FXLH42245MPX [ONSEMI]
低电压双电源 8 位信号转换器，带可配置电压电源和总线保持数据输入，以及 B 端口输出中的 3 态和 26 Ω 串联电阻;
| 型号： | FXLH42245MPX |
| 厂家： | 
ONSEMI |
| 描述： | 低电压双电源 8 位信号转换器，带可配置电压电源和总线保持数据输入，以及 B 端口输出中的 3 态和 26 Ω 串联电阻 转换器 |
| 文件： | 总12页 (文件大小：494K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATA SHEET
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Low-Voltage, Dual-Supply,
8-Bit, Signal Translator with
Configurable Voltage Supplies,
Bushold Data Inputs,
3-State Outputs and 26 W
Series Resistors in the
B-Port Outputs
WQFN24, 4.5 x 3.5, 0.5P
CASE 510CE
MARKING DIAGRAM
FXLH42245
Description
$Y&Z&2&K
FXLH
42245
The FXLH42245 is a configurable dual−voltage−supply translator
designed for bi−directional voltage translation of signals between two
voltage levels. The device allows translation between voltages as high
$Y
&Z
&2
&K
= onsemi logo
= Assembly Plant Code
= 2−Digit Date Code
as 3.6 V to as low as 1.1 V. The A port tracks the V
level and the B
CCA
port tracks the V
level. Both ports are designed to accept supply
CCB
voltage levels from 1.1 V to 3.6 V. This allows for bi−directional
voltage translation over a variety of voltage levels: 1.2 V, 1.5 V, 1.8 V,
2.5 V, and 3.3 V.
= 2−Digits Lot Run Traceability Code
FXLH42245 = Specific Device Code
The device remains in 3−state until both V s reach active levels,
CC
ORDERING INFORMATION
allowing either V to be powered−up first. The device also contains
CC
power−down control circuits that place the device in 3−state if either
†
Device
Package
Shipping
V
CC
is removed.
The Transmit/Receive (T/R) input determines the direction of data
FXLH42245MPX
WQFN24
(Pb−Free)
3000 / Tape &
Reel
flow through the device. The OE input, when HIGH, disables both
the A and B ports by placing them in a 3−state condition.
The FXLH42245 is designed with the control pins (T/R and OE)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
supplied by V
.
CCA
Features
• Bi−Directional Interface between Two Levels from 1.1 V to 3.6 V
• Fully Configurable, Inputs Track V Level
CC
• Non−Preferential Power−Up; Either V May Be Powered−Up First
CC
• Outputs Remain in 3−State Until Active V Level is Reached
CC
• Outputs Switch to 3−State if Either V is at GND
CC
• Bushold on Data Inputs Eliminates the need for External
Pull−Up / Pull−Down Resistors
• 26 W Output Series Resistors on the B Port to Reduce Line Noise
• Power−Off Protection
• Control Input (T/R, OE) Levels are Referenced to V
• Packaged in 24−Pin MLP
Voltage
CCA
• ESD Protection Exceeds:
♦ 4 kV Human Body Model
(JESD22−A114 & Mil Std 883e 3015.7)
♦ 8 kV Human Body Model I/O to GND
(JESD22−A114 & Mil Std 883e 3015.7)
♦ 1 kV Charge Device Model (ESD STM 5.3)
♦ 200 V Machine Model
(JESD22−A115 & ESD STM5.2)
© Semiconductor Components Industries, LLC, 2004
1
Publication Order Number:
June, 2022 − Rev. 2
FXLH42245/D
FXLH42245
PIN CONFIGURATION
Figure 1. Pin Configuration (Top Through View)
PIN DEFINITIONS
Pin No.
