參數(shù)資料
型號: DS5001FP
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 微控制器/微處理器
英文描述: 128K Soft Microprocessor Chip(128K軟件微控制芯片)
中文描述: 8-BIT, MICROCONTROLLER, PQFP80
文件頁數(shù): 1/25頁
文件大小: 217K
代理商: DS5001FP
DS5001FP
128K Soft Microprocessor Chip
DS5001FP
021998 1/25
FEATURES
8051 compatible microprocessor adapts to its task
– Accesses up to 128K bytes of nonvolatile SRAM
– In–system programming via on–chip serial port
– Can modify its own program or data memory
– Accesses memory on a separate Byte–wide bus
– Performs CRC–16 check of NV RAM memory
– Decodes memory and peripheral chip enables
Crashproof Operation
– Maintains all nonvolatile resources for over
10 years
– Power–fail Reset
– Early Warning Power–fail Interrupt
– Watchdog Timer
– Lithium backs user SRAM for program/data
storage
– Precision band–gap reference for power
monitor
Fully 8051 Compatible
– 128K bytes scratchpad RAM
– Two timer/counters
– On–chip serial port
– 32 parallel I/O port pins
Software Security Available with DS5002FP Secure
Microprocessor
PIN ASSIGNMENT
P
P3.5/T1
PF
VRST
P3.6/WR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26 2728293031
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
80 79 787776
74
75
7372717069 686766 65
3233343536 373839
DS5001FP
P2.6/A14
CE4
BD3
P2.5/A13
BD2
P2.4/A12
BD1
P2.3/A11
BD0
VLI
BA15
GND
P2.2/A10
P2.1/A9
P2.0/A8
XTAL1
XTAL2
P3.4/T0
P0.4/CE2
BA9
P0.3/AD3
BA8
P0.2/AD2
BA13
P0.1/AD1
R/W
P0.0/AD0
VCC0
VCC
MSEL
P1.0
BA14
P1.1
BA12
P1.2
BA7
PE3
PE4
BA6
P
B
P
B
P
B
P
B
R
B
P
B
P
P
P
B
P
P
B
P
C
N
B
A
B
P
B
P
B
PE2
P
C
DESCRIPTION
The DS5001FP is an 8051 compatible microprocessor
based on nonvolatile RAM technology. It is designed for
systems that need large quantities of nonvolatile
memory. Like its predecessor the DS5000(T), the
DS5001FP is substantially more flexible than a stan-
dard 8051. It provides full compatibility with the 8051
instruction set, timers, serial port, and parallel I/O ports.
By using NV RAM instead of ROM, the user can pro-
gram, then reprogram the microprocessor while in–sys-
tem. The application software can even change its own
operation. This allows frequent software upgrades,
adaptive programs, customized systems, etc. In addi-
tion, by using NV SRAM, the DS5001FP is ideal for data
logging applications. It also connects easily to a Dallas
Real Time Clock for time stamp and date.
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