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

Microchip Technology SEC1210-CN-02NC-TR

Name: SEC1210-CN-02NC-TR
Brand: Microchip Technology
SKU: SEC1210-CN-02NC-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SEC1210-CN-02NC-TR

Manufacturer:: Microchip Technology

Category:: Specialized

Package:: 24-VFQFN Exposed Pad

Datasheet:: SEC1210-CN-02NC-TR.pdf

Description:: IC INTERFACE SPECIALIZED 24QFN

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Product details

Overview

SEC1210-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 secure, standards-compliant smart card communication for payment terminals and identity readers, with programmable card voltage (1.8V/3.0V/5.0V), full T=0/T=1 protocol support, and 261-byte full-packet FIFO per interface.

For engineers reviewing the SEC1210-CN-02NC-TR datasheet, SEC1210-CN-02NC-TR pinout, SEC1210-CN-02NC-TR application, or SEC1210-CN-02NC-TR equivalent, this page provides verified technical context, exact pin functions, real-world timing behavior, Smart Card power management logic, and validated alternative parts for dual-interface smart card bridge designs.

Technical Context

The SEC1210-CN-02NC-TR implements two independent ISO/IEC 7816 Smart Card interfaces with hardware-managed activation/deactivation sequences, EMV-compliant guard/time-out/CWT timers, and synchronous card support via GPIO-controlled signaling. Each interface features dedicated 261-byte transmit/receive FIFOs, byte-granular threshold interrupts, and automatic parity error recovery for T=0 protocol.

Its USB subsystem integrates a full-speed PHY with internal 1.5 kΩ pull-up resistor and series termination on DP/DM, plus a device controller supporting five programmable bulk/interrupt endpoints (8–64 byte buffers) and control endpoint 0 with 8/16/32/64 byte buffer. The embedded 8051 core runs at up to 9.6 MHz, executes from 16 KB OTP ROM, and manages all peripherals via SFR/XDATA register space.

Key Specifications

Parameter	Value and Actual Design Meaning
Smart Card Interfaces	Two independent ISO/IEC 7816-3 compliant ports (SC1 and SC2), each supporting Class A/B/C/AB cards (1.8V/3.0V/5.0V)
FIFO Depth	261 bytes per interface (transmit + receive), enabling full-packet buffering without software intervention during exchange
USB Interface	Full-Speed (12 Mbps) USB 2.0 device controller with integrated PHY, 1.5 kΩ D+ pull-up, and DP/DM series termination resistors
Processor Core	Enhanced 8051 running at ≤9.6 MHz, executing from 16 KB OTP ROM with 1.5 KB RAM and three 16-bit timers
Communication Peripherals	UART (up to 3 Mbaud) and SPI host interface (12 MHz max), both multiplexed on same pins as Smart Card control signals
Supply Range	3.6 V to 5.5 V input; internal regulators generate 3.3 V (VDD33), 1.8/3.0/5.0 V Smart Card supplies, and 1.2 V core voltage
ESD Protection	JESD22-A114D (±2 kV HBM) and JESD22-A115A (200 V MM) on all Smart Card pins, no external protection required

Pinout & Package

SEC1210-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 NC pins are unconnected die pads - no external connection required.

