IDT IDT74FCT162827ETEB Fast cmos 20-bit buffer Datasheet

FAST CMOS 20-BIT
BUFFERS
IDT54/74FCT16827AT/BT/CT/ET
IDT54/74FCT162827AT/BT/CT/ET
Integrated Device Technology, Inc.
FEATURES:
DESCRIPTION:
• Common features:
– 0.5 MICRON CMOS Technology
– High-speed, low-power CMOS replacement for
ABT functions
– Typical tSK(o) (Output Skew) < 250ps
– Low input and output leakage ≤1µA (max.)
– ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
– Packages include 25 mil pitch SSOP, 19.6 mil pitch
TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack
– Extended commercial range of -40°C to +85°C
– VCC = 5V ±10%
• Features for FCT16827AT/BT/CT/ET:
– High drive outputs (-32mA IOH, 64mA IOL)
– Power off disable outputs permit “live insertion”
– Typical VOLP (Output Ground Bounce) < 1.0V at
VCC = 5V, TA = 25°C
• Features for FCT162827AT/BT/CT/ET:
– Balanced Output Drivers: ±24mA (commercial),
±16mA (military)
– Reduced system switching noise
– Typical VOLP (Output Ground Bounce) < 0.6V at
VCC = 5V,TA = 25°C
The FCT16827AT/BT/CT/ET and FCT162827AT/BT/CT/
ET 20-bit buffers are built using advanced dual metal CMOS
technology. These 20-bit bus drivers provide high-performance bus interface buffering for wide data/address paths or
busses carrying parity. Two pair of NAND-ed output enable
controls offer maximum control flexibility and are organized to
operate the device as two 10-bit buffers or one 20-bit buffer.
Flow-through organization of signal pins simplifies layout. All
inputs are designed with hysteresis for improved noise margin.
The FCT16827AT/BT/CT/ET are ideally suited for driving
high capacitance loads and low impedance backplanes. The
output buffers are designed with power off disable capability
to allow "live insertion" of boards when used as backplane
drivers.
The FCT162827AT/BT/CT/ET have balanced output drive
with current limiting resistors. This offers low ground bounce,
minimal undershoot, and controlled output fall times–reducing
the need for external series terminating resistors. The
FCT162827AT/BT/CT/ET are plug-in replacements for the
FCT16827AT/BT/CT/ET and ABT16827 for on-board interface applications.
FUNCTIONAL BLOCK DIAGRAM
1OE1
2OE 1
1OE2
2OE2
1A1
1Y1
TO 9 OTHER CHANNELS
2A1
2Y1
TO 9 OTHER CHANNELS
2773 drw 01
2773 drw 02
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
1996 Integrated Device Technology, Inc.
5.17
AUGUST 1996
DSC-2773/7
1
IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET
FAST CMOS 20-BIT BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
1OE1
1
56
1OE2
1A1
1Y1
2
55
1A1
54
1A2
1Y2
3
54
1A2
4
53
GND
GND
4
53
GND
1Y3
5
52
1A3
1Y3
5
52
1A3
1Y4
6
51
1A4
1Y4
6
51
1A4
VCC
7
50
VCC
VCC
7
50
VCC
1Y5
8
49
1A5
1Y5
8
49
1A5
1Y6
9
48
1A6
1Y6
9
48
1A6
1Y7
10
47
1A7
1Y7
10
47
1A7
GND
11
46
GND
GND
11
46
GND
1Y8
12
45
1A8
1Y8
12
45
1A8
1Y9
13
44
1A9
1Y9
13
44
1A9
43
1A10
1OE1
1
56
1OE2
1Y1
2
55
1Y2
3
GND
1Y10
1A10
1Y10
14
2Y1
14 SO56-1 43
SO56-2
15 SO56-3 42
2A1
2Y1
15
42
2A1
2Y2
16
41
2A2
2Y2
16
41
2A2
2Y3
17
40
2A3
2Y3
17
40
2A3
GND
18
39
GND
GND
18
39
GND
2Y4
19
38
2A4
2Y4
19
38
2A4
2Y5
20
37
2A5
2Y5
20
37
2A5
2Y6
21
36
2A6
2Y6
21
36
2A6
VCC
22
35
VCC
VCC
22
35
VCC
2Y7
23
34
2A7
2Y7
23
34
2A7
2Y8
24
33
2A8
2Y8
24
33
2A8
GND
25
32
GND
GND
25
32
GND
2Y9
26
31
2A9
2Y9
26
31
2A9
2Y10
27
30
2A10
2Y10
27
30
2A10
2OE1
28
29
2OE2
2OE1
28
29
2OE2
SSOP/
TSSOP/TVSOP
TOP VIEW
E56-1
CERPACK
TOP VIEW
2773 drw 03
2773 drw 04
5.17
2
IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET
FAST CMOS 20-BIT BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FUNCTION TABLE(1)
PIN DESCRIPTION
Pin Names
xOEx
Description
Output Enable Inputs (Active LOW)
xOE1
Inputs
xOE2
Outputs
xYx
xAx
xAx
Data Inputs
L
L
L
L
xYx
3-State Outputs
L
L
H
H
H
X
X
Z
X
H
X
Z
2773 tbl 01
(1)
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High Impedance
ABSOLUTE MAXIMUM RATINGS
Symbol
Description
Max.
