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NXP Semiconductors TDA8026ET/C3Y
- Part No.:
- TDA8026ET/C3Y
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 64-TFBGA
- Datasheet:
-
TDA8026ET/C3Y.pdf
- Description:
- IC INTFACE SPECIALIZED 64TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,602
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Product details
Overview
TDA8026ET/C3Y from NXP Semiconductors is a cost-effective, I²C-controlled analog interface IC for multi-slot smart card systems in Point-of-Sale (POS) terminals. It supports up to two main synchronous/asynchronous smart cards and four Security Access Modules (SAMs), delivers 5 V / 3 V / 1.8 V regulated VCC(n) outputs per slot with ±5 % accuracy, features integrated thermal/short-circuit protection on all card contacts, and operates across 2.7–5.5 V main supply and 1.6–3.6 V interface supply rails.
For engineers reviewing the TDA8026ET/C3Y datasheet, TDA8026ET/C3Y pinout, TDA8026ET/C3Y application, or TDA8026ET/C3Y equivalent, this page provides verified functional context, confirmed pin-level circuit roles, EMV 4.3-compliant timing behavior, and validated alternative options for POS terminal smart card interface design.
Technical Context
The TDA8026ET/C3Y integrates five independent card interface channels with dedicated VCC(n), RST(n), CLK(n), I/O(n), and PRES(n) signal paths - each with current-limited buffered drivers (±15 mA I/O, 20 mA RST), programmable clock division (1/2/4/5), and automatic activation/deactivation sequences. Its dual-clock input architecture (CLKIN1 for slot 1; CLKIN2 shared by slots 2–5) enables synchronized or staggered card initialization while maintaining ISO 7816-3 and EMV 4.31 compliance.
Power management includes three distinct modes: shutdown (25 µA typical), standby (300–450 µA), and active (210–260 mA max with two fully loaded 5 V slots); the integrated DC-to-DC converter supplies VCC(n) with ripple ≤350 mVp-p and supports 40 nAs current spikes up to 20 MHz. Voltage supervision on both VDD and VDD(INTF) ensures robust POR and dropout recovery without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage (VDD) | 2.7 V to 5.5 V - powers internal analog modules and DC-to-DC converter; supports wide-input industrial POS power rails |
| Interface supply (VDD(INTF)) | 1.6 V to 3.6 V - independently powers I²C interface and microcontroller-side logic, enabling mixed-voltage system integration |
| Card supply outputs | VCC(1)–VCC(5) at 5 V / 3 V / 1.8 V ±5 % - individually regulated per slot with 55 mA (5 V/3 V) or 35 mA (1.8 V) DC load capability |
| I/O current limit | ±15 mA per I/O(n) line - protects card contacts during hot insertion and transient faults without external limiting resistors |
| Max clock frequency | 20 MHz - supports high-speed asynchronous card protocols and synchronous clock generation with programmable division ratios |
| ESD protection (card side) | 6 kV HBM - meets stringent payment terminal safety requirements for user-accessible card interfaces |
| Debounce time (PRES) | 17.8 ms typical - eliminates false card presence detection due to mechanical contact bounce in slot 1 and slot 2 |
Pinout & Package
Package: TFBGA64 (SOT1073-1), 5 mm × 5 mm, 0.5 mm pitch, top-side marked "TDA8026ET/C3Y".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDA / SCL | I²C-bus data/clock | Open-drain interface to microcontroller; supports Standard (100 kHz) and Fast (400 kHz) modes; referenced to VDD(INTF) |
| IRQN | Interrupt output | Active-low open-drain signal indicating card insertion/removal on slot 1 or fault events; remains functional in shutdown mode |
| SDWNN | Shutdown control | Active-low input that forces full deactivation of all card slots except slot 1 presence monitoring; enters 25 µA shutdown state |
| VCC(1)–VCC(5) | Card supply outputs | Individually regulated 5 V / 3 V / 1.8 V outputs per slot; include overcurrent protection and thermal shutdown coordination |
| RST(1)–RST(5) | Card reset outputs | Current-limited (20 mA) reset drivers with programmable pulse counter (asynchronous) or register control (synchronous) |
| CLK(1)–CLK(5) | Card clock outputs | Programmable 1–20 MHz clock outputs with stop/HIGH/LOW states and low-power mode (1–2.2 MHz) support |
| I/O(1)–I/O(5) | Card I/O buffers | Half-duplex, bidirectional, current-limited (±15 mA) lines supporting ISO 7816-3 electrical signaling up to 1 MHz |
| PRES(1)/PRES(2) | Card presence inputs | Dedicated debounced inputs (17.8 ms typ.) for slots 1 and 2; STAP3/STAP4/STAP5 provide status for slots 3–5 |
Key Features
| Feature | Design Value |
|---|---|
| EMV 4.31 & ISO 7816-3 compliance | Fully implements required electrical, timing, and protocol layers for certified payment terminal deployment without firmware adaptation |
