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參數資料
| 型號： | MM74HC244SJX |
| 廠商： | Fairchild Semiconductor |
| 文件頁數： | 1/8頁 |
| 文件大小： | 0K |
| 描述： | IC BUFF/DVR TRI-ST DUAL 20SOP |
| 標準包裝： | 2,000 |
| 系列： | 74HC |
| 邏輯類型： | 緩沖器/線路驅動器，非反相 |
| 元件數： | 2 |
| 每個元件的位元數： | 4 |
| 輸出電流高，低： | 7.8mA，7.8mA |
| 電源電壓： | 2 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.209"，5.30mm 寬） |
| 供應商設備封裝： | 20-SOIC |
| 包裝： | 帶卷 (TR) |
2005 Fairchild Semiconductor Corporation
DS005327
www.fairchildsemi.com
September 1983
Revised May 2005
MM74HC244
O
c
ta
l3-ST
A
T
E
Buf
fer
MM74HC244
Octal 3-STATE Buffer
General Description
The MM74HC244 is a non-inverting buffer and has two
active low enables (1G and 2G); each enable indepen-
dently controls 4 buffers. This device does not have
Schmitt trigger inputs.
These 3-STATE buffers utilize advanced silicon-gate
CMOS technology and are general purpose high speed
non-inverting buffers. They possess high drive current out-
puts which enable high speed operation even when driving
large bus capacitances. These circuits achieve speeds
comparable to low power Schottky devices, while retaining
the advantage of CMOS circuitry, i.e., high noise immunity,
and low power consumption. All three devices have a
fanout of 15 LS-TTL equivalent inputs.
All inputs are protected from damage due to static dis-
charge by diodes to VCC and ground.
Features
s Typical propagation delay: 14 ns
s 3-STATE outputs for connection to system buses
s Wide power supply range: 2–6V
s Low quiescent supply current: 80
PA
s Output current: 6 mA
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Top View
Truth Table
H
HIGH Level
L
LOW Level
Z
High Impedance
Order Number
Package Number
Package Description
MM74HC244WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
MM74HC244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HC244MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HC244N
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
1G
1A
1Y
2G
2A
2Y
LLL
LH
H
L
H
HL
Z
H
L
Z
HH
Z
H
Z
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MM74HC244WM | 功能描述:緩沖器和線路驅動器 Octal 3-STATE Buffer 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 |
| MM74HC244WM | 制造商:Fairchild Semiconductor Corporation 功能描述:IC 74HC CMOS SMD 74HC244 SOIC20 |
| MM74HC244WM_Q | 功能描述:緩沖器和線路驅動器 Octal 3-STATE Buffer 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 |
| MM74HC244WMX | 功能描述:緩沖器和線路驅動器 Octal 3-STATE Buffer 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 |
| MM74HC244WMX_NL | 制造商:Fairchild Semiconductor Corporation 功能描述:HC logic SOIC |
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