VTERM(2) Terminal Voltage with Respect to –0.5 to +7.0
GND
VTERM(3) Terminal Voltage with Respect to
–0.5 to
GND
VCC +0.5
TSTG
Storage Temperature
–65 to +150
Unit
V
I OUT
mA
DC Output Current
–60 to +120
2773 tbl 02
V
°C
CAPACITANCE (TA = +25°C, f = 1.0MHz)
2773 lnk 03
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.
2. All device terminals except FCT162XXXT Output and I/O terminals.
3. Output and I/O terminals for FCT162XXXT.
Symbol
Parameter(1)
CIN
Input
Capacitance
COUT
Output
Capacitance
Conditions
VIN = 0V
Typ.
3.5
VOUT = 0V
3.5
Max. Unit
6.0
pF
8.0
NOTE:
1. This parameter is measured at characterization but not tested.
5.17
pF
2773 lnk 04
3
IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET
FAST CMOS 20-BIT BUFFERS
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 = 5.0V ± 10%; Military: TA = –55°C to +125°C, V CC = 5.0V ± 10%
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
VIL
Input LOW Level
II H
Input HIGH Current (Input pins)(5)
Symbol
VIH
Min.
2.0
Typ.(2)
—
Max.
Guaranteed Logic LOW Level
—
—
0.8
V
VCC = Max.
—
—
±1
µA
—
—
±1
—
—
±1
—
—
±1
—
—
±1
VI = VCC
Input HIGH Current (I/O pins)(5)
II L
Input LOW Current (Input
pins)(5)
VI = GND
Input LOW Current (I/O pins)(5)
I OZH
High Impedance Output Current
VCC = Max.
VO = 2.7V
pins) (5)
I OZL
(3-State Output
VIK
Clamp Diode Voltage
I OS
Short Circuit Current
VH
Input Hysteresis
I CCL
I CCH
I CCZ
Quiescent Power Supply Current
VO = 0.5V
VCC = Min., IIN = –18mA
VCC = Max., VO =
GND (3)
—
VCC = Max., VIN = GND or VCC
—
Unit
V
µA
—
—
±1
—
–0.7
–1.2
V
–80
–140
–225
mA
—
100
—
mV
—
5
500
µA
2773 lnk 05
OUTPUT DRIVE CHARACTERISTICS FOR FCT16827T
Symbol
IO
Parameter
Output Drive Current
Test Conditions(1)
VCC = Max., VO = 2.5V(3)
Min.
–50
Typ.(2)
VOH
Output HIGH Voltage
VCC = Min.
2.5
I OH = –3mA
VIN = VIH or V IL
VOL
Output LOW Voltage
I OFF
Input/Output Power Off Leakage(5)
VCC = Min.
VIN = VIH or V IL
VCC = 0V, VIN or V O
I OH = –12mA MIL.
I OH = –15mA COM'L.
I OH = –24mA MIL.
I OH = –32mA COM'L.(4)
I OL = 48mA MIL.
I OL = 64mA COM'L.
≤ 4.5V
—
Max.
–180
Unit
mA
3.5
—
V
2.4
3.5
—
V
2.0
3.0
—
V
—
0.2
0.55
V
—
—
±1
µA
2773 lnk 06
OUTPUT DRIVE CHARACTERISTICS FOR FCT162827T
Symbol
I ODL
Parameter
Output LOW Current
Test Conditions(1)
VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V (3)
Min.
60
Typ.(2)
115
Max.
200
Unit
mA
I ODH
Output HIGH Current
VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3)
–60
–115
–200
mA
VOH
Output HIGH Voltage
2.4
3.3
—
V
VOL
Output LOW Voltage
VCC = Min.
VIN = VIH or V IL
VCC = Min.
VIN = VIH or V IL
—
0.3
0.55
V
I OH = –16mA MIL.
I OH = –24mA COM'L.
I OL = 16mA MIL.
I OL = 24mA COM'L.
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. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. Duration of the condition can not exceed one second.
5. The test limit for this parameter is ± 5µA at TA = –55°C.
5.17
2773 lnk 07
4
IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET
FAST CMOS 20-BIT BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
∆ICC
ICCD
Parameter
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current (4)
IC
Total Power Supply Current (6)
Test Conditions(1)
VCC = Max.
VIN = 3.4V(3)
VCC = Max.
Outputs Open
xOE1 = xOE2 = GND
One Input Toggling
50% Duty Cycle
VCC = Max.
Outputs Open
fi = 10MHz
50% Duty Cycle
xOE1 = xOE2 = GND
One Bit Toggling
VCC = Max.
Outputs Open
fi = 2.5MHz
50% Duty Cycle
xOE1 = xOE2 = GND
Twenty Bits Toggling
Min.
—
Typ.(2)
0.5
Max.
