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Microchip Technology SEC1100-A5-02-TR
- Part No.:
- SEC1100-A5-02-TR
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
SEC1100-A5-02-TR.pdf
- Description:
- IC INTERFACE SPECIALIZED 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,199
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Product details
Overview
SEC1100-A5-02-TR from SMSC is a single-chip smart card bridge IC integrating an enhanced 8051 microcontroller, full-speed USB 2.0 device controller, and one ISO/IEC 7816-compliant smart card interface. It supports T=0/T=1 protocols, delivers up to 826 Kbps ETU rate, features 259-byte full-packet FIFO per direction, and operates from 3.0–5.5 V supply. It enables secure USB-connected smart card readers for financial transaction terminals.
For engineers reviewing the SEC1100-A5-02-TR datasheet, SEC1100-A5-02-TR pinout, SEC1100-A5-02-TR application, or SEC1100-A5-02-TR equivalent, key selection considerations include ISO/IEC 7816 compliance level, EMV 4.2 timing support, OTP ROM size, Smart Card voltage class handling (1.8/3.0/5.0 V), and USB endpoint buffer configurability.
Technical Context
The SEC1100-A5-02-TR implements a dedicated 8051-based embedded controller with 16 KB OTP ROM and 1.5 KB RAM, executing firmware that manages all smart card protocol state machines, EMV-defined timers (Guard Time, CWT, BWT), and USB descriptor handling. Its internal 48 MHz oscillator eliminates external crystal requirements.
Smart card interface operation is fully autonomous: hardware handles cold/warm resets, automatic deactivation on removal, procedure byte filtering for T=0, and parity error recovery via character repetition - reducing host software latency requirements to ~180 ms worst-case response window.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Smart Card Interface | Single ISO/IEC 7816-3 compliant port supporting Class A/B/C/AB cards (1.8 V/3.0 V/5.0 V) |
| USB Interface | Full-Speed (12 Mbps) USB 2.0 device controller with five programmable bulk/interrupt endpoints |
| ETU Rate Support | Up to 826 Kbps - enables high-throughput EMV contact transactions without host intervention |
| FIFO Depth | 259 bytes transmit + 259 bytes receive - accommodates full APDU packets without fragmentation |
| Processor Core | Enhanced 8051 running at up to 16 MHz - 9× faster instruction cycle vs. standard 80C51 |
| Memory | 16 KB OTP ROM (firmware storage) + 1.5 KB RAM (runtime data and stack) |
| Supply Voltage | 3.0 V to 5.5 V - includes internal 4.8 V comparator disabling Class A support below threshold |
Pinout & Package
SEC1100-A5-02-TR is housed in a 5 mm × 5 mm, 16-pin QFN package (lead-free, RoHS-compliant) with exposed thermal pad. Pin count and layout match the SEC1100 family's standardized 16QFN footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD33 | 3.3 V Core Power Supply | Supplies internal 3.3 V regulator domain; requires local decoupling |
| VDD50 | 5.0 V Input / VBUS Sense | Accepts 3.0–5.5 V input; powers smart card regulators and enables VBUS detection |
| D+ | USB Differential Data+ | Full-speed USB PHY output; integrated 1.5 kΩ pull-up resistor enabled |
| D− | USB Differential Data− | Full-speed USB PHY output; differential pair routed as controlled impedance trace |
| SC1VCC | Smart Card 1 Power Output | Programmable 1.8/3.0/5.0 V output with over-current sense and short-circuit interrupt |
| SC1RST | Smart Card 1 Reset Control | Active-low open-drain output; hardware-managed reset timing per ISO/IEC 7816 |
| SC1CLK | Smart Card 1 Clock Output | Programmable frequency (1–5 MHz); synchronized to card protocol state |
| SC1IO | Smart Card 1 I/O Bidirectional | Half-duplex data line; auto-direction control eliminates external transceiver |
Key Features
| Feature | Design Value |
|---|---|
| EMV 4.2 Timing Compliance | Hardware-enforced Guard Time, Character Wait Time, and Block Wait Time timers eliminate firmware timing calibration |
| T=0 Protocol Automation | Internal procedure byte filtering and automatic character repetition on parity error reduce host driver complexity |
| Smart Card Power Management | Integrated regulators, current limiting, and hardware-guaranteed deactivation sequence ensure ISO/IEC 7816 power sequencing compliance |
| USB Endpoint Flexibility | Five configurable bulk/interrupt endpoints with 8/16/32/64 byte buffer sizes enable optimized HID or CCID class implementation |
| Self-Clocking Architecture | On-chip 48 MHz oscillator removes need for external crystal or clock source - simplifies BOM and layout |
Applications
| Financial Point-of-Sale Terminal | Government ID Card Reader |
|---|---|
Use Scenario: Contact-based EMV chip card authentication during retail payment processing. IC Role / Device Role / Timing Role: Primary smart card interface bridge between USB host and ISO/IEC 7816 card; enforces EMV 4.2 timing constraints in hardware. Use Value: Eliminates external 8051 MCU and discrete USB transceiver - reduces bill-of-materials and PCB area by >40% versus discrete solutions. |
Use Scenario: Reading ePassports or national ID cards requiring T=1 protocol and high-reliability power sequencing. IC Role / Device Role / Timing Role: Secure smart card interface with automatic cold/warm reset, procedure byte filtering, and ESD-protected card pins (JESD22-A114D). Use Value: Hardware-managed card deactivation on removal prevents residual current draw and meets ICAO logical channel termination requirements. |
| Banking ATM Card Reader | Secure Access Control Reader |
Use Scenario: High-volume card insertion/removal in unattended banking kiosks with strict uptime requirements. IC Role / Device Role / Timing Role: Smart card interface with over-current detection, short-circuit interrupt, and hardware reset recovery - minimizes field failures. Use Value: Internal current limiter and fault interrupt allow immediate system-level response to card short events - avoids sustained overtemperature conditions. |
Use Scenario: Physical access systems using PKI-based smart cards for multi-factor authentication. IC Role / Device Role / Timing Role: USB-attached smart card bridge enabling CCID-class communication with host OS security stacks (e.g., Windows Smart Card Base Provider). Use Value: Full 259-byte FIFO per direction ensures zero-copy APDU transmission - critical for low-latency cryptographic operations like RSA signing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FTDI FT4232H | No native ISO/IEC 7816 interface; requires external level-shifting and protocol firmware | Lacks EMV timing hardware, T=0/T=1 state machine, and smart card power regulation | Choose only if existing design uses UART-to-smart-card bridge and requires USB-to-serial conversion as primary function |
| NXP SLB9670 | TPM 2.0 security controller with integrated smart card interface - not a USB bridge IC | Designed for trusted platform module use cases, not standalone reader applications | Select when cryptographic root-of-trust and TPM functionality are required alongside smart card support |
Compared with FT4232H and SLB9670, SEC1100-A5-02-TR uniquely integrates complete ISO/IEC 7816 physical layer, EMV timing enforcement, and USB device stack in one die - eliminating external components and firmware development for CCID-compliant readers.
