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NXP Semiconductors TDA8026ET/C2,518
- Part No.:
- TDA8026ET/C2,518
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 64-TFBGA
- Datasheet:
-
TDA8026ET/C2,518.pdf
- Description:
- IC INTERFACE SPECIALIZED 64TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,951
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Product details
Overview
TDA8026ET/C2,518 from NXP Semiconductors is a smart card interface IC designed for multi-slot Point-of-Sale (POS) terminals. It supports up to two synchronous/asynchronous main cards and four Security Access Modules (SAMs), delivers 5 V / 3 V / 1.8 V regulated card supply voltages with ±5 % accuracy, features I²C-bus control (100 kHz / 400 kHz), and integrates thermal/short-circuit protection on all five card slots.
For engineers reviewing the TDA8026ET/C2,518 datasheet, TDA8026ET/C2,518 pinout, TDA8026ET/C2,518 application, or TDA8026ET/C2,518 equivalent, this device serves as a cost-optimized, EMV 4.31–compliant analog interface with programmable power reduction, embedded deactivation sequencing, and 6 kV ESD protection on card-side I/O lines.
Technical Context
The TDA8026ET/C2,518 implements an integrated DC-to-DC converter generating VCC(1)–VCC(5) at 5 V / 3 V / 1.8 V ±5 %, supporting up to 55 mA per slot (116 mA typical total). Its dual-clock architecture accepts CLKIN1 for slot 1 and CLKIN2 for slots 2–5, enabling independent clock generation up to 20 MHz with programmable division (÷1, ÷2, ÷4, ÷5).
It uses a two-tier I²C addressing scheme (A0-configurable base address) to access Bank 0 (slot selection/interrupt status) and Bank 1 (per-slot registers), with dedicated RST(n), CLK(n), and I/O(n) buffers per slot, plus auxiliary I/OUC1/I/OUC2 transparent paths and IRQN/INTAUXN interrupt signaling referenced to VDD(INTF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage (VDD) | 2.7 V to 5.5 V - powers internal analog circuitry and DC-to-DC converter |
| Interface supply (VDD(INTF)) | 1.6 V to 3.6 V - powers I²C interface, RST/CLK/I/O buffers, and presence detection |
| Card supply accuracy | ±5 % at 5 V / 3 V / 1.8 V - ensures ISO 7816-3 compliance for all supported card types |
| Max clock frequency | 20 MHz - supports high-speed synchronous card protocols and EMV contact transactions |
| ESD protection (card side) | 6 kV HBM - meets robustness requirements for exposed card connector interfaces in payment terminals |
| Shutdown current | 25 µA typical - enables ultra-low-power standby with persistent card slot 1 presence monitoring |
| Card I/O current limit | ±15 mA - prevents damage during hot-plug events and short circuits on card contacts |
Pinout & Package
Package: TFBGA64 (SOT1073-1), 5 mm × 5 mm, 0.5 mm pitch, top-side marking compatible with automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 2.7–5.5 V; powers DC-to-DC converter and internal regulators |
| VDD(INTF) | Microcontroller interface supply | 1.6–3.6 V reference for SCL/SDA/A0/IRQN and all digital control logic |
| SDA / SCL | I²C-bus data/clock | Open-drain, VDD(INTF)-referenced; supports Standard (100 kHz) and Fast (400 kHz) modes |
| IRQN | Interrupt output | Active-low open-drain signal indicating card insertion/removal or fault event on slot 1 |
| SDWNN | Shutdown/reset input | Active-low control: drives device into 25 µA shutdown mode with slot 1 presence active |
| VCC(1)–VCC(5) | Card supply outputs | Individually regulated 5 V / 3 V / 1.8 V outputs with current limiting and thermal protection |
| RST(1)–RST(5) | Card reset outputs | Current-limited (20 mA) buffered reset signals with programmable pulse timing |
| CLK(1)–CLK(5) | Card clock outputs | Programmable 1–20 MHz outputs with stop/HIGH/LOW states and slew-rate control |
| I/O(1)–I/O(5) | Card data I/O | Half-duplex, bidirectional, 1 MHz max, ±15 mA current-limited buffered lines |
| PRES(1)/PRES(2) | Card presence inputs | Dedicated debounced (17.8 ms typ.) inputs for slots 1 and 2 |
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 |
| Programmable power reduction | Enables clock-stop mode on inactive slots, reducing ICC by >90 % versus full active mode |
| Integrated DC-to-DC converter | Generates five independent card supplies from single VDD input; eliminates need for external DC/DC ICs |
| Automatic fault recovery | Hardware-initiated deactivation on short-circuit, overcurrent, or voltage dropout - no firmware intervention required |
| Configurable I²C addressing | A0 pin selects between two base addresses (48h/4Ch), allowing dual-TDA8026ET/C2,518 systems on same bus |
Applications
| EMV Contact Payment Terminal | Multi-SAM Secure Reader |
|---|---|
Use Scenario: A countertop POS terminal accepting chip-and-PIN debit/credit cards via ISO 7816-compliant contact interface. IC Role / Device Role / Timing Role: Central smart card interface managing power, clock, reset, and I/O for up to two primary cards while coordinating with four SAMs for cryptographic key storage and transaction signing. Use Value: Enables single-chip support for dual-card concurrent operation and EMV 4.31 certification without external voltage regulators or discrete protection components. | Use Scenario: A secure access control reader using multiple SAMs to authenticate credentials across different security domains (e.g., corporate ID, government ePassport, banking token). IC Role / Device Role / Timing Role: Analog front-end hub providing isolated, protected VCC/RST/CLK/I/O to each SAM while sharing common I²C control and interrupt resources with host microcontroller. Use Value: Reduces BOM count and PCB area by consolidating five independent SAM interfaces into one TDA8026ET/C2,518 with shared power management and fault handling. |
