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81C55 参数 Datasheet PDF下载

81C55图片预览
型号: 81C55
PDF下载: 下载PDF文件 查看货源
内容描述: 2048位CMOS静态的I / O端口和定时器RAM [2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER]
分类和应用:
文件页数/大小: 19 页 / 157 K
品牌: OKI [ OKI ELECTRONIC COMPONETS ]
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¡ Semiconductor  
MSM81C55-5RS/GS/JS  
ABSOLUTE MAXIMUM RATING  
Rating  
Parameter  
Symbol Conditions  
Unit  
MSM81C55-5RS MSM81C55-5GS MSM81C55-5JS  
Power Supply Voltage  
Input Voltage  
VCC  
V
V
–0.5 to +7  
–0.5 to VCC +0.5  
–0.5 to VCC +0.5  
–55 to +150  
Referenced  
to GND  
VIN  
Output Voltage  
VOUT  
V
TSTG  
PD  
Storage Temperature  
Power Dissipation  
°C  
W
1.0  
0.7  
1.0  
Ta = 25°C  
OPERATING CONDITION  
Parameter  
Power Supply Voltage  
Operating Temperature  
Symbol  
VCC  
Range  
Unit  
V
3 to 6  
°C  
TOP  
–40 to +85  
RECOMMENDED OPERATING CONDITIONS  
Parameter  
Power Supply Voltage (81C55)  
Operating Temperature (81C55)  
"L" Level Input  
Symbol  
VCC  
Unit  
V
Min.  
4.5  
Typ.  
5
Max.  
5.5  
TOP  
–40  
–0.3  
2.2  
+25  
+85  
°C  
V
VIL  
+0.8  
CC +0.3  
5.25  
+70  
VIH  
V
V
"H" Level Input  
VCC  
4.75  
–40  
5
V
Supply Voltage (81C55-5)  
Operating Temperature (81C55-5)  
VOP  
+25  
°C  
DC CHARACTERISTICS  
Parameter  
Symbol  
Condition  
Unit  
V
Min.  
Typ. Max.  
"L" Level Output Voltage  
VOL  
I
I
I
OL = 2 mA  
0.45  
OH = –400 mA  
OH = –40 mA  
2.4  
V
VOH  
"H" Level Output Voltage  
4.2  
V
Input Leak Current  
Output Leak Current  
ILI  
0 £ VIN £ VCC  
–10  
–10  
10  
mA  
mA  
VCC = 4.5 V to 5.5 V  
Ta = –40°C to 85°C  
ILO  
0 £ VOUT £ VCC  
10  
CE VCC –0.2 V  
VIH VCC –0.2 V  
VIL £ –0.2 V  
Memory cycle  
time: 1 ms  
Standby Current  
ICCS  
0.1  
100  
5
mA  
mA  
Mean Operating  
Current  
ICC  
3/19  
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