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GMS90C32-GBPL40 参数 Datasheet PDF下载

GMS90C32-GBPL40图片预览
型号: GMS90C32-GBPL40
PDF下载: 下载PDF文件 查看货源
内容描述: [Microcontroller, 8-Bit, 40MHz, CMOS, PQCC44, PLASTIC, LCC-44]
分类和应用: 时钟微控制器外围集成电路
文件页数/大小: 59 页 / 724 K
品牌: HYNIX [ HYNIX SEMICONDUCTOR ]
 浏览型号GMS90C32-GBPL40的Datasheet PDF文件第48页浏览型号GMS90C32-GBPL40的Datasheet PDF文件第49页浏览型号GMS90C32-GBPL40的Datasheet PDF文件第50页浏览型号GMS90C32-GBPL40的Datasheet PDF文件第51页浏览型号GMS90C32-GBPL40的Datasheet PDF文件第53页浏览型号GMS90C32-GBPL40的Datasheet PDF文件第54页浏览型号GMS90C32-GBPL40的Datasheet PDF文件第55页浏览型号GMS90C32-GBPL40的Datasheet PDF文件第56页  
HYUNDAI MicroElectronics  
GMS90 Series  
encryption table is disabled. However, the other security bit can still be programmed. Note that the EA/VPP pin  
must not be allowed to go above the maximum specified VPP level for any amount of time. Even a narrow glitch  
above that voltage can cause permanent damage to the device. The VPP source should be well regulated and free  
glitches and overshoot.  
+5V  
V
CC  
P1  
A0-A7  
PROGRAM DATA  
+12.75V  
P0  
P2.0  
-P2.5  
A8-A13  
EA/V  
PP  
P3.4  
A14  
1
1
1
RST  
P3.6  
P3.7  
NOTE  
ALE/PROG  
0
1
PSEN  
P2.7  
XTAL2  
XTAL1  
4~6MHz  
P2.6  
1
V
SS  
NOTE:  
GMS97X51/52:  
100µs × 25 pulses to GND  
GMS97X54/56/58: 100µs × 10 pulses to GND  
Figure 12. Programming Configuration  
Program Verification  
If security bit 2 has not been programmed, the on-chip program memory can be read out for program verifica-  
tion. The address of the program memory location to be read is applied to ports 1 and 2 as shown in Figure 15.  
The other pins are held at the "Verify Code Data" levels indicated in Table 11. The contents of the address lo-  
cation will be emitted on port 0 for this operation. If the encryption table has been programmed, the data pre-  
sented at port 0 will be the exclusive NOR of the program byte with one of the encryption bytes. The user will  
have to know the encryption table contents in order to correctly decode the verification data. The encryption  
table itself cannot be read out.  
48  
Oct. 2000 Ver 3.1a  
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