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NXP Semiconductors TDA8034HN/C2J
- Part No.:
- TDA8034HN/C2J
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TDA8034HN/C2J.pdf
- Description:
- IC INTFACE SPECIALIZED 24HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,523
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Product details
Overview
TDA8034HN/C2J from NXP Semiconductors is a low-power smart card interface IC supporting ISO 7816-compliant 5 V, 3 V, and 1.8 V asynchronous/synchronous cards. It integrates VCC regulation, thermal/short-circuit protection, three protected bidirectional I/O lines (C4, C7, C8), and programmable clock division up to 20 MHz - enabling secure, standards-compliant card readers for payment terminals and identification systems.
For engineers reviewing the TDA8034HN/C2J datasheet, TDA8034HN/C2J pinout, TDA8034HN/C2J application, or TDA8034HN/C2J equivalent, key selection criteria include its HVQFN24 package, EMVCo 4.3 compliance (C2 version), deep shutdown current ≤12 µA, 3-level VCC selection logic, and integrated ESD protection >8 kV on card-side pins.
Technical Context
The TDA8034HN/C2J implements a dual-supply architecture with independent VDDP (LDO input), VDD (digital core), and VDD(INTF) (interface logic) rails, each monitored by a dedicated voltage supervisor with configurable POR threshold via PORADJ. Its clock system supports automatic external crystal (2–26 MHz) or external clock (0–26 MHz) detection and synchronous frequency division (fxtal, ½fxtal, ¼fxtal, ⅛fxtal) using CLKDIV1/CLKDIV2 control pins.
Card interface operation uses active pull-up (11 kΩ to VCC) on I/O, AUX1, AUX2 and level-shifting transceivers referenced to VCC, while microcontroller-side signals (I/OUC, AUX1UC, AUX2UC) reference VDD(INTF). Fault detection triggers emergency deactivation on short-circuit, card removal, or supply drop-out, with built-in 8 ms hardware debouncing on PRESN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Range | Supports 5 V ±5 %, 3 V ±5 %, or 1.8 V ±5 % card operation with internal LDO regulation and decoupling via 220 nF + 470 nF ceramic capacitors |
| Deep Shutdown Current | ≤12 µA - enables ultra-low-power standby in battery-operated or energy-sensitive smart card readers |
| Card I/O Protection | Thermal and short-circuit protection on all card contacts (C1–C8); ESD >8 kV HBM on I/O, RST, VCC, AUX1, AUX2, CLK |
| Output Drive Capability | Delivers >1 mA at 0.9VCC into 80 pF load; supports 1 MHz data rate on bidirectional I/O lines with controlled slew rates (0.025–0.3 V/µs) |
| EMVCo Compliance | C2 version certified to EMVCo 4.3 - required for global electronic payment terminal qualification and certification |
| Package | HVQFN24 (SOT616-1), 4 × 4 × 0.85 mm, thermally enhanced, leadless - suitable for compact, high-density reader PCB layouts |
Pinout & Package
HVQFN24 package (SOT616-1): 4 mm × 4 mm body, 0.85 mm height, 24-terminal no-lead quad flat design with exposed thermal pad for efficient heat dissipation in continuous card activation scenarios.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD(INTF) | Interface power supply | Supplies 1.6–3.6 V to microcontroller-side I/O buffers (I/OUC, AUX1UC, AUX2UC); reference for all interface logic |
| VCC_SEL1 / VCC_SEL2 | VCC voltage selection control | Dual-pin logic: VCC_SEL1 LOW enables 1.8 V; VCC_SEL2 HIGH enables 5 V, LOW enables 3 V - sets card supply rail without external switches |
| RSTIN | Microcontroller reset input | Active-HIGH signal triggering card reset sequence; non-inverted control of RST output to card contact C2 |
| CMDVCCN | Activation command input | Active-LOW signal initiating full card power-up sequence including VCC ramp, clock enable, and RST assertion |
| PRESN | Card presence detection | Active-LOW input with built-in 8 ms hardware debounce - eliminates mechanical switch bounce in card socket interfaces |
| I/O / AUX1 / AUX2 | Card-side bidirectional data | Three protected half-duplex I/O lines (C7, C4, C8) with 11 kΩ internal pull-up to VCC and 15 mA current limiting |
| CLKDIV1 / CLKDIV2 | Programmable clock divider control | Set card clock (CLK) to fxtal, ½fxtal, ¼fxtal, or ⅛fxtal synchronously - enables dynamic clock scaling per card protocol requirements |
| OFFN | Interrupt output to MCU | Open-drain NMOS output (active-LOW) signaling card insertion/removal, fault conditions, or deactivation completion |
