- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374691 > SAB-C505CA-4EM (SIEMENS A G) 8-Bit CMOS Microcontroller PDF資料下載
參數(shù)資料
| 型號： | SAB-C505CA-4EM |
| 廠商： | SIEMENS A G |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-Bit CMOS Microcontroller |
| 中文描述： | 8-BIT, OTPROM, 20 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | PLASTIC, MQFP-44 |
| 文件頁數(shù)： | 57/85頁 |
| 文件大?。?/td> | 335K |
| 代理商： | SAB-C505CA-4EM |
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頁當(dāng)前第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頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁
Semiconductor Group
57
1997-12-01
C505 / C505C
C505A / C505CA
Lock Bits Programming / Read
The C505A/C505CA has two programmable lock bits which, when programmed according
table 14
,
provide four levels of protection for the on-chip OTP code memory. The state of the lock bits can
also be read.
Table 13
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 14
Read OTP lock bits
H
Read OTP version byte
H
L
H
Byte addr.
of version
byte
D0-7
Table 14
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 C505A/C505CA, the state of the EA pin is not latched on
reset.
1
0
Level 1
During normal operation of the C505A/C505CA, MOVC
instructions executed from external program memory are
disabled from fetching code bytes from internal memory. EA is
sampled and latched on reset. An OTP memory read operation
is only possible using the ROM/OTP verification mode 2 for
protection level 1. Further programming of the OTP memory is
disabled (reprogramming security).
0
1
Level 2
Same as level 1, but also OTP memory read operation using
OTP verification mode is disabled.
0
0
Level 3
Same as level 2; but additionally external code execution by
setting EA=low during normal operation of the C505A/C505CA
is no more possible.
External code execution, which is initiated by an internal
program (e.g. by an internal jump instruction above the ROM
boundary), is still possible.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAB-C505C-2RM | Circular Connector; Body Material:Aluminum; Series:PT06; No. of Contacts:5; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Circular Contact Gender:Pin; Insert Arrangement:18-5 |
| SAF-C505C-2RM | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:5; Connector Shell Size:18; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight |
| SAB-C505A-4EM | 8-Bit CMOS Microcontroller |
| SAF-C505A-4EM | 8-Bit CMOS Microcontroller |
| SAF-C505-2RM | 8-Bit CMOS Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAB-C505CA-4EM CA | 功能描述:8位微控制器 -MCU 8 BIT OTP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| SAB-C505CA-4EM CATR | 制造商:Infineon Technologies AG 功能描述: |
| SABC505CA4EMCA | 制造商:Infineon Technologies AG 功能描述: 制造商:Rochester Electronics LLC 功能描述: |
| SAB-C505CA-4EMCA | 功能描述:8位微控制器 -MCU 8 BIT OTP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| SABC505CA4EMCAXT | 制造商:Infineon Technologies AG 功能描述:MCU 8-Bit C500 8051 CISC 32KB EPROM 5V 44-Pin MQFP Ammo |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。