Name
Description
Side−A Power Supply
1
V
CCA
2
3, 4, 5, 6, 7, 8, 9, 10
11, 12, 13
T/R
A , A , A , A , A , A , A , A
Transmit / Receive Input
Side−A Inputs or 3−State Outputs
Ground
0
1
2
3
4
5
6
7
GND
14, 15, 16, 17, 18, 19, 20, 21
22
B , B , B , B , B , B , B , B
Side−B Inputs or 3−State Outputs
Output Enable Input
7
6
5
4
3
2
1
0
OE
23, 24
V
CCB
Side−B Power Supply
TRUTH TABLE
Inputs
OE
T/R
Description
Bus B Data to Bus A
Bus A Date to Bus B
3−State
LOW Voltage Level
LOW Voltage Level
HIGH Voltage Level
LOW Voltage Level
HIGH Voltage Level
Don’t Care
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2
FXLH42245
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Supply Voltage
Condition
Min
−0.5
−0.5
−0.5
−0.5
−0.5
−0.5
−0.5
−0.5
Max
4.6
Unit
V
V
CCA
CCB
V
4.6
V
I
DC Input Voltage
I/O Port A
I/O Port B
V
V
+ 0.5
V
V
CCA
CCB
+ 0.5
Control Inputs (T/R, OE)
4.6
4.6
V
O
Output Voltage (Note 1)
Output 3−State
Output Active (A )
V
V
+ 0.5
n
CCA
CCB
Output Active (B )
+ 0.5
n
I
DC Input Diode Current
DC Output Diode Current
V < 0 V
−50
mA
mA
IK
I
I
V
O
O
< 0 V
−50
50
OK
V
> V
CC
I
/I
DC Output Source/Sink Current
50
mA
mA
°C
OH OL
I
DC V or Ground Current per Supply Pin
100
+150
4
CC
CC
T
Storage Temperature Range
−65
STG
ESD
Electrostatic Discharge
Capability
Human Body Model,
kV
JESD22−A114,
I/O to GND
8
Mil Std 883e 3015.7
Charged Device Model, JESD22−C101, STM 5.3
Machine Model, JESD22−A115, STM 5.2
1
200
V
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. I/O absolute maximum ratings must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Power Supply
Conditions
Min
1.1
0
Max
Unit
V
V
CC
Operating V
Port A
or V
CCB
3.6
CCA
V
I
Input Voltage
V
V
CCA
CCB
Port B
0
V
V
Control Input (T/R, OE)
Port A
0
CCA
I
/I
Output Current
3.0 V to 3.6 V
2.3 V to 2.7 V
1.65 V to 1.95 V
1.40 V to 1.65 V
1.1 V to 1.4. V
3.0 V to 3.6 V
2.3 V to 2.7 V
1.65 V to 1.95 V
1.40 V to 1.65 V
1.1 V to 1.4. V
24
mA
OH OL
V
CCA
18
6
2
0.5
14
8
Port B
V
CCB
Resistor Outputs
3
1
0.25
+85
10
T
A
Operating Temperature, Free Air
Input Edge Rate
−40
°C
DV/Dt
V
CCA/B
= 1.1 V to 3.6 V
ns/V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
2. All unused inputs must be held at V
or GND.
CCI
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3
FXLH42245
ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Conditions
V
(V)
V
(V)
Min
2.0
Max
Unit
CCI
CCO
V
IH
HIGH Level Input
(Note 3)
Data Inputs An, Bn
2.70 to 3.60
2.30 to 2.70
1.65 to 2.30
1.40 to 1.65
1.10 to 1.40
2.70 to 3.60
2.30 to 2.70
1.65 to 2.30
1.40 to 1.65
1.10 to 1.40
2.70 to 3.60
2.30 to 2.70
1.65 to 2.30
1.40 to 1.65
1.10 to 1.40
2.70 to 3.60
2.30 to 2.70
1.65 to 2.30
1.40 to 1.65
1.10 to 1.40
1.1 to 3.6
2.7
1.1 to 3.6
1.1 to 3.6
1.1 to 3.6
1.1 to 3.6
−
V
1.6
−
0.65 x V
−
CCI
CCI
CCI
0.65 x V
−
0.9 x V
2.0
−
Control Pins OE, T/R
−
(Referenced to V
)
CCA
1.6
−
−
0.65 x V
0.65 x V
CCA
CCA
CCA
−
0.9 x V
−
V
IL
LOW Level Input
(Note 3)
Data Inputs An, Bn
−
−
0.8
V
0.7
0.35 x V
0.35 x V
0.10 x V
0.8
−
−
CCI
CCI
CCI
−
Control Pins OE, T/R
(Referenced to V
−
)
CCA
−
0.7
0.35 x V
−
−
−
CCA
CCA
CCA
0.35 x V
