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參數資料
| 型號： | DM74ALS244AN |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal 3-STATE Bus Driver |
| 中文描述： | ALS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001, DIP-20 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 73K |
| 代理商： | DM74ALS244AN |
2000 Fairchild Semiconductor Corporation
DS006212
www.fairchildsemi.com
September 1986
Revised February 2000
D
DM74ALS244A
Octal 3-STATE Bus Driver
General Description
This octal 3-STATE bus driver is designed to provide the
designer with flexibility in implementing a bus interface with
memory, microprocessor, or communication systems. This
device offers 64-extended temperature Grade product
guaranteeing performance from
40
°
C to
+
85
°
C. The out-
put 3-STATE gating control is organized into two separate
groups of four buffers, and both control inputs enable the
respective outputs when set logic LOW. The 3-STATE cir-
cuitry contains a feature that maintains the buffer outputs in
3-STATE (high impedance state) during power supply
ramp-up or ramp-down. This eliminates bus glitching prob-
lems that arise during power-up and power-down.
Features
I
Advanced low power oxide-isolated ion-implanted
Schottky TTL process
I
Functional and pin compatible with the 74LS counterpart
I
Improved switching performance with less power dissi-
pation compared with the 74LS counterpart
I
Switching response specified into 500
and 50 pF load
I
Switching response specifications guaranteed over full
temperature and V
CC
supply range
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
H
=
HIGH Level Logic State
L
=
LOW Level Logic State
X
=
Don't Care (Either LOW or HIGH Level Logic State)
Z
=
High Impedance (OFF) State
Logic Diagram
Order Number
DM74ALS244AWM
DM74ALS244ASJ
DM74ALS244AMSA
DM74ALS244AN
Package Number
M20B
M20D
MSA20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Input
Output
G
L
L
H
A
L
H
X
Y
L
H
Z
相關PDF資料 |
PDF描述 |
|---|---|
| DM74ALS244ASJ | Octal 3-STATE Bus Driver |
| DM74ALS244AMSAX | Dual 4-Bit Non-Inverting Buffer/Driver |
| DM74ALS244ASJX | Dual 4-Bit Non-Inverting Buffer/Driver |
| DM74ALS244AWM | Octal 3-STATE Bus Driver |
| DM74ALS245 | Octal 3-STATE Bus Transceiver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DM74ALS244AN | 制造商:Fairchild Semiconductor Corporation 功能描述:IC 74ALS TTL 74ALS244 DIP20 5V |
| DM74ALS244AN/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Non-Inverting Buffer/Driver |
| DM74ALS244AN/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Non-Inverting Buffer/Driver |
| DM74ALS244AN_Q | 功能描述:緩沖器和線路驅動器 Oct 3-STATE Bus Drv RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量: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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| DM74ALS244AN-1/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Non-Inverting Buffer/Driver |
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