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參數(shù)資料
| 型號： | SN74CB3Q3345PWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | CB3Q/3VH/3C/2B SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | GREEN, PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 13/18頁 |
| 文件大?。?/td> | 652K |
| 代理商： | SN74CB3Q3345PWR |
www.ti.com
Recommended Operating Conditions
(1)
Electrical Characteristics
(1)
SN74CB3Q3345
8-BIT FET BUS SWITCH
2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH
SCDS144B – OCTOBER 2003 – REVISED MARCH 2005
MIN
MAX
UNIT
VCC
Supply voltage
2.3
3.6
V
VCC = 2.3 V to 2.7 V
1.7
5.5
VIH
High-level control input voltage
V
VCC = 2.7 V to 3.6 V
2
5.5
VCC = 2.3 V to 2.7 V
0
0.7
VIL
Low-level control input voltage
V
VCC = 2.7 V to 3.6 V
0
0.8
VI/O
Data input/output voltage
0
5.5
V
TA
Operating free-air temperature
–40
85
°C
(1)
All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP(2)
MAX
UNIT
VIK
VCC = 3.6 V,
II = –18 mA
–1.8
V
IIN
Control inputs
VCC = 3.6 V,
VIN = 0 to 5.5 V
±1
A
VO = 0 to 5.5 V,
Switch OFF,
IOZ(3)
VCC = 3.6 V,
±1
A
VI = 0,
VIN = VCC or GND
Ioff
VCC = 0,
VO = 0 to 5.5 V,
VI = 0
1
A
II/O = 0,
ICC
VCC = 3.6 V,
VIN = VCC or GND
0.7
2
mA
Switch ON or OFF,
I
CC
(4)
Control inputs
VCC = 3.6 V,
One input at 3 V,
Other inputs at VCC or GND
30
A
VCC = 3.6 V,
A and B ports open,
Per control
mA/
ICCD(5)
0.13
0.14
input
MHz
Control input switching at 50% duty cycle
Cin
Control inputs
VCC = 3.3 V,
VIN = 5.5 V, 3.3 V, or 0
2.5
3.5
pF
Switch OFF,
Cio(OFF)
VCC = 3.3 V,
VI/O = 5.5 V, 3.3 V, or 0
3.5
5
pF
VIN = VCC or GND,
Switch ON,
Cio(ON)
VCC = 3.3 V,
VI/O = 5.5 V, 3.3 V, or 0
9
11.5
pF
VIN = VCC or GND,
VI = 0,
IO = 30 mA
4
8
VCC = 2.3 V,
TYP at VCC = 2.5 V
VI = 1.7 V,
IO = –15 mA
4.5
9
ron(6)
VI = 0,
IO = 30 mA
4
6
VCC = 3 V
VI = 2.4 V,
IO = –15 mA
4.5
8
(1)
VIN and IIN refer to control inputs. VI, VO, II, and IO refer to data pins.
(2)
All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C.
(3)
For I/O ports, the parameter IOZ includes the input leakage current.
(4)
This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND.
(5)
This parameter specifies the dynamic power-supply current associated with the operating frequency of a single control input (see
Figure 2).
(6)
Measured by the voltage drop between the A and B terminals at the indicated current through the switch. ON-state resistance is
determined by the lower of the voltages of the two (A or B) terminals.
4
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