参数资料
型号: MM74HC244WMX
厂商: Fairchild Semiconductor
文件页数: 3/8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
3
www.fairchildsemi.com
MM74HC244
Absolute Maximum Ratings(Note 1)
(Note 2)
Recommended Operating
Conditions
Note 1: Absolute Maximum Ratings are those values beyond which dam-
age to the device may occur.
Note 2: Unless otherwise specified all voltages are referenced to ground.
Note 3: Power Dissipation temperature derating — plastic “N” package:
12 mW/
qC from 65qC to 85qC.
DC Electrical Characteristics (Note 4)
Note 4: For a power supply of 5V
r 10% the worst case output voltages (VOH, and VOL) occur for HC at 4.5V. Thus the 4.5V values should be used when
designing with this supply. Worst case VIH and VIL occur at VCC
5.5V and 4.5V respectively. (The VIH value at 5.5V is 3.85V.) The worst case leakage cur-
rent (IIN, ICC, and IOZ) occur for CMOS at the higher voltage and so the 6.0V values should be used.
Supply Voltage (VCC)
0.5 to 7.0V
DC Input Voltage (VIN)
1.5 to VCC 1.5V
DC Output Voltage (VOUT)
0.5 to VCC 0.5V
Clamp Diode Current (IIK, IOK)
r 20 mA
DC Output Current, per pin (IOUT)
r 35 mA
DC VCC or GND Current, per pin (ICC)
r 70 mA
Storage Temperature Range (TSTG)
65qC to 150qC
Power Dissipation (PD)
(Note 3)
600 mW
S.O. Package only
500 mW
Lead Temperature (TL)
(Soldering 10 seconds)
260
qC
Min
Max
Units
Supply Voltage (VCC)2
6
V
DC Input or Output Voltage
(VIN, VOUT)0
VCC
V
Operating Temperature Range (TA) 40
85
qC
Input Rise or Fall Times
(tr, tf) VCC 2.0V
1000
ns
VCC 4.5V
500
ns
VCC 6.0V
400
ns
Symbol
Parameter
Conditions
VCC
TA 25qCTA 40 to 85qCTA 55 to 125qC
Units
Typ
Guaranteed Limits
VIH
Minimum HIGH Level
2.0V
1.5
V
Input Voltage
4.5V
3.15
V
6.0V
4.2
V
VIL
Maximum LOW Level
2.0V
0.5
V
Input Voltage
4.5V
1.35
V
6.0V
1.8
V
VOH
Minimum HIGH Level
VIN VIH or VIL
Output Voltage
|IOUT| d 20 PA
2.0V
2.0
1.9
V
4.5V
4.5
4.4
V
6.0V
6.0
5.9
V
VIN VIH or VIL
V
|IOUT| d 6.0 mA
4.5V
4.2
3.98
3.84
3.7
V
|IOUT| d 7.8 mA
6.0V
5.7
5.4
5.34
5.2
V
VOL
Maximum LOW Level
VIN VIH or VIL
Output Voltage
|IOUT| d 20 PA
2.0V
0
0.1
V
4.5V
0
0.1
V
6.0V
0
0.1
V
VIN VIH or VIL
|IOUT| d 6.0 mA
4.5V
0.2
0.26
0.33
0.4
V
|IOUT| d 7.8 mA
6.0V
0.2
0.26
0.33
0.4
V
IIN
Maximum Input
VIN VCC or GND
6.0V
r 0.1
r 1.0
r1.0
PA
Current
IOZ
Maximum 3-STATE
VIN VIH, or VIL
6.0V
r 0.5
r 5
r10
PA
Output Leakage
VOUT VCC or GND
Current
G
VIH
ICC
Maximum Quiescent
VIN VCC or GND
6.0V
8.0
80
160
PA
Supply Current
IOUT 0 PA
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