Key Features
| Feature | Design Value |
|---|---|
| Triple-voltage smart card support | Single IC handles 5 V, 3 V, and 1.8 V cards via programmable VCC_SEL1/VCC_SEL2 logic - eliminates need for external voltage translators or multiple interface ICs |
| EMVCo 4.3-certified C2 version | TDA8034HN/C2J meets EMVCo 4.3 payment security requirements - accelerates certification for bank card readers and POS terminals |
| Integrated card fault recovery | Automatic emergency deactivation on short-circuit, overheating, or card removal - prevents data corruption and ensures safe card ejection |
| Low-ESR capacitor-optimized VCC regulation | Stable 5 V/3 V/1.8 V output using only two low-ESR MLCCs (220 nF + 470 nF) - reduces BOM count and improves ripple rejection (<350 mV p-p) |
| Crystal/external clock auto-detection | Intelligently selects between XTAL1/XTAL2 crystal oscillator (2–26 MHz) or external clock input (0–26 MHz) on each CMDVCCN activation - simplifies board design and layout |
Applications
| Pay TV Conditional Access | EMV Payment Terminals |
|---|---|
Use Scenario: Secure decryption of encrypted broadcast streams using conditional access smart cards inserted into set-top box readers. IC Role / Device Role: Smart card interface managing VCC supply, clock generation, reset sequencing, and bidirectional data exchange per ISO 7816-3. Use Value: Enables tamper-resistant content delivery with <12 µA deep shutdown current extending standby battery life in portable decoders. | Use Scenario: Chip-and-PIN transaction processing in countertop or mobile point-of-sale terminals handling EMV-compliant bank cards. IC Role / Device Role: Certified smart card interface providing EMVCo 4.3-compliant power control, clock management, and fault-safe deactivation during card removal. Use Value: Reduces time-to-certification and eliminates external protection components - lowering bill-of-materials cost by ≥30% versus discrete solutions. |
| Government ID Readers | Secure Access Control Systems |
Use Scenario: Reading e-passports and national ID cards in border control kiosks or document verification stations. IC Role / Device Role: High-reliability interface supporting 1.8 V/3 V/5 V cards, thermal protection, and ESD-hardened I/O for unattended public infrastructure. Use Value: Ensures uninterrupted operation under variable ambient temperatures (−25 °C to +85 °C) and repeated card insertions with built-in 8 ms PRESN debouncing. | Use Scenario: Physical access credential validation in enterprise door controllers using contact-based smart cards. IC Role / Device Role: Low-power interface managing card activation, secure data transfer, and fast deactivation upon card withdrawal to prevent replay attacks. Use Value: Achieves <90 µs deactivation time (tdeact) - critical for real-time access revocation and preventing unauthorized session continuation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLB9670VQ2.0 | Trusted Platform Module (TPM) with integrated secure crypto engine; not a pure interface IC - lacks VCC regulation, clock generation, and card-side I/O protection | Designed for host-system root-of-trust, not direct smart card reader interfacing; requires external interface circuitry | Select TDA8034HN/C2J when building a standalone ISO 7816 reader; choose SLB9670VQ2.0 only for PC/platform authentication where TPM functionality is primary |
| ST8024 | Legacy STMicroelectronics smart card interface; supports only 5 V cards, no 1.8 V mode, higher shutdown current (50 µA vs. 12 µA), no EMVCo 4.3 certification | Limited to older payment systems; incompatible with modern low-voltage eID and NFC coexistence designs | TDA8034HN/C2J is preferred for new designs requiring multi-voltage support, lower power, and EMVCo 4.3 compliance |
Compared with SLB9670VQ2.0 and ST8024, the TDA8034HN/C2J delivers purpose-built smart card interface functionality - integrating regulated VCC, programmable clocking, triple-voltage support, and EMVCo 4.3 certification in a single HVQFN24 package - reducing system complexity and accelerating time-to-market for certified payment and ID readers.
Availability
TDA8034HN/C2J is available at Aetrix Electronics and suitable for EMV payment terminals, government ID readers, pay TV conditional access modules, and secure physical access systems requiring stable component supply, long-term lifecycle support, and certified smart card interoperability.
