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IDT74FCT3827A/B 3.3V CMOS 10-BIT BUFFER
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 10-BIT BUFFER
IDT74FCT3827A/B
* 0.5 MICRON CMOS Technology * ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * VCC = 3.3V 0.3V, Normal Range * VCC = 2.7V to 3.6V, Extended Range * CMOS power levels (0.4W typ. static) * Rail-to-Rail output swing for increased noise margin * Available in QSOP and SOIC packages
FEATURES:
DESCRIPTION:
The FCT3827A/B 10-bit bus drivers are built using an advanced dual metal CMOS technology. These high speed, low power buffers are ideal for high-performance bus interface buffering for wide data/address paths or buses carrying parity. The 10-bit buffers have NAND-ed output enables for maximum control flexibility. All of the FCT3827 high performance interface components are designed for high-capacitance load drive capability, while providing lowcapacitance bus loading at both inputs and outputs.
FUNCTIONAL BLOCK DIAGRAM
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
OE1
OE2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
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NOVEMBER 2000
DSC-3092/6
(c) 2000 Integrated Device Technology, Inc.
IDT74FCT3827A/B 3.3V CMOS 10-BIT BUFFER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
OE1 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 GND 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VCC Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 OE2
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) VTERM(3) VTERM(4) TSTG IOUT Description Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Max -0.5 to +4.6 -0.5 to +7 -0.5 to VCC+0.5 -65 to +150 -60 to +60 Unit V V V C mA
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. VCC terminals. 3. Input terminals. 4. Outputs and I/O terminals.
QSOP/ SOIC TOP VIEW
CAPACITANCE (TA = +25C, F = 1.0MHz)
Symbol CIN COUT Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 3.5 4 Max. 6 8 Unit pF pF
NOTE: 1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names OEx Dx Yx I/O I I O Description When both are LOW, the outputs are enabled. When either one or both are HIGH, the outputs are High Z. 10-Bit Data Input 10-Bit Data Output
FUNCTION TABLE(1)
Inputs Function Transparent 3-State
NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High Impedance
Outputs Dx L H X X Yx L H Z Z
OE1 L L H X
OE2 L L X H
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IDT74FCT3827A/B 3.3V CMOS 10-BIT BUFFER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 2.7V to 3.6V
Symbol VIH VIL IIH IIL IOZH IOZL VIK IODH IODL VOH Parameter Input HIGH Level (Input pins) Input HIGH Level (I/O pins) Input LOW Level (Input and I/O pins) 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 Output HIGH Current Output LOW Current Output HIGH Voltage VCC = Min., IIN = -18mA VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3) VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3) VCC = Min. VIN = VIH or VIL VCC = 3V VIN = VIH or VIL VOL Output LOW Voltage VCC = Min. VIN = VIH or VIL VCC = 3V VIN = VIH or VIL IOS VH ICCL ICCH ICCZ Short Circuit Current(4) Input Hysteresis Quiescent Power Supply Current VCC = Max., VO = GND(3) -- VCC = Max., VIN = GND or VCC -60 -- -- -135 150 0.1 -240 -- 10 mA mV A IOL = 0.1mA IOL = 16mA IOL = 24mA IOL = 24mA -- -- -- -- 0.2 0.3 0.3 0.2 0.4 0.55 0.5 V IOH = -0.1mA IOH = -3mA IOH = -8mA VCC = Max. VCC = Max. VI = 5.5V VI = VCC VI = GND VI = GND VO = VCC VO = GND -- -- -- -- -- -- -- -36 50 VCC-0.2 2.4 2.4(5) -- -- -- -- -- -- -0.7 -60 90 -- 3 3 1 1 1 1 1 1 -1.2 -110 200 -- -- -- V mA mA V A A Guaranteed Logic LOW Level Test Conditions(1) Guaranteed Logic HIGH Level Min. 2 2 -0.5 Typ.(2) -- -- -- Max. 5.5 Vcc+0.5 0.8 V Unit V
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 = 3.3V, +25C ambient and maximum loading. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. This parameter is guaranteed but not tested. 5. VOH = VCC - 0.6V at rated current.
