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NXP Semiconductors TDA8034HN/C1,151
- Part No.:
- TDA8034HN/C1,151
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TDA8034HN/C1,151.pdf
- Description:
- IC INTFACE SPECIALIZED 24HVQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TDA8034HN/C1,151 from NXP Semiconductors is a low-power analog smart card interface IC supporting 5 V, 3 V, and 1.8 V card operation per ISO 7816, EMVCo 4.3, and NDS standards. It integrates VCC LDO regulation, thermal/short-circuit protection, three protected bidirectional I/O lines (C4, C7, C8), and programmable clock generation up to 20 MHz - enabling secure, compliant bank card readers and pay-TV conditional access modules.
For engineers reviewing the TDA8034HN/C1,151 datasheet, TDA8034HN/C1,151 pinout, TDA8034HN/C1,151 application, or TDA8034HN/C1,151 equivalent, key selection criteria include VCC voltage selection logic (VCC_SEL1/VCC_SEL2), deep shutdown current (≤12 µA), ESD robustness (>8 kV HBM on card pins), and synchronous clock division (fxtal, ½fxtal, ¼fxtal, ⅛fxtal) via CLKDIV1/CLKDIV2.
Technical Context
The TDA8034HN/C1,151 implements an integrated analog front-end with dual-supply architecture: VDDP powers the internal LDO regulator feeding VCC (card supply), while VDD and VDD(INTF) independently power digital and interface logic. Its sequencer executes automatic activation/deactivation triggered by CMDVCCN and PRESN, with built-in 8 ms debouncing and emergency deactivation on short-circuit or card removal.
Card-side signal conditioning includes active pull-up (11 kΩ to VCC) on I/O, AUX1, AUX2; controlled slew rate (0.025–0.3 V/µs); and overload detection (~120 mA threshold with filtering). Clock sourcing is auto-detected between external XTAL1 input (0–26 MHz) and internal crystal oscillator (2–26 MHz), with synchronous frequency changes enabled by CLKDIV1/CLKDIV2 configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Output | Regulated 5 V / 3 V / 1.8 V ±5 %; supports 65 mA continuous load with 120 mA filtered overload protection |
| Deep Shutdown Current | ≤12 µA - enables ultra-low-power standby in battery-operated card readers |
| ESD Protection | >8 kV HBM on card pins (I/O, RST, VCC, AUX1, AUX2, CLK) - meets IEC 61000-4-2 system-level robustness |
| Card Clock Frequency | Up to 20 MHz generated from 2–26 MHz crystal or external clock; selectable via CLKDIV1/CLKDIV2 (fxtal, ½fxtal, ¼fxtal, ⅛fxtal) |
| Supply Voltages | VDDP: 4.85–5.5 V (5 V mode) or 3–5.5 V (3 V/1.8 V modes); VDD: 2.7–3.6 V; VDD(INTF): 1.6–(VDD + 0.3) V |
| Operating Temperature | −25 °C to +85 °C ambient - qualified for industrial and consumer payment terminals |
| Package | HVQFN24 (SOT616-1), 4 × 4 × 0.85 mm - thermally enhanced for compact, high-density smart card reader PCBs |
Pinout & Package
HVQFN24 package (SOT616-1), 4 mm × 4 mm × 0.85 mm body, 24-terminal no-lead thermal-enhanced quad flat design with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD(INTF) | Interface supply input | Powers all interface logic (RSTIN, CMDVCCN, CLKDIV1/2, etc.); referenced for all interface signals |
| VCC_SEL2 | VCC voltage select control | Active LOW selects 3 V VCC; HIGH selects 5 V VCC - used with VCC_SEL1 to configure card supply |
| RSTIN | Microcontroller reset input | Active HIGH signal initiating card activation sequence; non-inverted control of RST output |
| VCC_SEL1 | 1.8 V enable control | Active LOW enables 1.8 V VCC mode; HIGH disables 1.8 V selection - determines supported card voltage class |
| CMDVCCN | Activation command input | Active LOW triggers full card activation; HIGH places device in shutdown or deep shutdown mode |
| CLKDIV1 / CLKDIV2 | Clock divider select inputs | Set synchronous CLK output frequency (fxtal, ½fxtal, ¼fxtal, ⅛fxtal); timing-critical - min. 10 ns separation required |
| PRESN | Card presence sense input | Active LOW indicates card insertion; integrated 8 ms debounce prevents false detection during mechanical contact bounce |
| I/O | Card data line (C7) | Bidirectional buffered I/O referenced to VCC; 11 kΩ internal pull-up; supports ≤1 MHz data rates |
| AUX1 / AUX2 | Auxiliary card I/O (C4, C8) | Two additional protected half-duplex bidirectional lines, each with 11 kΩ VCC-referenced pull-up |
| VCC | Regulated card supply output | Delivers 5 V / 3 V / 1.8 V to card contact C1; requires 220 nF + 470 nF ceramic decoupling per spec |
| RST | Card reset output (C2) | Active LOW open-drain output driving card reset; synchronized to activation/deactivation sequences |
| CLK | Card clock output (C3) | Programmable clock up to 20 MHz; duty cycle maintained 45–55 % across all divider settings |