0.10 x V
V
OH
HIGH Level Output
B Port
(Note 4)
1.1 to 3.6
2.7
V
to 0.2
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
V
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
= −100 mA
= −6 mA
= −8 mA
= −12 mA
= −4 mA
= −6 mA
= −8 mA
= −3 mA
= −1 mA
= −0.25 mA
= −100 mA
= −12 mA
= −18 mA
= −24 mA
= −6 mA
= −12 mA
= −18 mA
= −6 mA
= −2 mA
= −0.5 mA
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
CC0
2.2
3.0
3.0
2.4
2.2
3.0
3.0
2.3
2.3
2.0
2.3
2.3
1.8
2.3
2.3
1.7
1.65
1.65
1.4
1.25
1.05
1.4
1.1
1.1
0.75 x V
CC0
HIGH Level Output
A Port
(Note 4)
1.1 to 3.6
2.7
1.1 to 3.6
2.7
V
to 0.2
CC0
2.2
3.0
3.0
2.4
2.2
3.0
3.0
2.3
2.3
2.0
2.3
2.3
1.8
2.3
2.3
1.7
1.65
1.65
1.4
1.25
1.05
1.4
1.1
1.1
0.75 x V
CC0
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FXLH42245
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Conditions
= 100 mA
V
(V)
V
(V)
Min
−
Max
0.2
Unit
CCI
CCO
V
OL
LOW Level Output
B Port
(Note 4)
1.1 to 3.6
2.7
1.1 to 3.6
2.7
V
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
= 6 mA
−
0.4
= 8 mA
3.0
3.0
−
0.55
0.80
0.4
= 12 mA
= 6 mA
3.0
3.0
−
2.3
2.3
−
= 8 mA
2.3
2.3
−
0.6
= 3 mA
1.65
1.4
1.65
1.4
−
0.3
= 1 mA
−
0.35
= 0.25 mA
= 100 mA
= 12 mA
= 18 mA
= 24 mA
= 12 mA
= 18 mA
= 6 mA
1.1
1.1
0.3 x V
0.2
−
CC0
LOW Level Output
A Port
(Note 4)
1.1 to 3.6
2.7
1.1 to 3.6
2.7
−
−
−
−
−
−
−
−
0.4
3.0
3.0
0.4
3.0
3.0
0.55
0.4
2.3
2.3
2.3
2.3
0.6
1.65
1.4
1.65
1.4
0.3
= 2 mA
0.35
= 0.5 mA
1.1
1.1
0.3 x V
CC0
−
I
Input Leakage Current,
Control Pins
V = V or GND
CCA
1.1 to 3.6
3.6
−
1.0
mA
mA
L
I
I
Bushold Input
Minimum Drive
Current
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
= 0.8
3.0
3.0
2.3
2.3
1.65
1.65
1.4
1.4
1.1
1.1
3.6
3.6
2.7
2.7
1.95
1.95
1.6
1.6
1.4
1.4
3.0
3.0
2.3
2.3
1.65
1.65
1.4
1.4
1.1
1.1
3.6
3.6
2.7
2.7
1.95
1.95
1.6
1.6
1.4
1.4
75
−75
45
−
−
−
−
−
−
−
−
4
I(HOLD)
= 2.0
= 0.7
= 1.6
−45
25
= 0.57
= 10.7
= 0.49
= 0.91
= 0.11
= 0.99
−25
11
−11
−
−
−4
−
−
−
−
−
−
−
−
−
−
I
Bushold Input
Over−Drive
Current−to−Current
State
(Note 5)
(Note 6)
(Note 5)
(Note 6)
(Note 5)
(Note 6)
(Note 5)
(Note 6)
(Note 5)
(Note 6)
450
−450
300
−300
200
−200
120
−120
80
mA
I(OD)
−80
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FXLH42245
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Conditions
A , V or V = 0 V to 3.6 V
V
(V)
V
(V)
Min
−
Max
10
Unit
CCI
CCO
I
Power Off Leakage
Current
0
3.6
mA
OFF
n
I
O
B , V or V = 0 V to 3.6 V
3.6
0
−
10
n
I
O
I
3−State Output
A , B , OE = V
IH
3.6
0
3.6
3.6
−
10
mA
OZ
n
n
Leakage
Bn, OE = Don’t Care
(Note 7)
−
10
(V , V or GND
O
CC
V = V or V )
I
IH
IL
An, OE = Don’t Care
(Note 7)
3.6
0
−
10
I
Quiescent Supply
Current
V = V
or GND; I = 0
1.1 to 3.6
1.1 to 3.6
0
1.1 to 3.6
1.1 to 3.6
1.1 to 3.6
0
−
−
−
−
−
−
−
20
20
mA
mA
mA
CCA/B
I
CCI
O
I
CCZ
(Note 8)
I
V = V
or GND; I = 0
−10
10
CCA
I
CCA
CCB
O
1.1 to 3.6
1.1 to 3.6
0
I
V = V
I
or GND; I = 0
0
−10
10
mA
mA
CCB
O
1.1 to 3.6
3.6
DI
Increase in I per
V = 3.0
IH
3.6
500
CCA/B
CC
Input; Other Inputs at
V
CC
or GND
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. V
4. V
= the V associated with the data input under test.
