- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374693 > SAB80C517A-N18 (SIEMENS A G) 8-Bit CMOS Single-Chip Microcontroller PDF資料下載
參數(shù)資料
| 型號： | SAB80C517A-N18 |
| 廠商： | SIEMENS A G |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-Bit CMOS Single-Chip Microcontroller |
| 中文描述： | 8-BIT, 18 MHz, MICROCONTROLLER, PQCC84 |
| 文件頁數(shù)： | 19/77頁 |
| 文件大?。?/td> | 1358K |
| 代理商： | SAB80C517A-N18 |
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頁當(dāng)前第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
SAB 80C517A/83C517A-5
Semiconductor Group
18
1994-05-01
Program Memory ('Code Space')
The SAB 83C517A-5 has 32 Kbyte of on-chip ROM, while the SAB 80C517A has no internal
ROM. The program memory can externally be expanded up to 64 Kbyte. Pin EA controls
whether program fetches below address 8000H are done from internal or external memory.
As a new feature the SAB 83C517A-5 offers the possibility of protecting the internal ROM
against unauthorized access. This protection is implemented in the ROM-Mask.Therefore, the
decision ROM-Protection 'yes' or 'no' has to be made when delivering the ROM-Code. Once
enabled, there is no way of disabling the ROM-Protection.
Effect:
The access to internal ROM done by an externally fetched MOVC instruction
is disabled. Nevertheless, an access from internal ROM to external ROM is possible.
To verify the read protected ROM-Code a special ROM-Verify-Mode is implemented. This
mode also can be used to verify unprotected internal ROM.
ROM -Protection
ROM-Verification Mode
(see 'AC Characteristics')
Restrictions
no
ROM-Verification Mode 1
(standard 8051 Verification Mode)
ROM-Verification Mode 2
–
yes
ROM-Verification Mode 2
– standard 8051
Verification Mode is
disabled
– externally applied MOVC
accessing internal ROM
is disabled
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAB80C517A-N18-T3 | 8-Bit CMOS Single-Chip Microcontroller |
| SAB83C517A-N18-T4 | 8-Bit CMOS Single-Chip Microcontroller |
| SAB82289-6-P | Bus Arbiter for SAB80286 Processors |
| SAB82289 | Bus Arbiter for SAB80286 Processors |
| SAB82289-P | Bus Arbiter for SAB80286 Processors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAB80C517AN18T3 | 制造商:Infineon Technologies AG 功能描述:MCU 8-Bit C500 8051 CISC ROMLess 5V 84-Pin PLCC |
| SAB80C517A-N18-T3 | 制造商:Rochester Electronics LLC 功能描述: |
| SAB80C517-M | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Single-Chip Microcontroller |
| SAB80C517-M16 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Single-Chip Microcontroller |
| SAB80C517-M-T40/85 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Single-Chip Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。