參數(shù)資料
型號(hào): DS83C530-QNL
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: Microcontroller
英文描述: 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PQCC52
封裝: PLASTIC, LCC-52
文件頁數(shù): 24/45頁
文件大?。?/td> 649K
代理商: DS83C530-QNL
DS87C530/DS83C530 EPROM/ROM Microcontrollers with Real-Time Clock
30 of 45
Table 9. EPROM Programming Modes
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
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
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
* PL indicates pulse to a logic low.
Table 10. EPROM Lock Bits
LOCK BITS
LEVEL
LB1
LB2
LB3
PROTECTION
1
U
No program lock. Encrypted verify if encryption table was
programmed.
2
P
U
Prevent MOVC instructions in external memory from reading
program bytes in internal memory.
EA is sampled and latched on
reset. Allow no further programming of EPROM.
3
P
U
Level 2 plus no verify operation. Also, prevent MOVX instructions in
external memory from reading SRAM (MOVX) in internal memory.
4
P
Level 3 plus no external execution.
相關(guān)PDF資料
PDF描述
DS87C530-QNL 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQCC52
DS83C530-QCL 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PQCC52
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