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CY74FCT16646ATPVC 数据表(PDF) 5 Page - Texas Instruments

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部件名 CY74FCT16646ATPVC
功能描述  16-Bit Registered Transceivers
PDF  9 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

CY74FCT16646ATPVC 数据表(HTML) 5 Page - Texas Instruments

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CY74FCT16646T
CY74FCT162646T
5
Capacitance (TA = +25˚C, f = 1.0 MHz)
Symbol
Description[8]
Conditions
Typ.
Max.
Unit
CIN
Input Capacitance
VIN = 0V
4.5
6.0
pF
COUT
Output Capacitance
VOUT =0V
5.5
8.0
pF
Power Supply Characteristics
Parameter
Description
Test Conditions[10]
Min.
Typ.[5]
Max.
Unit
ICC
Quiescent Power Supply Current
VCC=Max.
VIN<0.2V
VIN>VCC−0.2V
—
5
500
µA
∆I
CC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC = Max.
VIN=3.4V
[11]
—
0.5
1.5
mA
ICCD
Dynamic Power Supply
Current[12]
VCC=Max.
Outputs Open
DIR=OE=GND
One-Bit Toggling
50% Duty Cycle
VIN=VCC or
VIN=GND
—
75
120
µA/MHz
IC
Total Power Supply Current[13]
VCC=Max.
Outputs Open
fo=10 MHz (CLKBA)
50% Duty Cycle
DIR=OE=GND
One-Bit Toggling
f1=5 MHz
50% Duty Cycle
VIN=VCC or
VIN=GND
—
0.8
1.7
mA
VIN=3.4V or
VIN=GND
—
1.3
3.2
VCC=Max.
Outputs Open
fo=10 MHz (CLKBA)
50% Duty Cycle
DIR=OE=GND
Sixteen-Bits Toggling
f1=2.5 MHz
50% Duty Cycle
VIN=VCC or
VIN=GND
—
3.8
6.5[14]
VIN=3.4V or
VIN=GND
—
8.3
20.0[14]
Notes:
10. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
11. Per TTL driven input (VIN=3.4V); all other inputs at VCC or GND.
12. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
13. IC
=IQUIESCENT + IINPUTS + IDYNAMIC
IC
=ICC+∆ICCDHNT+ICCD(f0/2 + f1N1)
ICC
= Quiescent Current with CMOS input levels
∆I
CC
= 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)
f0
= Clock frequency for registered devices, otherwise zero
f1
= Input signal frequency
N1
= Number of inputs changing at f1
All currents are in milliamps and all frequencies are in megahertz.
14. Values for these conditions are examples of the ICC formula. These limits are specified but not tested.



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