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| 型号： | FXL4T245BQX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 2/9页 |
| 文件大小： | 0K |
| 描述： | TRANSLATOR 4BIT DUAL LV 14DQFN |
| 产品培训模块： | Logic Translator Solutions |
| 特色产品： | FXL4T245BQX - Low Voltage Dual Supply 4-Bit Signal Translator |
| 标准包装： | 1 |
| 逻辑功能： | 变换器，双向，3 态 |
| 位数： | 4 |
| 输入类型： | 电压 |
| 输出类型： | 电压 |
| 通道数： | 1 |
| 输出/通道数目： | 1 |
| 差分 - 输入:输出： | 无/无 |
| 传输延迟（最大）： | 3.5ns |
| 电源电压： | 1.1 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 14-WFQFN 裸露焊盘 |
| 供应商设备封装： | 14-DQFN |
| 包装： | 标准包装 |
| 产品目录页面： | 1223 (CN2011-ZH PDF) |
| 其它名称： | FXL4T245BQXDKR |
www.fairchildsemi.com
2
FXL4T245
Terminal Descriptions
Truth Table
H
= HIGH Voltage Level
L
= LOW Voltage Level
X
= Don’t Care
Connection Diagram
Terminal Assignments for DQFN
(Top View)
Terminal Assignment
Power-Up/Power-Down Sequencing
FXL translators offer an advantage in that either VCC may
be powered up first. This benefit derives from the chip
design. When either VCC is at 0 volts, outputs are in a
HIGH-Impedance state. The control inputs (T/R and OE)
are designed to track the VCCA supply. A pull-up resistor
tying OE to VCCA should be used to ensure that bus con-
tention, excessive currents, or oscillations do not occur
during power-up/power-down. The size of the pull-up resis-
tor is based upon the current-sinking capability of the OE
driver.
The recommended power-up sequence is the following:
1. Apply power to either VCC.
2. Apply power to the T/R input (Logic HIGH for A-to-B
operation; Logic LOW for B-to-A operation) and to the
respective data inputs (A Port or B Port). This may
occur at the same time as Step 1.
3. Apply power to other VCC.
4. Drive the OE input LOW to enable the device.
The recommended power-down sequence is the following:
1. Drive OE input HIGH to disable the device.
2. Remove power from either VCC.
3. Remove power from other VCC.
Terminal
Names
Description
OE
Output Enable Input
T/R
Transmit/Receive Input
An
Side A Inputs or 3-STATE Outputs
Bn
Side B Inputs or 3-STATE Outputs
VCCA
Side A Power Supply
VCCB
Side B Power Supply
GND
Ground
Inputs
Outputs
OE
T/R
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
Terminal Number
Terminal Name
1VCCA
2A0
3A1
4A2
5A3
6T/R
7GND
8GND
9OE
10
B3
11
B2
12
B1
13
B0
14
VCCB
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FXL4TD245 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Low Voltage Dual Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE |
| FXL4TD245BQX | 功能描述:总线收发器 LV Dual Supply 4-Bit Signal Translator RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| FXL4TD245UMX | 功能描述:总线收发器 Low Voltage;2xSupply 4-Bit Signal Trnsltr RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| FXL5T244 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Low Voltage Dual Supply 5-Bit Signal Translator with Configurable Voltage Supplies with Configurable Voltage Supplies |
| FXL5T244BQX | 功能描述:转换 - 电压电平 Dual Supply 5-Bit Signal Translator RoHS:否 制造商:Micrel 类型:CML/LVDS/LVPECL to LVCMOS/LVTTL 传播延迟时间:1.9 ns 电源电流:14 mA 电源电压-最大:3.6 V 电源电压-最小:3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MLF-8 |
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