| OFFN | Interrupt output to MCU | NMOS open-drain interrupt (active LOW); signals card presence, fault events, or deactivation completion |
| XTAL1 / XTAL2 | Crystal oscillator interface | Supports 2–26 MHz crystal; auto-detects external clock on XTAL1 - eliminates need for clock-source select pin |
| I/OUC / AUX1UC / AUX2UC | MCU-side I/O lines | Interface-side bidirectional data lines referenced to VDD(INTF); 11 kΩ internal pull-up to VDD(INTF) |
Key Features
| Feature | Design Value |
|---|---|
| Triple protected bidirectional I/O | Three independent buffered lines (I/O, AUX1, AUX2) with thermal/short-circuit protection and 11 kΩ VCC pull-up - ensures reliable C4/C7/C8 communication under fault conditions |
| Synchronous clock division | Four precise CLK output frequencies (fxtal, ½fxtal, ¼fxtal, ⅛fxtal) set by static CLKDIV1/CLKDIV2 logic - enables compliance with diverse card ATR timing requirements |
| Auto-detect clock source | Internal logic detects external clock on XTAL1 before activation - eliminates manual clock-source configuration and reduces firmware complexity |
| Integrated 8 ms debouncing | Hardware-based PRESN signal filtering using internal oscillator - removes mechanical switch bounce without MCU intervention or external RC networks |
| EMVCo 4.3-compliant C1 version | TDA8034HN/C1,151 meets EMVCo 4.3 payment system requirements for voltage tolerance, timing, and fault response - certified for bank-grade transaction security |
| Deep shutdown mode | 12 µA quiescent current achieved by disabling all regulators and oscillators when CMDVCCN = HIGH and both VCC_SEL1/VCC_SEL2 = LOW - extends battery life in portable readers |
Applications
| Bank Card Readers | Pay-TV Conditional Access |
|---|---|
Use Scenario: Embedded in countertop or portable POS terminals reading EMV chip cards during financial transactions. IC Role / Device Role / Timing Role: Provides regulated 5 V/3 V/1.8 V supply, ISO 7816-compliant clock/reset/data signaling, and fault-safe deactivation for secure card interface. Use Value: Enables single-chip compliance with EMVCo 4.3 and PCI PTS requirements while reducing BOM count and layout area vs. discrete solutions. | Use Scenario: Integrated into set-top box CAM modules to authenticate subscriber smart cards for encrypted content access. IC Role / Device Role / Timing Role: Manages card activation, ATR negotiation, and secure data exchange over C1–C8 contacts with precise clock timing and voltage control. Use Value: Supports multi-voltage card operation (5 V/3 V/1.8 V) and dynamic clock scaling to meet NDS and DVB-CI timing constraints. |
| Electronic ID Documents | Secure Access Control Systems |
Use Scenario: Used in e-passport and national ID card readers at border control or government service kiosks. IC Role / Device Role / Timing Role: Delivers ESD-hardened, thermally protected interface for high-reliability contact-based authentication with ICAO-compliant timing. Use Value: >8 kV HBM ESD rating and automatic overheating shutdown ensure uninterrupted operation in uncontrolled public environments. | Use Scenario: Deployed in physical access readers for corporate campuses or secure facilities verifying employee smart badges. IC Role / Device Role / Timing Role: Controls card power sequencing, presence detection (PRESN), and secure data transfer while maintaining low standby power. Use Value: Deep shutdown current ≤12 µA allows battery-backed operation for months; OFFN interrupt enables fast wake-on-card-insertion. |
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 processor; not a pure analog interface - lacks VCC regulation, CLK generation, and direct ISO 7816 contact drive | Designed for host-system root-of-trust, not card-reader front-end; requires external interface IC for smart card connection | Select TDA8034HN/C1,151 when implementing dedicated, cost-optimized smart card reader hardware without embedded security processing |
| TDA8029HN/C1,118 | Legacy NXP smart card interface; supports only 5 V cards; no 3 V/1.8 V support; no deep shutdown mode (35 µA vs. 12 µA); no CLKDIV1/CLKDIV2 programmability | Limited to legacy 5 V payment systems; incompatible with modern multi-voltage EMV cards and low-power portable designs | Choose TDA8034HN/C1,151 for new designs requiring EMVCo 4.3 compliance, multi-voltage support, and <15 µA standby current |
Compared with SLB9670VQ2.0 and TDA8029HN/C1,118, the TDA8034HN/C1,151 delivers full analog smart card interface functionality - including programmable VCC regulation, synchronous clock generation, and deep shutdown - in a single HVQFN24 package, making it optimal for cost-sensitive, low-power, standards-compliant card reader implementations.
