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參數(shù)資料
| 型號(hào)： | P89C51RB2FA |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
| 中文描述： | 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, SOT-187-2, LCC-44 |
| 文件頁(yè)數(shù)： | 47/52頁(yè) |
| 文件大?。?/td> | 289K |
| 代理商： | P89C51RB2FA |
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Philips Semiconductors
Preliminary specification
89C51RB2/89C51RC2/
89C51RD2
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
1999 Sep 23
47
Security
The security feature protects against software piracy and prevents
the contents of the Flash from being read. The Security Lock bits
are located in Flash. The 89C51RB2/RC2/RD2 has 3 programmable
security lock bits that will provide different levels of protection for the
on-chip code and data (see Table 10).
Table 10.
SECURITY LOCK BITS
1
PROTECTION DESCRIPTION
LB1
LB2
LB3
X
X
X
MOVC instructions executed from external program memory are disabled from fetching code bytes
from internal memory.
1
X
X
Block erase is disabled. Erase or programming of the status byte or boot vector is disabled.
X
1
X
Verify of code memory is disabled.
X
X
1
External execution is disabled.
NOTE:
1. Security bits are independent of each other. Full-chip erase may be performed regardless of the state of the security bits.
相關(guān)PDF資料 |
PDF描述 |
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| P89C51RB2FB | 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
| P89C51RB2FP | 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
| P89C51RB2HFA | 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
| P89C51RB2HFB | 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
| P89C51RB2HFP | 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P89C51RB2FB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
| P89C51RB2FP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
| P89C51RB2H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
| P89C51RB2HBA | 制造商:NXP Semiconductors 功能描述:8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQCC44 |
| P89C51RB2HBB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM |
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