CCO
CCI
CC
= the VCC associated with the output under test.
5. An external driver must source at least the specified current to switch LOW−to−HIGH.
6. An external driver must source at least the specified current to switch HIGH−to−LOW.
7. Don’t care = any valid logic level.
8. Reflects current per supply, V
or V
.
CCA
CCB
AC ELECTRICAL CHARACTERISTICS
CCA = 3.0 V to 3.6 V
V
T
A
= −40°C to +85°C
V
CCB
= 3.0 V
V
CCB
= 2.3 V
V
CCB
= 1.65 V
V
CCB
= 1.4 V
V = 1.1 V
CCB
to 3.6 V
to 2.7 V
to 1.95 V
to 1.6 V
to 1.3 V
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Symbol
, t
Parameter
Unit
t
t
Propagation
Delay A to B
0.5
3.9
0.5
4.5
0.9
5.9
1.0
7.4
1.6
22.0
ns
PLH PHL
Propagation
Delay B to A
0.2
0.7
0.5
0.4
0.2
3.5
4.8
4.0
4.3
3.7
0.2
1.0
0.5
0.4
0.2
3.8
5.1
4.0
4.4
3.7
0.3
1.5
0.5
0.9
0.2
4.0
6.7
4.0
5.2
3.7
0.5
1.5
0.5
1.7
0.2
4.3
7.1
4.0
6.8
3.7
0.8
2.0
0.5
2.0
0.2
13.0
18.0
4.0
, t
Output Enable
OE−to−B
ns
ns
PZL PZH
Output Enable
OE−to−A
t
, t
Output Enable
OE−to−B
19.0
3.7
PHZ PZL
Output Enable
OE−to−A
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FXLH42245
AC ELECTRICAL CHARACTERISTICS (continued)
VCCA = 2.3 V to 2.7 V
T
A
= −40°C to +85°C
V
CCB
= 3.0 V
V
CCB
= 2.3 V
V
CCB
= 1.65 V
V
CCB
= 1.4 V
V = 1.1 V
CCB
to 3.6 V
to 2.7 V
to 1.95 V
to 1.6 V
to 1.3 V
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Symbol
, t
Parameter
Unit
t
t
Propagation
Delay A to B
0.5
4.3
0.6
4.8
0.9
6.0
1.0
7.6
1.6
22.0
ns
PLH PHL
Propagation
Delay B to A
0.3
0.8
0.6
0.4
0.2
3.9
5.1
4.5
4.6
4.0
0.4
1.0
0.6
0.4
0.2
4.2
5.5
4.5
4.8
4.0
0.5
1.5
0.6
0.9
0.2
4.5
6.9
4.5
5.3
4.0
0.5
1.5
0.6
1.7
0.2
4.8
7.4
4.5
7.1
4.0
1.0
2.0
0.6
2.0
0.2
7.0
19.0
4.5
, t
Output Enable
OE−to−B
ns
ns
PZL PZH
Output Enable
OE−to−A
t
, t
Output Enable
OE−to−B
19.0
4.0
PHZ PZL
Output Enable
OE−to−A
VCCA = 1.65 V to 1.95 V
T
A
= −40°C to +85°C
V
CCB
= 3.0 V
V
CCB
= 2.3 V
V
CCB
= 1.65 V
V
CCB
= 1.4 V
V = 1.1 V
CCB
to 3.6 V
to 2.7 V
to 1.95 V
to 1.6 V
to 1.3 V
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Symbol
, t
Parameter
Unit
t
t
Propagation
Delay A to B
0.5
4.6
0.7
5.1
1.1
6.2
1.1
7.8
1.7
22.0
ns
PLH PHL
Propagation
Delay B to A
0.5
0.8
1.0
0.4
0.5
5.4
5.4
6.7
4.7
5.0
0.5
1.0
1.0
0.4
0.5
5.6
5.9
6.7
4.9
5.0
0.8
1.5
1.0
1.0
0.5
5.7
7.3
6.7
5.4
5.0
1.0
1.5
1.0
1.7
0.5
6.0
7.7
6.7
7.2
5.0
1.2
2.0
1.0
