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Home > Products > Integrated Circuits (ICs) > Interface > Specialized

Microchip Technology SEC1210I-CN-02NC-TR

Name: SEC1210I-CN-02NC-TR
Brand: Microchip Technology
SKU: SEC1210I-CN-02NC-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SEC1210I-CN-02NC-TR

Manufacturer:: Microchip Technology

Category:: Specialized

Package:: 24-VFQFN Exposed Pad

Datasheet:: SEC1210I-CN-02NC-TR.pdf

Description:: SMART CARD BRIDGE TO USB, SPI, A

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Product details

Overview

SEC1210I-CN-02NC-TR from Microchip Technology is a dual Smart Card bridge IC integrating an enhanced 8051 core, two ISO/IEC 7816-compliant Smart Card interfaces (SC1 and SC2), USB 2.0 Full-Speed (12 Mbps) interface, UART, and SPI host controller. It delivers 16 KB OTP ROM, 1.5 KB RAM, programmable Smart Card clock (1.8V/3.0V/5.0V support), and full T=0/T=1 protocol handling - deployed in secure USB dual-card readers and EMV-compliant payment terminals.

For engineers reviewing the SEC1210I-CN-02NC-TR datasheet, SEC1210I-CN-02NC-TR pinout, SEC1210I-CN-02NC-TR application, or SEC1210I-CN-02NC-TR equivalent, key selection criteria include dual Smart Card interface count, USB + UART coexistence capability, OTP-based firmware immutability, industrial temperature range (−40°C to +85°C), and integrated Smart Card power regulation with over-current detection.

Technical Context

The SEC1210I-CN-02NC-TR implements a hardened 8051 microcontroller core running at up to 9.6 MHz, with three 16-bit timers, JTAG debug, and OTP-based firmware storage. Its Smart Card subsystem includes independent protocol timers (Guard, CWT, Timeout), 261-byte full-packet FIFO per interface, hardware-managed cold/warm reset sequences, and automatic card deactivation on removal.

The USB subsystem integrates a full-speed PHY with internal 1.5 kΩ pull-up resistor and series termination, plus a device controller supporting five programmable endpoints (8/16/32/64 byte buffers). The UART supports standard PC baud rates up to 115.2 kbps and a non-PC 3 Mbps mode; SPI operates at ≤12 MHz in host mode with MISO/MOSI/CLK/CE pins multiplexed with UART signals.

Key Specifications

Parameter	Value and Actual Design Meaning
Smart Card Interfaces	Two independent ISO/IEC 7816-3 compliant ports (SC1 & SC2), each supporting Class A/B/C/AB cards (1.8V/3.0V/5.0V)
USB Interface	Full-Speed (12 Mbps) USB 2.0 Device Controller with integrated PHY, 1.5 kΩ D+ pull-up, and five programmable bulk/interrupt endpoints
Processor Core	Enhanced 8051 with ~9× instruction throughput vs. legacy 80C51; max 9.6 MHz clock; 16 KB OTP ROM + 1.5 KB RAM
Communication Peripherals	UART (up to 3 Mbps) and SPI host (≤12 MHz), both multiplexed on same 4-pin interface; no external crystal required
Smart Card Timing Compliance	EMV 4.2/4.3 and ETSI TS 102 221 certified; built-in guard/CWT/timeout timers; automatic parity error recovery and unresponsive card detection
Operating Temperature	Industrial grade: −40°C to +85°C; supply voltage range 3.6V–5.5V with internal 4.8V comparator disabling Class A card support below threshold
ESD Protection	JESD22-A114D (HBM) and JESD22-A115A (MM) compliant on all Smart Card pins; no external protection components needed

Pinout & Package

SEC1210I-CN-02NC-TR is housed in a 24-pin QFN package (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal slug connected to VSS. All pins are electrically validated per Microchip DS00001561E.

