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Microchip Technology SEC1200-CN-02
- Part No.:
- SEC1200-CN-02
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
SEC1200-CN-02.pdf
- Description:
- IC INTERFACE SPECIALIZED 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,069
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Product details
Overview
SEC1200-CN-02 from SMSC is a dual-interface smart card bridge IC integrating full-speed USB 2.0, SPI, and UART interfaces with an enhanced 8051 microcontroller. It supports two ISO/IEC 7816-compliant smart card slots (Class A/B/C/AB), delivers up to 826 Kbps ETU rate, features 16 KB OTP ROM and 1.5 KB RAM, and operates from 3.0 V–5.5 V - enabling secure dual-card readers for financial terminals and identity authentication systems.
For engineers reviewing the SEC1200-CN-02 datasheet, SEC1200-CN-02 pinout, SEC1200-CN-02 application, or SEC1200-CN-02 equivalent, key selection criteria include dual smart card support, EMV 4.2 timing compliance, integrated 12 MHz SPI master/slave, 1 Mbaud UART capability, and 24-pin QFN package with 5.0 V-tolerant I/Os for industrial reader design.
Technical Context
The SEC1200-CN-02 implements a hardened 8051 core running at up to 16 MHz with three 16-bit timers, JTAG debug, and OTP-based firmware execution. Its dual ISO/IEC 7816 interfaces each provide independent T=0/T=1 protocol handling, 259-byte full-packet FIFOs, programmable clock generation, and hardware-managed activation/deactivation sequences compliant with EMV timing constraints.
USB functionality includes a fully integrated full-speed (12 Mbps) device controller with five configurable bulk/interrupt endpoints and on-chip 1.5 kΩ pull-up resistor. SPI supports master/slave modes up to 12 MHz, while UART offers standard PC baud rates plus 1 Mbaud high-speed mode - all accessible via SFR/XDATA register space without external clocking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Smart Card Interfaces | Two independent ISO/IEC 7816 ports supporting Class A/B/C/AB cards (1.8 V/3.0 V/5.0 V) |
| Max Data Rate (ETU) | 826 Kbps - enables high-throughput EMV transaction processing in dual-card environments |
| USB Interface | Full-Speed (12 Mbps), USB 2.0-compliant device controller with five programmable endpoints |
| SPI Performance | Master/slave operation up to 12 MHz - sufficient for direct connection to secure elements or flash memory |
| UART Baud Rate | Up to 1 Mbaud (non-PC standard) - supports high-speed host-to-bridge communication in embedded readers |
| Memory | 16 KB OTP ROM for firmware storage; 1.5 KB RAM for runtime data and protocol stack execution |
| Supply Voltage | 3.0 V–5.5 V - allows direct operation from USB VBUS or industrial 3.3 V/5 V rails without LDO redesign |
Pinout & Package
SEC1200-CN-02 is housed in a 24-pin QFN package (5 mm × 5 mm body, 0.5 mm pitch) with exposed thermal pad. The package supports reflow soldering and provides 5.0 V-tolerant I/Os for robust interface connectivity in noisy terminal environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD33 | Core Power Supply | 3.3 V internal regulator input; powers USB PHY, CPU, and digital logic |
| VDDIO | I/O Power Supply | 3.0 V–5.5 V tolerant supply for GPIO, UART, SPI, and smart card I/O buffers |
| D+ | USB Differential Signal | Full-speed USB data+ line with integrated 1.5 kΩ pull-up resistor |
| D− | USB Differential Signal | Full-speed USB data− line; requires 90 Ω differential impedance routing |
| SC1_CLK / SC2_CLK | Smart Card Clock Outputs | Individually programmable clock outputs (1–5 MHz) for two card slots |
| SC1_IO / SC2_IO | Smart Card I/O Lines | Half-duplex bidirectional data lines with automatic direction control per ISO/IEC 7816 |
| SC1_RST / SC2_RST | Smart Card Reset Outputs | Hardware-controlled reset pulses meeting EMV cold/warm reset timing requirements |
| SCLK / MOSI / MISO / SS1 / SS2 | SPI Interface Terminals | Supports dual slave select for daisy-chained peripherals; 12 MHz max clock frequency |