Availability
TDA8034HN/C1,151 is available at Aetrix Electronics and suitable for bank card readers, pay-TV conditional access modules, electronic ID document verification, and secure access control systems requiring stable component supply and long-term lifecycle support.
Supply support for TDA8034HN/C1,151 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 semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in smart card and secure element technologies.
The TDA8034HN product line delivers highly integrated, standards-compliant analog interfaces for ISO 7816 smart cards - designed specifically to reduce bill-of-materials, simplify certification, and accelerate time-to-market for payment, identification, and conditional access systems.
FAQ
What voltage levels does the TDA8034HN/C1,151 support for smart card operation?
The TDA8034HN/C1,151 supports 5 V, 3 V, and 1.8 V smart card operation through dedicated VCC_SEL1 and VCC_SEL2 control pins. When VCC_SEL2 is HIGH and VCC_SEL1 is HIGH, VCC is regulated to 5 V; when VCC_SEL2 is LOW and VCC_SEL1 is HIGH, VCC is 3 V; and when VCC_SEL1 is LOW, VCC is set to 1.8 V. These selections are implemented via internal LDO regulation with ±5 % accuracy and 65 mA continuous output capability - ensuring full compliance with ISO 7816-3 voltage classes.
How does the TDA8034HN/C1,151 handle clock generation for smart cards?
The TDA8034HN/C1,151 supports dual clock sources: an internal crystal oscillator (2–26 MHz) connected across XTAL1/XTAL2, or an external clock applied to XTAL1 (0–26 MHz). It automatically detects the presence of an external clock before activation, eliminating manual configuration. Clock frequency on the CLK pin is programmable via CLKDIV1 and CLKDIV2 to fxtal, ½fxtal, ¼fxtal, or ⅛fxtal - with synchronous transitions maintaining 45–55 % duty cycle and minimum pulse width integrity - meeting strict ISO 7816 ATR timing requirements.
What protection features does the TDA8034HN/C1,151 provide for smart card contacts?
The TDA8034HN/C1,151 provides comprehensive protection for all card contacts: thermal and short-circuit protection on VCC, I/O, AUX1, AUX2, RST, and CLK; >8 kV HBM ESD protection on card pins; filtered overload detection (~120 mA threshold); and automatic emergency deactivation on card removal, VDD/VDDP/VDD(INTF) undervoltage, or overheating. These features are implemented in hardware with no firmware dependency - ensuring fail-safe behavior during live transactions and extending card and interface reliability in harsh environments.
What is the purpose of the OFFN pin on the TDA8034HN/C1,151?
The OFFN pin on the TDA8034HN/C1,151 is an NMOS open-drain interrupt output (active LOW) that signals critical system events to the microcontroller. It asserts LOW during card insertion (after 8 ms debounce), deactivation completion, or fault conditions such as short-circuit, card removal, or supply undervoltage. In deep shutdown mode, OFFN mirrors PRESN status. This enables efficient polling- or interrupt-driven firmware control without requiring constant register reads - simplifying real-time card presence and fault monitoring in TDA8034HN/C1,151-based designs.
How does the TDA8034HN/C1,151 achieve ultra-low power consumption in standby?
The TDA8034HN/C1,151 achieves ultra-low standby power via its deep shutdown mode, activated when CMDVCCN is HIGH and both VCC_SEL1 and VCC_SEL2 are LOW. In this state, all regulators, oscillators, and I/O drivers are disabled, reducing supply current to ≤12 µA. This mode retains only PRESN monitoring and OFFN status reporting - enabling months of battery life in portable card readers. Standard shutdown mode consumes ≤35 µA, while active-mode current remains ≤2 mA - delivering scalable power optimization across operational states.
TDA8034HN/C1,151 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- Analog
- Voltage - Supply:
- 1.8V, 3V, 5V
- Supplier Device Package:
- 24-HVQFN (4x4)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TDA8034HN/C1,151 FAQ
1.How can I place an order for TDA8034HN/C1,151 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA8034HN/C1,151 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/C1,151 reliable?
The price and inventory of TDA8034HN/C1,151 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA8034HN/C1,151 is usually 5 days.
3.What payment methods are accepted for TDA8034HN/C1,151?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA8034HN/C1,151 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA8034HN/C1,151?
TDA8034HN/C1,151 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA8034HN/C1,151 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/C1,151?
For technical support, including TDA8034HN/C1,151 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA8034HN/C1,151 requirements.
6.How does Aetrix verify that TDA8034HN/C1,151 is sourced from the original manufacturer or authorized distributors?
All TDA8034HN/C1,151 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/C1,151 meets industry standards.
7.What is the process for return or replacement of TDA8034HN/C1,151?
All TDA8034HN/C1,151 units undergo pre-shipment inspection (PSI). If there is an issue with TDA8034HN/C1,151, 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/C1,151 part is unused and in its original packaging.
Return procedure for TDA8034HN/C1,151:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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