DS5001FP_05 Datasheet, PDF (1/27 Pages) Dallas Semiconductor – 128k Soft Microprocessor Chip

DS5001FP
128k Soft Microprocessor Chip
www.maxim-ic.com
FEATURES
§ 8051-Compatible Microprocessor Adapts to Its
Task
- Accesses up to 128kB of nonvolatile SRAM
- In-system programming through 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
§ High-Reliability 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 bandgap reference for power
monitor
§ Fully 8051 Compatible
– 128kB scratchpad RAM
– Two timer/counters
– On-chip serial port
– 32 parallel I/O port pins
§ Software Security Available with DS5002FP
Secure Microprocessor
PIN CONFIGURATIONS
TOP VIEW
P0.4AD4
CE2
PE2
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
P1.3
PE3
PE4
BA6
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
1
64
2
63
3
62
4
61
5
60
6
59
7
58
8
57
9
56
10
DS5001FP
55
11
54
12
53
13
52
14
51
15
50
16
49
17
48
18
47
19
46
20
45
21
44
22
43
23
42
24
41
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
P2.6/A14
CE3
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
P3.7/RD
P3.6/WR
P3.5/TI
PF
VRST
P3.4/T0
MQFP
This data sheet must be used in conjunction with the Secure
Microcontroller User’s Guide, available on our website at
www.maxim-ic.com/microcontrollers. The user’s guide contains
operating information, whereas the data sheet contains ordering
information, pinout, and electrical specifications
MQFP
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
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REV: 070605