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參數(shù)資料
| 型號(hào)： | TXB0108GXYR |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO-DIRECTION SENSING AND 【15-kV ESD PROTECTION |
| 中文描述： | 8位雙向電壓電平轉(zhuǎn)換與汽車方向傳感及【15 - kV ESD保護(hù) |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 285K |
| 代理商： | TXB0108GXYR |
www.ti.com
I
IN
V
IN
V
T
/4 k
–(V
D
– V
T
)/4 k
A. V
T
is the input threshold voltage of the TXB0108 (typically V
CCI
/2).
B. V
D
is the supply voltage of the external driver.
Power Up
During operation, ensure that V
CCA
≤
V
CCB
at all times. During power-up sequencing, V
CCA
≥
V
CCB
does not
damage the device, so any power supply can be ramped up first. The TXB0108 has circuitry that disables all
output ports when either V
CC
is switched off (V
CCA/B
= 0 V).
Enable and Disable
The TXB0108 has an OE input that is used to disable the device by setting OE = low, which places all I/Os in
the high-impedance (Hi-Z) state. The disable time (t
dis
) indicates the delay between when OE goes low and
when the outputs actually get disabled (Hi-Z). The enable time (t
en
) indicates the amount of time the user must
allow for the one-shot circuitry to become operational after OE is taken high.
Pullup or Pulldown Resistors on I/O Lines
The TXB0108 is designed to drive capacitive loads of up to 70 pF. The output drivers of the TXB0108 have low
dc drive strength. If pullup or pulldown resistors are connected externally to the data I/Os, their values must be
kept higher than 50 k
to ensure that they do not contend with the output drivers of the TXB0108.
For the same reason, the TXB0108 should not be used in applications such as I
2
C or 1-Wire where an
open-drain driver is connected on the bidirectional data I/O. For these applications, use a device from the TI
TXS01xx series of level translators.
TXB0108
8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR
WITH AUTO-DIRECTION SENSING AND
±
15-kV ESD PROTECTION
SCES643A–NOVEMBER 2006–REVISED JANUARY 2007
PRINCIPLES OF OPERATION (continued)
Figure 2. Typical I
IN
vs V
IN
Curve
11
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| TXB0108PWR | 功能描述:轉(zhuǎn)換 - 電壓電平 8-Bit Bi-directional V-Level 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 |
| TXB0108PWR | 制造商:Texas Instruments 功能描述:TRANSLATOR / LOGIC LEVEL CONVERTER IC 制造商:Texas Instruments 功能描述:IC, 8BIT VOLTAGE LEVEL XLATOR, TSSOP-20 |
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| TXB0108RGYR | 功能描述:轉(zhuǎn)換 - 電壓電平 8-Bit Bi-directional V-Level 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 |
| TXB0108RGYRG4 | 功能描述:轉(zhuǎn)換 - 電壓電平 8B Bidir Vltg-Level 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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