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參數(shù)資料
| 型號： | DS87C530-QCL |
| 英文描述： | EPROM MICRO WITH REAL TIME CLOCK |
| 中文描述： | 微型存儲器與實時時鐘 |
| 文件頁數(shù)： | 24/40頁 |
| 文件大小： | 435K |
| 代理商： | DS87C530-QCL |
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DS87C530
022197 24/40
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 selec-
tions. The bits in the Option Control Register have the
following function:
Bit 7 –4 Reserved, program to a 1.
Bit 3
function is disabled on power–up. Set=0; Watchdog
reset function is enabled automatically.
Watchdog POR default. Set=1; Watchdog reset
Bit 2–0
Reserved. Program to a 1.
SIGNATURE
The Signature bytes identify the product and program-
ming revision to EPROM programmers. This informa-
tion is at programming addresses 30h, 31h, and 60h.
This information is as follows::
Address
30h
31h
60h
Value
DAh
30h
01h
Meaning
Manufacturer
Model
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
H
H
H
H
Verify Code Data
H
L
H
H
L
L
L
H
H
Program Encryption Array
Address 0–3Fh
H
L
PL
12.75V
L
H
H
L
H
Program Lock Bits
LB1
H
L
PL
12.75V
H
H
H
H
H
LB2
H
L
PL
12.75V
H
H
H
L
L
LB3
H
L
PL
12.75V
H
L
H
H
L
Program Option Register
Address FCh
H
L
PL
12.75V
L
H
H
L
L
Read Signature or Option
Registers 30, 31, 60, FCh
H
L
H
H
L
L
L
L
L
* PL indicates pulse to a logic low.
EPROM LOCK BITS
Table 11
LEVEL
LOCK BITS
PROTECTION
LB1
LB2
LB3
1
U
U
U
No program lock. Encrypted verify if encryption table was pro-
grammed.
2
P
U
U
Prevent MOVC instructions in external memory from reading pro-
gram bytes in internal memory. EA is sampled and latched on reset.
Allow no further programming of EPROM.
3
P
P
U
Level 2 plus no verify operation. Also, prevent MOVX instructions in
external memory from reading SRAM (MOVX) in internal memory.
4
P
P
P
Level 3 plus no external execution.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS87C530-QCL+ | 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 |
| DS87C530-QEL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS87C530-QNL | 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 |
| DS87C530-QNL+ | 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 |
| DS87C530Z+ECL | 制造商:Maxim Integrated Products 功能描述:MICRO OTP RTC 33MHZ 52P TQFP PB-FRR - Trays |
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