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 3.3V CMOS 16-BIT BUS TRANSCEIVER/ REGISTERS
Integrated Device Technology, Inc.
IDT74FCT163646/A/C
FEATURES:
* 0.5 MICRON CMOS Technology * Typical tSK(o) (Output Skew) < 250ps * 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 and 15.7 mil pitch TVSOP * Extended commercial range of -40C to +85C * VCC = 3.3V 0.3V, Normal Range or VCC = 2.7 to 3.6V, Extended Range * CMOS power levels (0.4W typ. static) * Rail-to-Rail output swing for increased noise margin * Low Ground Bounce (0.3V typ.) * Inputs (except I/O) can be driven by 3.3V or 5V components
DESCRIPTION:
The FCT163646/A/C 16-bit registered transceivers are built using advanced dual metal CMOS technology. These high-speed, low-power devices are organized as two independant 8-bit bus transceivers with 3-state D-type registers. The control circuitry is organized for multiplexed transmission of data between A bus and B bus either directly or from the internal storage registers. Each 8-bit transceiver/register features direction control (xDIR), over-riding Output Enable control (xOE) and Select lines (xSAB and xSBA) to select either real-time data or stored data. Separate clock inputs are provided for A and B port registers. Data on the A or B data bus, or both, can be stored in the internal registers by the LOW-to-HIGH transitions at the appropriate clock pins. Flowthrough organization of signal pins simplifies layout. All inputs are designed with hysteresis for improved noise margin. The FCT163646/A/C have series current limiting resistors. This offers low ground bounce, minimal undershoot, and controlled output fall times-reducing the need for external series terminating resistors.
FUNCTIONAL BLOCK DIAGRAM
1OE 1DIR 1CLKBA 1SBA 1CLKAB 1SAB B REG
2OE 2DIR 2CLKBA 2SBA 2CLKAB 2SAB B REG
D C
1A1 A REG 1B1 2A1 A REG
D C
2B1
D C
D C
TO 7 OTHER CHANNELS
2778 drw 01
TO 7 OTHER CHANNELS
2778 drw 02
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGES
(c)1996 Integrated Device Technology, Inc.
AUGUST 1996
8.8
DSC-2778/6
1
IDT74FCT163646/A/C 3.3V 16-BIT BUS TRANSCEIVER/REGISTERS
COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
1DIR
1CLKAB 1SAB
PIN DESCRIPTION
1OE 1CLKBA 1SBA
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 SO56-1 43 SO56-2 SO56-3 42 41 40 39 38 37 36 35 34 33 32 31 30 29
Pin Names xAx xBx xCAB, xCBA
Description Data Register A Inputs Data Register B Outputs Data Register B Inputs Data Register A Outputs Clock Pulse Inputs Output Data Source Select Inputs Output Enable Inputs
2778 tbl 01
GND
1A1 1A2
GND
1B1 1B2
xSAB, xSBA xDIR, xOE
VCC
1A3 1A4 1A5
VCC
1B3 1B4 1B5
ABSOLUTE MAXIMUM RATINGS
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
(1)
Unit V V V C mA
Max. -0.5 to +4.6 -0.5 to +7.0 -0.5 to VCC + 0.5 -65 to +150 -60 to +60
GND
1A6 1A7 1A8 2A1 2A2 2A3
GND
1B6 1B7 1B8 2B1 2B2 2B3
GND
2A4 2A5 2A6
GND
2B4 2B5 2B6
2778 lnk 03 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. Output and I/O terminals.
CAPACITANCE (TA = +25C, f = 1.0MHz)
Symbol Parameter(1) CIN Input Capacitance CI/O I/O Capacitance Conditions VIN = 0V VOUT = 0V Typ. 3.5 3.5 Max. Unit 6.0 pF 8.0 pF
VCC
2A7 2A8
VCC
2B7 2B8
2778 lnk 04 NOTE: 1. This parameter is measured at characterization but not tested.
