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Part: 74FCT16601T

Category:
 Logic

Description: 18-Bit Universal Bus Transceiver With 3-State Outputs

Company: Integrated Device Technology, Inc.

Datasheet: Download 74FCT16601T datasheet     File size : 180 kB

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Datasheet text preview:
IDT74FCT16601AT/CT FAST CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER

INDUSTRIAL TEMPERATURE RANGE

FAST CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
FEATURES:
· · · · · · · · · ·

IDT74FCT16601AT/CT

DESCRIPTION:

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) VCC = 5V ±10% 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 SSOP and TSSOP packages

The FCT16601T 18-bit registered transceivers are built using advanced dual metal CMOS technology. These high-speed, low-power 18-bit registered bus transceivers combine D-type latches and D-type flip-flops to allow data flow in either direction in a transparent, latched or clocked mode. Each direction has an independent latch enable, an independent clock with a clock enable, and an independent output enable. The package is organized with a flow-through signal pin organization to ease board layout. All inputs are designed with hysteresis for improved noise margin. This transceiver is ideally suited for high speed memory interfaces which utilize high speed synchronous writes, by clocking the data into a high speed register. Reads can then be performed in a transparent or latched mode utilizing the same transceiver. The FCT16601T 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.

FUNCTIONAL BLOCK DIAGRAM
OEAB C LKE NA B C LK A B LEA B LEB A C LK B A
1 56 55 2

28

30

C LKE NB A OEBA

29

27

3

A1

CE 1D C1 CLK CE 1D C1 C LK

54

B1

T O 17 OTHER CHANNELS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.

INDUSTRIAL TEMPERATURE RANGE
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© 2001 Integrated Device Technology, Inc.

MAY 2001
DSC-5446/-

IDT74FCT16601AT/CT FAST CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER

INDUSTRIAL TEMPERATURE RANGE

PIN CONFIGURATION
OEAB LEAB A1 GND A2 A3 VCC A4 A5 A6 GND A7 A8 A9 A1 0 A1 1 A1 2 GND A1 3 A1 4 A1 5 VCC A1 6 A1 7 GND A1 8 OEBA LEBA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 CLKENAB CLKAB B1 GND B2 B3 VCC B4 B5 B6 GND B7 B8 B9 B1 0 B1 1 B1 2 GND B1 3 B1 4 B1 5 VCC B1 6 B1 7 GND B1 8 CLKBA CLKENBA

ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) TSTG IOUT Description 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 VTERM(3) Terminal Voltage with Respect to GND

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 FCT162XXX Output and I/O terminals. 3 . Output and I/O terminals for FCT162XXX.

CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol CI N COUT Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 3.5 3.5 Max. 6 8 Unit pF pF

NOTE: 1 . This parameter is measured at characterization but not tested.

FUNCTION TABLE(1, 4)
CLKENAB X X X H L L L L OEAB H L L L L L L L Inputs LEAB X H H L L L L L CLKAB X X X X # # L H A X L H X L H X X Outputs B Z L H B(2) L H B(2) B(3)

SSOP/ TSSOP TOP VIEW

PIN DESCRIPTION
Pin Names OEAB OEBA LEAB LEBA CLKAB CLKBA Ax Bx CLKENAB CLKENBA Description A-to-B Output Enable Input (Active LOW) B-to-A Output Enable Input (Active LOW) A-to-B Latch Enable Input B-to-A Latch Enable Input A-to-B Clock Input B-to-A Clock Input A-to-B Data Inputs or B-to-A 3-State Outputs B-to-A Data Inputs or A-to-B 3-State Outputs A to B Clock Enable Input B to A Clock Enable Input

NOTES: 1 . A-to-B data flow is shown. B-to-A data flow is similar but uses OEBA, LEBA, and CLKBA. 2 . Output level before the indicated steady-state input conditions were established. 3 . Output level before the indicated steady-state input conditions were established, provided that CLKAB was HIGH before LEAB went LOW. 4 . H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance = LOW-to-HIGH Transition

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IDT74FCT16601AT/CT FAST CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER

