IDT54/74FCT244/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FAST CMOS OCTAL
BUFFER/LINE DRIVER
FEATURES:
•
•
•
•
•
•
•
•
IDT54/74FCT244/A/C
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
– Military: CERDIP, LCC
The IDT octal buffer/line drivers are built using an advanced dual metal
CMOS technology. The FCT244 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
OEA
1
19
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
JUNE 2002
1
© 2002 Integrated Device Technology, Inc.
DSC-5420/2
IDT54/74FCT244/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
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
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
VI = VCC
—
—
5
VI = 2.7V
VCC = Max.
—
—
5(4)
VI = 0.5V
IOZH
—
—
—
–5
VO = VCC
VO = 2.7V
VO = 0.5V
VO = GND
Input LOW Current
—
VI = GND
IIL
—
—
—
—
–0.7
10
10(4)
–10(4)
–10
–1.2
VCC = Max.
IOZL
Off State (High Impedance)
Output Current
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
—
—
—
—
—
IOS
Short Circuit Current
VCC = Max., VO = GND(3)
–60
–120
—
VOH
Output HIGH Voltage
VCC = 3V, VIN = VLC or VHC, IOH = –32µA
VCC = Min
IOH = –300µA
VIN = VIH or VIL
IOH = –12mA MIL
IOH = –15mA COM'L
VCC = 3V, VIN = VLC or VHC, IOL = 300µA
VCC = Min
IOL = 300µA
VIN = VIH or VIL
IOL = 48mA MIL
IOL = 64mA COM'L
VHC
VHC
2.4
2.4
—
—
—
—
VCC
VCC
4.3
4.3
GND
GND
0.3
0.3
—
—
—
—
VLC
VLC(4)
0.55
0.55
VOL
Output LOW Voltage
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
µA
–5(4)
µA
V
mA
V
V
