IDT IDT74FCT827ADB High-performance cmos buffer Datasheet


IDT54/74FCT827A
IDT54/74FCT827B
IDT54/74FCT827C
HIGH-PERFORMANCE
CMOS BUFFERS
Integrated Device Technology, Inc.
FEATURES:
DESCRIPTION:
• Faster than AMD’s Am29827 series
• Equivalent to AMD’s Am29827 bipolar buffers in pinout/
function, speed and output drive over full temperature
and voltage supply extremes
• IDT54/74FCT827A equivalent to FAST
• IDT54/74FCT827B 35% faster than FAST
• IDT54/74FCT827C 45% faster than FAST
• IOL = 48mA (commercial), and 32mA (military)
• Clamp diodes on all inputs for ringing suppression
• CMOS power levels (1mW typ. static)
• TTL input and output level compatible
• CMOS output level compatible
• Substantially lower input current levels than AMD’s
bipolar Am29800 series (5µA max.)
• Product available in Radiation Tolerant and Radiation
Enhanced versions
• Military product compliant to MIL-STD-883, Class B
The IDT54/74FCT800 series is built using an advanced
dual metal CMOS technology.
The IDT54/74FCT827A/B/C 10-bit bus drivers provide
high-performance bus interface buffering for wide data/ address paths or buses carrying parity. The 10-bit buffers have
NAND-ed output enables for maximum control flexibility.
All of the IDT54/74FCT800 high-performance interface
family are designed for high-capacitance load drive capability,
while providing low-capacitance bus loading at both inputs
and outputs. All inputs have clamp diodes and all outputs are
designed for low-capacitance bus loading in high-impedance
state.
FUNCTIONAL BLOCK DIAGRAM
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
OE1 OE2
2609 drw 01
PRODUCT SELECTOR GUIDE
10-Bit Buffer
Non-inverting
IDT54/74FCT827A/B/C
2609 tbl 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a trademark of National Semiconductor Co.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
1992 Integrated Device Technology, Inc.
7.20
MAY 1992
DSC-4612/2
1
IDT54/74FCT827A/B/C
HIGH-PERFORMANCE CMOS BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
24
23
22
21
20
19
18
17
16
15
14
13
INDEX
D2
D3
D4
NC
D5
D6
D7
1 28 27 26
5
25
6
24
7
23
8
22
L28-1
9
21
10
20
11
19
1213 14 15 16 17 18
2609 drw 02
OEI
I
DI
I
Description
When both are LOW, the outputs are
enabled. When either one or both are
HIGH, the outputs are High Z.
10-bit data input.
YI
O
10-bit data output.
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Commercial
VTERM(2) Terminal Voltage
–0.5 to +7.0
with Respect to
GND
VTERM(3) Terminal Voltage
–0.5 to VCC
with Respect to
GND
TA
Operating
0 to +70
Temperature
TBIAS
Temperature
–55 to +125
Under Bias
TSTG
Storage
–55 to +125
Temperature
PT
Power Dissipation
0.5
DC Output
Current
OE1
OE2
2609 drw 04
2609 drw 03
Inputs
2609 tbl 02
IOUT
Y0-9
FUNCTION TABLE(1)
PIN DESCRIPTION
I/O
Y2
Y3
Y4
NC
Y5
Y6
Y7
10
LCC
TOP VIEW
DIP/CERPACK/SOIC
TOP VIEW
Name
10
D0-9
4 3 2
D8
D9
GND
NC
OE2
Y9
Y8
VCC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
OE2
D1
D0
OE1
NC
VCC
Y0
Y1
1
2
3
4 P24-1
5 D24-1
6 E24-1
&
7
8 SO24-2
9
10
11
12
OE1
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
GND
LOGIC SYMBOL
120
Output
OE1
OE2
DI
YI
Function
L
L
H
X
L
L
X
H
L
H
X
X
L
H
Z
Z
Transparent
Three-State
NOTE:
1. H = HIGH, L = LOW, X = Don’t Care, Z = High Impedance
2609 tbl 03
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Military
–0.5 to +7.0
Unit
V
–0.5 to VCC
V
–55 to +125
°C
–65 to +135
°C
–65 to +150
°C
0.5
W
120
mA
Symbol
Parameter(1)
CIN
Input
Capacitance
COUT
Output
Capacitance
Conditions
VIN = 0V
Typ.
