參數(shù)資料
型號： DS87C530-ECL
廠商： DALLAS SEMICONDUCTOR
元件分類： Microcontroller
英文描述： 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQFP52
封裝： TQFP-52
文件頁數(shù)： 20/44頁
文件大?。?/td> 754K
代理商： DS87C530-ECL
DS87C530/DS83C530
27 of 44
This results in a true representation of the EPROM while the Encryption is unprogrammed (FFh). Once
the Encryption Array is programmed in a non-FFh state, the verify value will be encrypted.
For encryption to be effective, the Encryption Array must be unknown to the party that is trying to verify
memory. The entire EPROM also should be a non-FFh state or the Encryption Array can be discovered.
The Encryption Array is programmed as shown in Table 10. Note that the programmer can not read the
array. Also note that the verify operation always uses the Encryption Array. The array has no impact
while FFh. Simply programming the array to a non-FFh state will cause the encryption to function.
OTHER EPROM OPTIONS
The DS87C530 has user selectable options that must be set before beginning software execution. These
options use EPROM bits rather than SFRs.
Program the EPROM selectable options as shown in Table 10. The Option Register sets or reads these
selections. The bits in the Option Control Register have the following function:
Bit 7 -4 Reserved, program to a 1.
Bit 3 Watchdog POR default. Set=1; Watchdog reset function is disabled on power-up. Set=0; Watchdog
reset function is enabled automatically.
Bit 2-0 Reserved. Program to a 1.
SIGNATURE
The Signature bytes identify the product and programming revision to EPROM programmers. This
information is at programming addresses 30h, 31h, and 60h. This information is as follows::
Address
Value
Meaning
30h
DAh
Manufacturer
31h
30h
Model
60h
01h
Extension
EPROM PROGRAMMING MODES Table 10
MODE
RST
PSEN
ALE/ PROG
EA/VPP
P2.6
P2.7
P3.3
P3.6
P3.7
Program Code Data
H
L
PL
12.75V
L
HHHH
Verify Code Data
H
L
H
L
H
Program Encryption
Array Address 0-3Fh
H
L
PL
12.75V
L
H
L
H
LB1
H
L
PL
12.75V
H
HHHH
LB2
H
L
PL
12.75V
H
L
Program Lock
Bits
LB3
H
L
PL
12.75V
H
L
H
L
Program Option
Register Address FCh
H
L
PL
12.75V
L
H
L
Read Signature or
Option Registers 30,
31, 60, FCh
H
L
H
L
LLLL
* PL indicates pulse to a logic low.
相關(guān)PDF資料
PDF描述
DS87C520-MCL 8-BIT, OTPROM, MICROCONTROLLER, PDIP40
DS87C520-QNL 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQCC44
DS87C520-QCL 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQCC44
DS87C520-ECL 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQFP44
DS87C520-MNL 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PDIP40
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS87C530-ECL+ 功能描述:8位微控制器 -MCU EPROM MCU w/RTC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
DS87C530-ENL 功能描述:8位微控制器 -MCU EPROM MCU w/RTC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
DS87C530-ENL+ 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EPROM/ROM Microcontrollers with Real-Time Clock
DS87C530-KCL 功能描述:8位微控制器 -MCU EPROM MCU w/RTC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
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