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參數(shù)資料
| 型號(hào)： | FXMA2102L8X |
| 廠商： | Fairchild Semiconductor |
| 文件頁數(shù)： | 15/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | TRANSLATOR/BUFF/REPEAT 8-MLP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 邏輯功能： | 變換器，雙向，3 態(tài)，開路漏極 |
| 位數(shù)： | 2 |
| 輸入類型： | 電壓 |
| 輸出類型： | 電壓 |
| 通道數(shù)： | 2 |
| 輸出/通道數(shù)目： | 1 |
| 差分 - 輸入:輸出： | 無/無 |
| 傳輸延遲（最大）： | 4ns |
| 電源電壓： | 1.65 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 8-UFQFN |
| 供應(yīng)商設(shè)備封裝： | 8-MicroPak? |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | FXMA2102L8XDKR |
2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FXMA2102
Rev. 1.0.6
8
F
XM
A
2102
—
Dual
-S
upply
,
2
-Bit
Vol
tage
Tra
nsl
a
to
r/
Buf
fer
/
Repe
a
ter
/
Is
ola
to
rfor
I
2
C
Ap
plic
a
tions
I
2
C-Bus
Isolation
The FXMA2102 supports I
2C-Bus isolation for the
following conditions:
Bus isolation if bus clear
Bus isolation if either V
CC goes to ground
Bus Clear
Because the I
2C specification defines the minimum SCL
frequency of DC, the SCL signal can be held LOW
forever; however, this condition shuts down the I
2C bus.
The I
2C specification refers to this condition as “Bus
Clear”. In Figure 7, if slave #2 holds down SCL forever,
the master and slave #1 are not able to communicate,
because the FXMA2102 passes the SCL stuck-LOW
condition from slave #2 to slave #1 as well as the
master. However, if the OE pin is pulled LOW
(disabled), both ports (A and B) are 3-stated. This
results in the FXMA2102 isolating slave #2 from the
master and slave #1, allowing full communication
between the master and slave #1.
Either VCC to GND
If slave #2 is a camera that is suddenly removed from
the I
2C bus, resulting in V
CCB transitioning from a valid
VCC
(1.65 V
–
5.5 V)
to
0 V,
the
FXMA2102
automatically forces SCL and SDA on both its A and B
ports into 3-state. Once VCCB has reached 0V, full I
2C
communication between the master and slave #1
remains undisturbed.
Master
FXMA2102
I
2C Buffer
Translator
SCL
SDA
Slave #2
SCL
SDA
VCC = 3.3V
Slave #1
SCL
SDA
VCC = 1.8V
VCCB
VCCA
OE
OE: High Enable
Low Disable
VCCB:
3.3V VCC Domain
VCCA:
1.8V VCC Domain
Figure 7. Bus Isolation
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FXMA2102L8X_F087 | 功能描述:轉(zhuǎn)換 - 電壓電平 Config Volt Xlator RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8 |
| FXMA2102UMX | 功能描述:轉(zhuǎn)換 - 電壓電平 2xSupply 2-Bit Volt Trnsltr/Bffr/Rptr RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8 |
| FXMA2102UMX_F106 | 功能描述:轉(zhuǎn)換 - 電壓電平 Config Volt Xlator RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8 |
| FXMA2104 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Dual-Supply, 4-Bit Voltage Translator / Buffer / Repeater |
| FXMA2104UMX | 功能描述:轉(zhuǎn)換 - 電壓電平 Dual Supply 4-Bit Voltage Translator RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8 |
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