GND
2SAB 2CLKAB 2DIR
GND
2SBA 2CLKBA 2OE
SSOP/ TSSOP/TVSOP TOP VIEW
2778 drw 03
8.8
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IDT74FCT163646/A/C 3.3V 16-BIT BUS TRANSCEIVER/REGISTERS
COMMERCIAL TEMPERATURE RANGES
FUNCTION TABLE(2)
Inputs xOE OE H H L L L L xDIR X X L L H H xCLKAB xCLKBA H or L X X X H or L H or L X H or L X X xSAB X X X X L H xSBA X X L H X X xAx Input Output Input Data I/O(1) xBx Input Input Output Isolation Store A and B Data 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
2778 tbl 02
Operation or Function
NOTES: 1. The data output functions may be enabled or disabled by various signals at the xOE or xDIR 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 clock inputs. 2. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care =LOW-to-HIGH Transition
8.8
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IDT74FCT163646/A/C 3.3V 16-BIT BUS TRANSCEIVER/REGISTERS
COMMERCIAL TEMPERATURE RANGES
BUS A
BUS B
BUS A
BUS B
2778 drw 05
2778 drw 06
xDIR
xOE
xCLKAB
xCLKBA
xSAB
xSBA
xDIR
xOE
xCLKAB
xCLKBA
xSAB
xSBA
L
L
X
X
X
L
H
L
X
X
L
X
REAL-TIME TRANSFER BUS B TO A
REAL-TIME TRANSFER BUS A TO B
BUS A
BUS B
BUS A
BUS B
2778 drw 07
2778 drw 08
xDIR
xOE
xCLKAB
xCLKBA
xSAB
xSBA
xDIR
(1)
xOE
xCLKAB
xCLKBA
xSAB
xSBA
H L X
L L H
X
X
X X X
X X X
L H
L L
X H or L
H or L X
X H
H X
STORAGE FROM A AND/OR B
TRANSFER STORED DATA TO A AND/OR B NOTE: 1. Cannot transfer data to A bus and B bus simultaneously.
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IDT74FCT163646/A/C 3.3V 16-BIT BUS TRANSCEIVER/REGISTERS
COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Commercial: TA = -40C to +85C, VCC = 2.7V to 3.6V
Symbol VIH VIL II H II L 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 = Max. VCC = Max. VI = 5.5V VI = VCC VI = GND VI = GND VO = VCC VO = GND 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 = 3.0V VIN = VIH or VIL VCC = Min. VIN = VIH or VIL IOH = -0.1mA IOH = -3mA IOH = -8mA IOL = 0.1mA IOL = 16mA IOL = 24mA VCC = 3.0V IOL = 24mA VIN = VIH or VIL VCC = Max., VO = GND(3)
--
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level
Min. 2.0 2.0 -0.5 -- -- -- -- -- -- -- -36 50 VCC-0.2 2.4 2.4 (5) -- -- -- -- -60 -- --
Typ.(2) -- --
--
Max. 5.5 VCC+0.5 0.8
Unit V V
-- -- -- -- -- -- -0.7
1 1 1 1 1 1
-1.2
A
A
V mA mA V
-60 90 -- 3.0 3.0 -- 0.2 0.3 0.3
-135
-110 200 -- -- -- 0.2 0.4 0.55 0.50 -240
--
VOL
Output LOW Voltage
V
IOS VH ICCL ICCH ICCZ
Short Circuit Current(4) Input Hysteresis Quiescent Power Supply Current
mA mV
150 0.1
VCC = Max., VIN = GND or VCC
10
A
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 = 3.3V, +25C ambient. 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.
