DS5002FP
Secure Microprocessor Chip
www.maxim-ic.com
FEATURES
·
8051-compatible microprocessor for
secure/sensitive applications
- Access 32, 64, or 128 kbytes of
nonvolatile SRAM for program and/or
data storage
- In-system programming via on-chip serial
port
-
Capable of modifying its own program or
data memory in the end system
Firmware security features
- Memory stored in encrypted form
- Encryption using on-chip 64-bit key
- Automatic true random key generator
- Self Destruct Input (SDI)
- Optional top coating prevents microprobe
(DS5002FPM)
- Improved security over previous
generations
- Protects memory contents from piracy
Crashproof operation
- Maintains all nonvolatile resources for
over 10 years in the absence of power
- Power-fail reset
- Early warning power-fail interrupt
- Watchdog timer
PIN ASSIGNMENT
BA11
P0.5/AD5
PE1
P0.6/AD6
BA10
P0.7/AD7
CE1
NC
CE1N
BD7
ALE
BD6
NC
BD5
P2.7/A15
BD4
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
·
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
DS5002FP
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
P2.6/A14
CE3
CE4
BD3
P2.5/A13
BD2
P2.4/A12
BD1
P2.3/A11
BD0
VLI
SDI
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
DESCRIPTION
The DS5002FP Secure Microprocessor Chip is a secure version of the DS5001FP 128k Soft
Microprocessor Chip. In addition to the memory and I/O enhancements of the DS5001FP, the Secure
Microprocessor Chip incorporates the most sophisticated security features available in any processor. The
security features of the DS5002FP include an array of mechanisms which are designed to resist all levels
of threat, including observation, analysis, and physical attack. As a result, a massive effort would be
required to obtain any information about memory contents. Furthermore, the “soft” nature of the
DS5002FP allows frequent modification of the secure information, thereby minimizing the value of any
secure information obtained by such a massive effort.
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:
http://dbserv.maxim-ic.com/errata.cfm.
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052599
P1.4
BA5
P1.5
BA4
P1.6
BA3
P1.7
PROG
BA2
RST
BA1
P3.0/RXD
BA0
P3.1/TXD
P3.2/INT0
P3.3/INT1
·
DALLAS [ DALLAS SEMICONDUCTOR ]
