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Part: IDT74FCT16245ATPFB
Category:
Logic
Description: Fast CMOS 16-bit Bidirectional Transceiver
Company: Integrated Device Technology, Inc.
Datasheet: Download IDT74FCT16245ATPFB datasheet File size : 843 kB
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IDT54/74FCT16245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
FEATURES:
IDT54/74FCT16245T/AT/CT/ET
DESCRIPTION:
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0.5 MICRON CMOS Technology High-speed, low-power CMOS replacement for ABT functions Typical tSK(o) (Output Skew) 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 Available in the following packages: Industrial: SSOP, TSSOP, TVSOP Military: CERPACK
The FCT16245T 16-bit transceiver is built using advanced dual metal CMOS technology. These high-speed, low-power transceivers are ideal for synchronous communication between two busses (A and B). The Direction and Output Enable controls operate these devices as either two independent 8-bit transceivers or one 16-bit transceiver. The direction control pin (xDIR) controls the direction of data flow. The output enable pin (xOE) overrides the direction control and disables both ports. All inputs are designed with hysteresis for improved noise margin. The FCT16245T is ideally suited for driving high-capacitance loads and lowimpedance backplanes. The output buffers are designed with power off disable capability to allow "live insertion" of boards when used as backplane drivers.
FUNCTIONAL BLOCK DIAGRAM
1 DIR 1OE 1A1 1B1 1A2 1B2 1A3 1B3 1A4 1B4 1A5 1B5 1A6 1B6 1A7 1B7 1A8 1B8
2 DIR 2OE 2A1 2B1 2A2 2B2 2A3 2B3 2A4 2B4 2A5 2B5 2A6 2B6 2A7 2B7 2A8 2B8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
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© 2003 Integrated Device Technology, Inc.
JUNE 2003
DSC-5456/3
IDT54/74FCT16245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
PIN CONFIGURATION
1DIR 1B 1 1B 2
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) Description Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Max 0.5 to +7 0.5 to VCC+0.5 65 to +150 60 to +120 Unit V V °C mA
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1OE 1A 1 1A 2
VTERM(3) TSTG I OUT
GND
1B 3 1B 4
GND
1A 3 1A 4
VCC
1B 5 1B 6
VCC
1A 5 1A 6
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. 3 . Output and I/O terminals terminals for FCT162XXX and FCT166XXXT (A-Port).
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol CI N CO U T Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 3.5 3.5 Max. 6 8 Unit pF pF
GND
1B 7 1B 8 2B 1 2B 2
GND
1A 7 1A 8 2A 1 2A 2
NOTE: 1 . This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names xOE xDIR xAx xBx Description Output Enable Inputs (Active LOW) Direction Control Inputs Side A Inputs or 3-State Outputs Side B Inputs or 3-State Outputs
GND
2B 3 2B 4
GND
2A 3 2A 4
VCC
2B 5 2B 6
VCC
2A 5 2A 6
FUNCTION TABLE(1)
Inputs xOE L L H xDIR L H X Outputs Bus B Data to Bus A Bus A Data to Bus B High Z State
GND
2B 7 2B 8 2DIR
GND
2A 7 2A 8 2OE
SSOP/ TSSOP/ TVSOP/ CERPACK TOP VIEW
NOTE: 1 . H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance
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IDT54/74FCT16245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = 40°C to +85°C, VCC = 5.0V ±10%; Military: TA = 55°C to +125°C, VCC = 5.0V ±10%
Symbol VIH VIL IIH Parameter Input HIGH Level Input LOW Level Input HIGH Current (Input pins)(5) Input HIGH Current (I/O pins)(5) IIL Input LOW Current (Input pins)(5) Input LOW Current (I/O pins)(5) IOZH IOZL VIK IOS VH ICCL ICCH ICCZ High Impedance Output Current (3-State Output pins)(5) Clamp Diode Voltage Short Circuit Current Input Hysteresis Quiescent Power Supply Current VCC = Max. VIN = GND or VCC VCC = Min., IIN = 18mA VCC = Max., VO = GND(3) -- VCC = Max. VO = 2.7V VO = 0.5V VI = GND Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VI = VCC Min. 2 -- -- -- -- -- -- -- -- 80 -- -- Typ.(2) -- -- -- -- -- -- -- -- 0.7 140 100 5 Max. -- 0.8 ±1 ±1 ±1 ±1 ±1 ±1 1.2 250 -- 500 V mA mV µA µA Unit V V µA
OUTPUT DRIVE CHARACTERISTICS
Symbol IO VOH Parameter Output Drive Current Output HIGH Voltage Test Conditions(1) VCC = Max., VO = 2.5V(3) VCC = Min. IOH = 3mA, IOH = 12mA MIL VIN = VIH or VIL IOH = 15mA IND IOH = 24mA MIL IOH = 32mA IND(4) VCC = Min. IOL = 48mA MIL VIN = VIH or VIL IOL = 64mA IND VCC = 0V, VIN or VO 4.5V Min. 50 2.5 2.4 2 -- -- Typ.(2) -- 3.5 3.5 3 0.2 -- Max. 180 -- -- -- 0.55 ±1 Unit mA V V V V µA
VOL IOFF
Output LOW Voltage Input/Output Power Off Leakage(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 . 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.
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IDT54/74FCT16245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) VCC = Max. VIN = 3.4V(3) VCC = Max. Outputs Open xOE = xDIR = GND One Input Togging 50% Duty Cycle VCC = Max. Outputs Open fi = 10MHz 50% Duty Cycle xOE = xDIR = GND One Bit Toggling VCC = Max. Outputs Open fi = 2.5MHz 50% Duty Cycle xOE = xDIR = GND Sixteen BitsTogging VIN = VCC VIN = GND Test Conditions(1) Min. -- -- Typ.(2) 0.5 60 Max. 1.5 100 Unit mA µA/ MHz
IC
Total Power Supply Current(6)
VIN = VCC VIN = GND VIN = 3.4V VIN = GND VIN = VCC VIN = GND
--
0.6
1.5
mA
--
0.9
2.3
--
2.4
4.5(5)
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 + 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
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IDT54/74FCT16245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL
Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPZL tSK(o) Parameter Propagation Delay A to B, B to A Output Enable Time xOE to A or B Output Disable Time xOE to A or B Output Enable Time xDIR to A or B(4) Output Disable Time xDIR to A or B(4) Output Skew(3) Condition(1) CL = 50pF RL= 500 74FCT16245CT M i n .( 2 ) Max. 1.5 4.1 1.5 1.5 1.5 1.5 -- 5.8 4.8 5.8 4.8 0.5 74FCT16245ET Min.(2) Max. 1.5 3.2 1.5 1.5 1.5 1.5 -- 4.4 4 4.8 4 0.5 Unit ns ns ns ns ns ns
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - MILITARY
Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPZL tSK(o) Parameter Propagation Delay A to B, B to A Output Enable Time xOE to A or B Output Disable Time xOE to A or B Output Enable Time xDIR to A or B(4) Output Disable Time xDIR to A or B(4) Output Skew(3) Condition(1) CL = 50pF RL= 500 54FCT16245T M i n .( 2 ) Max. 1.5 7.5 1.5 1.5 1.5 1.5 -- 10 10 10 10 0.5 54FCT16245AT M i n .( 2 ) Max. 1.5 4.9 1.5 1.5 1.5 1.5 -- 6.5 6 6.5 6 0.5 54FCT16245CT Min.(2) Max. 1.5 4.5 1.5 1.5 1.5 1.5 -- 6.2 5.2 6.2 5.2 0.5 Unit ns ns ns ns ns 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.
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