IDT74FCT16245CTPF8 [IDT]
Bus Transceiver, FCT Series, 2-Func, 8-Bit, True Output, CMOS, PDSO48, TVSOP-48;
| 型号： | IDT74FCT16245CTPF8 |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Bus Transceiver, FCT Series, 2-Func, 8-Bit, True Output, CMOS, PDSO48, TVSOP-48 光电二极管 电视 |
| 文件： | 总7页 (文件大小：99K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FAST CMOS 16-BIT
BIDIRECTIONAL
TRANSCEIVER
IDT54/74FCT16245T/AT/CT/ET
DESCRIPTION:
FEATURES:
TheFCT16245T16-bittransceiverisbuiltusingadvanceddualmetalCMOS
technology. These high-speed, low-power transceivers are ideal for
synchronouscommunicationbetweentwobusses(AandB).TheDirectionand
OutputEnablecontrolsoperatethesedevicesaseithertwoindependent8-bit
transceiversorone16-bittransceiver.Thedirectioncontrolpin(xDIR)controls
thedirectionofdataflow.Theoutputenablepin(xOE)overridesthedirection
control and disables both ports. All inputs are designed with hysteresis for
improvednoisemargin.
• 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)
• 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
TheFCT16245Tisideallysuitedfordrivinghigh-capacitanceloadsandlow-
impedancebackplanes.Theoutputbuffersaredesignedwithpoweroffdisable
capabilitytoallow"liveinsertion"ofboardswhenusedasbackplanedrivers.
• Available in the following packages:
– Industrial: SSOP, TSSOP, TVSOP
– Military:CERPACK
FUNCTIONALBLOCKDIAGRAM
1 DIR
2 DIR
1OE
2OE
1A1
2A1
1B1
2B1
1A2
2A2
1B2
2B2
1A3
2A3
1B3
2B3
1A4
2A4
1B4
2B4
1A5
2A5
1B5
2B5
1A6
2A6
1B6
2B6
1A7
2A7
1B7
2B7
1A8
2A8
1B8
2B8
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
JUNE 2006
1
© 2006 Integrated Device Technology, Inc.
DSC-5456/8
IDT54/74FCT16245T/AT/CT/ET
FASTCMOS16-BITBIDIRECTIONALTRANSCEIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
ABSOLUTE MAXIMUM RATINGS(1)
PINCONFIGURATION
Symbol
Description
Max
Unit
V
(2)
VTERM
Terminal Voltage with Respect to GND
–0.5 to +7
(3)
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1DIR
1B1
VTERM
Terminal Voltage with Respect to GND –0.5 to VCC+0.5
V
1OE
TSTG
IOUT
Storage Temperature
DC Output Current
–65 to +150
–60 to +120
° C
mA
2
1A1
3
1B2
1A2
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 and FCT166XXXT (APort) Output and
I/O terminals.
GND
4
GND
5
1B3
1A3
6
1B4
1A4
VCC
7
VCC
3. Output and I/O terminals terminals for FCT162XXX and FCT166XXXT (A-Port).
8
1B5
1A5
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol
9
Parameter(1)
Conditions
Typ.
Max. Unit
1B6
1A6
CIN
Input Capacitance
Output Capacitance
VIN = 0V
3.5
6
8
pF
pF
GND
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GND
COUT
VOUT = 0V
3.5
1B7
1B8
2B1
1A7
1A8
2A1
NOTE:
1. This parameter is measured at characterization but not tested.
PINDESCRIPTION
Pin Names
2B2
2A2
Description
GND
GND
xOE
xDIR
Output Enable Inputs (Active LOW)
Direction Control Inputs
2B3
2A3
xAx
Side A Inputs or 3-State Outputs
Side B Inputs or 3-State Outputs
2B4
2A4
xBx
VCC
VCC
2B5
2A5
FUNCTIONTABLE(1)
2B6
2A6
Inputs
GND
GND
xOE
L
xDIR
L
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
High Z State
2B7
2B8
2A7
2A8
2OE
L
H
H
X
2DIR
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
SSOP/ TSSOP/ TVSOP/ CERPACK
TOP VIEW
Z = High-Impedance
2
IDT54/74FCT16245T/AT/CT/ET
FASTCMOS16-BITBIDIRECTIONALTRANSCEIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±10%; Military: TA = –55°C to +125°C, VCC = 5.0V ±10%
Symbol
VIH
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
Min.
