IDT IDT54FCT162652AT Fast cmos 16-bit bus transceiver/ register Datasheet

FAST CMOS 16-BIT BUS IDT54/74FCT16652T/AT/CT/ET
IDT54/74FCT162652T/AT/CT/ET
TRANSCEIVER/
REGISTERS
Integrated Device Technology, Inc.
vices are organized as two independent 8-bit bus transceivers
with 3-state D-type registers. For example, the xOEAB and
xOEBA signals control the transceiver functions.
The xSAB and xSBA control pins are provided to select
either real time or stored data transfer. The circuitry used for
select control will eliminate the typical decoding glitch that
occurs in a multiplexer during the transition between stored
and real time data. A LOW input level selects real-time data
and a HIGH level selects stored data.
Data on the A or B data bus, or both, can be stored in the
internal D-flip-flops by LOW-to-HIGH transitions at the appropriate clock pins (xCLKAB or xCLKBA), regardless of the
select or enable control pins. Flow-through organization of
signal pins simplifies layout. All inputs are designed with
hysteresis for improved noise margin.
The FCT16652T/AT/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 FCT162652T/AT/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
FCT162652T/AT/CT/ET are plug-in replacements for the
FCT16652T/AT/CT/ET and ABT16652 for on-board bus interface applications.
FEATURES:
• 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 FCT16652T/AT/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 FCT162652T/AT/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
DESCRIPTION:
The FCT16652T/AT/CT/ET and FCT162652T/AT/CT/ET
16-bit registered transceivers are built using advanced dual
metal CMOS technology. These high-speed, low-power de-
FUNCTIONAL BLOCK DIAGRAM
2OEAB
1OEAB
1OEBA
2OEBA
1CLKBA
2CLKBA
1 SBA
2SBA
1CLKAB
2CLKAB
2SAB
1 SAB
1A1
B REG
B REG
D
D
C
C
1B1
A REG
2 A1
D
D
C
C
TO 7 OTHER CHANNELS
2 B1
A REG
TO 7 OTHER CHANNELS
2549 drw 01
2549 drw 02
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGE
AUGUST 1996
1996 Integrated Device Technology, Inc.
DSC-2549/8
1
IDT54/74FCT16652T/AT/CT/ET, FCT162652T/AT/CT/ET
FAST CMOS 16-BIT BUS TRANSCEIVER/REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
1OEAB
1
56
1OEBA
1CLKAB
2
55
1CLKBA
1SBA
1SAB
3
54
1SBA
53
GND
GND
4
53
GND
5
52
1 B1
1A1
5
52
1B1
1A2
6
51
1 B2
1A2
6
51
1B2
VCC
7
50
VCC
VCC
7
50
VCC
1A3
8
49
1 B3
1A3
8
49
1B3
1A4
9
48
1 B4
1A4
9
48
1B4
1A5
10
47
1 B5
1A5
10
47
1B5
GND
11
46
GND
GND
11
46
GND
1A6
12
45
1 B6
1A6
12
45
1B6
1A7
13
44
1 B7
1A7
13
44
1B7
1A8
14
1 B8
1A8
14
43
1B8
2A1
15
SO56-1 43
SO56-2
SO56-3 42
2 B1
2A1
15
42
2B1
2A2
16
41
2 B2
2A2
16
41
2B2
2A3
17
40
2 B3
2A3
17
40
2B3
GND
18
39
GND
GND
18
39
GND
2A4
19
38
2 B4
2A4
19
38
2B4
2A5
20
37
2 B5
2A5
20
37
2B5
2A6
21
36
2 B6
2A6
21
36
2B6
VCC
22
35
VCC
VCC
22
35
VCC
2A7
23
34
2 B7
2A7
23
34
2B7
2A8
24
33
2 B8
2A8
24
33
2B8
GND
25
32
GND
GND
25
32
GND
2SAB
26
31
2SBA
2SAB
26
31
2SBA
2CLKAB
27
30
2CLKBA
2CLKAB
27
30
2CLKBA
2OEAB
28
29
2OEBA
2OEAB
28
29
2OEBA
1OEAB
1
56
1OEBA
1CLKAB
2
55
1CLKBA
1SAB
3
54
GND
4
1A1
SSOP/
TSSOP/TVSOP
TOP VIEW
E56-1
2549 drw 03
2549 drw 04
CERPACK
TOP VIEW
2
IDT54/74FCT16652T/AT/CT/ET, FCT162652T/AT/CT/ET
FAST CMOS 16-BIT BUS TRANSCEIVER/REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol
Parameter(1)
CIN
Input
Capacitance
CI/O
I/O
Capacitance
Pin Names
xAx
Description
Data Register A Inputs
Data Register B Outputs
xBx
Data Register B Inputs
Data Register A Outputs
xCLKAB, xCLKBA Clock Pulse Inputs
xSAB, xSBA
xOEAB, xOEBA
Conditions
VIN = 0V
Typ.
