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| 型号： | MM74HC244WMX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC BUFF/DVR TRI-ST DUAL 20SOIC |
| 标准包装： | 1 |
| 系列： | 74HC |
| 逻辑类型： | 缓冲器/线路驱动器，非反相 |
| 元件数： | 2 |
| 每个元件的位元数： | 4 |
| 输出电流高，低： | 7.8mA，7.8mA |
| 电源电压： | 2 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 标准包装 |
| 产品目录页面： | 1209 (CN2011-ZH PDF) |
| 其它名称： | MM74HC244WMXDKR |
2005 Fairchild Semiconductor Corporation
DS005327
www.fairchildsemi.com
September 1983
Revised May 2005
MM74HC244
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ta
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A
T
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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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相关代理商/技术参数 |
参数描述 |
|---|---|
| MM74HC244WMX_NL | 制造商:Fairchild Semiconductor Corporation 功能描述:HC logic SOIC |
| MM74HC245A | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Octal TRI-STATE Transceiver |
| MM74HC245AMTC | 功能描述:总线收发器 Octal 3-STATE Trans RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| MM74HC245AMTC_Q | 功能描述:总线收发器 Octal 3-STATE Trans RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| MM74HC245AMTCX | 功能描述:总线收发器 Octal 3-STATE Trans RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
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