Pin/Terminal	Circuit Role	Design Meaning
SC1_VCC / SC2_VCC	Smart Card Power Output	Programmable 1.8/3.0/5.0 V supply for respective card slot; requires 1 µF external decoupling capacitor
SC1_RST_N / SC2_RST_N	Smart Card Reset Output	Active-low reset pulse triggers ATR; internally held low when interface inactive; configurable as GPIO2/GPIO18
SC1_CLK / SC2_CLK	Smart Card Clock Output	Configurable clock frequency for T=0/T=1; held low when inactive; configurable as GPIO1/GPIO17
SC1_IO / SC2_IO	Smart Card Data I/O	Bidirectional half-duplex serial data line; automatic turnaround between TX/RX phases; configurable as GPIO0/GPIO16
SC1_PRSNT_N / SC2_PRSNT_N	Smart Card Presence Detection	Active-low input with software-controllable internal pull-up; detects card insertion/removal; doubles as JTAG_TMS/JTAG_TDI
USB_DP / USB_DM	USB Differential Data	Full-Speed USB 2.0 interface with integrated 1.5 kΩ pull-up on DP and series termination on both lines
SPI1_MISO/RXD	Host Data In / UART RX	Input for SPI host mode (MISO) or UART receive (RXD); weak internal pull-down prevents floating when unused
SPI1_MOSI/TXD	Host Data Out / UART TX	Output for SPI host mode (MOSI) or UART transmit (TXD); configurable as GPIO9
SPI1_CLK/CTS_OUT	SPI Clock / UART CTS	Output clock for SPI host; alternatively UART clear-to-send output; configurable as GPIO10
SPI1_CE/RTS_IN	SPI Chip Enable / UART RTS	Active-low chip select for SPI host; alternatively UART request-to-send input; configurable as GPIO11
RESET_N	System Reset Input	Active-low asynchronous reset; ≥1 µs pulse width required; analog input with Vil = 100 mV threshold
VDD5	Main Supply Input	3.6–5.5 V power input; powers internal regulators and Smart Card supplies; must be decoupled externally
VDD33	Analog Power Output	3.3 V regulated analog supply for internal circuitry; requires 1 µF external decoupling capacitor

Key Features

Feature	Design Value
Hardware-enforced Smart Card deactivation	Automatic hardware-driven cold/warm reset and power removal sequence upon card ejection - no software dependency
EMV-compliant timing enforcement	Dedicated guard timer (BGT/EGT), time-out timer (WWT/BWT/WTX), and CWT timer ensure strict adherence to EMV 4.2/4.3 timing constraints
Self-contained Smart Card power management	Integrated regulators deliver 1.8/3.0/5.0 V from single VDD5 input; over-current sense interrupt flags short-circuit events
Zero-software-turnaround half-duplex operation	Automatic TX-to-RX transition after message completion eliminates software polling or timing-critical handshaking
Secure boot and firmware integrity	OTP ROM stores immutable firmware; TrustSpan™ technology enables secure processing, storage, and movement of sensitive data
Flexible host interface selection	Single-chip supports USB-only, UART-only, or SPI host connectivity - selected at runtime via configuration registers

Applications

Payment Terminal Reader	Government ID Issuance Station
Use Scenario: Dual-slot EMV-compliant terminal reading chip-based credit/debit cards and contactless companion devices. IC Role / Device Role / Timing Role: Primary Smart Card bridge managing two concurrent ISO/IEC 7816 sessions, enforcing EMV timing (CWT, WWT), and delivering ATR responses within 180 ms worst-case latency. Use Value: Eliminates external level shifters and discrete power controllers; reduces BOM count by integrating dual-card power regulation, protocol timers, and USB device stack into one die.	Use Scenario: High-assurance national ID card enrollment station requiring simultaneous authentication of citizen ID and official signing token. IC Role / Device Role / Timing Role: Secure dual-interface bridge enabling parallel T=1 protocol exchanges with cryptographic co-processors and biometric sensors under PC/SC compliance. Use Value: Hardware-accelerated procedure byte filtering and automatic parity recovery reduce driver complexity and eliminate firmware-level T=0 error handling.
Banking Kiosk Reader	Enterprise Access Control Hub
Use Scenario: Self-service ATM or deposit kiosk validating multiple card types (Class A/B/C) across two physical slots. IC Role / Device Role / Timing Role: Dual Smart Card interface with dynamic voltage switching (1.8V→5.0V) and automatic card class detection per slot. Use Value: Internal 4.8 V comparator disables Class A (1.8 V) support if VDD5 drops below safe margin - preventing undervoltage card damage.	Use Scenario: Physical access panel authenticating employee badge and secondary credential (e.g., PIV/CAC) before granting door access. IC Role / Device Role / Timing Role: Trusted bridge performing secure channel establishment (SCP02/SCP03) across two Smart Card interfaces while isolating key material in OTP-locked memory. Use Value: TrustSpan™ security engine ensures encrypted session keys never leave the SEC1210-CN-02NC-TR boundary - meeting FIPS 140-2 Level 2 requirements.

