IDT74FCT244PYB [IDT]
3.3V CMOS OCTAL BUFFER/LINE DRIVER; 3.3V CMOS八路缓冲器/线路驱动器
| 型号： | IDT74FCT244PYB |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | 3.3V CMOS OCTAL BUFFER/LINE DRIVER |
| 文件： | 总6页 (文件大小：104K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IDT54/74FCT3244/A
3.3V CMOS OCTAL
BUFFER/LINE DRIVER
Integrated Device Technology, Inc.
FEATURES:
DESCRIPTION:
• 0.5 MICRON CMOS Technology
The FCT3244/A octal buffer/line drivers are built using
advanced dual metal CMOS technology. These high-speed,
low-power buffers are designed to be used as memory data
and address drivers, clock drivers, and bus-oriented transmit-
ter/receivers. The three-state controls are designed to oper-
ate these devices in a dual-nibble or single-byte mode. All
inputs are designed with hysteresis for improved noise mar-
gin.
• ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
• 25 mil Center SSOP and QSOP Packages
• Extended commercial range of -40°C to +85°C
• VCC = 3.3V ±0.3V, Normal Range or
VCC = 2.7V to 3.6V, Extended Range
• CMOS power levels (0.4µW typ. static)
• Rail-to-Rail output swing for increased noise margin
• Military product compliant to MIL-STD-883, Class B
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATIONS
1
2
1OE
1A1
2Y4
1A2
2Y3
1A3
20
19
18
17
16
15
14
13
12
11
Vcc
1
OE
2OE
1Y1
2A4
3
1
Y
1
1
A1
4
P20-1
D20-1
SO20-2
SO20-7
&
2
1Y
5
1
A2
1Y
2
2A3
6
1Y
3
7
1
A3
2Y2
1A4
1Y3
2A2
SO20-8
8
1
A4
1Y
4
2Y1
1Y4
2A1
9
GND
10
DIP/SOIC/SSOP/QSOP
TOP VIEW
2OE
2Y1
2A1
2779 drw 02
2A2
2Y2
2A3
2Y3
2Y4
2A4
2779 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DECEMBER 1995
1996 Integrated Device Technology, Inc.
8.11
DSC-2779/4
1
IDT54/74FCT3244/A
3.3V CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
FUNCTION TABLE(1)
Pin Names
xOE
Description
Inputs
Outputs
xYx
3–State Output Enable Inputs (Active LOW)
Data Inputs
x
xAx
L
OE
L
xAx
xYx
L
H
Z
3-State Outputs
L
H
2779 tbl 01
H
X
2779 tbl 02
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High Impedance
ABSOLUTE MAXIMUM RATINGS(1)
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol
Parameter(1)
Conditions
IN = 0V
Typ. Max. Unit
Symbol
Rating
Commercial
Military
Unit
(2)
CIN
Input
Capacitance
Output
V
3.5
4.0
6.0
pF
VTERM
Terminal Voltage
with Respect to
GND
–0.5 to +4.6 –0.5 to +4.6
V
COUT
V
OUT = 0V
8.0
pF
(3)
VTERM
Terminal Voltage
with Respect to
GND
–0.5 to +7.0 –0.5 to +7.0
V
V
Capacitance
NOTE:
1. This parameter is measured at characterization but not tested.
2779 lnk 04
(4)
VTERM
Terminal Voltage
with Respect to
GND
–0.5 to
VCC + 0.5
–0.5 to
VCC + 0.5
TA
Operating
–40 to +85 –55 to +125 °C
–55 to +125 –65 to +135 °C
–55 to +125 –65 to +150 °C
Temperature
Temperature
Under Bias
Storage
TBIAS
TSTG
Temperature
Power Dissipation
PT
1.0
1.0
W
IOUT
DC Output
Current
–60 to +60
–60 to +60 mA
2779 lnk 03
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-
INGS may cause permanent damage to the device. This is a stress rating
onlyandfunctionaloperationofthedeviceattheseoranyotherconditions
above those indicated in the operational sections of this specification is
not implied. Exposure to absolute maximum rating conditions for ex-
tended periods may affect reliability.
