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參數(shù)資料
| 型號： | IDQS34X245Q3G |
| 廠商： | Integrated Device Technology, Inc. |
| 英文描述： | QUICKSWITCH-R PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH-TM BUS SWITCHES |
| 中文描述： | QUICKSWITCH - R產(chǎn)品高速的CMOS QUICKSWITCH 32位MULTIWIDTH -商標總線開關(guān) |
| 文件頁數(shù)： | 4/5頁 |
| 文件大小： | 56K |
| 代理商： | IDQS34X245Q3G |
4
INDUSTRIAL TEMPERATURE RANGE
IDTQS34X245
HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
I
CCQ
Quiescent Power Supply Current
I
CC
Power Supply Current per Control Input HIGH
(2)
I
CCD
Dynamc Power Supply Current per MHz
(3)
Test Conditions
(1)
Max.
12
1.5
0.25
Unit
μ
A
mA
V
CC
= Max., V
IN
= GND or Vcc, f = 0
V
CC
= Max., V
IN
= 3.4V, f = 0
V
CC
= Max., A and B pins open
Control Inputs Toggling at 50% Duty Cycle
mA/MHz
NOTES:
1. For conditions shown as Mn. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TLL driven input (V
IN
= 3.4V, control inputs only). A and B pins do not contribute to
Icc.
3. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant
AC or DC currents as they transition. This parameter is guaranteed but not production tested.
SWITCHING CHARACTERISTICS OV ER OPERATING RANGE
T
A
= -40°C to +85°C, V
CC
= 5.0V ± 5%;
C
LOAD
= 50pF, R
LOAD
= 500
unless otherwise noted.
Symbol
t
PLH
t
PHL
t
PZL
t
PZH
t
PLZ
t
PHZ
Parameter
Mn.
(1)
—
Typ.
—
Max.
0.25
Unit
Data Propagation Delay
(1,2)
An to/fromBn
Switch Turn-on Delay
OE
to An/Bn
Switch Turn-off Delay
(1)
OE
to An/Bn
ns
0.5
—
5.6
ns
0.5
—
5.2
ns
NOTES:
1.
Mnimums are guaranteed but not production tested.
2. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone
is of the order of 0.25ns for C
L
= 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to
the system Propagation delay of the bus switch, when used in a system is determned by the driving circuit on the driving side of the switch and its interaction with the load
on the driven side.
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