Payment Terminal Reader

Government ID Issuance Station

Use Scenario: Dual-slot EMV-compliant terminal reading chip-based credit/debit cards and contactless companion devices.

IC Role / Device Role / Timing Role: Primary Smart Card bridge managing two concurrent ISO/IEC 7816 sessions, enforcing EMV timing (CWT, WWT), and delivering ATR responses within 180 ms worst-case latency.

Use Value: Eliminates external level shifters and discrete power controllers; reduces BOM count by integrating dual-card power regulation, protocol timers, and USB device stack into one die.

Use Scenario: High-assurance national ID card enrollment station requiring simultaneous authentication of citizen ID and official signing token.

IC Role / Device Role / Timing Role: Secure dual-interface bridge enabling parallel T=1 protocol exchanges with cryptographic co-processors and biometric sensors under PC/SC compliance.

Use Value: Hardware-accelerated procedure byte filtering and automatic parity recovery reduce driver complexity and eliminate firmware-level T=0 error handling.

Banking Kiosk Reader

Enterprise Access Control Hub

Use Scenario: Self-service ATM or deposit kiosk validating multiple card types (Class A/B/C) across two physical slots.

IC Role / Device Role / Timing Role: Dual Smart Card interface with dynamic voltage switching (1.8V→5.0V) and automatic card class detection per slot.

Use Value: Internal 4.8 V comparator disables Class A (1.8 V) support if VDD5 drops below safe margin - preventing undervoltage card damage.

Use Scenario: Physical access panel authenticating employee badge and secondary credential (e.g., PIV/CAC) before granting door access.

IC Role / Device Role / Timing Role: Trusted bridge performing secure channel establishment (SCP02/SCP03) across two Smart Card interfaces while isolating key material in OTP-locked memory.

Use Value: TrustSpan™ security engine ensures encrypted session keys never leave the SEC1210-CN-02NC-TR boundary - meeting FIPS 140-2 Level 2 requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SEC1210-CN-02	No "NC" marking; identical electrical specs and pinout; same OTP firmware image and qualification status	Same dual Smart Card + USB functionality; used interchangeably in production where NC pin designation is not required for traceability	Select SEC1210-CN-02NC-TR when RoHS-compliant tape-and-reel packaging with NC pin notation is mandated by procurement policy
ST8020N	Single Smart Card interface only; no integrated USB PHY; requires external USB transceiver and 3.3 V regulator	Limited to single-slot readers; lacks EMV timing enforcement hardware and TrustSpan™ security features	Choose ST8020N only for cost-sensitive, single-card legacy designs where USB integration and security acceleration are not required

Compared with SEC1210-CN-02NC-TR, the SEC1210-CN-02 offers identical functionality in non-NC-marked packaging, while the ST8020N requires external components and lacks hardware EMV timers and TrustSpan™ - making SEC1210-CN-02NC-TR the only option for certified dual-interface, secure, fully integrated smart card bridges.

Availability

SEC1210-CN-02NC-TR is available at Aetrix Electronics and suitable for payment terminal readers, government ID issuance stations, and enterprise access control hubs requiring stable component supply, long-term lifecycle assurance, and full EMV certification support.

Supply support for SEC1210-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 global semiconductor company specializing in microcontrollers, analog devices, and security ICs, with design centers across North America, Europe, and Asia.

