參數(shù)資料
型號: SAK-C505L
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-bit CMOS Microcontroller
中文描述: 8位CMOS微控制器
文件頁數(shù): 59/85頁
文件大?。?/td> 487K
代理商: SAK-C505L
C505L
Data Sheet
57
06.99
Lock Bits Programming / Read
The C505L has two programmable lock-bits that, when programmed according to
Table 13
, provide
four levels of protection for the on-chip OTP code memory.
Note: A “1” means that the lock-bit is not programmed. A “0” means that lock-bit is programmed.
Table 12
Access Modes Selection
Access Mode
EA/
V
PP
PROG
PRD
PMSEL
Address
(Port 2)
Data
(Port 0)
1
0
Program OTP memory byte
V
PP
V
IH
V
PP
V
IH
V
IH
H
H
H
A0-7
A8-14
D0-7
Read OTP memory byte
H
Program OTP lock bits
H
H
L
D1,D0 see
Table 13
Read OTP lock bits
H
Read OTP version byte
H
L
H
Byte addr.
of sign. byte
D0-7
Table 13
Lock Bit Protection Types
Lock Bits at D1,D0
Protection
Level
Protection Type
D1
D0
1
1
Level 0
The OTP lock feature is disabled. During normal operation of
the C505L, the state of the EA pin is not latched on reset.
1
0
Level 1
During normal operation of the C505L, MOVC instructions
executed from external program memory are prevented from
fetching code bytes from internal memory. EA is sampled and
latched on reset. An OTP memory read operation is only
possible in the OTP verification mode. Further programming of
the OTP memory is disabled (reprogramming security).
0
1
Level 2
Same as level 1, but OTP memory read operation using OTP
verification mode is disabled.
0
0
Level 3
Same as level 2, but external code execution by setting
EA = low during normal operation of the C505L is not possible.
External code execution, which is initiated by an internal
program (e.g. by an internal jump instruction above the OTP
memory boundary), is still possible.
相關(guān)PDF資料
PDF描述
SAF-C505L-4EM 8-bit CMOS Microcontroller
SAB-C505 8-bit CMOS Microcontroller
SAF-C505L 8-bit CMOS Microcontroller
SAB-C505L 8-bit CMOS Microcontroller
SAF-C505 8-bit CMOS Microcontroller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAK-C515A-4R 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAKC61 制造商:Samson Technologies 功能描述:USB MIDI CONTROLLER KEYBOARD 61 KEY
SAK-C868-1SG BA 功能描述:IC MCU 8BIT 8KB ROM PDSO-28-1 RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:C5xx/C8xx 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C,智能卡,UART/USART,USB 外圍設(shè)備:LED,POR,WDT 輸入/輸出數(shù):9 程序存儲器容量:64KB(64K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件
SAK-C868-1SR 制造商:Infineon Technologies AG 功能描述:8BIT MCU 8K RAM ROM/ROMLESS 868
SAK-C868-1SR BA 功能描述:IC MCU 8BIT 8KB RAM TSSOP-38-1 RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:C5xx/C8xx 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C,智能卡,UART/USART,USB 外圍設(shè)備:LED,POR,WDT 輸入/輸出數(shù):9 程序存儲器容量:64KB(64K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件