| TXD / RXD / RTS / CTS | UART Signals | 16550-compatible interface with hardware flow control and 1 Mbaud capability |
Key Features
| Feature | Design Value |
|---|---|
| Dual Smart Card Support | Independent ISO/IEC 7816 interfaces with separate power regulation, clock generation, and protocol timers for concurrent EMV transactions |
| EMV Timing Compliance | Hardware-enforced guard time (GT), character wait time (CWT), and block wait time (BWT) per EMV 4.2 specification |
| FIFO-Based Protocol Handling | 259-byte transmit/receive FIFO per card slot with byte-granular threshold programming and timeout flush interrupt |
| Self-Clocking Architecture | Integrated 48 MHz oscillator eliminates need for external crystal - reduces BOM count and board area in compact readers |
| Smart Card Power Management | On-chip regulators deliver 1.8 V/3.0 V/5.0 V to cards; over-current sense interrupt triggers safe deactivation on short-circuit events |
Applications
| Financial Point-of-Sale Terminal | Government ID Card Reader |
|---|---|
Use Scenario: Dual-slot EMV-compliant payment terminal accepting chip-and-PIN and contactless companion cards simultaneously. IC Role / Device Role / Timing Role: SEC1200-CN-02 acts as the central bridge between host processor and two smart cards, managing T=1 protocol exchanges, USB enumeration, and real-time EMV timing constraints. Use Value: Enables single-chip dual-card support without external FPGA or discrete level shifters - reducing bill-of-materials cost by ~30% versus multi-chip solutions. |
Use Scenario: National eID reader used at border control kiosks requiring simultaneous verification of passport and biometric token. IC Role / Device Role / Timing Role: SEC1200-CN-02 serves as the secure interface controller, executing ISO/IEC 7816-3 APDU exchanges and enforcing EMV-defined guard time and CWT limits. Use Value: Hardware-accelerated protocol timers eliminate software timing jitter - ensuring consistent <180 ms worst-case response required for ICAO ePassport compliance. |
| Banking ATM Card Module | Secure Access Control Reader |
Use Scenario: High-reliability ATM module reading primary bank card and secondary loyalty card during same session. IC Role / Device Role / Timing Role: SEC1200-CN-02 manages independent power sequencing, cold/warm resets, and card removal detection for both slots using dedicated SCx_VCC regulators. Use Value: Integrated current-limiting and hardware deactivation prevent card damage during hot insertion - extending field lifetime beyond 100,000 cycles. |
Use Scenario: Physical access system verifying employee badge and cryptographic token before granting facility entry. IC Role / Device Role / Timing Role: SEC1200-CN-02 bridges host MCU to two smart cards via SPI, offloading APDU parsing and EMV timer management from main application processor. Use Value: 12 MHz SPI interface enables sub-100 µs command turnaround - critical for low-latency door unlock response under strict security policy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SEC1202-HZE-02 | 48-pin QFN; adds second SPI interface and SAM2 secure module interface; higher pin count and larger footprint | Targeted at high-security applications requiring tamper-resistant secure element co-processing | Select SEC1202-HZE-02 only when SAM2 interface or dual SPI buses are required - otherwise SEC1200-CN-02 offers optimal cost/performance balance |
| FT4232HL | Quad USB-to-serial/FIFO bridge; no native ISO/IEC 7816 support; requires external FPGA or MCU for smart card protocol handling | Suitable for custom smart card readers where firmware flexibility outweighs EMV certification burden | Choose FT4232HL only if full control over protocol stack implementation is needed - SEC1200-CN-02 delivers certified EMV timing out-of-box |
Compared with SEC1202-HZE-02 and FT4232HL, SEC1200-CN-02 uniquely integrates dual ISO/IEC 7816 interfaces with hardware EMV timing enforcement and full-speed USB in a compact 24-pin QFN - eliminating external components required for certification-ready dual-card reader designs.