4.5
VOUT = 0V
5.5
Max. Unit
6.0
pF
8.0
NOTE:
1. This parameter is measured at characterization but not tested.
Output Data Source Select Inputs
pF
2549 lnk 02
Output Enable Inputs
2549 tbl 01
FUNCTION TABLE(2)
Data I/O(1)
Inputs
xOEAB
xOEBA
L
L
H
H
H or L
↑
X
H
H
H
L
L
L
L
H
H
H
xCLKAB xCLKBA
Operation or Function
xSAB
xSBA
xAx
xBx
H or L
↑
X
X
X
X
Input
Input
↑
↑
H or L
↑
X
X(2)
X
X
Input
Input
X
L
H or L
↑
↑
↑
X
X
X
X(2)
Unspecified(1)
Output
Input
Input
Hold A, Store B
Store B in both Registers
L
L
H
H
L
X
X
X
H or L
H or L
X
H or L
X
X
H or L
X
X
L
H
H
L
H
X
X
H
Output
Input
Input
Output
Output
Output
Real Time B Data to A Bus
Stored B Data to A Bus
Real Time A Data to B Bus
Stored A Data to B Bus
Stored A Data to B Bus and
Stored B Data to A Bus
Isolation
Store A and B Data
Unspecified(1) Store A, Hold B
Output
Store A in Both Registers
NOTES:
1. The data output functions may be enabled or disabled by various signals at the xOEAB or xOEBA inputs.
Data input functions are always enabled, i.e. data at the bus pins will be stored on every LOW-to-HIGH
transition on the clocks inputs.
2. Select control = L: clocks can occur simultaneously.
Select control = H: clocks must be staggered to load both registers.
3. H = HIGH Voltage Level
L = LOW Voltage Level
ABSOLUTE MAXIMUM RATINGS(1)
X = Don't care
Symbol
Description
Max.
↑ = LOW-to-HIGH Transition
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
I OUT
DC Output Current
–60 to +120
2549 tbl 03
Unit
V
V
°C
mA
2549 lnk 04
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.
3
IDT54/74FCT16652T/AT/CT/ET, FCT162652T/AT/CT/ET
FAST CMOS 16-BIT BUS TRANSCEIVER/REGISTER
BUS
A
MILITARY AND COMMERCIAL TEMPERATURE RANGES
BUS
B
BUS
A
BUS
B
2549 drw 05
xOEAB
L
2549 drw 06
xOEBA
xCLKAB
xCLKBA
xSAB
xSBA
L
X
X
X
L
xOEAB
xOEBA
X
REAL-TIME TRANSFER
BUS B TO A
BUS
A
xCLKAB
H
H
xCLKBA
xSAB
xSBA
X
L
X
REAL-TIME TRANSFER
BUS A TO B
BUS
A
BUS
B
BUS
B
2549 drw 07
2549 drw 08
xOEAB
xOEAB xOEBA
xCLKAB
xCLKBA
xSAB
xSBA
X
X
X
↑
X
↑
X
X
X
H
↑
↑
X
X
X
H
L
L
H
STORAGE FROM
A AND/OR B
xOEBA
L
xCLKAB
xCLKBA
H or L
H or L
TRANSFER STORED
DATA TO A AND/OR B
4
xSAB
H
xSBA
H
IDT54/74FCT16652T/AT/CT/ET, FCT162652T/AT/CT/ET
FAST CMOS 16-BIT BUS TRANSCEIVER/REGISTER
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, VCC = 5.0V ±10%
Symbol
VIH
VIL
II H
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
Input LOW Level
Input HIGH Current (Input
Input HIGH Current (I/O
II L
pins)(5)
Min.
