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參數(shù)資料
| 型號： | 74LVT2245 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Dual 4-to-1 Channel Analog Multiplexer/Demultiplexer with Injection Current Effect Control 16-PDIP -40 to 85 |
| 中文描述： | 低壓八路雙向收發(fā)器具有三態(tài)輸入/輸出和25ヘ系列中，B端口輸出電阻 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 106K |
| 代理商： | 74LVT2245 |
2005 Fairchild Semiconductor Corporation
DS012173
www.fairchildsemi.com
November 1999
Revised March 2005
7
S
74LVT2245
74LVTH2245
Low Voltage Octal Bidirectional Transceiver with
3-STATE Inputs/Outputs and 25 Series Resistors
in the B Port Outputs
General Description
The LVT2245 and LVTH2245 contain eight non-inverting
bidirectional buffers with 3-STATE outputs and are
intended for bus-oriented applications. The Transmit/
Receive (T/R) input determines the direction of data flow
through the bidirectional transceiver. Transmit (active-
HIGH) enables data from A Ports to B Ports; Receive
(active-LOW) enables data from B Ports to A Ports. The
Output Enable input, when HIGH, disables both A and B
Ports by placing them in a high impedance state. The
equivalent 25
:
-series resistor in the B Port helps reduce
output overshoot and undershoot.
The LVTH2245 data inputs include bushold, eliminating the
need for external pull-up resistors to hold unused inputs.
These transceivers are designed for low voltage (3.3V)
V
CC
applications, but with the capability to provide a TTL
interface to a 5V environment. The LVT2245 and
LVTH2245 are fabricated with an advanced BiCMOS tech-
nology to achieve high speed operation similar to 5V ABT
while maintaining low power dissipation.
Features
I
Input and output interface capability to systems at
5V V
CC
I
Equivalent 25
:
series resistor on B Port outputs
I
Bushold data inputs eliminate the need for external
pull-up resistors to hold unused inputs (74LVTH2245),
also available without bushold feature (74LVT2245)
I
Live insertion/extraction permitted
I
Power Up/Down high impedance provides glitch-free
bus loading
I
Outputs source/sink 12 mA/ 12 mA on B Port,
32 mA/ 64 mA on A Port
I
Latch-up performance exceeds 500 mA
I
ESD performance:
Human-body model
!
2000V
Machine model
!
200V
Charged-device model
!
1000V
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Note 1:
“_NL” indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only.
Order Number
Package
Number
M20B
M20D
MSA20
MTC20
MTC20
Package Description
74LVT2245WM
74LVT2245SJ
74LVT2245MSA
74LVT2245MTC
74LVT2245MTCX_NL
(Note 1)
74LVTH2245WM
74LVTH2245SJ
74LVTH2245MSA
74LVTH2245MTC
74LVTH2245MTCX_NL
(Note 1)
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
M20B
M20D
MSA20
MTC20
MTC20
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74LVT2245MSA | Dual 4-to-1 Channel Analog Multiplexer/Demultiplexer with Injection Current Effect Control 16-TSSOP -40 to 85 |
| 74LVT2245MSAX | Dual 4-to-1 Channel Analog Multiplexer/Demultiplexer with Injection Current Effect Control 16-TSSOP -40 to 85 |
| 74LVT2245MTC | Dual 4-to-1 Channel Analog Multiplexer/Demultiplexer with Injection Current Effect Control 16-TSSOP -40 to 85 |
| 74LVT2245MTCX | Dual 4-to-1 Channel Analog Multiplexer/Demultiplexer with Injection Current Effect Control 16-TSSOP -40 to 85 |
| 74LVT2245MTCX_NL | Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs and 25ヘ Series Resistors in the B Port Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LVT2245_UAB3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74LVT2245D | 功能描述:總線收發(fā)器 3.3V OCTAL XCVR 3-S 30 OHM 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 |
| 74LVT2245D,112 | 功能描述:總線收發(fā)器 3.3V OCTAL XCVR 3-S 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 |
| 74LVT2245D,118 | 功能描述:總線收發(fā)器 3.3V OCTAL XCVR 3-S 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 |
| 74LVT2245DB | 功能描述:總線收發(fā)器 3.3V XCVR 3-S W/30 OHM 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 |
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