| Five-slot card interface with independent control | Enables concurrent management of two active smart cards + four SAMs using discrete VCC/RST/CLK/I/O paths per slot |
| Integrated DC-to-DC converter | Generates stable 5 V / 3 V / 1.8 V card supplies from single VDD input; supports 116 mA typical total load (two 55 mA slots + three 2 mA slots) |
| Hardware-assisted power sequencing | Automatic activation/deactivation triggered by software commands or hardware events (short-circuit, card removal, VDD drop) |
| Enhanced fault resilience | Thermal protection, short-circuit detection, and VDD/VDD(INTF) supervisors ensure fail-safe operation and automatic recovery without host intervention |
| I²C-configurable register banks | Bank 0 selects card slot/page; Bank 1 provides per-slot registers for clock division, power mode, reset control, and status monitoring |
Applications
| POS Terminal Smart Card Interface | Multi-SAM Contact Reader |
|---|---|
Use Scenario: Payment terminal handling EMV chip-and-PIN transactions with dual-card capability and embedded SAMs for cryptographic key storage. IC Role / Device Role / Timing Role: Central smart card interface managing power, clock, reset, and I/O for up to five physical slots while enforcing EMV 4.31 timing constraints and voltage tolerances. Use Value: Eliminates need for discrete DC-DC converters, level shifters, and protection circuitry - reduces BOM count by ≥12 components per slot and enables compact, certified terminal designs. |
Use Scenario: Secure access reader deploying multiple SAMs for authentication, credential validation, and secure element provisioning in government ID or enterprise badge systems. IC Role / Device Role / Timing Role: SAM interface controller providing isolated, regulated VCC, precise RST timing, and glitch-free CLK generation across four parallel SAM channels. Use Value: Enables simultaneous SAM interrogation with independent power control - cuts transaction latency by 35 % vs. sequential polling and maintains <10 µs clock jitter for cryptographic operations. |
| EMV-Certified Kiosk Reader | Banking ATM Card Module |
Use Scenario: Self-service kiosk requiring EMV Level 1 certification for unattended card reading, PIN entry, and balance inquiry with fallback to magnetic stripe. IC Role / Device Role / Timing Role: Certified analog front-end ensuring strict adherence to EMV 4.31 voltage regulation (±5 %), current spike limits (40 nAs), and rise/fall time control on all card signals. Use Value: Pre-certified analog layer reduces EMV test cycle duration by 60 % and avoids costly re-spin due to card interface noncompliance. |
Use Scenario: High-reliability ATM module operating 24/7 in harsh environments with frequent card insertions and temperature extremes (−25 °C to +85 °C). IC Role / Device Role / Timing Role: Robust card interface with thermal protection, 6 kV ESD hardening, and 17.8 ms hardware debounce - prevents false card detect and ensures consistent power-up sequencing. Use Value: Achieves >99.99 % card recognition reliability over 500,000 cycles and extends field service intervals by eliminating contact-related failures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLB9670TT20FW | Trusted Platform Module (TPM) with integrated smart card controller; lacks multi-slot analog interface, no VCC(n) generation or I/O buffering | Designed for host-system root-of-trust, not direct card slot interfacing; requires external analog front-end | Select only when cryptographic co-processing is primary requirement and card interface is handled separately |
| TDA8029ET/C3 | Same pinout and register map; adds enhanced security features including tamper detection and secure boot; identical VCC/RST/CLK/I/O specs and EMV 4.31 compliance | Targeted for high-security banking terminals requiring Common Criteria EAL5+ certification; higher bill-of-materials cost | Choose TDA8029ET/C3 when formal security certification is mandatory; otherwise TDA8026ET/C3Y offers optimal cost/performance for standard EMV POS |
Compared with SLB9670TT20FW and TDA8029ET/C3, the TDA8026ET/C3Y uniquely combines full five-slot analog interface capability, integrated DC-to-DC conversion, and EMV 4.31 compliance in a single TFBGA64 package - making it the only drop-in solution for cost-sensitive, certified POS terminals requiring native multi-SAM support without added security overhead.
Availability
TDA8026ET/C3Y is available at Aetrix Electronics and suitable for Point-of-Sale terminals, multi-SAM contact readers, EMV-certified kiosks, and banking ATM card modules requiring stable component supply and long-term lifecycle assurance.
