IDT IDT74FCT244AL Fast cmos octal buffer/line driver Datasheet

IDT54/74FCT244/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FAST CMOS OCTAL
BUFFER/LINE DRIVER
IDT54/74FCT244/A/C
FEATURES:
DESCRIPTION:
−
−
−
−
−
−
−
−
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.
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:
• Commercial: SOIC
• Military: CERDIP, LCC, CERPACK
FUNCTIONAL BLOCK DIAGRAM
OE A
1
19
OE B
DA 0
OB 0
DA 1
OB 1
DA 2
OB 2
DA 3
OB 3
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
OA 0
DB 0
OA 1
DB 1
OA 2
DB 2
OA 3
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DB 3
JUNE 2000
1
c
1999 Integrated Device Technology, Inc.
DSC-5420/-
IDT54/74FCT244/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
3
18
OA 0
17
DB0
DA1
16
OA 1
OB 1
5
15
DB1
DA2
6
14
OA 2
OB 2
7
7
DA3
8
DA 3
8
13
DB2
OB3
9
12
OA 3
10
11
DB3
4
OB1
5
DA 2
6
OB2
GND
D20-1
SO20-2
E20-1
3
2
9
Commercial
–0.5 to +7
0 to +70
–55 to +125
°C
–55 to +125
–65 to +135
°C
TSTG
Temperature Under
Bias
Storage Temperature
–55 to +125
–65 to +150
°C
PT
Power Dissipation
0.5
0.5
W
IOUT
DC Output Current
120
120
mA
TA
TBIAS
11
12
13
OA 0
17
DB0
16
OA 1
15
DB1
14
OA 2
FUNCTION TABLE (1)
Rating
Terminal Voltage
with Respect to GND
Terminal Voltage
with Respect to GND
Operating Temperature
–0.5 to VCC
10
18
LCC
TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
VTERM(3)
19
L20-2
DIP/ SOIC/ CERPACK
TOP VIEW
Symbol
VTERM(2)
20
1
OB 3
DA 1
4
OE B
OB0
INDEX
DB 2
OE B
V CC
19
OA 3
DA 0
2
OE A
V CC
DB 3
20
DA 0
1
GND
OE A
OB 0
PIN CONFIGURATION
Military
–0.5 to +7
–0.5 to VCC
Unit
V
V
OEA
Inputs
OEB
D
Outputs
L
L
L
L
L
L
H
H
H
H
X
Z
NOTE:
1. H = High Voltage Level
X = Don't Care
L = Low Voltage Level
Z = HIGH Impedance
PIN DESCRIPTION
8-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. No
terminal voltage may exceed VCC by +.5V unless otherwise noted.
Pin Names
OEA, OEB
Description
3–State Output Enable Inputs (Active LOW)
Dxx
Inputs
Oxx
Outputs
2. Input and VCC terminals only.
3. Outputs and I/O terminals only.
CAPACITANCE (TA = +25OC, f = 1.0MHz)
Symbol
CIN
Parameter(1)
Input Capacitance
Conditions
VIN = 0V
Typ.
6
Max.
10
Unit
pF
COUT
Output
Capacitance
VOUT = 0V
8
12
pF
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
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
VIH
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
VIL
Input LOW Level
Guaranteed Logic LOW Level
II H
Input HIGH Current
VCC = Max.
II L
IOZH
VI = VCC
Input LOW Current
Off State (High Impedance)
VCC = Max.
Output Current
IOZL
Min.
2
Typ.(2)
—
Max.
—
Unit
V
—
—
0.8
V
—
—
5
µA
VI = 2.7V
—
—
5(4)
VI = 0.5V
—
—
–5(4)
VI = GND
—
—
–5
VO = VCC
—
—
10
VO = 2.7V
—
—
10(4)
VO = 0.5V
—
—
–10(4)
VO = GND
—
—
–10
µA
VIK
Clamp Diode Voltage
VCC = Min., IN = –18mA
—
–0.7
–1.2
V
IOS
Short Circuit Current
VCC = Max.(3), VO = GND
–60
–120
—
mA
VOH
Output HIGH Voltage
VCC = 3V, VIN = VLC or VHC, IOH = –32µ A
VHC
VCC
—
V
VCC = Min.
IOH = –300µ A
VHC
VCC
—
VIN = VIH or VIL
IOH = –12mA MIL.
2.4
4.3
—
IOH = –15mA COM'L.
2.4
4.3
—
VCC = 3V, VIN = VLC or VHC, IOL = 300µ A
—
GND
VLC
VCC = Min.
IOL = 300µ A
—
GND
VLC(4)
VIN = VIH or VIL
IOL = 48mA MIL.
