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參數(shù)資料
| 型號： | FXL2TD245L10X |
| 廠商： | Fairchild Semiconductor |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | TRANSLATOR 2BIT LV DL 10MICROPAK |
| 產(chǎn)品培訓(xùn)模塊： | Logic Translator Solutions |
| 產(chǎn)品變化通告： | Die Material, Mold Compound Change 03/Oct/2008 |
| 標準包裝： | 1 |
| 邏輯功能： | 變換器，3 態(tài) |
| 位數(shù)： | 2 |
| 輸入類型： | 電壓 |
| 輸出類型： | 電壓 |
| 通道數(shù)： | 1 |
| 輸出/通道數(shù)目： | 2 |
| 差分 - 輸入:輸出： | 無/無 |
| 傳輸延遲（最大）： | 3.5ns |
| 電源電壓： | 1.1 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 10-UFQFN |
| 供應(yīng)商設(shè)備封裝： | 10-MicroPak? |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 1219 (CN2011-ZH PDF) |
| 其它名稱： | FXL2TD245L10XDKR |
2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FXL2TD245 Rev. 1.0.4
2
FXL2TD245
Lo
w
V
olta
g
e
Dual
Suppl
y
2-Bit
Signal
T
ranslator
with
Congurab
le
V
olta
g
e
Supplies
and
Signal
Le
vels
and
3-ST
A
TE
Outputs
and
Independent
Direction
Contr
ols
Functional Diagram
Connection Diagram
(Top View)
Pin Assignment
Pin Descriptions
Truth Table
H
= HIGH Voltage Level
L
= LOW Voltage Level
X
= Don't Care
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/Rn and
OE) are designed to track the VCCA supply. A pull-up
resistor tying OE to VCCA should be used to ensure that
bus contention, excessive currents, or oscillations do not
occur during power-up/power-down. The size of the pull-
up resistor 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/Rn inputs (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 follow-
ing:
1. Drive OE input HIGH to disable the device.
2. Remove power from either VCC.
3. Remove power from other VCC.
Pin Number
Terminal Name
1VCCA
2A0
3A1
4
T/R0
5
GND
6
T/R1
7OE
8B1
9B0
10
VCCB
VCCA
A0
A1
T/R0
OE
T/R1
VCCB
B0
B1
9
8
7
6
2
10
1
VCCA
A0
A1
T/R0
B0
VCCB
GND
B1
OE
T/R1
5
3
4
Pin Names
Description
OE
Output Enable Input
T/Rn
Transmit/Receive Inputs
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
Inputs
Outputs
OE
T/R0 T/R1
LL
X
B0 Data to A0 Output
LH
X
A0 Data to B0 Output
LXL
B1 Data to A1 Output
LX
H
A1 Data to B1 Output
HX
X
3-STATE
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