INDUSTRIAL TEMPERATURE RANGE

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = ­40°C to +85°C, VCC = 5.0V ±10%
Symbol VIH VIL IIH IIL IOZH IOZL VIK IOS VH ICCL ICCH ICCZ Parameter Input HIGH Level Input LOW Level Input HIGH Current (Input pins) Input HIGH Current (I/O pins) Input LOW Current (Input pins) Input LOW Current (I/O pins) High Impedance Output Current (3-State Output pins) 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 VCC = Max., VO = VCC = Min. VIN = VIH or VIL VCC = Min. VIN = VIH or VIL VCC = 0V, VIN or VO 4.5V Test Conditions(1) 2.5V(3) IOH = ­3mA IOH = ­15mA IOH = ­32mA(4) IOL = 64mA Min. ­50 2.5 2.4 2 -- -- Typ.(2) -- 3.5 3.5 3 0.2 -- Max. ­180 -- -- -- 0.55 ±1 Unit mA V

VOH IOFF

Output LOW Voltage Input/Output Power Off Leakage

V 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.

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IDT74FCT16601AT/CT FAST CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER

INDUSTRIAL TEMPERATURE RANGE

POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) Test Conditions(1) VCC = Max. VIN = 3.4V(3) VCC = Max., Outputs Open OEAB = VCC, OEBA = GND One Input Toggling 50% Duty Cycle VCC = Max., Outputs Open fCP = 10MHz (CLKBA) 50% Duty Cycle OEAB = VCC OEBA = GND LEAB = GND CLKENBA = GND One Bit Toggling fi = 5MHz 50% Duty Cycle VCC = Max., Outputs Open fCP = 10MHz (CLKBA) 50% Duty Cycle OEAB = VCC OEBA = GND LEBA = GND CLKENBA = GND Eighteen Bits Toggling fi = 2.5MHz 50% Duty Cycle Min. -- -- Typ.(2) 0.5 75 Max. 1.5 120 Unit mA µA/ MHz

VIN = VCC VIN = GND

IC

Total Power Supply Current(6)

VIN = VCC VIN = GND

--

0.8

1.7

mA

VIN = 3.4V VIN = GND

--

1.3

3.2

VIN = VCC VIN = GND

--

3.8

6.5(5)

VIN = 3.4V VIN = GND

--

8.5

20.8(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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IDT74FCT16601AT/CT FAST CMOS 18-BIT UNIVERSAL BUS TRANSCEIVER

INDUSTRIAL TEMPERATURE RANGE

SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT16601AT Symbol fMAX tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tSU tH tSU tH tSU tH tW tW tSK(o) Parameter CLKAB or CLKBA frequency(3) Propagation Delay Ax to Bx or Bx to Ax Propagation Delay LEBA to Ax, LEAB to Bx Propagation Delay CLKBA to Ax, CLKAB to Bx Output Enable Time OEBA to Ax, OEAB to Bx Output Disable Time OEBA to Ax, OEAB to Bx Set-up Time, HIGH or LOW Ax to CLKAB, Bx to CLKBA Hold Time, HIGH or LOW Ax after CLKAB, Bx after CLKBA Set-up Time, HIGH or LOW Ax to LEAB, Bx to LEBA Hold Time HIGH or LOW Ax after LEAB, Bx after LEBA Set-up Time, CLKEN to CLK Hold Time, CLKEN after CLK LEAB or LEBA Pulse Width HIGH(3) CLKAB or CLKBA Pulse Width HIGH or LOW(3) Output Skew(4) Condition(1) CL = 50pF RL = 500 Min.(2) -- 1.5 1.5 1.5 1.5 1.5 4 0 Clock LOW ClockHIGH 1 2.5 2 2.5 0 2.5 3 -- Max. 150 4.9 5.2 4.7 5.8 6.2 -- -- -- -- -- -- -- -- -- 0.5 FCT16601CT Min.(2) -- 1.5 1.5 1.5 1.5 1.5 2.4 0 1 1.5 0.5 2 0 2.5 3 -- Max. 150 4 4.2 4.2 4.8 5.2 -- -- -- -- -- -- -- -- -- 0.5 Unit MHz ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns

NOTES: 1 . See test circuits and waveforms. 2 . Minimum limits are guaranteed but not tested on Propagation Delays. 3 . This parameter is guaranteed but not tested. 4 . Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.

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