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參數(shù)資料
| 型號： | 74LCX646 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Octal Buffers And Line Drivers With 3-State Outputs 20-SOIC -40 to 85 |
| 中文描述： | 低壓八路收發(fā)器/有5V容限輸入和輸出注冊 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 105K |
| 代理商： | 74LCX646 |
2001 Fairchild Semiconductor Corporation
DS011997
www.fairchildsemi.com
February 1994
Revised March 2001
7
74LCX646
Low Voltage Octal Transceiver/Register
with 5V Tolerant Inputs and Outputs
General Description
The LCX646 consists of registered bus transceiver circuits,
D-type flip-flops, and control circuitry providing multiplexed
transmission of data directly from the input bus or from the
internal storage registers. Data on the A or B bus will be
loaded into the respective registers on the LOW-to-HIGH
transition of the appropriate pin (CPAB or CPBA) (see
Functional Description).
The LCX646 is designed for low voltage (2.5V or 3.3V) V
CC
applications with capability of interfacing to a 5V signal
environment.
The LCX646 is fabricated with an advanced CMOS tech-
nology to achieve high speed operation while maintaining
CMOS low power dissipation.
Features
I
5V tolerant inputs and outputs
I
2.3V
3.6V V
CC
specifications provided
I
7.0 ns t
PD
max (V
CC
=
3.3V), 10
μ
A I
CC
max
I
Power down high impedance inputs and outputs
I
Supports live insertion/withdrawal (Note 1)
I
±
24 mA output drive (V
CC
=
3.0V)
I
Implements patented noise/EMI reduction circuitry
I
Latch-up performance exceeds 500 mA
I
ESD performance:
Human body model
>
2000V
Machine model
>
200V
Note 1:
To ensure the high-impedance state during power up or down, OE
should be tied to V
CC
through a pull-up resistor: the minimum value or the
resistor is determined by the current-sourcing capability of the driver.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Order Number
74LCX646WM
74LCX646MSA
74LCX646MTC
Package Number
M24B
MSA24
MTC24
Package Description
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pin Names
Description
A
0
–
A
7
Data Register A Inputs
Data Register A Outputs
B
0
–
B
7
Data Register B Inputs
Data Register B Outputs
CPAB, CPBA
Clock Pulse Inputs
SAB, SBA
Transmit/Receive Inputs
OE
Output Enable Input
DIR
Direction Control Input
相關PDF資料 |
PDF描述 |
|---|---|
| 74LCX646MTCX | Octal Buffers And Line Drivers With 3-State Outputs 20-PDIP -40 to 85 |
| 74LCX646WM | Low Voltage Octal Transceiver/Register with 5V Tolerant Inputs and Outputs |
| 74LCX646WMX | Octal Buffers And Line Drivers With 3-State Outputs 20-PDIP -40 to 85 |
| 74LCX646MSA | Low Voltage Octal Transceiver/Register with 5V Tolerant Inputs and Outputs |
| 74LCX652 | Octal Buffers And Line Drivers With 3-State Outputs 20-SO -40 to 85 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 74LCX646MSA | 功能描述:總線收發(fā)器 Octal Trans/Register 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 |
| 74LCX646MSA_Q | 功能描述:總線收發(fā)器 Octal Trans/Register 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 |
| 74LCX646MSAX | 功能描述:總線收發(fā)器 Octal Trans/Register 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 |
| 74LCX646MTC | 功能描述:總線收發(fā)器 Octal Trans/Register 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 |
| 74LCX646MTCX | 功能描述:總線收發(fā)器 Octal Trans/Register 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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