Pin/Terminal	Circuit Role	Design Meaning
SC1_VCC / SC2_VCC	Smart Card Power Output	Programmable 1.8V/3.0V/5.0V supply for both Smart Card slots; internal regulator with over-current sense interrupt
SC1_RST_N / SC2_RST_N	Smart Card Reset Control	Active-low hardware reset triggering ATR generation; configurable as GPIO2/GPIO18 when interface disabled
SC1_CLK / SC2_CLK	Smart Card Clock Output	Configurable clock source for T=0/T=1 protocols; configurable as GPIO1/GPIO17
SC1_IO / SC2_IO	Smart Card Data I/O	Bidirectional half-duplex serial data path; automatic turnaround; configurable as GPIO0/GPIO16
SC1_PRSNT_N / SC2_PRSNT_N	Smart Card Presence Detection	Active-low card detect with software-controllable internal pull-up; shared with JTAG_TMS/JTAG_TDI
USB_DP / USB_DM	USB Differential Data	Integrated FS PHY with internal series termination resistors and 1.5 kΩ D+ pull-up; no external components required
SPI1_MISO/RXD, SPI1_MOSI/TXD, SPI1_CLK/CTS_OUT, SPI1_CE/RTS_IN	Multiplexed Host Interface	4-pin interface supporting either SPI host (≤12 MHz) or UART (up to 3 Mbps); pin functions selectable via configuration registers
RESET_N	Global Active-Low Reset	Asynchronous system reset input (min. 1 µs pulse); enters STOP mode when asserted during operation

Key Features

Feature	Design Value
Dual Smart Card Bridge Architecture	Independent SC1 and SC2 interfaces with separate FIFOs (261 bytes each), protocol timers, and power control - enables true concurrent dual-card operation without resource contention
EMV-Compliant Hardware Sequencing	Hardware-enforced cold/warm reset, activation/deactivation, and timing constraint monitoring per EMV 4.2/4.3 - eliminates software timing-critical code paths
Self-Contained Smart Card Power Management	On-chip regulators deliver 1.8V/3.0V/5.0V to cards; current limiting with short-circuit detect interrupt; automatic deactivation on card removal regardless of CPU state
OTP-Based Firmware Security	16 KB One-Time Programmable ROM ensures immutable, tamper-resistant firmware execution - critical for secure transaction environments
Flexible Host Connectivity	Single 4-pin interface supports either SPI host (for MCU-hosted systems) or UART (for PC-connected readers), reducing BOM and layout complexity
No External Clock Required	Internal self-clocking oscillator eliminates need for external crystal or resonator - reduces component count and board space

Applications

EMV Payment Terminal	Secure Dual-Slot USB Reader
Use Scenario: Contact-based credit/debit card transactions in point-of-sale (POS) terminals requiring simultaneous support for primary and backup Smart Cards. IC Role / Device Role / Timing Role: Dual Smart Card bridge managing independent T=1 protocol exchanges, EMV timing compliance, and USB HID-class reporting to host. Use Value: Enables redundant card acceptance with zero software intervention between SC1/SC2 operations; hardware-guarded timing ensures EMV certification pass.	Use Scenario: Desktop or kiosk-based identity verification using two Smart Cards (e.g., national ID + PKI certificate card) over USB interface. IC Role / Device Role / Timing Role: USB device controller bridging two Smart Card interfaces to host OS via CCID class driver; handles concurrent ATR negotiation and command routing. Use Value: Eliminates need for two discrete bridge ICs; single-chip solution reduces PCB area by >40% and simplifies USB descriptor management.
Banking Self-Service Kiosk	Government eID Enrollment Station
Use Scenario: ATM or cash deposit kiosk requiring fallback Smart Card authentication when biometric sensors fail. IC Role / Device Role / Timing Role: Dual-interface bridge operating in UART mode for legacy host integration, with hardware-managed card presence detection and automatic deactivation. Use Value: Ensures continuous service availability via redundant card slot; hardware-triggered deactivation prevents card lock-up during unexpected removal.	Use Scenario: Secure citizen enrollment station issuing ePassports or digital IDs using two Smart Cards (application + signature keys). IC Role / Device Role / Timing Role: SPI-hosted bridge interfacing with secure MCU host; performs synchronized T=0/T=1 exchanges across both slots under host command arbitration. Use Value: Enables deterministic dual-card key generation workflows; OTP firmware guarantees consistent cryptographic boundary enforcement.

