IDT74FCT244CSO8 [ROCHESTER]
Bus Driver, FCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20, SOIC-20;
| 型号： | IDT74FCT244CSO8 |
| 厂家： | 
Rochester Electronics |
| 描述： | Bus Driver, FCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20, SOIC-20 驱动 光电二极管 逻辑集成电路 |
| 文件： | 总6页 (文件大小：77K) |
| 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
FEATURES:
DESCRIPTION:
• IDT54FCT244 equivalent to FAST™ speed and drive
• IDT54/74FCT244A 25% faster than FAST
• IDT74FCT244C 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:
– Commercial: SOIC
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.
– Military: CERDIP, LCC
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
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
JUNE 2002
1
© 2002 Integrated Device Technology, Inc.
DSC-5420/3
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIAL TEMPERATURERANGES
PINCONFIGURATION
VCC
20
19
18
17
16
15
14
13
12
11
1
2
3
4
OEA
DA0
OB0
DA1
OB1
INDEX
OEB
OA0
DB0
OA1
DB1
3
2
20 19
1
OA0
4
5
6
7
8
18
17
16
15
14
DA1
OB1
DB0
OA1
DB1
OA2
5
DA2
OB2
DA3
DA2
OB2
DA3
OB3
6
OA2
DB2
OA3
DB3
7
8
9
10 11 12 13
9
GND
10
CERDIP/ SOIC
TOP VIEW
LCC
TOP VIEW
ABSOLUTEMAXIMUMRATINGS(1)
PINDESCRIPTION
Pin Names
Symbol Rating
Commercial
Military
Unit
Description
(2)
VTERM
Terminal Voltage
–0.5 to +7
–0.5 to +7
V
OEA, OEB
Dxx
Oxx
3–StateOutputEnableInputs(ActiveLOW)
Inputs
Outputs
with Respect to GND
Terminal Voltage
(3)
VTERM
–0.5 to VCC –0.5 to VCC
V
with Respect to GND
Operating Temperature
Temperature under BIAS
Storage Temperature
Power Dissipation
TA
0 to +70
–55 to +125
° C
° C
° C
W
TBIAS
TSTG
PT
–55 to +125 –65 to +135
–55 to +125 –65 to +150
0.5
0.5
FUNCTIONTABLE(1)
IOUT
DC Output Current
120
120
mA
Inputs
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.
OEA
L
OEB
L
D
L
Outputs
L
H
Z
L
L
H
X
H
H
2. Input and Vcc terminals only.
NOTE:
3. Output and I/O terminals only.
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High Impedance
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol
Parameter(1)
Input Capacitance
Output Capacitance
Conditions
Typ.
Max. Unit
CIN
VIN = 0V
6
10
12
pF
pF
COUT
VOUT = 0V
8
NOTE:
1. This parameter is measured at characterization but not tested.
2
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIAL TEMPERATURERANGES
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditions ApplyUnless OtherwiseSpecified: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
VIH
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
Min.
2
Typ.(2)
—
Max.
—
0.8
5
Unit
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
—
—
—
—
—
—
V
IIH
Input HIGH Current
VI = VCC
—
(4)
VCC = Max.
VI = 2.7V
VI = 0.5V
VI = GND
—
5
µA
µA
(4)
IIL
Input LOW Current
—
–5
—
–5
10
IOZH
IOZL
VO = VCC
—
—
—
—
—
—
—
(4)
Off State (High Impedance)
Output Current
VCC = Max.
VO = 2.7V
VO = 0.5V
VO = GND
10
(4)
—
—
–10
–10
VIK
IOS
Clamp Diode Voltage
Short Circuit Current
OutputHIGHVoltage
VCC = Min., IIN = –18mA
–0.7
–1.2
V
(3)
VCC = Max., VO = GND
–60
–120
—
—
mA
VOH
VCC = 3V, VIN = VLC or VHC, IOH = –32μA
VHC
VHC
2.4
2.4
—
VCC
VCC
4.3
VCC = Min
IOH = –300μA
—
V
V
VIN = VIH or VIL
IOH = –12mA MIL
—
IOH = –15mA COM'L
4.3
—
VOL
Output LOWVoltage
VCC = 3V, VIN = VLC or VHC, IOL = 300μA
GND
GND
0.3
VLC
(4)
VCC = Min
IOL = 300μA
—
VLC
VIN = VIH or VIL
IOL = 48mA MIL
—
0.55
0.55
IOL = 64mA COM'L
—
0.3
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 and maximum loading.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not ttested.
