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Microchip Technology SEC1100-A5-02
- Part No.:
- SEC1100-A5-02
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
SEC1100-A5-02.pdf
- Description:
- IC INTERFACE SPECIALIZED 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,198
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Product details
Overview
SEC1100-A5-02 from SMSC is a single-chip smart card bridge IC integrating full-speed USB 2.0, ISO/IEC 7816 smart card interface, and enhanced 8051 microcontroller. It supports Class A/B/C/AB cards (1.8 V/3.0 V/5.0 V), T=0/T=1 protocols, 826 Kbps ETU rate, 259-byte FIFO, and operates from 3.0–5.5 V supply. It targets USB-based smart card readers requiring EMV 4.2 and PC/SC compliance.
For engineers reviewing the SEC1100-A5-02 datasheet, SEC1100-A5-02 pinout, SEC1100-A5-02 application, or SEC1100-A5-02 equivalent, key selection criteria include its single smart card port, OTP-ROM-based firmware execution, self-clocked 48 MHz oscillator, integrated smart card power regulation (SC1VCC), and USB device controller with five programmable endpoints.
Technical Context
The SEC1100-A5-02 implements a dedicated ISO/IEC 7816 physical layer with hardware-managed cold/warm resets, EMV-compliant guard/time-out/CWT timers, and automatic card deactivation on removal. Its 8051 core runs at up to 16 MHz with 16 KB OTP ROM and 1.5 KB RAM, accessing peripherals via SFR/XDATA space.
USB functionality includes full-speed (12 Mbps) PHY with integrated 1.5 kΩ pull-up resistor, control endpoint buffer (8/16/32/64 B), and five configurable bulk/interrupt endpoints. Smart card power is regulated internally with SC1VCC output, current limiting, and over-current sense interrupt.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Smart Card Interface | Single ISO/IEC 7816 port supporting T=0/T=1 protocols, EMV 4.2 timing, and Class A/B/C/AB voltage classes |
| USB Interface | Full-speed (12 Mbps) USB 2.0 device controller with integrated PHY and five programmable endpoints |
| Microcontroller Core | Enhanced 8051 running up to 16 MHz; 9× faster instruction cycle vs. standard 80C51 |
| Memory | 16 KB OTP ROM for firmware storage; 1.5 KB RAM including 256 B on-chip RAM |
| FIFO Depth | 259-byte full-packet transmit/receive FIFO with byte-granular threshold and timeout flush interrupt |
| Supply Range | 3.0 V to 5.5 V input; internal 3.3 V/1.2 V/4.8 V regulators; 5.0 V-tolerant I/O pins |
| Smart Card Power | Integrated SC1VCC regulator with current limiting, short-circuit detection, and hardware-guaranteed deactivation sequence |
Pinout & Package
SEC1100-A5-02 is housed in a 5 mm × 5 mm, 16-pin QFN package with exposed thermal pad (3.3 mm × 3.3 mm nominal). Pin pitch is 0.8 mm; overall height is 0.9 mm nominal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD33 | Core Power Supply | 3.3 V supply for USB PHY, digital logic, and internal regulators |
| VDD | Analog/IO Power | 3.0–5.5 V main supply input; powers smart card regulators and 5.0 V-tolerant GPIO |
| SC1VCC | Smart Card Power Output | Programmable 1.8 V / 3.0 V / 5.0 V output for Class A/B/C/AB smart cards |
| SC1RST | Smart Card Reset | Active-low reset signal generated per ISO/IEC 7816 timing requirements |
| SC1CLK | Smart Card Clock | Programmable clock output (1–5 MHz) synchronized to card protocol state |
| SC1I/O | Smart Card Data I/O | Half-duplex bidirectional data line with EMV-compliant timing and parity handling |
| D+ | USB Differential Data+ | Full-speed USB 2.0 differential pair; integrated 1.5 kΩ pull-up enables USB enumeration |
| D− | USB Differential Data− | Full-speed USB 2.0 differential pair; requires external 27 Ω series termination per spec |
Key Features
| Feature | Design Value |
|---|---|
| EMV 4.2 Timing Compliance | Hardware-enforced guard time (GT), character wait time (CWT), and block wait time (BWT) per EMV specification |
| T=0 Protocol Recovery | Automatic character repetition on parity error, internal procedure byte filtering, and synchronous card support |
| Smart Card Power Management | Hardware-guaranteed deactivation sequence on card removal; over-current sense interrupt triggers safe shutdown |
| Self-Clocked Operation | Integrated 48 MHz oscillator eliminates need for external crystal or clock source |
| USB Endpoint Flexibility | Five independently configurable endpoints (bulk/interrupt) with selectable buffer sizes (8/16/32/64 B) |
Applications
| USB Smart Card Reader | Sector-Specific Payment Terminal |
|---|---|
Use Scenario: Desktop or portable reader connecting EMV-compliant payment cards to host PCs via USB. IC Role / Device Role / Timing Role: Primary bridge IC managing ISO/IEC 7816 communication, USB enumeration, and smart card power sequencing. Use Value: Enables certified PC/SC-compliant reader design with no external crystal, minimal BOM, and hardware-enforced EMV timing. | Use Scenario: Embedded point-of-sale terminal processing chip-and-PIN transactions in retail environments. IC Role / Device Role / Timing Role: Secure interface between secure element (SAM) and host processor, enforcing EMV guard/CWT timers and card reset sequences. Use Value: Reduces firmware complexity by offloading protocol timing, card activation/deactivation, and fault recovery to hardware. |
| Government ID Card Reader | Secure Authentication Token |
Use Scenario: Reader for national eID cards (e.g., EU PAdES-compliant identity verification). IC Role / Device Role / Timing Role: Trusted bridge translating USB HID-class commands into ISO/IEC 7816 APDU exchanges with strict T=1 protocol adherence. Use Value: Supports high-assurance authentication via hardware-managed 259-byte FIFO, ESD-protected card interface, and Class AB voltage switching. | Use Scenario: Two-factor authentication token used with enterprise login systems or VPN gateways. IC Role / Device Role / Timing Role: Low-power smart card interface enabling secure credential storage and cryptographic operation via T=0 protocol. Use Value: Delivers deterministic 180 ms software response window and automatic parity recovery-critical for FIDO2/U2F interoperability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SEC1200-CN-02 | Dual smart card ports; adds SPI and UART interfaces; 24-pin QFN package | Supports dual-card readers or hybrid SPI/UART-connected card modules | Select SEC1200-CN-02 only if second smart card interface or SPI/UART bridging is required |
| FTX232HL | USB-to-UART bridge only; no smart card interface, no ISO/IEC 7816 logic, no EMV timers | Limited to UART-based card readers using external smart card controller | FTX232HL requires full external smart card controller implementation and cannot replace SEC1100-A5-02 in USB smart card reader designs |
Compared with SEC1200-CN-02 and FTX232HL, SEC1100-A5-02 uniquely integrates single-port ISO/IEC 7816 + USB 2.0 + EMV timing enforcement in one die-eliminating external protocol logic, reducing PCB area by >40%, and enabling certified USB reader certification without additional timing validation.