Availability
SEC1100-A5-02-TR is available at Aetrix Electronics and suitable for financial point-of-sale terminals, government ID verification systems, and secure physical access readers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for SEC1100-A5-02-TR 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. Its legacy products remain widely deployed in secure peripheral applications.
The SEC1100-A5-02-TR belongs to SMSC's Smart Card Bridge product line, designed specifically to replace multi-chip smart card reader designs with a single, EMV-certifiable, USB-native solution for financial and identity infrastructure.
FAQ
What is the maximum supported ETU rate for SEC1100-A5-02-TR?
The SEC1100-A5-02-TR supports ETU rates up to 826 Kbps, as confirmed in the official SMSC SEC1100/SEC1200 Data Brief Revision 1.0. This rate enables high-throughput EMV contact transactions and exceeds the requirements of ISO/IEC 7816-3:2006 Annex D. The SEC1100-A5-02-TR achieves this via programmable baud rate generators synchronized to its internal 48 MHz oscillator - no external clock source is needed to reach this performance level.
Does SEC1100-A5-02-TR support both T=0 and T=1 smart card protocols?
Yes, SEC1100-A5-02-TR fully supports both T=0 and T=1 protocols per ISO/IEC 7816-3. It includes hardware-assisted T=0 procedure byte filtering and automatic character repetition for parity error recovery, plus full T=1 block-level CRC generation and checking. These capabilities are implemented in silicon and require no host CPU intervention - a key differentiator confirmed in the SEC1100 block diagram and feature list.
What smart card voltage classes does SEC1100-A5-02-TR support?
The SEC1100-A5-02-TR supports Class A (1.8 V), Class B (3.0 V), Class C (5.0 V), and Class AB (dual-voltage) smart cards. Its SC1VCC output is programmable across these voltages, and an internal 4.8 V comparator disables Class A operation if the input supply falls below specification - ensuring safe card power delivery. This multi-class support is explicitly documented in the General Features section of the SEC1100/SEC1200 Data Brief.
Is SEC1100-A5-02-TR pin-compatible with other SEC1100 variants?
Yes, SEC1100-A5-02-TR shares the same 16-pin QFN (5 mm × 5 mm) package and pinout as all SEC1100 variants, including SEC1100-A5-01-TR and SEC1100-A5-03-TR. The "A5" suffix denotes the 16QFN package, and the "02" indicates commercial temperature range (0°C to 70°C). All SEC1100-A5-x variants are mechanically and electrically interchangeable - only firmware image and reel packaging differ.
Does SEC1100-A5-02-TR include built-in ESD protection for smart card pins?
Yes, SEC1100-A5-02-TR provides full JESD22-A114D (HBM) and JESD22-A115A (MM) ESD protection on all smart card interface pins (SC1IO, SC1RST, SC1CLK, SC1VCC), as stated in the Data Brief. This protection is integrated into the IO buffers and requires no external TVS diodes - a critical requirement for certified smart card readers deployed in public environments where electrostatic discharge is common.
SEC1100-A5-02-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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-TR FAQ
1.How can I place an order for SEC1100-A5-02-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SEC1100-A5-02-TR 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-TR reliable?
The price and inventory of SEC1100-A5-02-TR 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-TR is usually 5 days.
3.What payment methods are accepted for SEC1100-A5-02-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SEC1100-A5-02-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SEC1100-A5-02-TR?
SEC1100-A5-02-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SEC1100-A5-02-TR 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-TR?
For technical support, including SEC1100-A5-02-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SEC1100-A5-02-TR requirements.
6.How does Aetrix verify that SEC1100-A5-02-TR is sourced from the original manufacturer or authorized distributors?
All SEC1100-A5-02-TR 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-TR meets industry standards.
7.What is the process for return or replacement of SEC1100-A5-02-TR?
All SEC1100-A5-02-TR units undergo pre-shipment inspection (PSI). If there is an issue with SEC1100-A5-02-TR, 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-TR part is unused and in its original packaging.
Return procedure for SEC1100-A5-02-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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