2. Vcc terminals.
3. Input terminals.
4. Output and I/O terminals.
8.11
2
IDT54/74FCT3244/A
3.3V CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: TA = –40°C to +85°C, VCC = 2.7V to 3.6V; Military: TA = –55°C to +125°C, VCC = 2.7V to 3.6V
Symbol
Parameter
Test Conditions(1)
Min.
Typ.(2)
Max. Unit
VIH
Input HIGH Level (Input pins)
Guaranteed Logic HIGH Level
2.0
—
5.5
VCC+0.5
0.8
V
Input HIGH Level (I/O pins)
Input LOW Level
2.0
—
—
VIL
II H
Guaranteed Logic LOW Level
–0.5
V
(Input and I/O pins)
Input HIGH Current (Input pins)(6)
Input HIGH Current (I/O pins)(6)
Input LOW Current (Input pins)(6)
Input LOW Current (I/O pins)(6)
High Impedance Output Current
(3-State Output pins)(6)
VCC = Max.
VCC = Max.
VI = 5.5V
VI = VCC
—
—
—
—
±1
±1
µA
II L
VI = GND
VI = GND
VO = VCC
VO = GND
—
—
±1
—
—
±1
IOZH
IOZL
VIK
—
—
±1
µA
—
—
±1
Clamp Diode Voltage
VCC = Min., IIN = –18mA
—
–0.7
–60
90
—
–1.2
–110
200
—
V
IODH
IODL
VOH
Output HIGH Current
VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3)
VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3)
–36
50
mA
mA
V
Output LOW Current
Output HIGH Voltage
VCC = Min.
IOH = –0.1mA
IOH = –3mA
VCC–0.2
2.4
VIN = VIH or VIL
3.0
3.0
—
VCC = 3.0V
VIN = VIH or VIL
VCC = Min.
IOH = –6mA MIL.
IOH = –8mA COM'L.
IOL = 0.1mA
2.4(5)
—
VOL
Output LOW Voltage
—
—
—
—
—
0.2
0.3
0.3
0.2
0.4
V
VIN = VIH or VIL
IOL = 16mA
IOL = 24mA
IOL = 24mA
0.55
0.50
VCC = 3.0V
VIN = VIH or VIL
IOS
VH
Short Circuit Current(4)
Input Hysteresis
VCC = Max., VO = GND(3)
–60
—
–135
150
0.1
–240
—
mA
mV
µA
—
ICCL
ICCH
ICCZ
Quiescent Power Supply Current
VCC = Max.,
VIN = GND or VCC
COM'L.
MIL.
—
10
—
0.1
100
2779 lnk 05
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 = 3.3V, +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. This parameter is guaranteed but not tested.
5. VOH = VCC –0.6V at rated current.
6. The test limits for this parameter is ± 5µA at TA = –55°C.
8.11
3
IDT54/74FCT3244/A
3.3V CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
VIN = VCC – 0.6V(3)
Min. Typ.(2) Max.
Unit
∆ICC
Quiescent Power Supply Current
VCC = Max.
—
—
2.0
60
30
85
µA
ICCD
Dynamic Power Supply
Current(4)
VCC = Max.
VIN = VCC
VIN = GND
µA/
MHz
Outputs Open
50% Duty Cycle
xOE = GND
One Input Toggling
IC
Total Power Supply Current(6)
VCC = Max.
Outputs Open
fi = 10MHz
VIN = VCC
—
—
0.6
0.6
0.9
0.9
mA
VIN = GND
50% Duty Cycle
xOE = GND
VIN = VCC –0.6V
VIN = GND
One Bit Toggling
VCC = Max.
Outputs Open
fi = 2.5MHz
VIN = VCC
VIN = GND
—
—
1.2
1.2
1.7(5)
1.8(5)
50% Duty Cycle
xOE = GND
VIN = VCC –0.6V
VIN = GND
Eight Bits Toggling
2779 tbl 06
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 = 3.3V, +25°C ambient.
