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参数资料
| 型号： | 74LCX245WMX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 6/11页 |
| 文件大小： | 0K |
| 描述： | IC TRANSCVR BIDIR 8BIT 20SOIC |
| 标准包装： | 1 |
| 系列： | 74LCX |
| 逻辑类型： | 收发器，非反相 |
| 元件数： | 1 |
| 每个元件的位元数： | 8 |
| 输出电流高，低： | 24mA，24mA |
| 电源电压： | 2 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 标准包装 |
| 产品目录页面： | 1211 (CN2011-ZH PDF) |
| 其它名称： | 74LCX245WMXDKR |
2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FST3125 Rev. 1.0.3
4
FST3125
—
4-
B
it
B
u
s
Swit
ch
DC Electrical Characteristics
Typical values are at VCC = 5.0V and TA = 25°C.
TA=-40 to +85°C
Symbol
Parameter
Conditions
VCC (V)
Min.
Typ.
Max.
Units
VIK
Clamp Diode Voltage
IIN = -18mA
4.5
-1.2
V
VIH
High-Level Input Voltage
4.0 to 5.5
2.0
V
VIL
Low-Level Input Voltage
4.0 to 5.5
0.8
V
IIN
Input Leakage Current
0
≤ V
IN ≤ 5.5
5.5
±1.0
A
IOZ
Off-state Leakage
Current
0
≤ A, B ≤ V
CC
5.5
±1.0
A
VIN = 0V, IIN = 64mA
4.5
4
7
VIN = 0V, IIN = 30mA
4.5
4
7
VIN = 2.4V, IIN = 15mA
4.5
8
15
RON
Switch On Resistance
(3)
VIN = 2.4V, IIN = 15mA
4.0
11
20
Ω
ICC
Quiescent Supply Current
VIN = VCC or GND,
IOUT = 0
5.5
3
A
ΔI
CC
Increase in ICC per Input
One Input at 3.4V, Other
Inputs at VCC or GND
5.5
2.5
mA
Note:
3.
Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance
is determined by the lower of the voltages on the A or B pins.
AC Electrical Characteristics
TA = -40 to +85°C, CL = 50pF, and RU = RD = 500Ω.
VCC = 4.5 – 5.5V
VCC = 4.0V
Symbol
Parameter
Conditions
Min.
Max.
Min.
Max.
Units
Figure
tPHL, tPLH
Propagation Delay
Bus-to-Bus
(4)
VIN = Open
0.25
ns
Figure 4
Figure 5
tPZH ,tPZL
Output Enable Time
VIN = 7V for tPZL
VIN = Open for
tPZH
1.0
5.0
5.5
ns
Figure 4
Figure 5
tPHZ, tPLZ
Output Disable Time
VIN = 7V for tPLZ
VIN = Open for
tPHZ
1.5
5.3
5.6
ns
Figure 4
Figure 5
Note:
4.
This parameter is guaranteed by design, but is not tested. The bus switch contributes no propagation delay
other than the RC delay of the typical on resistance of the switch and the 50pF load capacitance when driven by
an ideal voltage source (zero output impedance).
Capacitance
TA = +25°C, f = 1MHz. Capacitance is characterized, but not tested.
Symbol
Parameter
Conditions
Typ.
Units
CIN
Control Pin Input Capacitance
VCC = 5.0V
3
pF
CI/O
Input/Output Capacitance
VCC, /OE = 5.0V
2
pF
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相关代理商/技术参数 |
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| 74LCX245WMX_NL | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs |
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| 74LCX257M | 功能描述:编码器、解码器、复用器和解复用器 Qd 2-Inp Multiplexer RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| 74LCX257M | 制造商:Fairchild Semiconductor Corporation 功能描述:IC DECODERS/ENCODERS/MULTIPLEXERS/DEMUL |
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