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052599

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

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

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.

DS5002FP

Secure Microprocessor Chip

www.maxim-ic.com

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

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

DS5002FP

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