- MM23SC221 or popularly known as 221 module is a secured memory chip DESIGNED in Malaysia by Malaysia Microelectronic Solutions Sdn Bhd (My-MS).
- This module is primarily used for prepaid Payphone smart cards. This product has been QUALIFIED and used by various multinational telecom operators for their existing payphone terminals.
- We have shipped millions of units of 221 modules to smart card manufacturers & other end users (Telcos) worldwide.
- MM23SC221 is the ONLY compatible payphone chip / module worldwide that is available today.
- Our solution works with the existing payphone terminals.
- Fixed Line Operators do not incur additional investment for new infrastructure.
- It is reliable & robust under normal use and handling.
- We are able to ship our products within reasonable delivery lead time to meet customers’ expectation.
- As the product owner, we can customize the manufacturer’s byte code / special header based on your requirement. We offer high quality products at competitive prices.
- MM23SC221 consists of 221 bits of EEPROM, 16 bit ROM and security features suitable for prepaid telephone cards.
- The EEPROM and ROM areas are used to store identification data, user data and counter.
- MM23SC221 is also equipped with security features, which include authentication module, anti-tearing protection, voltage and frequency sensor detection and anti-hacking preventing signal or physical analysis
MEMORY 221 bit EEPROM and 16 bit mask programmable ROM
104 bit user memory
64 bit identification area consists of
16 bit Mask ROM
48 bit PROM for personalization data
40 bit PROM / EEPROM counter includes 1 bit for personalization
133 bit advanced feature memory
4 bit backup counter for anti-tearing purpose
1 bit for authentication control
16 bit Data Area 1
8 bit Authentication Key 1
8 bit Authentication Key2 with 16 bit unused address or 64 bit Data Area 2
Counter of 21064
SECURITY
Anti tearing feature for counter
Transport code protection
Anti-hacking of signal and physical attacks
Voltage sensor detection
Frequency sensor detection
GENERAL
Single power supply voltage 4.5V to 5.5V
Low power operation 3 mA typical active current
5 ms EEPROM programming time
3-wire serial interface
Contact configuration and serial interface, ISO standard 7816 (Synchronous Transmission) compatible
High ESD protection: > 4 KV
High reliability: 100,000 erase/write cycles
10 years of data retention
Operating temperature range -20oC to +80oC
BLOCK DIAGRAM
MODULE REEL
PACKING METHOD
Company Information
TECHNOLOGY AND INNOVATION
We specialize in the design, development and marketing of Smartcard IC, Microcontroller IC, non-volatile memory (NVM) and custom IC devices.
HIGHLY EXPERIENCED ENGINEERING TALENTS
Driven by highly experienced engineering talents, we successfully developed the 1Malaysia Smart chip, a highly secured flash-based micro controller smart card IC for Malaysian National Identification Card (MyKAD). Our extensive offering includes Secured Memory IC, EEPROMS, Contactless Cards, as well as the provision of Custom IC Design and Failure Analysis Services.
BUSSINESS PARTNERS AROUND THE WORLD
With business partners in different regions, our customer base spans globally. Our World-Class manufacturing partners, which are located in Netherlands, Singapore, Taiwan, China and Malaysia, complete our semiconductor supply-chain in the areas of wafer fabrication, IC packaging, and assembly and test.
MALAYSIA NATIONAL ID CARD
My-MS has been tasked to develop the smart card IC for Malaysia National ID with the highest security and dedicated crypto-on-chip integrated into a Flash-based MCU.
