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參數(shù)資料
| 型號： | DM74ALS645AWM |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal Bus Transceivers |
| 中文描述： | ALS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 47K |
| 代理商： | DM74ALS645AWM |
2000 Fairchild Semiconductor Corporation
DS009304
www.fairchildsemi.com
March 1987
Revised February 2000
D
DM74ALS645A
Octal Bus Transceivers
General Description
These octal bus transceivers are designed for asynchro-
nous two-way communication between data busses. These
devices transmit data from the A bus to the B bus or from
the B bus to the A bus depending upon the level at the
direction control (DIR) input. The enable input (G) can be
used to disable the device so the busses are effectively
isolated.
Features
I
Advanced Oxide-isolated Ion-implanted Schottky TTL
process
I
Switching performance is guaranteed over full tempera-
ture and V
CC
supply range
I
Switching performance specified at 50 pF
I
PNP input design reduces input loading
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
L
=
LOW Logic Level
H
=
HIGH Logic Level
X
=
Either LOW or HIGH Logic Level
Logic Diagram
Order Number
DM74ALS645AWM
DM74ALS645AN
Package Number
M20B
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Control
Inputs
Operation
G
L
L
H
DIR
L
H
X
B Data to A Bus
A Data to B Bus
Isolation
相關PDF資料 |
PDF描述 |
|---|---|
| DM74ALS645AN | Octal Bus Transceivers |
| DM74ALS645AWMX | Single 8-bit Bus Transceiver |
| DM74ALS646 | Octal 3-STATE Bus Transceiver and Register(八總線收發(fā)器和寄存器（三態(tài)輸出）) |
| DM74ALS646WM | Octal 3-STATE Bus Transceiver and Register |
| DM74ALS646NT | Octal 3-STATE Bus Transceiver and Register |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DM74ALS645AWM_Q | 功能描述:總線收發(fā)器 Octal Bus Trans 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 |
| DM74ALS645AWMX | 功能描述:總線收發(fā)器 Octal Bus Trans 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 |
| DM74ALS646NT | 功能描述:總線收發(fā)器 Oct 3-STATE Tran Reg 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 |
| DM74ALS646NT_Q | 功能描述:總線收發(fā)器 Oct 3-STATE Tran Reg 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 |
| DM74ALS646WM | 功能描述:總線收發(fā)器 Oct 3-STATE Tran Reg 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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