1.5
Unit
mA
VIN = VCC
VIN = GND
—
60
100
µA/
MHz
VIN = VCC
VIN = GND
—
0.6
1.5
mA
VIN = 3.4V
VIN = GND
—
0.9
2.3
VIN = VCC
VIN = GND
—
3.0
5.5 (5)
VIN = 3.4V
VIN = GND
—
8.0
20.5 (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 (fCPNCP/2 + fiNi)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
∆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)
NCP = Number of Clock Inputs at fCP
fi = Input Frequency
Ni = Number of Inputs at fi
5.17
2773 tbl 08
5
IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET
FAST CMOS 20-BIT BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT16827AT/162827AT
Com'l.
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
xAx to xYx
Output Enable Time
xOEx to xYx
Output Disable Time
xOEx to xYx
FCT16827BT/162827BT
Mil.
Com'l.
Mil.
Condition(1)
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Unit
CL = 50pF
RL = 500Ω
CL = 300pF(4)
RL = 500Ω
CL = 50pF
RL = 500Ω
CL = 300pF(4)
RL = 500Ω
CL = 5pF(4)
RL = 500Ω
CL = 50pF
RL = 500Ω
1.5
8.0
1.5
9.0
1.5
5.0
1.5
6.5
ns
1.5
15.0
1.5
17.0
1.5
13.0
1.5
14.0
1.5
12.0
1.5
13.0
1.5
8.0
1.5
9.0
1.5
23.0
1.5
25.0
1.5
15.0
1.5
16.0
1.5
9.0
1.5
9.0
1.5
6.0
1.5
7.0
1.5
10.0
1.5
10.0
1.5
7.0
1.5
8.0
—
0.5
—
0.5
—
0.5
—
0.5
tSK(o) Output Skew (3)
ns
ns
ns
2773 tbl 09
FCT16827CT/162827CT
Com'l.
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Parameter
Propagation Delay
xAx to xYx
Output Enable Time
xOEx to xYx
Output Disable Time
xOEx to xYx
tSK(o) Output Skew (3)
Condition(1)
Min.(2)
CL = 50pF
RL = 500Ω
CL = 300pF(4)
RL = 500Ω
CL = 50pF
RL = 500Ω
CL = 300pF(4)
RL = 500Ω
CL = 5pF(4)
RL = 500Ω
CL = 50pF
RL = 500Ω
1.5
FCT16827ET/162827ET
Mil.
Max.
Min.(2)
4.4
1.5
1.5
10.0
1.5
Com'l.
Max.
Min.(2)
5.0
1.5
1.5
11.0
7.0
1.5
1.5
14.0
1.5
Mil.
Max.
Min.(2)
Max.
Unit
3.2
—
—
ns
1.5
7.0
—
—
8.0
1.5
4.8
—
—
1.5
15.0
1.5
9.0
—
—
5.7
1.5
6.7
1.5
4.0
—
—
1.5
6.0
1.5
7.0
1.5
4.0
—
—
—
0.5
—
0.5
—
0.5
—
—
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
4. This condition is guaranteed but not tested.
5.17
ns
ns
ns
2773 tbl 10
6
IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET
FAST CMOS 20-BIT BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
SWITCH POSITION
TEST CIRCUITS FOR ALL OUTPUTS
V CC
7.0V
500Ω
VIN
Open Drain
Disable Low
Closed
Open
All Other Tests
D.U.T.
50pF
RT
Switch
Enable Low
V OUT
Pulse
Generator
Test
2773 lnk 11
DEFINITIONS:
CL= Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
500Ω
CL
2773 drw 05
SET-UP, HOLD AND RELEASE TIMES
DATA
INPUT
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
tH
tSU
tREM
tSU
PULSE WIDTH
3V
1.5V
0V
3V
1.5V
0V
LOW-HIGH-LOW
PULSE
1.5V
tW
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
1.5V
2773 drw 07
3V
1.5V
0V
tH
2773 drw 06
PROPAGATION DELAY
ENABLE AND DISABLE TIMES
ENABLE
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
OUTPUT
tPLH
OPPOSITE PHASE
INPUT TRANSITION
tPHL
3V
1.5V
0V
DISABLE
3V
1.5V
CONTROL
INPUT
tPZL
VOH
1.5V
VOL
OUTPUT
NORMALLY
LOW
3V
1.5V
0V
SWITCH
CLOSED
3.5V
1.5V
tPZH
OUTPUT
NORMALLY
HIGH
2773 drw 08
SWITCH
OPEN
0V
tPLZ
3.5V
0.3V
VOL
tPHZ
0.3V
1.5V
0V
VOH
0V
2773 drw 09
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
5.17
7
IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET
FAST CMOS 20-BIT BUFFERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT
XX
XXXX
FCT
Temp. Range
Device Type
X
Package
X
Process
Blank
B
Commercial
MIL-STD-883, Class B
PV
PA
PF
E
Shrink Small Outline Package (SO56-1)
Thin Shrink Small Outline Package (SO56-2)
Thin Very Small Outline Package (SO56-3)
CERPACK (E56-1)
16827AT Non-Inverting 20-Bit Buffers
16827BT
16827CT
16827ET
162827AT
162827BT
162827CT
162827ET
54
74
–55°C to +125°C
–40°C to +85°C
2773 drw 10
5.17
8
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