Availability
SEC1200-CN-02 is available at Aetrix Electronics and suitable for financial point-of-sale terminals, government ID readers, banking ATM modules, and secure access control systems requiring stable component supply across multi-year production cycles.
Supply support for SEC1200-CN-02 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
SMSC (Standard Microsystems Corporation) was a fabless semiconductor company specializing in connectivity, embedded control, and interface solutions before its acquisition by Microchip Technology in 2012. Its legacy products remain widely deployed in secure transaction systems.
The SEC1200-CN-02 belongs to SMSC's Smart Card Bridge product line, engineered specifically for EMV-certifiable dual-interface readers that require integrated USB, SPI, and UART bridging with zero external timing components.
FAQ
What is the operating temperature range for SEC1200-CN-02?
The SEC1200-CN-02 is rated for commercial temperature operation from 0°C to +70°C. This range aligns with typical indoor deployment conditions for financial terminals and ID readers. The device incorporates internal thermal monitoring and power management circuitry to maintain stable operation across this range without external heatsinking or derating.
Does SEC1200-CN-02 support both T=0 and T=1 smart card protocols?
Yes, SEC1200-CN-02 fully supports both T=0 and T=1 protocols on each of its two smart card interfaces. It implements all required EMV 4.2 timing parameters - including guard time (GT), character wait time (CWT), and block wait time (BWT) - in hardware, eliminating software timing dependencies and ensuring certification readiness.
Is an external crystal required for SEC1200-CN-02 operation?
No, SEC1200-CN-02 uses an integrated 48 MHz self-clocking oscillator and requires no external crystal. This simplifies layout, reduces component count, and improves reliability in vibration-prone environments such as ATMs and portable readers - all while maintaining USB full-speed timing accuracy.
What smart card voltage classes does SEC1200-CN-02 support?
SEC1200-CN-02 supports Class A (5.0 V), Class B (3.0 V), Class C (1.8 V), and Class AB (dual-voltage) smart cards. Its on-chip regulators generate precise 1.8 V, 3.0 V, and 5.0 V outputs per slot, and an internal 4.8 V comparator disables Class A support if input voltage falls below specification - preventing unsafe card operation.
Can SEC1200-CN-02 be used in RoHS-compliant designs?
Yes, SEC1200-CN-02 is lead-free and RoHS compliant per IEC 61249-2-21 halogen concentration limits. It meets all applicable EU RoHS directives and carries appropriate environmental compliance documentation from SMSC, now maintained under Microchip Technology's product stewardship program.
SEC1200-CN-02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Smart Card
- Interface:
- SPI, UART, USB
- Voltage - Supply:
- -
- Supplier Device Package:
- 24-QFN (5x5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
SEC1200-CN-02 FAQ
1.How can I place an order for SEC1200-CN-02 through Aetrix?
Please submit a Request for Quotation (RFQ) for SEC1200-CN-02 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SEC1200-CN-02 reliable?
The price and inventory of SEC1200-CN-02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SEC1200-CN-02 is usually 5 days.
3.What payment methods are accepted for SEC1200-CN-02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SEC1200-CN-02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SEC1200-CN-02?
SEC1200-CN-02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SEC1200-CN-02 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SEC1200-CN-02?
For technical support, including SEC1200-CN-02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SEC1200-CN-02 requirements.
6.How does Aetrix verify that SEC1200-CN-02 is sourced from the original manufacturer or authorized distributors?
All SEC1200-CN-02 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SEC1200-CN-02 meets industry standards.
7.What is the process for return or replacement of SEC1200-CN-02?
All SEC1200-CN-02 units undergo pre-shipment inspection (PSI). If there is an issue with SEC1200-CN-02, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SEC1200-CN-02 part is unused and in its original packaging.
Return procedure for SEC1200-CN-02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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