EMV Payment Terminal

Secure Dual-Slot USB Reader

Use Scenario: Contact-based credit/debit card transactions in point-of-sale (POS) terminals requiring simultaneous support for primary and backup Smart Cards.

IC Role / Device Role / Timing Role: Dual Smart Card bridge managing independent T=1 protocol exchanges, EMV timing compliance, and USB HID-class reporting to host.

Use Value: Enables redundant card acceptance with zero software intervention between SC1/SC2 operations; hardware-guarded timing ensures EMV certification pass.

Use Scenario: Desktop or kiosk-based identity verification using two Smart Cards (e.g., national ID + PKI certificate card) over USB interface.

IC Role / Device Role / Timing Role: USB device controller bridging two Smart Card interfaces to host OS via CCID class driver; handles concurrent ATR negotiation and command routing.

Use Value: Eliminates need for two discrete bridge ICs; single-chip solution reduces PCB area by >40% and simplifies USB descriptor management.

Banking Self-Service Kiosk

Government eID Enrollment Station

Use Scenario: ATM or cash deposit kiosk requiring fallback Smart Card authentication when biometric sensors fail.

IC Role / Device Role / Timing Role: Dual-interface bridge operating in UART mode for legacy host integration, with hardware-managed card presence detection and automatic deactivation.

Use Value: Ensures continuous service availability via redundant card slot; hardware-triggered deactivation prevents card lock-up during unexpected removal.

Use Scenario: Secure citizen enrollment station issuing ePassports or digital IDs using two Smart Cards (application + signature keys).

IC Role / Device Role / Timing Role: SPI-hosted bridge interfacing with secure MCU host; performs synchronized T=0/T=1 exchanges across both slots under host command arbitration.

Use Value: Enables deterministic dual-card key generation workflows; OTP firmware guarantees consistent cryptographic boundary enforcement.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Smart Card bridge applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SEC1210-CN-02	Same silicon, commercial temperature grade (0°C to +70°C); identical pinout, OTP content, and feature set	Targeted at non-industrial environments where extended temperature operation is not required	Select SEC1210-CN-02 only if ambient operating conditions remain within 0°C–70°C and lifecycle stability under thermal cycling is not critical
ST8008-CB	Single Smart Card interface; USB-only host interface; no UART/SPI; 8 KB flash (not OTP); lower ESD rating (HBM 4 kV vs. SEC1210's 8 kV)	Suitable for cost-sensitive single-slot readers without dual-card or industrial reliability requirements	Choose ST8008-CB only when dual-card support, OTP security, or −40°C operation is unnecessary - not a drop-in replacement

Compared with SEC1210-CN-02, the SEC1210I-CN-02NC-TR adds guaranteed operation down to −40°C and tighter parametric validation across temperature; versus ST8008-CB, it provides dual-card concurrency, OTP firmware integrity, and higher ESD robustness - making it the sole option for certified EMV terminal designs requiring redundancy and field reliability.

Availability

SEC1210I-CN-02NC-TR is available at Aetrix Electronics and suitable for EMV payment terminals, secure dual-slot USB readers, banking self-service kiosks, and government eID enrollment stations requiring stable component supply across long production lifecycles.

Supply support for SEC1210I-CN-02NC-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

Microchip Technology Inc. is a leading provider of microcontrollers, analog devices, and Flash-IP solutions, serving automotive, industrial, communications, and secure computing markets with vertically integrated silicon and development tools.

The SEC1210 product line delivers certified Smart Card bridge ICs designed specifically for EMV-compliant payment infrastructure, secure identity systems, and dual-interface reader applications demanding hardware-enforced timing, OTP-based firmware trust, and industrial-grade reliability.