The SEC1210 product line delivers secure, standards-compliant Smart Card bridge solutions targeting EMV-certified payment systems, national ID infrastructure, and high-assurance physical access platforms.

FAQ

What is the primary function of the SEC1210-CN-02NC-TR in a smart card reader system?

The SEC1210-CN-02NC-TR serves as a dual Smart Card bridge IC that connects two ISO/IEC 7816-compliant smart cards to a host system via USB, UART, or SPI. It integrates an enhanced 8051 processor, Smart Card power regulators, EMV-compliant protocol timers, and full-packet FIFOs - enabling secure, standards-certified communication without external support components. Its role in the SEC1210-CN-02NC-TR is to eliminate discrete logic and reduce firmware overhead in payment and ID readers.

Does the SEC1210-CN-02NC-TR support both T=0 and T=1 smart card protocols?

Yes, the SEC1210-CN-02NC-TR fully supports both T=0 and T=1 protocols per ISO/IEC 7816-3 and EMV 4.2/4.3. It includes hardware-accelerated procedure byte filtering for T=0, automatic character repetition for parity error recovery, and dedicated CWT timer for T=1 time-out enforcement. These capabilities are confirmed in DS00001561E and apply specifically to the SEC1210-CN-02NC-TR variant.

Can the SEC1210-CN-02NC-TR operate without an external crystal?

Yes, the SEC1210-CN-02NC-TR uses a self-clocking internal oscillator and requires no external crystal. It derives its 48 MHz master clock internally and divides it for Smart Card clocks (programmable), USB timing, and CPU operation. This eliminates BOM cost and layout area associated with crystal oscillators - a confirmed feature of the SEC1210-CN-02NC-TR per Section 1.5 and Figure 15-1 in DS00001561E.

What is the maximum data rate supported by the SEC1210-CN-02NC-TR's smart card interfaces?

The SEC1210-CN-02NC-TR supports Smart Card data rates up to 826 Kbps via versatile ETU rate generation, as explicitly stated in DS00001561E-page 1 and page 4. This covers current and proposed ISO/IEC 7816 transmission speeds and applies directly to both SC1 and SC2 interfaces on the SEC1210-CN-02NC-TR.

How does the SEC1210-CN-02NC-TR handle smart card power supply selection?

The SEC1210-CN-02NC-TR automatically selects 1.8 V, 3.0 V, or 5.0 V output on SC1_VCC and SC2_VCC based on detected card class (A/B/C), using internal regulators fed from VDD5. An internal 4.8 V comparator disables Class A (1.8 V) support if input voltage falls below safe margin - a hardware-enforced safety feature documented for the SEC1210-CN-02NC-TR in Section 1.2 and Table 18-1.

SEC1210-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:: 3V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

SEC1210-CN-02NC-TR FAQ

1.How can I place an order for SEC1210-CN-02NC-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for SEC1210-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 SEC1210-CN-02NC-TR reliable?

The price and inventory of SEC1210-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 SEC1210-CN-02NC-TR is usually 5 days.

3.What payment methods are accepted for SEC1210-CN-02NC-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SEC1210-CN-02NC-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SEC1210-CN-02NC-TR?

SEC1210-CN-02NC-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SEC1210-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 SEC1210-CN-02NC-TR?

For technical support, including SEC1210-CN-02NC-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SEC1210-CN-02NC-TR requirements.

6.How does Aetrix verify that SEC1210-CN-02NC-TR is sourced from the original manufacturer or authorized distributors?

All SEC1210-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 SEC1210-CN-02NC-TR meets industry standards.

7.What is the process for return or replacement of SEC1210-CN-02NC-TR?

All SEC1210-CN-02NC-TR units undergo pre-shipment inspection (PSI). If there is an issue with SEC1210-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 SEC1210-CN-02NC-TR part is unused and in its original packaging.

Return procedure for SEC1210-CN-02NC-TR:

1.Submit a request within 90 days.

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

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