2.0
Typ.(2)
—
Max.
—
Unit
V
Guaranteed Logic LOW Level
—
—
0.8
V
VCC = Max.
VI = VCC
—
—
±1
µA
—
—
±1
VI = GND
—
—
±1
—
—
±1
VO = 2.7V
—
—
±1
VO = 0.5V
—
—
±1
—
–0.7
–1.2
–80
–140
–225
mA
—
100
—
mV
—
5
500
µA
pins)(5)
Input LOW Current (Input pins)(5)
Input LOW Current (I/O
pins)(5)
I OZH
High Impedance Output Current
I OZL
(3-State Output pins) (5)
VIK
Clamp Diode Voltage
I OS
Short Circuit Current
VH
Input Hysteresis
I CCL
I CCH
I CCZ
Quiescent Power Supply Current
VCC = Max.
VCC = Min., IIN = –18mA
VCC = Max., VO =
GND (3)
—
VCC = Max., VIN = GND or VCC
µA
V
2549 lnk 05
OUTPUT DRIVE CHARACTERISTICS FOR FCT16652T
Symbol
IO
Parameter
Output Drive Current
Test Conditions(1)
VCC = Max., VO = 2.5V(3)
Min.
–50
Typ.(2)
—
Max.
–180
Unit
mA
VOH
Output HIGH Voltage
VCC = Min.
2.5
3.5
—
V
2.4
3.5
—
V
2.0
3.0
—
V
—
0.2
0.55
V
—
—
±1
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
µA
2549 lnk 06
OUTPUT DRIVE CHARACTERISTICS FOR FCT162652T
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
2549 lnk 07
IDT54/74FCT16652T/AT/CT/ET, FCT162652T/AT/CT/ET
FAST CMOS 16-BIT BUS TRANSCEIVER/REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Test Conditions(1)
Min.
—
Typ.(2)
0.5
Max.
1.5
Unit
mA
∆ICC
Parameter
Quiescent Power Supply Current
TTL Inputs HIGH
ICCD
Dynamic Power Supply Current (4)
VIN = VCC
VCC = Max.
Outputs Open
VIN = GND
xOEAB = xOEBA=GND
One Input Toggling
50% Duty Cycle
—
75
120
µA/
MHz
IC
Total Power Supply Current (6)
VCC = Max.
Outputs Open
fCP = 10MHz (xCLKBA)
50% Duty Cycle
xOEAB = xOEBA=GND
One Bit Toggling
fi = 5MHz
50% Duty Cycle
VIN = VCC
VIN = GND
—
0.8
1.7
mA
VIN = 3.4V
VIN = GND
—
1.3
3.2
VCC = Max.
Outputs Open
fCP = 10MHz (xCLKBA)
50% Duty Cycle
xOEAB = xOEBA=GND
Sixteen Bits Toggling
fi = 2.5MHz
50% Duty Cycle
VIN = VCC
VIN = GND
—
3.8
6.5 (5)
VIN = 3.4V
VIN = GND
—
8.3
20.0 (5)
VCC = Max.
VIN = 3.4V(3)
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
6
2549 tbl 08
IDT54/74FCT16652T/AT/CT/ET, FCT162652T/AT/CT/ET
FAST CMOS 16-BIT BUS TRANSCEIVER/REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT16652T/162652T
Com'l.
Symbol
Parameter
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPLH
tPHL
tSU
Propagation Delay
Bus to Bus
Output Enable Time
xOEAB or xOEBA to Bus
Output Disable Time
xOEAB or xOEBA to Bus
Propagation Delay
Clock to Bus
Propagation Delay xSBA or
xSAB to Bus
Set-up Time HIGH or LOW
Bus to Clock
tH
Hold Time HIGH or LOW
Bus to Clock
tW
Clock Pulse Width
HIGH or LOW
tSK(o) Output Skew (3)
Condition(1)
Min.(2)
CL = 50pF
RL = 500Ω
2.0
FCT16652AT/162652AT
Mil.
Max.
Min.(2)
9.0
2.0
2.0
14.0
2.0
Com'l.
Max.
Min.(2)
11.0
2.0
2.0
15.0
9.0
2.0
2.0
9.0
2.0
Mil.
