3), VO = GND
—
–0.7
–120
VCC
VCC
4.3
4.3
GND
GND
0.3
0.3
V
mA
V
–60
VHC
VHC
2.4
2.4
—
VOH
VCC = 3V, VIN = VLC or VHC, IOH = –32µA
—
VCC = Min.
IOH = –300µA
—
VIN = VIH or VIL
IOH = –12mA MIL.
—
IOH = –15mA COM'L.
—
VOL
Output LOW Voltage
VCC = 3V, VIN = VLC or VHC, IOL = 300µA
VLC
V
(4)
VCC = Min.
IOL = 300µA
—
VLC
VIN = VIH or VIL
IOL = 48mA MIL.
IOL = 64mA COM'L.
—
0.55
0.55
—
8-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 and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
4. This parameter is guaranteed but not tested.
3
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIALTEMPERATURERANGES
POWER SUPPLY CHARACTERISTICS
VLC = 0.2V; VHC = VCC - 0.2V
Symbol
Parameter
Test Conditions(1)
Min.
Typ.(2) Max.
Unit
ICC
Quiescent Power Supply Current
VCC = Max.
—
0.2
1.5
mA
VIN ≥ VHC; VIN ≤ VLC
∆ICC
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current(4)
VCC = Max.
VIN = 3.4V
—
—
0.5
2
mA
(3)
ICCD
VCC = Max.
Outputs Open
VIN ≥ VHC
VIN ≤ VLC
0.15
0.25
mA/
MHz
=
OEB = GND
OEA
One Input Toggling
50% Duty Cycle
VCC = Max.
Outputs Open
fi = 10MHz
IC
Total Power Supply Current (6)
VIN ≥ VHC
VIN ≤ VLC
(FCT)
—
1.7
4
mA
50% Duty Cycle
=
VIN = 3.4V
VIN = GND
VIN ≥ VHC
VIN ≤ VLC
(FCT)
—
—
2
5
OEA OE
B = GND
One Bit Toggling
VCC = Max.
Outputs Open
fi = 2.5MHz
3.2
6.5(5)
50% Duty Cycle
=
OEB = GND
V = 3.4V
V = GND
IN
—
5.2
14.5(5)
OEA
Eight Bits Toggling
IN
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
CC
2. Typical values are at V = 5.0V, +25°C ambient.
IN
CC
3. Per TTL driven input (V = 3.4V); all other inputs at V or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
CC
5. Values for these conditions are examples of the I formula. These limits are guaranteed but not tested.
C
QUIESCENT
INPUTS
DYNAMIC
6. I = I
+ I
+ I
IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fiNi)
CC
I
= Quiescent Current
CC
IN
∆I = Power Supply Current for a TTL High Input (V = 3.4V)
H
D
= Duty Cycle for TTL Inputs High
T
H
N = Number of TTL Inputs at D
CCD
I
f
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
fi = Input Frequency
i
i
N = Number of Inputs at f
All currents are in milliamps and all frequencies are in megahertz.
(1,2)
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
54/74FCT244
Com'l. Mil.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
54/74FCT244A
54/74FCT244C
Com'l. Mil.
Com'l. Mil.
Symbol
tPLH
Parameter
Propagation Delay
DN to ON
Condition
CL = 50pF
RL = 500Ω
1.5 6.5 1.5
7
1.5 4.8 1.5 5.1 1.5 4.1 1.5 4.6
ns
tPHL
tPZH
tPZL
tPHZ
tPLZ
Output Enable Time
Output Disable Time
1.5
1.5
8
7
1.5 8.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5
1.5 7.5 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7
ns
ns
NOTES:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
4
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIALTEMPERATURERANGES
TESTCIRCUITSANDWAVEFORMS
SWITCH POSITION
TEST CIRCUITS FOR ALL OUTPUTS
Test
Switch
Closed
Open
V CC
7.0V
Open Drain
Disable Low
Enable Low
All Other Tests
500Ω
500Ω
V OUT
VIN
Pulse
D.U.T.
Generator
8-link
50pF
DEFINITIONS:
T
R
L
C
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
Octal link
PULSEWIDTH
SET-UP, HOLD, AND RELEASE TIMES
3V
1.5V
0V
DATA
INPUT
LOW-HIGH-LOW
tH
tSU
1.5V
PULSE
3V
1.5V
0V
TIMING
INPUT
tW
ASYNCHRONOUS CONTROL
tREM
PRESET
3V
CLEAR
ETC.
1.5V
0V
HIGH-LOW-HIGH
PULSE
1.5V
SYNCHRONOUS CONTROL
PRESET
3V
1.5V
0V
Octal link
CLEAR
CLOCK ENABLE
ETC.
tSU
tH
Octal link
PROPAGATIONDELAY
ENABLEANDDISABLETIMES
ENABLE
DISABLE
3V
3V
SAME PHASE
INPUT TRANSITION
1.5V
0V
CONTROL
INPUT
1.5V
0V
tPLH
tPHL
tPHL
tPZL
tPLZ
VOH
OUTPUT
3.5V
1.5V
3.5V
VOL
1.5V
VOL
OUTPUT
NORMALLY
LOW
SWITCH
CLOSED
tPLH
0.3V
0.3V
3V
tPZH
tPHZ
OPPOSITE PHASE
INPUT TRANSITION
1.5V
0V
VOH
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
1.5V
0V
Octal link
0V
Octal link
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control
Disable-HIGH.
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; Zo ≤ 50Ω; tF ≤ 2.5ns;
tR ≤ 2.5ns.
5
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIALTEMPERATURERANGES
ORDERINGINFORMATION
IDT
XX
FCT
XXXX
XX
X
Temp. Range
Package
Process
Device Type
Blank
B
Commercial
MIL-STD-883, Class B
Commercial Options
Small Outline IC (SO20-2)
SO
Military Options
D
E
L
CERDIP (D20-1)
CERPACK (E20-1)
Leadless Chip Carrier (L20-2)
Octal Buffer/Line Driver
244
244A
244C
54
74
– 55°C to +125°C
0°C to +70°C
CORPORATE HEADQUARTERS
2975StenderWay
Santa Clara, CA 95054
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.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
6
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