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参数资料
| 型号： | TS80C32X2-LIA |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 30 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 26/55页 |
| 文件大小： | 596K |
| 代理商： | TS80C32X2-LIA |
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32
TS8xCx2X2
4184I–8051–02/08
EPROM Structure
The TS87C52X2 is divided in two different arrays:
the code array: 8 Kbytes
the encryption array: 64 bytes
In addition a third non programmable array is implemented:
the signature array: 4 bytes
EPROM Lock System
The program Lock system, when programmed, protects the on-chip program against
software piracy.
Encryption Array
Within the EPROM array are 64 bytes of encryption array that are initially unpro-
grammed (all FF’s). Every time a byte is addressed during program verify, 6 address
lines are used to select a byte of the encryption array. This byte is then exclusive-
NOR’ed (XNOR) with the code byte, creating an encrypted verify byte. The algorithm,
with the encryption array in the unprogrammed state, will return the code in its original,
unmodified form.
When using the encryption array, one important factor needs to be considered. If a byte
has the value FFh, verifying the byte will produce the encryption byte value. If a large
block (>64 bytes) of code is left unprogrammed, a verification routine will display the
content of the encryption array. For this reason all the unused code bytes should be pro-
grammed with random values. This will ensure program protection.
Program Lock Bits
The three lock bits, when programmed according to Table 1., will provide different level
of protection for the on-chip code and data.
U: unprogrammed
P: programmed
WARNING: Security level 2 and 3 should only be programmed after EPROM and Core
verification.
Signature Bytes
The TS80/87C52X2 contains 4 factory programmed signatures bytes. To read these
bytes, perform the process described in section 9.
EPROM Programming
Set-up modes
In order to program and verify the EPROM or to read the signature bytes, the
TS87C52X2 is placed in specific set-up modes (See Figure 11.).
Program Lock Bits
Protection Description
Security
level
LB1
LB2
LB3
1
U
No program lock features enabled. Code verify will still be
encrypted by the encryption array if programmed. MOVC
instruction executed from external program memory returns non
encrypted data.
2
P
U
MOVC instruction executed from external program memory are
disabled from fetching code bytes from internal memory, EA is
sampled and latched on reset, and further programming of the
EPROM is disabled.
3
U
P
U
Same as 2, also verify is disabled.
4
U
P
Same as 3, also external execution is disabled.
相关PDF资料 |
PDF描述 |
|---|---|
| TS87C51RB2-EBR | 8-BIT, OTPROM, MICROCONTROLLER, PQCC44 |
| TS80C51RD2-MCBB | 8-BIT, 40 MHz, MICROCONTROLLER, PQCC44 |
| TS83C51RB2ZZZ-VCBB | 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PQCC44 |
| TS80C51RD2-MCLB | 8-BIT, 40 MHz, MICROCONTROLLER, PQCC68 |
| TS83C51RB2ZZZ-LCEB | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PQFP44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TS80C32X2-LIAB | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz |
| TS80C32X2-LIAD | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz |
| TS80C32X2-LIAR | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz |
| TS80C32X2-LIB | 功能描述:IC MCU 8BIT 30/20MHZ 44-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:80C 标准包装:1,500 系列:AVR® ATtiny 核心处理器:AVR 芯体尺寸:8-位 速度:16MHz 连通性:I²C，LIN，SPI，UART/USART，USI 外围设备:欠压检测/复位，POR，PWM，温度传感器，WDT 输入/输出数:16 程序存储器容量:8KB（4K x 16） 程序存储器类型:闪存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 11x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:带卷 (TR) |
| TS80C32X2-LIBB | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz |
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