6
Max.
10
Unit
pF
VOUT = 0V
8
12
pF
NOTE:
2609 tbl 05
1. This parameter is measured at characterization but not tested.
NOTES:
2609 tbl 04
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.
2. Input and VCC terminals only.
3. Outputs and I/O terminals only.
7.20
2
IDT54/74FCT827A/B/C
HIGH-PERFORMANCE CMOS BUFFERS
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%
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
VIL
Input LOW Level
II H
Input HIGH Current
Symbol
VIH
II L
IOZH
Min.
2.0
Typ.(2)
—
Max.
—
Unit
V
Guaranteed Logic LOW Level
—
—
0.8
V
VCC = Max.
—
—
5
µA
VI = VCC
Input LOW Current
Off State (High Impedance)
VCC = Max.
Output Current
IOZL
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
VIK
Clamp Diode Voltage
VCC = Min., IN = –18mA
Max.(3) ,
µA
—
—
–10
—
–0.7
–1.2
V
IOS
Short Circuit Current
VCC =
VO = GND
–75
–120
—
mA
VOH
Output HIGH Voltage
VCC = 3V, VIN = VLC or VHC, IOH = –32µA
VHC
VCC
—
V
VOL
Output LOW Voltage
VCC = Min.
IOH = –300µA
VHC
VCC
—
VIN = VIH or VIL
IOH = –15mA MIL.
2.4
4.3
—
IOH = –24mA COM'L.
2.4
4.3
—
VCC = 3V, VIN = VLC or VHC, IOL = 300µA
—
GND
VLC
VCC = Min.
IOL = 300µA
—
GND
VLC(4)
VIN = VIH or VIL
IOL = 32mA MIL.
—
0.3
0.5
IOL = 48mA COM'L.
—
0.3
0.5
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 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.
7.20
V
2609 tbl 06
3
IDT54/74FCT827A/B/C
HIGH-PERFORMANCE CMOS BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS VLC = 0.2V; VHC = VCC – 0.2V
Symbol
ICC
Parameter
Quiescent Power Supply Current
ICCD
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current (4)
IC
Total Power Supply Current (6)
∆ICC
Test Conditions(1)
VCC = Max.
VIN ≥ VHC; V IN ≤ V LC
VCC = Max.
VIN = 3.4V(3)
VCC = Max.
Outputs Open
OE1 = OE2 = GND
One Input Toggling
50% Duty Cycle
VCC = Max.
Outputs Open
fi = 10MHz
50% Duty Cycle
OE1 = OE2 = GND
One Bit Toggling
VCC = Max.
Outputs Open
fi = 2.5MHz
50% Duty Cycle
OE1 = OE2 = GND
Eight Bits Toggling
Min.
Typ.(2)
Max.
Unit
—
0.2
1.5
mA
—
0.5
2.0
mA
VIN ≥ VHC
VIN ≤ VLC
—
0.15
0.25
mA/
MHz
VIN ≥ VHC
VIN ≤ VLC
(FCT)
VIN = 3.4V
VIN = GND
—
1.7
4.0
mA
—
2.0
5.0
—
3.2
6.5 (5)
—
5.2
14.5 (5)
VIN ≥ VHC
VIN ≤ VLC
(FCT)
VIN = 3.4V
VIN = GND
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.
