Document
IC Card EEPROMs
MN63151
EEPROM for IC Cards
Overview
The MN63151 is an EEPROM for use in IC cards. It features security features and an address specification system using opcode input. Low cost combined with high security makes the chips ideal for use in prepaid cards and other types of IC cards.
Pad Assignment
GND
1
5 4
VDD RST CLK
Features
Easy-to-use control system • Address specification system using opcode input over a 3-wire interface (CLK, I/O, and RST) • Automatic erasing and writing using a single 5 volt power supply Flexible memory-layout The memory is divided into 11 areas. Six areas containing 116 bytes are freely available. Advanced security features • Verification of IC card authenticity The IC passes entered data through a random number generator circuit on its way to output to provide a check of card validity. • Protection against malicious experimentation Four or more unsuccessful attempts to access the IC card render it permanently unusable. • Protection of individual memory areas on the card Read or write access to a memory area requires matches for both security and condition codes. There is also a condition code for permanently disabling re-writes. • Mixed configuration of EPROM and EEPROM Individual areas consist of EPROM or EEPROM. High reliability • Write cycles: 10,000 times • Data storage interval: 10 years
I/O
2
3
(TOP VIEW)
Note: This product is sold as wafers.
Applications
IC cards www.DataSheet4U.com
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MN63151
Block Diagram
IC Card EEPROMs
GND
1 Memory (64 × 16) Address decoder
5 VDD
Data register Random number generator 3 CLK Mode decode-logic
Data I/O buffer
2 I/O
4 RST
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IC Card EEPROMs
Pin Descriptions
Pin No. 1 2 3 4 5 Symbol GND I/O CLK RST VDD Pin Name Ground Data I/O Clock Reset Power supply I/O Direction I I/O I I I
MN63151
Electrical Characteristics
VCC=4.5 to 5.5V, Ta=–10˚C to +70˚C
Parameter Power supply voltage "L" level input leakage current "H" level input leakage current VCC power supply current (during operation) VCC power supply current (during standby)
Symbol VCC ILIL ILIH ICC ISB
Test Conditions
min 4.5 –10 –10
max 5.5 10 10 5.45 0.18
Unit V µA µA mA mA
VCC=5.5V CLK=800kHz CLK="L" I/O="H"
— —
Notes 1: I/O pins use N-channel, open drain configuration. 2: Input voltages, output voltages, and other items not listed above conform to ISO/IEC 7816-3.
Function Descriptions
Instruction READ WRITE VERIFY RNGEN RESET EWEN Start Bit 0 0 0 0 0 0 Operation Code 10 01 11 00 11 00 Address A5, A4–A0 A5, A4–A0 001010 001010 111111 1xxxxx Data D0, D1–D31 D0, D1–D15 D0, D1–D31 D0, D1–D31 DO0, DO1–DO31 — — Contents Read Write Verify code
Verify code, generate random number
Reset Enable write
Note: x means "don’t care".
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MN63151
Memory Layout
Area A B C D E F G H I1 I2 J K Contents Chip manufacturer's code Card manufacturer's code Spare area 1 Spare area 2 Spare area 3 Spare area 4 Security code Error counter Condition code 1 Condition .