2.0
0.5
8.0
20.0
6.7
, t
Output Enable
OE−to−B
ns
ns
PZL PZH
Output Enable
OE−to−A
t
, t
Output Enable
OE−to−B
19.0
5.0
PHZ PZL
Output Enable
OE−to−A
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FXLH42245
AC ELECTRICAL CHARACTERISTICS (continued)
VCCA = 1.4 V to 1.6 V
T
A
= −40°C to +85°C
V
CCB
= 3.0 V
V
CCB
= 2.3 V
V
CCB
= 1.65 V
V
CCB
= 1.4 V
V = 1.1 V
CCB
to 3.6 V
to 2.7 V
to 1.95 V
to 1.6 V
to 1.3 V
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Symbol
, t
Parameter
Unit
t
t
Propagation
Delay A to B
0.7
4.8
0.8
5.3
1.2
6.4
1.3
7.9
1.7
22.0
ns
PLH PHL
Propagation
Delay B to A
0.6
1.1
1.0
0.6
1.0
6.8
5.8
7.5
4.8
6.0
0.8
1.3
1.0
0.6
1.0
6.9
6.3
7.5
5.1
6.0
0.9
1.5
1.0
1.1
1.0
7.1
7.8
7.5
5.8
6.0
1.0
2.0
1.0
2.0
1.0
7.3
8.1
7.5
7.7
6.0
1.2
2.0
1.0
2.0
0.5
9.5
20.0
7.5
, t
Output Enable
OE−to−B
ns
ns
PZL PZH
Output Enable
OE−to−A
t
, t
Output Enable
OE−to−B
18.0
6.0
PHZ PZL
Output Enable
OE−to−A
VCCA = 1.1 V to 1.3 V
T
A
= −40°C to +85°C
V
CCB
= 3.0 V
V
CCB
= 2.3 V
V
CCB
= 1.65 V
V
CCB
= 1.4 V
V = 1.1 V
CCB
to 3.6 V
to 2.7 V
to 1.95 V
to 1.6 V
to 1.3 V
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Symbol
, t
Parameter
Unit
t
t
Propagation
Delay A to B
1.0
13.8
1.0
7.8
1.0
8.4
1.0
10.4
2.0
24.0
ns
PLH PHL
Propagation
Delay B to A
1.4
1.5
2.0
1.2
2.0
22.0
12.6
22.0
15.0
15.0
1.4
1.5
2.0
0.9
2.0
22.0
9.6
1.5
1.5
2.0
1.2
2.0
22.0
10.6
22.0
8.6
1.5
2.0
2.0
2.0
2.0
22.0
11.6
22.0
10.6
12.0
2.0
2.0
2.0
3.0
2.0
24.0
24.0
22.0
21.0
12.0
, t
Output Enable
OE−to−B
ns
ns
PZL PZH
Output Enable
OE−to−A
22.0
7.6
t
, t
Output Enable
OE−to−B
PHZ PZL
Output Enable
OE−to−A
12.0
12.0
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
CAPACITANCE
Symbol
Parameter
Conditions
Typical (T = 255C)
Unit
A
C
Input Capacitance Control Pins
(OE, T/R)
V
I
= V = 3.3 V,
CCB
4
pF
IN
I/O
PD
CCA
V = 0 V or V
CCA/B
C
C
Input / Output Capacitance
V
CCA
= V
= 3.3 V,
I CCA/B
5
pF
pF
CCB
A , B Port
V = 0 V or V
n
n
Power Dissipation Capacitance
V
CCA
= V
= 3.3 V,
20
CCB
V = 0 V or V , f = 10 MHz
I
CC
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8
FXLH42245
AC LOADINGS AND WAVEFORMS
V
CC
Rtr1
OPEN
GND
t
t
t
, t
TEST
PLH PHL
DUT
, t
PZH PHZ
SIGNAL
, t
PZL PLZ
V
CC2
R
L
C
L
Figure 2. AC Test Circuit
Table 1. TEST CIRCUIT PARAMETERS
Test
Switch
t
, t
Open
PLH PHL
t
, t
V
• 2 at V
