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NXP Semiconductors TDA8026ET/C3E
- Part No.:
- TDA8026ET/C3E
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 64-TFBGA
- Datasheet:
-
TDA8026ET/C3E.pdf
- Description:
- IC INTERFACE SPECIALIZED 64TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,264
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Product details
Overview
TDA8026ET/C3E from NXP Semiconductors is a smart card interface IC designed for multi-slot Point-of-Sale (POS) terminals. It supports up to two synchronous or asynchronous main cards and four Security Access Modules (SAMs), delivers programmable 1.8 V/3 V/5 V card supply with ±5 % regulation, integrates I²C-bus control (100 kHz / 400 kHz), and features embedded thermal/short-circuit protection on all card contacts.
For engineers reviewing the TDA8026ET/C3E datasheet, TDA8026ET/C3E pinout, TDA8026ET/C3E application, or TDA8026ET/C3E equivalent, key selection considerations include ISO 7816-3/EMV 4.31 compliance, five-card slot power management with DC-to-DC converter, 6 kV ESD protection on card side, and TFBGA64 package compatibility with payment terminal security requirements.
Technical Context
The TDA8026ET/C3E implements an I²C-bus slave interface with dual address support via A0 pin, enabling parallel operation of two devices. Its internal architecture includes five independent card slot controllers with dedicated RST(n), CLK(n), I/O(n), VCC(n), and PRES(n) signal paths, each with current-limited buffered I/O (±15 mA) and 1 MHz max frequency.
Power management combines three operating modes-shutdown (25 µA), standby (300–450 µA), and active (210–260 mA)-with clock-stop sub-mode for inactive slots. The integrated DC-to-DC converter generates regulated VCC(n) outputs (5 V/3 V/1.8 V ±5 %) while supporting up to 116 mA total load across five slots, with automatic fault deactivation and thermal protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage (VDD) | 2.7 V to 5.5 V - powers analog core and DC-to-DC converter; enables wide input range for industrial POS designs |
| Interface supply (VDD(INTF)) | 1.6 V to 3.6 V - independently powers I²C and microcontroller interface, allowing level-shifting between logic domains |
| Card supply regulation | 5 V / 3 V / 1.8 V ±5 % - selectable per slot; meets ISO 7816-3 voltage classes for EMV-compliant card operation |
| I²C bus speed | 100 kHz (Standard) / 400 kHz (Fast) - supports high-throughput register access and real-time card state updates |
| ESD protection (card side) | 6 kV HBM - ensures robustness against electrostatic discharge during card insertion/removal in uncontrolled environments |
| Max clock output | 20 MHz - programmable division by 1/2/4/5; supports full-speed synchronous card protocols and low-power 1–2.2 MHz modes |
| Shutdown current | 25 µA typical - maintains card presence monitoring on Slot 1 only, enabling wake-on-insert functionality in battery-backed systems |
| Operating temperature | −25 °C to +85 °C - qualified for deployment in retail and outdoor payment terminals without forced cooling |
Pinout & Package
Package: TFBGA64 (SOT1073-1), plastic thin fine-pitch ball grid array with 64 solder balls, footprint optimized for compact, secure POS terminal PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDA / SCL | I²C data/clock interface | Open-drain I/O referenced to VDD(INTF); requires external pull-up for bidirectional communication with host MCU |
| VDD / VDD(INTF) | Main and interface power supplies | Independent rails enable mixed-voltage system integration; VDD(INTF) can be lower than VDD for energy-efficient MCU interfacing |
| VCC(1)–VCC(5) | Card slot supply outputs | Five regulated outputs with ±5 % accuracy; each supports 55 mA (5 V/3 V) or 35 mA (1.8 V) continuous load |
| RST(1)–RST(5) | Card reset drivers | Current-limited to 20 mA; timing controlled by embedded pulse counter (asynchronous) or register (synchronous) |
| CLK(1)–CLK(5) | Card clock generators | Programmable 1–20 MHz output; supports stop/HIGH/LOW states and synchronous frequency changes without glitches |
| I/O(1)–I/O(5) | Half-duplex card I/O buffers | ±15 mA current-limited, 1 MHz max frequency; electrically isolated per slot to prevent cross-talk during multi-card operation |
| PRES(1)/PRES(2) | Card presence detection | Dedicated inputs with 17.8 ms typ debouncing; STAP3/STAP4/STAP5 extend presence sensing to Slots 3–5 |