Availability
SEC1100-A5-02 is available at Aetrix Electronics and suitable for USB smart card readers, EMV payment terminals, government eID readers, and secure authentication tokens requiring stable component supply and long-term industrial availability.
Supply support for SEC1100-A5-02 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, interface, and embedded control ICs before its acquisition by Microchip Technology in 2012.
The SEC1100-A5-02 belongs to SMSC's secure connectivity product line, designed specifically for certified smart card reader applications requiring integrated USB, ISO/IEC 7816, and EMV-compliant timing control in a single chip.
FAQ
What is the operating temperature range for SEC1100-A5-02?
The SEC1100-A5-02 is rated for commercial temperature operation from 0 °C to +70 °C, as specified in the SEC1100-A5-xx ordering nomenclature and validated across all electrical parameters in the data brief. This range applies to the 16-pin QFN package variant and ensures reliable performance in desktop readers and indoor embedded terminals. SEC1100-A5-02 does not support extended or industrial temperature grades.
Does SEC1100-A5-02 support both T=0 and T=1 smart card protocols?
Yes, SEC1100-A5-02 fully supports both T=0 and T=1 protocols per ISO/IEC 7816-3, including hardware-enforced EMV-defined timing parameters (guard time, CWT, BWT), automatic character repetition for T=0 parity recovery, and internal procedure byte filtering. The SEC1100-A5-02 handles protocol negotiation, APDU framing, and half-duplex handshaking without CPU intervention during exchange phases.
Is an external crystal required for SEC1100-A5-02 operation?
No, SEC1100-A5-02 incorporates a self-clocking 48 MHz internal oscillator and requires no external crystal or clock source. This simplifies board layout, reduces BOM count, and improves system-level EMI performance. The oscillator directly drives the USB PHY, 8051 core, and smart card clock generator, with all timing derived from this single source.
What smart card voltage classes does SEC1100-A5-02 support?
SEC1100-A5-02 supports Class A (5.0 V), Class B (3.0 V), Class C (1.8 V), and Class AB (dual-voltage) smart cards via its programmable SC1VCC output. Voltage selection is controlled in firmware, and the internal 4.8 V comparator disables Class A support if VDD falls below 4.8 V-ensuring safe operation and preventing overvoltage damage to lower-voltage cards.
How many USB endpoints does SEC1100-A5-02 provide?
SEC1100-A5-02 provides five programmable USB endpoints in addition to the mandatory control endpoint (Endpoint 0). These include configurable bulk and interrupt endpoints with selectable buffer sizes of 8, 16, 32, or 64 bytes each. This architecture enables efficient APDU transfer, status reporting, and vendor-specific command handling in USB smart card reader implementations using SEC1100-A5-02.
SEC1100-A5-02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- Smart Card
- Interface:
- SPI Serial, USB, UART
- Voltage - Supply:
- 3V ~ 5.5V
- Supplier Device Package:
- 16-QFN (5x5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
SEC1100-A5-02 FAQ
1.How can I place an order for SEC1100-A5-02 through Aetrix?
Please submit a Request for Quotation (RFQ) for SEC1100-A5-02 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 SEC1100-A5-02 reliable?
The price and inventory of SEC1100-A5-02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SEC1100-A5-02 is usually 5 days.
3.What payment methods are accepted for SEC1100-A5-02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SEC1100-A5-02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SEC1100-A5-02?
SEC1100-A5-02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SEC1100-A5-02 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 SEC1100-A5-02?
For technical support, including SEC1100-A5-02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SEC1100-A5-02 requirements.
6.How does Aetrix verify that SEC1100-A5-02 is sourced from the original manufacturer or authorized distributors?
All SEC1100-A5-02 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 SEC1100-A5-02 meets industry standards.
7.What is the process for return or replacement of SEC1100-A5-02?
All SEC1100-A5-02 units undergo pre-shipment inspection (PSI). If there is an issue with SEC1100-A5-02, 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 SEC1100-A5-02 part is unused and in its original packaging.
Return procedure for SEC1100-A5-02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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