= 3.3 + 0.3 V, 2.5 V + 0.2 V,
PLZ PZL
CC0
CC0
1.8 V + 0.15 V, 1.5 V + 0.1 V, 1.2 V + 0.1 V
t
, t
GND
PHZ PZH
Table 2. AC LOAD TABLE
V
C
R
L
Rtr1
2 kW
CC0
L
1.2 V 0.1 V
1.5 V 0.1 V
1.8 V 0.15 V
2.5 V 0.2 V
3.3 V 0.3 V
15 pF
15 pF
30 pF
30 pF
30 pF
2 kW
2 kW
2 kW
500 W
500 W
500 W
500 W
500 W
500 W
9. Input t = t = 2.0 ns, 10% to 90%
10.Input t = t = 2.0 ns, 10% to 90%
R F
R
F
Figure 3. Waveform for Inverting and Non−
Figure 4. 3−State Output High Enable and
Inverting Functions
Disable for Low Voltage Logic
11. Input t = t = 2.0 ns, 10% to 90%
R
F
Figure 5. 3−State Output High Enable and
Disable for Low Voltage Logic
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9
FXLH42245
Table 3.
V
CC
3.3 V + 0.3 V
2.5 V + 0.2 V
1.8 V + 0.15 V
1.5 V + 0.1 V
1.2 V + 0.1 V
Symbol
V
MI
V
/2
V
/2
V
/2
V
/2
V
/2
CCI
CCI
CCI
CCI
CCI
V
MO
V
CC0
/2
V
CC0
/2
V
CC0
/2
V
CC0
/2
V
CC0
/2
V
X
V
OH
− 0.3 V
V
OH
− 0.15 V
V
OH
− 0.15 V
V
OH
− 0.1 V
V
OH
− 0.1 V
V
Y
V
OL
+ 0.3 V
V
OL
+ 0.15 V
V
OL
+ 0.15 V
V
OL
+ 0.1 V
V + 0.1 V
OL
12.For V
V
= V
for control pins T/R and OE or V
/2.
MI CCO
CCA
CCA
FUNCTIONAL DESCRIPTION
The recommended power−down sequence is:
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
1. Drive OE input HIGH to disable the device.
2. Remove power from either V
.
CC
design. When either V
is at 0 V, outputs are in a
3. Remove power from the other V
.
CC
CC
High−impedance state. The control inputs (T/R and OE) are
designed to track the V supply. A pull−up resistor tying
CCA
OE to V
should be used to ensure that bus contention,
CCA
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:
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 the other V
.
CC
4. Drive the OE input LOW to enable the device.
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10
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
WQFN24 4.5x3.5, 0.5P
CASE 510CE
ISSUE O
DATE 31 AUG 2016
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DOCUMENT NUMBER:
DESCRIPTION:
98AON13646G
WQFN24 4.5X3.5, 0.5P
PAGE 1 OF 1
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相关型号：
FXLH42245_09
Low-Voltage, Dual-Supply, 8-Bit, Signal Translator with Configurable Voltage Supplies, Bushold Data Inputs, 3-State Outputs and 26Ω Series Resistors in the B-Port Outputs
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