| IRQN | Interrupt output | Active-low open-drain signal; asserts on card insertion/removal (Slot 1), short-circuit, or voltage dropout events |
Key Features
| Feature | Design Value |
|---|---|
| I²C-controlled multi-slot interface | Manages up to five physical card slots (2 main + 4 SAM) with single I²C master, reducing MCU GPIO count and firmware complexity |
| Programmable VCC(n) regulation | Delivers precise 1.8 V/3 V/5 V ±5 % to each slot independently, eliminating need for external LDOs and simplifying BOM for EMV-certified designs |
| Integrated DC-to-DC converter | Generates card supply from main VDD rail with 85 % typical efficiency; supports 116 mA total load (two full-power + three low-power slots) |
| Hardware-assisted power sequencing | Automates activation/deactivation sequences on short-circuit, card removal, or VDD/VDD(INTF) dropout - no MCU intervention required |
| EMV 4.31 & ISO 7816-3 compliance | Built-in timing, voltage, and electrical characteristics meet payment industry certification requirements out-of-the-box |
| 6 kV card-side ESD protection | Withstands repeated human-body-model discharges during field use, reducing failure rates in high-traffic retail environments |
Applications
| EMV Payment Terminal | Multi-SAM Secure Reader |
|---|---|
Use Scenario: Integrated into countertop or portable POS terminals processing chip-based credit/debit cards and contactless transactions via SAM modules. IC Role / Device Role / Timing Role: Central smart card interface managing power, reset, clock, and I/O for up to two main cards and four SAMs under EMV 4.31 protocol timing constraints. Use Value: Enables single-chip support for dual-interface (contact + contactless) readers with hardware-enforced security isolation between SAMs and main cards. | Use Scenario: Embedded in secure access control panels or government ID verification kiosks requiring concurrent authentication via multiple cryptographic SAMs. IC Role / Device Role / Timing Role: Provides independent, electrically isolated card interfaces for four SAMs with synchronized clock generation and coordinated power sequencing. Use Value: Eliminates discrete power management components and reduces PCB area by 40 % compared to multi-IC solutions while maintaining EMV-level fault resilience. |
| Banking Self-Service Kiosk | Transportation Fare Collection |
Use Scenario: Deployed in ATM or cash deposit machines where reliability under frequent card insertion cycles is critical. IC Role / Device Role / Timing Role: Smart card controller handling hot-plug detection, thermal protection, and graceful deactivation during card ejection or power interruption. Use Value: Achieves >99.99 % uptime via automatic fault recovery and 17.8 ms hardware debouncing - prevents false card-present signals in high-vibration environments. | Use Scenario: Used in transit gate readers supporting national e-ticketing standards (e.g., Calypso, CIPURSE) with multi-application SAMs. IC Role / Device Role / Timing Role: Interface IC delivering precise 1.8 V/3 V/5 V card supplies and programmable clock division to match diverse transport card IC timing profiles. Use Value: Reduces qualification effort by providing pre-validated ISO 7816-3 electrical compliance across all supported card voltages and frequencies. |
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 VCC(n) generation and DC-to-DC converter | Targets PC/platform security, not POS terminal card interfacing; no native support for five-card topology or EMV 4.31 timing | Select only if system requires TPM functionality alongside basic card I/O; additional external power circuitry needed for multi-slot operation |
| TDA8029ET/C3 | Pin-compatible successor with enhanced ESD (8 kV), extended temperature range (−40 °C to +105 °C), and improved DC-to-DC efficiency (90 % typ) | Same functional scope but certified for automotive-grade deployments; backward-compatible register map and I²C addressing | Prefer for new designs requiring higher reliability margin or extended environmental qualification; drop-in replacement with no layout change |
Compared with SLB9670TT20FW, the TDA8026ET/C3E provides complete, self-contained multi-slot smart card power and signal management without external regulators or sequencers. Against TDA8029ET/C3, it offers identical functionality at lower cost and qualification tier, making it optimal for cost-sensitive, industrial-temperature POS terminals.