2
Typ.(2)
—
Max.
—
0.8
1
Unit
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
VCC = Max.
—
—
—
—
—
—
—
—
–80
—
V
IIH
Input HIGH Current (Input pins)(5)
Input HIGH Current (I/O pins)(5)
Input LOW Current (Input pins)(5)
Input LOW Current (I/O pins)(5)
High Impedance Output Current
VI = VCC
—
µA
—
1
IIL
VI = GND
—
1
—
1
IOZH
IOZL
VIK
IOS
VCC = Max.
VO = 2.7V
VO = 0.5V
—
1
µA
(5)
(3-State Output pins)
—
1
Clamp Diode Voltage
Short Circuit Current
VCC = Min., IIN = –18mA
–0.7
–140
–1.2
–250
V
(3)
VCC = Max., VO = GND
mA
VH
Input Hysteresis
—
—
—
100
5
—
mV
µ A
ICCL
ICCH
ICCZ
Quiescent Power Supply Current
VCC = Max.
VIN = GND or VCC
500
OUTPUTDRIVECHARACTERISTICS
Symbol
IO
Parameter
OutputDriveCurrent
Output HIGH Voltage
Test Conditions(1)
Min.
–50
–2.5
2.4
Typ.(2)
Max.
–180
—
Unit
mA
V
(3)
VCC = Max., VO = 2.5V
—
3.5
3.5
VOH
VCC = Min.
IOH = –3mA,
VIN = VIH or VIL
IOH = –12mA MIL
IOH = –15mA IND
IOH = –24mA MIL
—
V
2
3
—
0.55
±1
V
V
(4)
IOH = –32mA IND
IOL = 48mA MIL
IOL = 64mA IND
VOL
Output LOWVoltage
VCC = Min.
—
—
0.2
—
VIN = VIH or VIL
IOFF
Input/OutputPowerOffLeakage(5)
VCC = 0V, VIN or VO ≤ 4.5V
μA
NOTES:
1. For conditions shown as Min. or Max., 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 shorted 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.
3
IDT54/74FCT16245T/AT/CT/ET
FASTCMOS16-BITBIDIRECTIONALTRANSCEIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
POWERSUPPLYCHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
ΔICC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC = Max.
VIN = 3.4V
—
0.5
1.5
mA
(3)
ICCD
IC
Dynamic Power Supply
Current(4)
VCC = Max.
Outputs Open
xOE = xDIR = GND
One Input Togging
50% Duty Cycle
VIN = VCC
VIN = GND
—
60
100
µ A /
MHz
Total Power Supply Current(6)
VCC = Max.
Outputs Open
fi = 10MHz
VIN = VCC
VIN = GND
—
—
—
0.6
0.9
2.4
1.5
2.3
mA
50% Duty Cycle
xOE = xDIR = GND
One Bit Toggling
VIN = 3.4V
VIN = GND
VCC = Max.
VIN = VCC
4.5(5)
Outputs Open
fi = 2.5MHz
VIN = GND
50% Duty Cycle
xOE = xDIR = GND
Sixteen BitsTogging
VIN = 3.4V
VIN = GND
—
6.4
16.5(5)
NOTES:
1. For conditions shown as Min. or Max., 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 + ΔICC DHNT + ICCD (fCPNCP/2 + fiNi)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
ΔICC = 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
4
IDT54/74FCT16245T/AT/CT/ET
FASTCMOS16-BITBIDIRECTIONALTRANSCEIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE-INDUSTRIAL
74FCT16245AT
74FCT16245CT 74FCT16245ET
Symbol
tPLH
Parameter
PropagationDelay
A to B, B to A
Condition(1)
CL = 50pF
RL= 500Ω
Min.(2)
Max. Min.(2)
Max.
Min.(2) Max.