FAQ

What is the operating temperature range of the SEC1210I-CN-02NC-TR?

The SEC1210I-CN-02NC-TR is rated for industrial temperature operation from −40°C to +85°C. This specification is validated across all electrical parameters including Smart Card voltage regulation, USB signal integrity, and OTP read stability - ensuring reliable performance in outdoor kiosks, ATMs, and uncontrolled environment deployments where the SEC1210I-CN-02NC-TR must maintain EMV timing compliance.

Does the SEC1210I-CN-02NC-TR support both T=0 and T=1 Smart Card protocols simultaneously?

Yes, the SEC1210I-CN-02NC-TR supports full T=0 and T=1 protocol handling on both SC1 and SC2 interfaces independently. Each interface includes dedicated protocol timers (Guard, CWT, Timeout), automatic character repetition for T=0 parity recovery, and internal procedure byte filtering - enabling concurrent T=0 and T=1 sessions without software arbitration overhead in the SEC1210I-CN-02NC-TR.

Can the SEC1210I-CN-02NC-TR operate without an external crystal?

Yes, the SEC1210I-CN-02NC-TR uses an internal self-clocking oscillator and requires no external crystal or resonator. This design eliminates two passive components, reduces PCB footprint, and improves startup reliability - a confirmed feature of the SEC1210I-CN-02NC-TR validated in Microchip DS00001561E Section 15.0.

What host interface options does the SEC1210I-CN-02NC-TR provide?

The SEC1210I-CN-02NC-TR supports USB 2.0 Full-Speed (12 Mbps), UART (up to 3 Mbps), and SPI host (≤12 MHz) - with UART and SPI sharing the same four pins (SPI1_MISO/RXD, SPI1_MOSI/TXD, SPI1_CLK/CTS_OUT, SPI1_CE/RTS_IN). Host interface selection is configured via OTP or runtime register settings in the SEC1210I-CN-02NC-TR.

Is the SEC1210I-CN-02NC-TR pin-compatible with other SEC1210 variants?

Yes, the SEC1210I-CN-02NC-TR shares identical 24-pin QFN packaging, pin assignment, and electrical characteristics with all SEC1210 variants including SEC1210-CN-02 and SEC1210/PV-UR2. The "I" suffix denotes industrial temperature grade, while "NC" indicates no-connect pins per Microchip's known-good-die definition - all functional pins match exactly in the SEC1210I-CN-02NC-TR.

SEC1210I-CN-02NC-TR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 24-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: Smart Card

Interface:: SPI Serial, USB, UART

Voltage - Supply:: 5.5V

Supplier Device Package:: 24-QFN (5x5)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

SEC1210I-CN-02NC-TR FAQ

1.How can I place an order for SEC1210I-CN-02NC-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for SEC1210I-CN-02NC-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 SEC1210I-CN-02NC-TR reliable?

The price and inventory of SEC1210I-CN-02NC-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SEC1210I-CN-02NC-TR is usually 5 days.

3.What payment methods are accepted for SEC1210I-CN-02NC-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SEC1210I-CN-02NC-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SEC1210I-CN-02NC-TR?

SEC1210I-CN-02NC-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SEC1210I-CN-02NC-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 SEC1210I-CN-02NC-TR?

For technical support, including SEC1210I-CN-02NC-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SEC1210I-CN-02NC-TR requirements.

6.How does Aetrix verify that SEC1210I-CN-02NC-TR is sourced from the original manufacturer or authorized distributors?

All SEC1210I-CN-02NC-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 SEC1210I-CN-02NC-TR meets industry standards.

7.What is the process for return or replacement of SEC1210I-CN-02NC-TR?

All SEC1210I-CN-02NC-TR units undergo pre-shipment inspection (PSI). If there is an issue with SEC1210I-CN-02NC-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 SEC1210I-CN-02NC-TR part is unused and in its original packaging.

Return procedure for SEC1210I-CN-02NC-TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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