2778 lnk 05
8.8
5
IDT74FCT163646/A/C 3.3V 16-BIT BUS TRANSCEIVER/REGISTERS
COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) VCC = Max. Test Conditions(1) VIN = VCC
- 0.6V (3)
Min. -- --
Typ.(2) 2.0 60
Max. 30 100
Unit A A/ MHz
VCC = Max. Outputs Open xDIR = xOE= GND 50% Duty Cycle One Input Toggling VCC = Max. Outputs Open fCP = 10MHz (xCLKBA) 50% Duty Cycle xDIR = xOE = GND fi = 5MHz 50% Duty Cycle One Bit Toggling VCC = Max. Outputs Open fCP = 10MHz (xCLKBA) 50% Duty Cycle xDIR = xOE = GND fi = 2.5MHz 50% Duty Cycle Sixteen Bits Toggling
VIN = VCC VIN = GND
IC
Total Power Supply Current (6)
VIN = VCC VIN = GND
--
0.6
1.0
mA
VIN = VCC -0.6V VIN = GND VIN = VCC VIN = GND
--
0.6
1.0
--
3.0
5.0 (5)
VIN = VCC -0.6V VIN = GND
--
3.0
5.3 (5)
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 = 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 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 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
2778 tbl 06
8.8
6
IDT74FCT163646/A/C 3.3V 16-BIT BUS TRANSCEIVER/REGISTERS
COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE(4)
FCT163646 Symbol Parameter Condition(1) Min.(2) Max. FCT163646A Min.(2) Max. FCT163646C Min.(2) Max. Unit
tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPLH tPHL tSU tH tW tSK(o)
Propagation Delay Bus to Bus Output Enable Time xDIR or xOE to Bus Output Disable Time xDIR or xOE to Bus Propagation Delay Clock to Bus Propagation Delay xSBA or xSAB to Bus Set-up Time HIGH or LOW Bus to Clock Hold Time HIGH or LOW Bus to Clock Clock Pulse Width HIGH or LOW Output Skew (3)
CL = 50pF RL = 500
2.0 2.0 2.0 2.0 2.0 4.0 2.0 6.0 --
9.0 14.0 9.0 9.0 11.0 -- -- -- 0.5
2.0 2.0 2.0 2.0 2.0 2.0 1.5 5.0 --
6.3 9.8 6.3 6.3 7.7 -- -- -- 0.5
1.5 1.5 1.5 1.5 1.5 2.0 1.5 5.0 --
5.4 7.8 6.3 5.7 6.2 -- -- -- 0.5
ns ns ns ns ns ns ns ns ns
2778 tbl 07 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. 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%.
8.8
7
IDT74FCT163646/A/C 3.3V 16-BIT BUS TRANSCEIVER/REGISTERS
COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS TEST CIRCUITS FOR ALL OUTPUTS
6V V
CC
SWITCH POSITION
Open GND
500 V Pulse Generator R
T IN
V D.U.T.
OUT
Test Open Drain Disable Low Enable Low Disable High Enable High All Other tests
Switch 6V
50pF C
L
500
SET-UP, HOLD AND RELEASE TIMES
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. tSU
tH
tREM
tSU
tH
PROPAGATION DELAY
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
GND Open
2778 lnk 08 DEFINITIONS: CL= Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
2778 drw 09
PULSE WIDTH
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
2778 drw 11
2778 drw 10
ENABLE AND DISABLE TIMES
ENABLE CONTROL INPUT tPZL OUTPUT NORMALLY SWITCH 6V LOW tPZH OUTPUT NORMALLY HIGH SWITCH GND 3V 1.5V tPHZ 0.3V 1.5V 0V 0V
2778 drw 13
DISABLE 3V 1.5V tPLZ 0V 3V 0.3V VOL VOH
2778 drw 12
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.
8.8
8
IDT74FCT163646/A/C 3.3V 16-BIT BUS TRANSCEIVER/REGISTERS
COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT XX FCT XXXX Temp. Range Device Type X Package
PV PA PF 163646 163646A 163646C 74
Shrink Small Outline Package (SO56-1) Thin Shrink Small Outline Package (SO56-2) Thin Very Small Outline Package (SO56-3) Non-Inverting 16-Bit Transceiver/ Register
-40C to +85C
2778 drw 14
8.8
9


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