3
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIAL TEMPERATURERANGES
POWERSUPPLYCHARACTERISTICS
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
ΔICC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC = Max.
VIN = 3.4V
—
—
0.5
2
mA
(3)
ICCD
Dynamic Power Supply
Current(4)
VCC = Max.
Outputs Open
OEA = OEB = GND
VIN ≥ VHC
VIN ≤ VLC
0.15
0.25
mA/
MHz
One Input Toggling
50% Duty Cycle
IC
Total Power Supply Current(6)
VCC = Max.
Outputs Open
fI = 10MHz
VIN ≥ VHC
VIN ≤ VLC
(FCT)
—
—
1.7
2
4
5
mA
50% Duty Cycle
OEA = OEB = GND
VIN = 3.4V
VIN = GND
One Bit Toggling
(5)
VCC = Max.
Outputs Open
fI = 2.5MHz
VIN ≥ VHC
VIN ≤ VLC
(FCT)
—
—
3.2
5.2
6.5
(5)
50% Duty Cycle
OEA = OEB = GND
VIN = 3.4V
VIN = GND
14.5
Eight Bits Toggling
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 ΔICC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ΔICC DHNT + ICCD (fCP/2 + fiNi)
ICC = Quiescent Current
ΔICC = 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 = Input Frequency
Ni = Number of Inputs at fi
All currents are in milliamps and all frequencies are in megahertz.
SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE(1,2)
54FCT244
54/74FCT244A
74FCT244C
Com'l.
Mil.
Com'l.
Mil.
Symbol
tPLH
Parameter
PropagationDelay
Dx to Ox
Condition
CL = 50pF
RL = 500Ω
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max. Unit
1.5
1.5
1.5
7
1.5
1.5
1.5
4.8
1.5
5.1
1.5
4.1
5.8
5.2
ns
ns
ns
tPHL
tPZH
OutputEnableTime
8.5
7.5
6.2
5.6
1.5
1.5
6.5
5.9
1.5
1.5
tPZL
tPHZ
OutputDisableTime
tPLZ
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
4
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIAL TEMPERATURERANGES
TESTCIRCUITSANDWAVEFORMS
VCC
7.0V
SWITCHPOSITION
500Ω
Test
Switch
Closed
Open
VOUT
VIN
Open Drain
Disable Low
Enable Low
Pulse
Generator
D.U.T
.
50pF
All Other Tests
500Ω
T
R
L
C
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Octal Link
Test Circuits for All Outputs
3V
DATA
1.5V
INPUT
0V
LOW-HIGH-LOW
PULSE
tH
tSU
1.5V
1.5V
3V
1.5V
0V
TIMING
INPUT
tW
ASYNCHRONOUS CONTROL
tREM
PRESET
3V
1.5V
0V
CLEAR
HIGH-LOW-HIGH
PULSE
ETC.
SYNCHRONOUS CONTROL
PRESET
3V
1.5V
0V
CLEAR
tSU
tH
CLOCK ENABLE
ETC.
Pulse Width
Octal Link
Octal Link
Set-Up, Hold, and Release Times
ENABLE
tPZL
DISABLE
tPLZ
3V
1.5V
0V
3V
SAME PHASE
CONTROL
INPUT
1.5V
0V
INPUT TRANSITION
tPLH
tPLH
tPHL
tPHL
VOH
1.5V
VOL
OUTPUT
3.5V
1.5V
3.5V
OUTPUT
NORMALLY
LOW
SWITCH
CLOSED
0.3V
VOL
VOH
3V
1.5V
0V
tPZH
tPHZ
OPPOSITE PHASE
INPUT TRANSITION
OUTPUT
NORMALLY
HIGH
0.3V
SWITCH
OPEN
1.5V
0V
0V
Octal Link
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; ZO ≤ 50Ω; tF ≤ 2.5ns; tR ≤ 2.5ns.
5
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDCOMMERCIAL TEMPERATURERANGES
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
SOIC - Green
SO
SOG
Military Options
CERDIP
Leadless Chip Carrier
D
L
Octal Buffer/Line Driver
244
244A
244C
54
74
– 55°C to +125°C
0°C to +70°C
CORPORATE HEADQUARTERS
6024 Silver Creek Valley Road
San Jose, CA 95138
for SALES:
800-345-7015 or 408-284-8200
fax: 408-284-2775
for Tech Support:
logichelp@idt.com
www.idt.com
6
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