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參數(shù)資料
| 型號： | DM74S244 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Octal 3-STATE Buffer/Line Driver/Line Receiver(八3態(tài)緩沖器/線驅(qū)動器/線接收器) |
| 中文描述： | 八路三態(tài)緩沖器/線路驅(qū)動器/線接收器（八三態(tài)緩沖器/線驅(qū)動器/線接收器） |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 46K |
| 代理商： | DM74S244 |
2000 Fairchild Semiconductor Corporation
DS006478
www.fairchildsemi.com
August 1986
Revised May 2000
D
DM74S240
DM74S241
DM74S244
Octal 3-STATE Buffer/Line Driver/Line Receiver
General Description
These buffers/line drivers are designed to improve both the
performance and PC board density of 3-STATE buffers/
drivers employed as memory-address drivers, clock driv-
ers, and bus-oriented transmitters/receivers. Featuring 400
mV of hysteresis at each low current PNP data line input,
they provide improved noise rejection and high fanout out-
puts, and can be used to drive terminated lines down to
133
.
Features
I
3-STATE outputs drive bus lines directly
I
PNP inputs reduce DC loading on bus lines
I
Hysteresis at data inputs improves noise margins
I
Typical I
OL
(sink current)
I
Typical I
OH
(source current)
I
Typical propagation delay times
Inverting
4.5 ns
Noninverting
6 ns
I
Typical enable/disable times 9 ns
I
Typical power dissipation (enabled)
Inverting
450 mW
Noninverting
538 mW
64 mA
15 mA
Ordering Code:
Connection Diagrams
DM74S240N
DM74S241N
DM74S244N
Order Number
DM74S240N
DM74S241N
DM74S244N
Package Number
N20A
N20A
N20A
Package Description
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DM74S253 | Dual 3-STATE 1-of-4 Line Data Selector/Multiplexer |
| DM74S253N | Dual 3-STATE 1-of-4 Line Data Selector/Multiplexer |
| DM74S257 | 3-STATE Quad 1-of-2 Data Selector/Multiplexer |
| DM74S257N | 3-STATE Quad 1-of-2 Data Selector/Multiplexer |
| DM74S280 | 9-Bit Parity Generator/Checker |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74S244 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DM74S244J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| DM74S244N | 功能描述:緩沖器和線路驅(qū)動器 Oct 3-STATE Buff/Drv RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| DM74S251J | 制造商:Texas Instruments 功能描述: |
| DM74S253 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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