Unit
1.5
4.6
6.2
5
1.5
1.5
1.5
1.5
1.5
—
4.1
1.5
1.5
1.5
1.5
1.5
—
3.2
4.4
4
ns
tPHL
tPZH
tPZL
OutputEnableTime
1.5
1.5
1.5
1.5
—
5.8
4.8
5.8
4.8
0.5
ns
ns
ns
ns
ns
xOE to A or B
OutputDisableTime
xOE to A or B
tPHZ
tPLZ
tPZH
tPZL
OutputEnableTime
6.2
5
4.8
4
(4)
xDIR to A or B
tPHZ
tPZL
OutputDisableTime
(4)
xDIR to A or B
(3)
tSK(o)
OutputSkew
0.5
0.5
SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE-MILITARY
54FCT16245T
54FCT16245AT 54FCT16245CT
Symbol
tPLH
Parameter
PropagationDelay
A to B, B to A
Condition(1)
CL = 50pF
RL= 500Ω
Min.(2)
Max.
Min.(2)
Max.
Min.(2) Max.
Unit
1.5
1.5
1.5
1.5
1.5
—
7.5
1.5
4.9
1.5
1.5
1.5
1.5
1.5
—
4.5
6.2
5.2
6.2
5.2
0.5
ns
tPHL
tPZH
tPZL
OutputEnableTime
10
10
10
10
0.5
1.5
1.5
1.5
1.5
—
6.5
6
ns
ns
ns
ns
ns
xOE to A or B
OutputDisableTime
xOE to A or B
tPHZ
tPLZ
tPZH
tPZL
OutputEnableTime
6.5
6
(4)
xDIR to A or B
tPHZ
tPZL
OutputDisableTime
(4)
xDIR to A or B
(3)
tSK(o)
OutputSkew
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 limit is guaranteed but not tested.
5
IDT54/74FCT16245T/AT/CT/ET
FASTCMOS16-BITBIDIRECTIONALTRANSCEIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
TESTCIRCUITSANDWAVEFORMS
SWITCHPOSITION
VCC
7.0V
Test
Switch
Closed
Open
Open Drain
Disable Low
Enable Low
500Ω
VOUT
VIN
Pulse
Generator
All Other Tests
D.U.T.
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
50pF
CL
500Ω
RT
Test Circuits for All Outputs
3V
DATA
1.5V
INPUT
0V
LOW-HIGH-LOW
PULSE
tH
tSU
1.5V
1.5V
3V
1.5V
0V
TIMING
INPUT
tW
ASYNCHRONOUS CONTROL
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.
Pulse Width
Set-up, Hold, and Release Times
ENABLE
DISABLE
3V
1.5V
0V
3V
SAME PHASE
CONTROL
INPUT
1.5V
0V
INPUT TRANSITION
tPLH
tPLH
tPHL
tPHL
tPZL
tPLZ
VOH
1.5V
VOL
OUTPUT
3.5V
1.5V
3.5V
VOL
OUTPUT
NORMALLY
LOW
SWITCH
CLOSED
0.3V
0.3V
3V
1.5V
0V
tPZH
tPHZ
OPPOSITE PHASE
INPUT TRANSITION
VOH
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
1.5V
0V
0V
Propagation Delay
Enable and Disable Times
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.
6
IDT54/74FCT16245T/AT/CT/ET
FASTCMOS16-BITBIDIRECTIONALTRANSCEIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
ORDERINGINFORMATION
IDT
XX
FCT
XXXX
XXX
XX
X
Temp. Range
Family
Package
Process
Device Type
Blank
B
Industrial
MIL-STD-883, Class B
Industrial Options
Shrink Small Outline Package
SSOP - Green
Thin Shrink Small Outline Package
TSSOP - Green
Thin Very Small Outline Package
TVSOP - Green
PV
PVG
PA
PAG
PF
PFG
Military Options
CERPACK
E
16-Bit Bidirectional Transceiver
245T
245AT
245CT
245ET
16
Double-Density, 5 Volt, Balanced Drive
54
74
– 55°C to +125°C
– 40°C to +85°C
CORPORATE HEADQUARTERS
6024 Silver Creek Valley Road
San Jose, CA 95138
for SALES:
800-345-7015 or 408-284-8200
fax: 408-284-2775
for Tech Support:
logichelp@idt.com
www.idt.com
7
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