—
0.3
0.55
IOL = 64mA COM'L.
—
0.3
0.55
VOL
Output LOW Voltage
V
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
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
VLC = 0.2V; VHC = VCC - 0.2V
Symbol
ICC
Parameter
Quiescent Power Supply Current
∆ICC
ICCD
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current(4)
IC
Total Power Supply Current (6)
Test Conditions(1)
VCC = Max.
VIN ≥ VHC; VIN ≤ VLC
VCC = Max.
VIN = 3.4V(3)
VIN ≥ VHC
VCC = Max.
VIN ≤ VLC
Outputs Open
OEA = OEB = GND
One Input Toggling
50% Duty Cycle
VIN ≥ VHC
VCC = Max.
VIN ≤ VLC
Outputs Open
(FCT)
fi = 10MHz
50% Duty Cycle
VIN = 3.4V
OEA = OEB = GND
One Bit Toggling
VIN = GND
VIN ≥ VHC
VCC = Max.
VIN ≤ VLC
Outputs Open
(FCT)
fi = 2.5MHz
50% Duty Cycle
VIN = 3.4V
OEA = OEB = GND
Eight Bits Toggling
VIN = GND
Min.
—
Typ.(2)
0.2
Max.
1.5
Unit
mA
—
0.5
2
mA
—
0.15
0.25
mA/
MHz
—
1.7
4
mA
—
2
5
—
3.2
6.5(5)
—
5.2
14.5(5)
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 (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 = Input Frequency
Ni = Number of Inputs at fi
All currents are in milliamps and all frequencies are in megahertz.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
54/74FCT244
Com'l.
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
DN to ON
Condition
CL = 50pF
(1,2)
54/74FCT244A
Mil.
Com'l.
54/74FCT244C
Mil.
Com'l.
Mil.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
1.5
6.5
1.5
7
1.5
4.8
1.5
5.1
1.5
4.1
1.5
4.6
ns
Output Enable Time
1.5
8
1.5
8.5
1.5
6.2
1.5
6.5
1.5
5.8
1.5
6.5
ns
Output Disable Time
1.5
7
1.5
7.5
1.5
5.6
1.5
5.9
1.5
5.2
1.5
5.7
ns
RL = 500Ω
NOTES:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
4
IDT54/74FCT244/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
SWITCH POSITION
TEST CIRCUITS FOR ALL OUTPUTS
V CC
Test
7.0V
Switch
Open Drain
500 Ω
Disable Low
V OUT
V IN
Pulse
Generator
D.U.T.
All Other Tests
50pF
R
Closed
Enable Low
T
C
Open
8-link
500 Ω
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
L
O ctal lin k
PULSE WIDTH
SET-UP, HOLD, AND RELEASE TIMES
3V
1.5V
0V
3V
1.5V
0V
DATA
INPUT
tH
t SU
TIM ING
INPUT
ASYNCHRONOUS C ONTROL
PRES ET
CLEAR
ETC.
SYNCHRO NOUS CONTRO L
PRES ET
CLEAR
CLOCK ENABLE
ETC.
t REM
t SU
LO W -HIGH-LOW
PULSE
1.5V
tW
3V
1.5V
0V
HIGH-LOW -HIGH
PULSE
1.5V
3V
1.5V
0V
tH
O ctal lin k
O ctal lin k
PROPAGATION DELAY
ENABLE AND DISABLE TIMES
ENAB LE
SAM E PHASE
INPUT TRANSITION
t PLH
t PH L
OUTPUT
t PLH
OPPOSITE P HASE
INPUT TRANSITION
t PH L
3V
1.5V
0V
DISA BLE
3V
CO NTROL
INPUT
1.5V
t PZL
V OH
1.5V
V OL
OUTPUT
NO RM A LLY
LO W
3V
1.5V
0V
SW ITCH
CLOSE D
O ctal lin k
SW ITCH
OPEN
3.5V
3.5V
1.5V
0.3V
t PZH
OUTPUT
NO RM A LLY
HIGH
0V
t PLZ
V OL
t PHZ
0.3V
V OH
1.5V
0V
0V
O ctal lin k
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
FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT
XX
Temp. Range
FCT
XXXX
XX
X
Device Type
Package
Process
Blank
B
Commercial
MIL-STD-883, Class B
SO
Commercial Options
Small Outline IC (SO20-2)
D
E
L
Military Options
CERDIP (D20-1)
CERPACK (E20-1)
Leadless Chip Carrier (L20-2)
244
244A
244C
Octal Buffer/Line Driver
54
74
– 55°C to +125°C
0°C to +70°C
CORPORATE HEADQUARTERS
2975 Stender Way
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
Similar pages