7.20
2609 tbl 07
4
IDT54/74FCT827A/B/C
HIGH-PERFORMANCE CMOS BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Parameter
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Description
Propagation Delay
DI to YI
Conditions (1)
CL = 50pF
RL = 500Ω
CL = 300pF(3)
Output Enable Time
OEI to YI
RL = 500Ω
CL = 50pF
RL = 500Ω
CL = 300pF(3)
Output Disable Time
OEI to YI
RL = 500Ω
CL = 5pF(3)
RL = 500Ω
CL = 50pF
RL = 500Ω
IDT54/74FCT827A
IDT54/74FCT827B
IDT54/74FCT827C
Com'l.
Com'l.
Com'l.
(2)
Min.
Mil.
(2)
(2)
Mil.
(2)
(2)
Max. Min.
Max. Min.
Max. Min.
Max. Min.
8.0
9.0
5.0
6.5
1.5
1.5
1.5
1.5
1.5
Mil.
Max. Min.
4.4
(2)
1.5
Max.
Unit
5.0
ns
1.5 15.0
1.5 17.0
1.5 13.0
1.5 14.0
1.5 10.0
1.5 11.0
1.5 12.0
1.5 13.0
1.5
1.5
1.5
1.5
1.5 23.0
1.5 25.0
1.5 15.0
1.5 16.0
1.5 14.0
1.5 15.0
1.5
1.5
9.0
1.5
6.0
1.5
7.0
1.5
5.7
1.5
6.7
1.5 10.0
1.5
7.0
1.5
8.0
1.5
6.0
1.5
7.0
9.0
1.5 10.0
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. These parameters are guaranteed but not tested.
8.0
9.0
7.0
8.0
ns
ns
2609 tbl 08
7.20
5
IDT54/74FCT827A/B/C
HIGH-PERFORMANCE CMOS BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
SWITCH POSITION
TEST CIRCUITS FOR ALL OUTPUTS
VCC
7.0V
500Ω
V OUT
VIN
Pulse
Generator
D.U.T.
50pF
RT
500Ω
SET-UP, HOLD AND RELEASE TIMES
Closed
All Other Tests
Open
3V
1.5V
0V
tH
TIMING
INPUT
3V
1.5V
0V
LOW-HIGH-LOW
PULSE
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
1.5V
tW
t REM
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
Open Drain
Disable Low
Enable Low
PULSE WIDTH
DATA
INPUT
ASYNCHRONOUS CONTROL
Switch
DEFINITIONS:
2609 tbl 09
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
CL
t SU
Test
t SU
1.5V
3V
1.5V
0V
tH
PROPAGATION DELAY
ENABLE AND DISABLE TIMES
ENABLE
DISABLE
3V
3V
1.5V
SAME PHASE
INPUT TRANSITION
t PLH
t PHL
CONTROL
INPUT
t PZL
0V
OUTPUT
NORMALLY SWITCH
LOW CLOSED
t PZH
VOH
1.5V
OUTPUT
VOL
t PLH
t PHL
OUTPUT SWITCH
NORMALLY OPEN
HIGH
3V
OPPOSITE PHASE
INPUT TRANSITION
1.5V
1.5V
0V
t PLZ
3.5V
3.5V
1.5V
0.3V
V OL
t PHZ
0.3V
1.5V
0V
V OH
0V
0V
NOTES
2609 drw 11
1. Diagram shown for input Control Enable-LOW and input Control
Disable-HIGH.
2. Pulse Generator for All Pulses: Rate ≤ 1.0 MHz; ZO ≤ 50Ω; tF ≤ 2.5ns;
tR ≤ 2.5ns.
7.20
6
IDT54/74FCT827A/B/C
HIGH-PERFORMANCE CMOS BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDTXXFCT
XX
Device Type
X
Package
X
Process
Blank
B
Commercial
MIL-STD-883, Class B
P
D
E
L
SO
Plastic DIP
CERDIP
CERPACK
Leadless Chip Carrier
Small Outline IC
827A
827B
827C
Non-Inverting 10-Bit Buffer
Fast Non-Inverting 10-Bit Buffer
Super Fast Non-Inverting 10-Bit Buffer
54
74
–55°C to +125°C
0°C to +70°C
2609 cnv* 10
7.20
7
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