Availability
TDA8026ET/C3E is available at Aetrix Electronics and suitable for Point-of-Sale terminals, multi-SAM secure readers, and banking self-service kiosks requiring stable component supply throughout production lifecycles.
Supply support for TDA8026ET/C3E 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 payment and identification technologies.
The TDA8026ET/C3E belongs to NXP's smart card interface product line, engineered specifically for EMV-compliant payment terminals and secure multi-SAM systems requiring integrated power management and hardware-level fault resilience.
FAQ
What is the primary function of the TDA8026ET/C3E in a payment terminal?
The TDA8026ET/C3E serves as the central smart card interface IC in EMV-compliant payment terminals, managing power, reset, clock, and I/O signals for up to two main cards and four Security Access Modules (SAMs). It integrates an I²C-bus controller, DC-to-DC converter, and hardware sequencer to eliminate external components while meeting ISO 7816-3 and EMV 4.31 requirements. Its design enables reliable, secure, and compact multi-card support in TDA8026ET/C3E-based POS systems.
Does the TDA8026ET/C3E support both synchronous and asynchronous smart cards?
Yes, the TDA8026ET/C3E supports both synchronous and asynchronous smart cards across its five card slots. For asynchronous cards, RST(n) timing is controlled by an embedded programmable clock pulse counter; for synchronous cards, RST(n) is managed via register configuration. This dual-mode capability allows the TDA8026ET/C3E to interface with legacy and modern chip cards in the same terminal without firmware modification.
How does the TDA8026ET/C3E handle power management during card inactivity?
The TDA8026ET/C3E implements three 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 slots - or full shutdown via SDWNN pin assertion. These modes are hardware-automated, requiring no MCU polling, and ensure TDA8026ET/C3E meets stringent energy budgets in battery-assisted or thermally constrained POS designs.
What protection features does the TDA8026ET/C3E provide for card contact reliability?
The TDA8026ET/C3E includes thermal protection, short-circuit protection, and 6 kV HBM ESD protection on all card-side pins (VCC(n), RST(n), CLK(n), I/O(n)). Each card slot has independent current limiting (±15 mA on I/O, ~100 mA on VCC(n)), automatic deactivation on overcurrent, and hardware-debounced presence detection (17.8 ms typ). These features ensure TDA8026ET/C3E maintains operational integrity during repeated card insertions, misalignments, or electrical transients in high-traffic retail environments.
Is the TDA8026ET/C3E pin-compatible with other members of the TDA802x family?
The TDA8026ET/C3E shares the same TFBGA64 (SOT1073-1) package and pinout with TDA8029ET/C3, enabling direct PCB replacement. However, it is not pin-compatible with earlier variants like TDA8023 due to differences in auxiliary I/O mapping and register layout. Firmware written for TDA8026ET/C3E will run unchanged on TDA8029ET/C3, but TDA8026ET/C3E-specific features such as the C3 version's EMVC0 4.3 compliance require validation when migrating to other family members.
TDA8026ET/C3E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 64-TFBGA
- Packaging:
- Tray
- 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/C3E FAQ
1.How can I place an order for TDA8026ET/C3E through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA8026ET/C3E 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/C3E reliable?
The price and inventory of TDA8026ET/C3E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA8026ET/C3E is usually 5 days.
3.What payment methods are accepted for TDA8026ET/C3E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA8026ET/C3E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA8026ET/C3E?
TDA8026ET/C3E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA8026ET/C3E 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/C3E?
For technical support, including TDA8026ET/C3E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA8026ET/C3E requirements.
6.How does Aetrix verify that TDA8026ET/C3E is sourced from the original manufacturer or authorized distributors?
All TDA8026ET/C3E 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/C3E meets industry standards.
7.What is the process for return or replacement of TDA8026ET/C3E?
All TDA8026ET/C3E units undergo pre-shipment inspection (PSI). If there is an issue with TDA8026ET/C3E, 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/C3E part is unused and in its original packaging.
Return procedure for TDA8026ET/C3E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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