Max.
Min.(2)
Max.
Unit
6.3
2.0
7.7
ns
2.0
9.8
2.0
10.5
ns
11.0
2.0
6.3
2.0
7.7
ns
2.0
10.0
2.0
6.3
2.0
7.0
ns
11.0
2.0
12.0
2.0
7.7
2.0
8.4
ns
4.0
—
4.5
—
2.0
—
2.0
—
ns
2.0
—
2.0
—
1.5
—
1.5
—
ns
6.0
—
6.0
—
5.0
—
5.0
—
ns
—
0.5
—
0.5
—
0.5
—
0.5
ns
2549 tbl 09
FCT16652CT/162652CT
Com'l.
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPLH
tPHL
tSU
Parameter
Propagation Delay
Bus to Bus
Output Enable Time
xOEAB or xOEBA to Bus
Output Disable Time
xOEAB or xOEBA to Bus
Propagation Delay
Clock to Bus
Propagation Delay xSBA or
xSAB to Bus
Set-up Time HIGH or LOW
Bus to Clock
tH
Hold Time HIGH or LOW
Bus to Clock
tW
Clock Pulse Width
HIGH or LOW
tSK(o) Output Skew (3)
Condition(1)
Min.(2)
CL = 50pF
RL = 500Ω
1.5
FCT16652ET/162652ET
Mil.
Max.
Min.(2)
5.4
1.5
1.5
7.8
1.5
Com'l.
Max.
Min.(2)
6.0
1.5
1.5
8.9
6.3
1.5
1.5
5.7
1.5
Mil.
Max.
Min.(2)
Max.
Unit
3.8
—
—
ns
1.5
4.8
—
—
ns
7.7
1.5
4.0
—
—
ns
1.5
6.3
1.5
3.8
—
—
ns
6.2
1.5
7.0
1.5
4.2
—
—
ns
2.0
—
2.0
—
2.0
—
—
—
ns
1.5
—
1.5
—
0.0
—
—
—
ns
5.0
—
5.0
—
3.0 (4)
—
—
—
ns
—
0.5
—
0.5
—
0.5
—
—
ns
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 limit is guaranteed but not tested.
7
2549 tbl 10
IDT54/74FCT16652T/AT/CT/ET, FCT162652T/AT/CT/ET
FAST CMOS 16-BIT BUS TRANSCEIVER/REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS
V CC
SWITCH POSITION
7.0V
RT
Closed
Open
2549 lnk 07
DEFINITIONS:
CL= Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
D.U.T.
50pF
Open Drain
Disable Low
All Other Tests
V OUT
Pulse
Generator
Switch
Enable Low
500Ω
VIN
Test
500Ω
CL
2549 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
3V
1.5V
0V
tH
2549 drw 07
2549 drw 06
ENABLE AND DISABLE TIMES
PROPAGATION DELAY
ENABLE
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
OUTPUT
tPLH
OPPOSITE PHASE
INPUT TRANSITION
tPHL
3V
1.5V
0V
VOH
1.5V
VOL
DISABLE
3V
CONTROL
INPUT
tPLZ
tPZL
OUTPUT
NORMALLY
LOW
3V
1.5V
0V
SWITCH
CLOSED
3.5V
1.5V
tPZH
OUTPUT
NORMALLY
HIGH
2549 drw 08
SWITCH
OPEN
1.5V
0V
3.5V
0.3V
VOL
tPHZ
0.3V
VOH
1.5V
0V
0V
2549 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
8
IDT54/74FCT16652T/AT/CT/ET, FCT162652T/AT/CT/ET
FAST CMOS 16-BIT BUS TRANSCEIVER/REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT
XX
FCT XXXX
Device Type
Temperature
Range
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)
16652T
Non-Inverting 16-Bit Bus Transceiver/Register
16652AT
16652CT
16652ET
162652T
162652AT
162652CT
162652ET
–55°C to +125°C
–40°C to +85°C
54
74
2549 drw 14
Integrated Device Technology, Inc. reserves the right to make changes to the specifications in this data sheet in order to improve design or performance and to supply the best possible product.
Integrated Device Technology, Inc.
2975 Stender Way, Santa Clara, CA 95054-3090
Telephone: (408) 727-6116
9
FAX 408-492-8674
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