- 您現(xiàn)在的位置：買賣IC網 > PDF目錄11548 > SST89V58RD2-33-I-NJE (Microchip Technology)IC MCU 8BIT 40KB FLASH 44PLCC PDF資料下載
參數(shù)資料
| 型號： | SST89V58RD2-33-I-NJE |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 61/92頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 8BIT 40KB FLASH 44PLCC |
| 標準包裝： | 27 |
| 系列： | FlashFlex® |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 33MHz |
| 連通性： | EBI/EMI，SPI，UART/USART |
| 外圍設備： | 欠壓檢測/復位，POR，WDT |
| 輸入/輸出數(shù)： | 36 |
| 程序存儲器容量： | 32KB（32K x 8） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 8K x 8 |
| RAM 容量： | 1K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.7 V ~ 3.6 V |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 44-LCC（J 形引線） |
| 包裝： | 管件 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁當前第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁
2011 Silicon Storage Technology, Inc.
DS25087A
10/11
64
FlashFlex MCU
SST89V54RD2/RD / SST89V58RD2/RD
Not Recommended for New Designs
A Microchip Technology Company
Security Lock
The security lock protects against software piracy and prevents the contents of the flash from being
read by unauthorized parties. It also protects against code corruption resulting from accidental erasing
and programming to the internal flash memory. There are two different types of security locks in the
device security lock system: hard lock and SoftLock.
Hard Lock
When hard lock is activated, MOVC or IAP instructions executed from an unlocked or soft locked pro-
gram address space, are disabled from reading code bytes in hard locked memory blocks (See Table
25). Hard lock can either lock both flash memory blocks or just lock the 8 KByte flash memory block
(Block 1). All external host and IAP commands except for Chip-Erase are ignored for memory blocks
that are hard locked.
SoftLock
SoftLock allows flash contents to be altered under a secure environment. This lock option allows the
user to update program code in the soft locked memory block through in-application programming
mode under a predetermined secure environment. For example, if Block 1 (8K) memory block is locked
(hard locked or soft locked), and Block 0 memory block is soft locked, code residing in Block 1 can pro-
gram Block 0. The following IAP mode commands issued through the command mailbox register,
SFCM, executed from a Locked (hard locked or soft locked) block, can be operated on a soft locked
block: Block-Erase, Sector-Erase, Byte-Program and Byte-Verify.
In external host mode, SoftLock behaves the same as a hard lock.
Security Lock Status
The three bits that indicate the device security lock status are located in SFST[7:5]. As shown in Figure
30 and Table 24, the three security lock bits control the lock status of the primary and secondary blocks
of memory. There are four distinct levels of security lock status. In the first level, none of the security
lock bits are programmed and both blocks are unlocked. In the second level, although both blocks are
now locked and cannot be programmed, they are available for read operation via Byte-Verify. In the
third level, three different options are available: Block 1 hard lock / Block 0 SoftLock, SoftLock on both
blocks, and hard lock on both blocks. Locking both blocks is the same as Level 2, Block 1 except read
operation isn’t available. The fourth level of security is the most secure level. It doesn’t allow read/pro-
gram of internal memory or boot from external memory. For details on how to program the security lock
bits refer to the external host mode and in-application programming sections.
相關PDF資料 |
PDF描述 |
|---|---|
| VI-21M-IX-S | CONVERTER MOD DC/DC 10V 75W |
| MMCX-J-FHSB | CONN MMCX JACK STRAIGHT FHSB |
| MMCX-LR-SMT | CONN MMCX RECEPT RT ANG PCB SMT |
| SST89V58RD2-33-C-NJE | IC MCU 8BIT 40KB FLASH 44PLCC |
| VI-21L-IX-S | CONVERTER MOD DC/DC 28V 75W |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SST89V58RD2-33-I-NJE1 | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89V58RD2-33-I-NJF2 | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89V58RD2-33-I-PI | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89V58RD2-33-I-PIE1 | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89V58RD2-33-I-PIF2 | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
發(fā)布緊急采購，3分鐘左右您將得到回復。