Supply support for TDA8034HN/C2J 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
NXP Semiconductors is a global leader in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in smart card, NFC, and secure element technologies.
The TDA8034HN product line targets cost-sensitive, high-reliability smart card readers requiring EMVCo certification, low-power operation, and seamless integration with microcontrollers - addressing electronic payment, identification, and conditional access markets.
FAQ
What is the primary function of the TDA8034HN/C2J in a smart card reader system?
The TDA8034HN/C2J serves as a complete analog interface between a microcontroller and ISO 7816-compliant smart cards. It provides regulated VCC supply (5 V/3 V/1.8 V), card clock generation, reset control, bidirectional data buffering (C4/C7/C8), thermal/short-circuit protection, and EMVCo 4.3–certified fault handling - eliminating the need for discrete protection and level-shifting components in the TDA8034HN/C2J-based reader design.
How does the TDA8034HN/C2J support EMV payment compliance?
The TDA8034HN/C2J is the C2 version specifically certified to EMVCo 4.3 standards, covering power delivery stability, clock accuracy, fault detection timing, and secure deactivation sequences required for bank card transactions. Its integrated VCC regulation with overload filtering (120 mA threshold), 8 ms PRESN debouncing, and automatic emergency deactivation on card removal directly satisfy EMVCo test cases - making TDA8034HN/C2J a qualified component for certified payment terminal designs.
What are the key differences between the TDA8034HN/C1 and TDA8034HN/C2J versions?
The TDA8034HN/C1 and TDA8034HN/C2J share identical electrical specifications and pinout but differ in certification scope: only the C2 version is validated and documented for EMVCo 4.3 compliance. The TDA8034HN/C2J also features tighter VOH/VOL tolerances for 1.8 V operation (e.g., VOH ≥1.28 V at IOH < −20 µA) and enhanced VIH thresholds on card I/O pins - ensuring robust interoperability with modern low-voltage eID and banking cards that the C1 version does not guarantee.
Can the TDA8034HN/C2J operate with an external clock source instead of a crystal?
Yes, the TDA8034HN/C2J supports both crystal (2–26 MHz between XTAL1/XTAL2) and external clock (0–26 MHz applied to XTAL1) inputs. It performs automatic clock source detection on each CMDVCCN activation edge - disabling the internal oscillator if an external clock is present. This flexibility allows designers to use low-jitter external clocks for timing-critical applications or crystals for self-contained, low-BOM-cost implementations - both fully supported by the TDA8034HN/C2J without configuration changes.
What thermal and protection features does the TDA8034HN/C2J provide for smart card reliability?
The TDA8034HN/C2J integrates thermal shutdown, short-circuit protection on all card contacts (C1–C8), and >8 kV HBM ESD protection on card-side pins. Its junction-to-ambient thermal resistance is 53 K/W in the HVQFN24 package, enabling reliable operation up to +85 °C ambient. Overload detection on VCC is filtered to tolerate 200 mA current pulses for milliseconds without deactivation - ensuring robustness against transient card faults while maintaining TDA8034HN/C2J system uptime in high-volume reader deployments.
TDA8034HN/C2J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- -
- Interface:
- Analog
- Voltage - Supply:
- 1.8V, 3V, 5V
- Supplier Device Package:
- 24-HVQFN (4x4)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TDA8034HN/C2J FAQ
1.How can I place an order for TDA8034HN/C2J through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA8034HN/C2J 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 TDA8034HN/C2J reliable?
The price and inventory of TDA8034HN/C2J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA8034HN/C2J is usually 5 days.
3.What payment methods are accepted for TDA8034HN/C2J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA8034HN/C2J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA8034HN/C2J?
TDA8034HN/C2J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA8034HN/C2J 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 TDA8034HN/C2J?
For technical support, including TDA8034HN/C2J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA8034HN/C2J requirements.
6.How does Aetrix verify that TDA8034HN/C2J is sourced from the original manufacturer or authorized distributors?
All TDA8034HN/C2J 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 TDA8034HN/C2J meets industry standards.
7.What is the process for return or replacement of TDA8034HN/C2J?
All TDA8034HN/C2J units undergo pre-shipment inspection (PSI). If there is an issue with TDA8034HN/C2J, 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 TDA8034HN/C2J part is unused and in its original packaging.
Return procedure for TDA8034HN/C2J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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