3. Per TTL driven input; 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 (fCPNCP/2 + fiNi)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
∆ICC = Power Supply Current for a TTL High Input
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)
NCP = Number of Clock Inputs at fCP
fi = Input Frequency
Ni = Number of Inputs at fi
SWITCHING CHARACTERISTICS OVER OPERATING RANGE(3)
FCT3244
FCT3244A
Com'l.
Min.(2)
Max.
Mil.
Com'l.
Min.(2)
Max.
Mil.
Symbol
tPLH
Parameter
Propagation Delay
xAx to xYx
Condition(1)
CL = 50pF
RL = 500Ω
Min.(2)
Max.
Min.(2)
Max.
Unit
1.5
1.5
1.5
6.5
8.0
7.0
1.5
7.0
1.5
1.5
1.5
4.8
6.2
5.6
1.5
5.1
ns
tPHL
tPZH
Output Enable Time
1.5
1.5
8.5
7.5
1.5
1.5
6.5
5.9
ns
tPZL
tPHZ
Output Disable Time
ns
tPLZ
2779 tbl 07
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. PropagationDelaysandEnable/DisabletimesarewithVCC =3.3V±0.3V, NormalRange. ForVCC =2.7Vto3.6V, ExtendedRange, allPropagationDelays
and Enable/Disable times should be degraded by 20%.
8.11
4
IDT54/74FCT3244/A
3.3V CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS
SWITCH POSITION
6V
Test
Switch
←
Open Drain
Disable Low
Enable Low
Disable High
Enable High
All Other tests
V
CC
Open
GND
6V
500Ω
500Ω
V
OUT
GND
V IN
Pulse
Generator
D.U.T.
Open
50pF
2779 lnk 08
DEFINITIONS:
CL= Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
R T
C
L
Generator.
2779 drw 03
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
3V
DATA
1.5V
INPUT
0V
LOW-HIGH-LOW
PULSE
tH
tSU
1.5V
1.5V
3V
1.5V
0V
TIMING
INPUT
ASYNCHRONOUS CONTROL
tW
tREM
PRESET
CLEAR
ETC.
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
SYNCHRONOUS CONTROL
PRESET
3V
1.5V
0V
CLEAR
tSU
tH
CLOCK ENABLE
ETC.
2779 drw 05
2779 drw 04
PROPAGATION DELAY
ENABLE AND DISABLE TIMES
ENABLE
DISABLE
3V
1.5V
0V
3V
SAME PHASE
CONTROL
INPUT
1.5V
0V
INPUT TRANSITION
tPLH
tPHL
tPHL
tPZL
tPLZ
VOH
1.5V
VOL
OUTPUT
3V
1.5V
3V
VOL
VOH
OUTPUT
NORMALLY
LOW
SWITCH
6V
tPLH
0.3V
0.3V
3V
1.5V
0V
tPZH
tPHZ
OPPOSITE PHASE
INPUT TRANSITION
OUTPUT
NORMALLY
HIGH
SWITCH
GND
1.5V
0V
2779 drw 06
0V
2779 drw 07
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.
3. If VCC is below 3V, input voltage swings should be adjusted not to exceed
VCC.
8.11
5
IDT54/74FCT3244/A
3.3V CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT
XX
FCT
X
XX
X
X
Temp. Range
Family
Device Type
Package
Process
Blank
B
Commercial
MIL-STD-883, Class B
P
Plastic DIP (P20-1)
D
CERDIP (D20-1)
SO
PY
Q
Small Outline IC (SO20-2)
Shrink Small Outline Package (SO20-7)
Quarter-size Small Outline Package (SO20-8)
244
Non-Inverting Octal Buffer/Line Driver
244A
3
3.3 Volt
54
74
–55°C to +125°C
–40°C to +85°C
2779 drw 08
8.11
6
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