Features
General
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Industry-standard M68HC05 Instruction Set, Including: 8 x 8 Bits Unsigned Multiply
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Instruction, True Bit Manipulation, Memory-mapped I/O
Operating Voltage: 3.0V ± 10% or 5.0V ± 10%
Meets GSM 11.11 & 11.12 Specifications and EMV 2000 Specification
5.0 MHz Maximum Internal Bus Frequency at 3.0V and 5.0V
ESD Protection to ± 4000V
Bond Pad Layout Conforming to ISO Standard ISO/IEC 7816-2
External Maskable Interrupt on ISO Standard I/O Port (PA0)
Power-saving Wait and Very Low-power Stop Modes
Power-up Detection
Available as Sawn Wafers, or in Industry-standard Packages and Modules
Secure
Microcontroller
for Smart Cards
AT05SC3208R
Summary
EEPROM
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8192 Bytes of EEPROM, Including 16 Control Bytes and 48 OTP Bytes
1- to 64-byte Write/Program/Erase
2 ms Program Time, 2 ms Erase Time
10 Years Data Retention
Typically More than 1,000,000 Write/erase Cycles
On-chip Charge Pump for EEPROM Programming, Driven by an Internal Oscillator
ROM and RAM
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32768 Bytes of ROM, Including 16 Bytes Reserved for Vectors
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1024 Bytes of RAM with Security Wipe on Selected Areas
Peripherals
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Single Bidirectional I/O Line (1-bit ISO/IEC 7816-3 Standard I/O Port)
Time Base Circuitry (with Preset and Maskable Interrupt Capabilities)
Watchdog Capability (Under Software Control)
Hardware DES Module (Capable of Single Encryption or Decryption in 16 Clock Cycles)
CRC Module (Allowing Generation of Checksums (ISO/IEC 3309)
Random Number Generator (RNG)
Serial Communications Interface (SCI)
– Compliant with ISO/IEC 7816
– Compliant with T = 0 and T = 1 Protocols
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16-bit Timer with Prescaler and Autoload
Security
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Dedicated Hardware to Resist Power Analysis Attacks
Low and High Voltage Monitors with Narrow Voltage Window Mode
Low and High Temperature Monitors
Low Frequency Monitor
High Frequency Filter/Monitor
Advanced Physical Barrier to Enhance Tamper Resistance
Illegal Access Reset
Illegal Opcode Reset
Memory Partitioning with Address Lockout Reset
Scrambling Logic
Tamper Monitor
Physical Removal of Test Mode when Testing is Complete
Rev. 1554AS–11/01
Note: This is a summary document. A complete document is
available under NDA. For more information, please contact your
local Atmel sales office.
1
Current Development Tools
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Hardware Emulation Module (for the Motorola MMDS05 Development System)
– Emulation Module (AT05SC3208R-EM3)
Description
The AT05SC3208R is a member of Atmel’s AT05SC family of single chip microcontrollers. Designed specifically for Smart-
cards, embedded conditional access systems and other security conscious systems, these devices are based on the
industry-standard M68HC05 low-power core and its instruction set.
The AT05SC3208R is designed to give a high level of protection against physical and power analysis attacks, and includes
hardware features to assist in protecting against SPA and DPA attacks. On-board CRC and RNG modules are provided to
assist in the design of high-security applications.
On-board memory comprises 32768 bytes of ROM, 1024 bytes of RAM and 8192 bytes of EEPROM. The EEPROM fea-
tures 64-byte write, 2 ms program time, 2 ms erase time, typically more than 1,000,000 write/erase cycles, and greater
than 10 years data retention. Application areas for the AT05SC3208R include GSM Mobile Phones, Finance and Set-top
Boxes.
Figure 1.
AT05SC3208R Block Diagram
ROM – 32768 bytes
(including 16 bytes for vectors)
Charge
Pump
RAM – 1024 bytes
EEPROM – 8192 bytes
(including 16 control bytes
and 48 OTP bytes)
EEPROM
Oscillator
DES Module
DPA Logic
Random Number
Generator (RNG)
(1)
CRC Module
CLK
÷
4/2/1
Control Logic
16 Bit Timer
with
prescaler
AT05SC CPU
Security Logic
PA0
Time Base
and
Watchdog
Interrupt
Control
SCI
RESET
VDD
VSS
© Atmel Corporation 2001.
Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Com-
pany’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The
Company assumes no responsibility for any errors which may appear in this document, reserves the right to change
devices or specifications detailed herein at any time without notice, and does not make any commitment to update the
information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Com-
pany in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical compo-
nents in life support devices or systems.
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1554AS–15Nov01
PORT A
DDRA
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