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IDT74FCT3827A/B 3.3V CMOS 10-BIT BUFFER
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current Dynamic Power Supply Current(4) VCC = Max. VCC = Max. Outputs Open OE1 = OE2 = GND One Input Toggling 50% Duty Cycle IC Total Power Supply Current(6) VCC = Max. Outputs Open fI = 10MHz 50% Duty Cycle OE1 = OE2 = GND One Bit Toggling VCC = Max. Outputs Open fI = 2.5MHz 50% Duty Cycle OE1 = OE2 = GND Eight Bits Toggling VIN = VCC VIN = GND VIN = VCC - 0.6V VIN = GND VIN = VCC VIN = GND VIN = VCC - 0.6V VIN = GND -- 0.6 0.9 mA Test Conditions(1) VIN = VCC - 0.6V VIN = VCC VIN = GND Min. -- -- Typ.(2) 2 60 Max. 30 85 Unit A A/ MHz
--
0.6
0.9
--
1.5
2.1(5)
--
1.5
2.3(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 = 3.3V, +25C ambient. 3. Per TTL driven input. 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 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 (ICC, ICCH, and ICCZ) ICC = Power Supply Current for a TTL High Input 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
SWITCHING CHARACTERISTICS OVER OPERATING RANGE(1)
74FCT3827A Symbol tPLH tPHL Parameter Propagation Delay Dx to Yx Condition(2) CL = 50pF RL = 500 CL = 300pF(1) RL = 500 CL = 50pF RL = 500 CL = 300pF(1) RL = 500 CL = 5pF(1) RL = 500 CL = 50pF RL = 500 Min.(3) 1.5 1.5 1.5 1.5 1.5 1.5 Max. 8 15 12 23 9 10 74FCT3827B Min.(3) Max. 1.5 5 1.5 1.5 1.5 1.5 1.5 13 8 15 6 7 ns ns Unit ns
tPZH tPZL
Output Enable Time OEx to Yx
tPHZ tPLZ
Output Disable Time OEx to Yx
NOTES: 1. Propagation Delays and Enable/Disable times are with VCC = 3.3V 0.3V, Normal Range. For VCC = 2.7V to 3.6V, Extended Range, all Propagation Delays and Enable/ Disable times should be degraded by 20%. 2. See test circuit and waveforms. 3. Minimum limits are guaranteed but not tested on Propagation Delays.
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IDT74FCT3827A/B 3.3V CMOS 10-BIT BUFFER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
V CC 500 VIN Pulse Generator RT D.U.T. 50pF CL 500 VOUT 6v Open GND
SWITCH POSITION
Test Open Drain Disable Low Enable Low Disable High Enable High All Other Tests Switch 6V GND Open
Test Circuits for All Outputs
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC.
tSU
tH
tREM
3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE
1.5V
1.5V
tSU
tH
Pulse Width
Set-Up, Hold, and Release Times
ENABLE CONTROL INPUT SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL 3V 1.5V 0V VOH 1.5V VOL 3V 1.5V 0V tPZL OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH SWITCH 6V tPZH SWITCH GND 1.5V 0V 3V 1.5V tPHZ
DISABLE 3V 1.5V tPLZ 0V 3V 0.3V 0.3V VOL VOH 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. 3. If Vcc is below 3V, input voltage swings should be adjusted not to exceed Vcc.
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IDT74FCT3827A/B 3.3V CMOS 10-BIT BUFFER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT XX Temp. Range FCT X Family XX Device Type X Package
SO Q
Small Outline IC Quarter-size Small Outline Package
827A 827B 3
10-Bit Buffer
3.3 Volt
74
- 40C to +85C
CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054
for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com
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for Tech Support: logichelp@idt.com (408) 654-6459

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