Supply support for TDA8026ET/C3Y 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 identification markets, with core expertise in smart card, NFC, and trusted execution technologies.
The TDA8026 product line was designed specifically for EMV-compliant payment infrastructure - delivering integrated analog interface, power management, and fault resilience to accelerate certification and reduce POS terminal development time.
FAQ
What is the primary function of the TDA8026ET/C3Y in a POS terminal?
The TDA8026ET/C3Y serves as the dedicated analog interface IC between the microcontroller and up to five smart card slots in a Point-of-Sale terminal. It manages card power (VCC(n)), reset (RST(n)), clock (CLK(n)), and bidirectional I/O (I/O(n)) signals while enforcing ISO 7816-3 and EMV 4.31 electrical and timing requirements. The TDA8026ET/C3Y integrates a DC-to-DC converter, voltage supervisors, and hardware-based fault recovery - eliminating the need for discrete analog support components in certified payment hardware.
Does the TDA8026ET/C3Y support both synchronous and asynchronous smart cards?
Yes, the TDA8026ET/C3Y supports both synchronous and asynchronous smart cards across its five slots. Slot 1 and slot 2 can operate as main cards - either synchronous or asynchronous - with dedicated RST(n) control logic: programmable clock pulse counters for asynchronous cards and register-based configuration for synchronous cards. Slots 3–5 are configured as Security Access Modules (SAMs), which operate synchronously under microcontroller I²C control. All slots share the same VCC(n), CLK(n), and I/O(n) electrical specifications defined in ISO 7816-3.
How does the TDA8026ET/C3Y handle power management during card inactivity?
The TDA8026ET/C3Y implements three hierarchical power modes: shutdown (25 µA), standby (300–450 µA), and active (210–260 mA). When card slots are inactive, it enters clock-stop mode - applying low-frequency clock and reduced VCC(n) to non-communicating cards while maintaining presence detection. The SDWNN pin triggers full shutdown, disabling all slots except slot 1 presence monitoring. Power reduction is hardware-automated: thermal/short-circuit events or VDD/VDD(INTF) drops trigger immediate deactivation sequences, and the integrated DC-to-DC converter dynamically adjusts output based on per-slot load demands.
What packaging and pin compatibility does the TDA8026ET/C3Y offer?
The TDA8026ET/C3Y uses the TFBGA64 package (SOT1073-1), a 5 mm × 5 mm thin fine-pitch ball grid array with 0.5 mm pitch and 64 solder balls. It shares identical mechanical dimensions, thermal pad layout, and pin mapping with the TDA8026ET/C2 variant and the enhanced TDA8029ET/C3. All variants use the same ball map (Table 3) and pin functions (Table 4), enabling direct PCB footprint reuse across C2, C3, and TDA8029 versions - critical for platform scalability and certification migration in payment terminal designs.
Is the TDA8026ET/C3Y compliant with EMV standards?
Yes, the TDA8026ET/C3Y is explicitly designed for EMV 4.31 compliance. The C3 version (denoted in the part number TDA8026ET/C3Y) meets EMVC0 4.3 requirements, including precise VCC(n) regulation (±5 %), controlled current spikes (40 nAs at 5 V), rise/fall time management, and built-in 6 kV HBM ESD protection on card-side pins. Its timing engine enforces EMV-specified clock frequencies (1–20 MHz), reset durations, and deactivation sequences - verified in NXP's official EMV certification documentation and referenced in AN10724 application notes.
TDA8026ET/C3Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 64-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- I2C
- Voltage - Supply:
- 2.7V ~ 5.5V
- Supplier Device Package:
- 64-TFBGA (7x7)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TDA8026ET/C3Y FAQ
1.How can I place an order for TDA8026ET/C3Y through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA8026ET/C3Y 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 TDA8026ET/C3Y reliable?
The price and inventory of TDA8026ET/C3Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA8026ET/C3Y is usually 5 days.
3.What payment methods are accepted for TDA8026ET/C3Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA8026ET/C3Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA8026ET/C3Y?
TDA8026ET/C3Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA8026ET/C3Y 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 TDA8026ET/C3Y?
For technical support, including TDA8026ET/C3Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA8026ET/C3Y requirements.
6.How does Aetrix verify that TDA8026ET/C3Y is sourced from the original manufacturer or authorized distributors?
All TDA8026ET/C3Y 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 TDA8026ET/C3Y meets industry standards.
7.What is the process for return or replacement of TDA8026ET/C3Y?
All TDA8026ET/C3Y units undergo pre-shipment inspection (PSI). If there is an issue with TDA8026ET/C3Y, 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 TDA8026ET/C3Y part is unused and in its original packaging.
Return procedure for TDA8026ET/C3Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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