參數(shù)資料
型號： FXL4245
廠商： Fairchild Semiconductor Corporation
英文描述： Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs
中文描述： 低電壓雙電源，8位信號翻譯可配置電壓用品和信號水平和三態(tài)輸出
文件頁數(shù)： 2/9頁
文件大?。?/td> 549K
代理商： FXL4245
www.fairchildsemi.com
2
F
Terminal Descriptions
Truth Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Don’t Care
Connection Diagram
Terminal Assignments for MLP
(Top View)
Terminal Assignment
Power-Up/Power-Down Sequencing
FXL translators offer an advantage in that either V
CC
may
be powered up first. This benefit derives from the chip
design. When either V
CC
is at 0 volts, outputs are in a
HIGH-Impedance state. The control inputs (T/R and OE)
are designed to track the V
CCA
supply. A pull-up resistor
tying OE to V
CCA
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 V
CC
.
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 V
CC
.
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 V
CC
.
3. Remove power from other V
CC
.
Terminal
Names
Description
OE
Output Enable Input
T/R
Transmit/Receive Input
A
0
–
A
7
B
0
–
B
7
V
CCA
V
CCB
GND
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Side A Power Supply
Side B Power Supply
Ground
Inputs
Outputs
OE
T/R
L
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
3-STATE
Terminal Number
1
Terminal Name
V
CCA
T/R
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
GND
Terminal Number
13
Terminal Name
GND
2
3
4
5
6
7
8
9
14
15
16
17
18
19
20
21
B
7
B
6
B
5
B
4
B
3
B
2
B
1
B
0
OE
V
CCB
V
CCB
10
11
12
22
23
24
相關PDF資料
PDF描述
FXL4245MPX Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs
FXL4T245 Low Voltage Dual Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs
FXL4T245BQX Low Voltage Dual Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs
FXL5T244 Low Voltage Dual Supply 5-Bit Signal Translator with Configurable Voltage Supplies with Configurable Voltage Supplies
FXL5T244BQX Low Voltage Dual Supply 5-Bit Signal Translator with Configurable Voltage Supplies with Configurable Voltage Supplies
相關代理商/技術參數(shù)
參數(shù)描述
FXL4245_10 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Low-Voltage, Dual-Supply, 8-Bit, Signal Translator with Configurable Voltage Supplies, Signal Levels, and 3-State Outputs
FXL4245MPX 功能描述:總線收發(fā)器 Dual Supply 8-Bit Signal Translator RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
FXL4245MPX-CUT TAPE 制造商:FAIRCHILD 功能描述:FXL4245 Series 3.6 V Low Voltage Dual Supply 8-Bit Signal Translator - MLP-24
FXL4T245 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Low Voltage Dual Supply 4-Bit Signal Translator with Configurable Voltage Supplies and Signal Levels and 3-STATE Outputs
FXL4T245BQX 功能描述:轉換 - 電壓電平 Dual Supply 4-Bit Signal Translator RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MLF-8
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