| Banking Kiosk Interface | Government ID Card Reader |
Use Scenario: Self-service ATM or cash deposit kiosk requiring reliable, tamper-resistant smart card reading for account verification and PIN entry. IC Role / Device Role / Timing Role: High-reliability card interface with thermal/short-circuit protection, 6 kV ESD hardening, and automatic deactivation sequences to prevent card damage during misuse or environmental stress. Use Value: Extends field lifetime and reduces service calls by eliminating card-slot failures caused by voltage transients or contact faults. | Use Scenario: National ID card enrollment station processing eID cards compliant with ICAO 9303 and national PKI standards. IC Role / Device Role / Timing Role: Multi-voltage card interface supporting 1.8 V, 3 V, and 5 V eID cards simultaneously, with precise VCC regulation (±5 %) and controlled rise/fall times for secure cryptographic operations. Use Value: Guarantees interoperability across heterogeneous ID card populations without manual voltage switching or adapter hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLB9670TT10FW | Trusted Platform Module (TPM) with integrated smart card controller; lacks multi-slot analog interface, DC-to-DC, or card presence detection | Designed for host-system root-of-trust, not direct card slot interfacing | Select only if system-level security (not card interface) is the primary requirement |
| TDA8029ET/C2 | Successor IC with identical pinout, enhanced ESD (8 kV), extended temperature range (−40 °C to +105 °C), and improved DC-to-DC efficiency | Drop-in replacement for new designs requiring higher reliability in industrial environments | Prefer TDA8029ET/C2 for new designs; TDA8026ET/C2,518 remains valid for legacy POS hardware maintenance |
Compared with SLB9670TT10FW, the TDA8026ET/C2,518 delivers dedicated analog smart card interfacing with five-slot power management, whereas the SLB9670 is a digital security co-processor. Compared with TDA8029ET/C2, the TDA8026ET/C2,518 offers proven field reliability in certified EMV terminals but lacks extended temperature and ESD specs.
Availability
TDA8026ET/C2,518 is available at Aetrix Electronics and suitable for Point-of-Sale terminals, EMV-certified payment systems, and multi-SAM secure readers requiring stable component supply and long-term lifecycle support.
Supply support for TDA8026ET/C2,518 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.
The TDA8026ET/C2,518 belongs to NXP's smart card interface product line, engineered specifically for cost-sensitive, high-reliability EMV 4.31 payment terminal applications with stringent safety and regulatory compliance requirements.
FAQ
What is the maximum number of smart cards the TDA8026ET/C2,518 can manage simultaneously?
The TDA8026ET/C2,518 supports up to two main smart cards (synchronous or asynchronous) and up to four Security Access Modules (SAMs) concurrently. While it provides five independent VCC/RST/CLK/I/O channels (slots 1–5), its functional architecture designates slots 1–2 for primary card use and slots 3–5 for SAM-only operation, as confirmed in the General Description and Block Diagram sections of the datasheet.
Does the TDA8026ET/C2,518 support 1.8 V smart cards?
Yes, the TDA8026ET/C2,518 supports 1.8 V smart cards. Its integrated DC-to-DC converter delivers regulated VCC(n) outputs at 5 V, 3 V, or 1.8 V ±5 %, with dedicated current limiting and ripple control per slot. The datasheet specifies 1.71–1.89 V output range for 1.8 V cards at ≤35 mA DC load, meeting ISO 7816-3 low-voltage card requirements.
How does the TDA8026ET/C2,518 handle card insertion and removal events?
The TDA8026ET/C2,518 uses dedicated PRES(1) and PRES(2) inputs with built-in 17.8 ms (typical) debouncing to detect card presence on slots 1 and 2. Upon insertion or removal, it asserts the active-low IRQN interrupt to the host microcontroller. In shutdown mode, only PRES(1) remains active, enabling wake-up capability while consuming just 25 µA.
What I²C-bus speeds does the TDA8026ET/C2,518 support?
The TDA8026ET/C2,518 supports both Standard mode (100 kHz) and Fast mode (400 kHz) I²C-bus communication. Its I²C interface operates as a slave device with configurable base addresses (48h/4Ch via A0 pin), and includes integrated pull-up resistors on SDA/SCL referenced to VDD(INTF), as specified in Section 8.4 of the datasheet.
Is the TDA8026ET/C2,518 pin-compatible with the TDA8029ET/C2?
Yes, the TDA8026ET/C2,518 is pin-compatible with the TDA8029ET/C2. Both devices use the TFBGA64 (SOT1073-1) package with identical ball map and electrical pin functions. The TDA8029ET/C2 adds enhanced ESD protection (8 kV vs. 6 kV) and extended temperature range but maintains full mechanical and logical compatibility for drop-in replacement in existing designs.
TDA8026ET/C2,518 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/C2,518 FAQ
1.How can I place an order for TDA8026ET/C2,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA8026ET/C2,518 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/C2,518 reliable?
The price and inventory of TDA8026ET/C2,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA8026ET/C2,518 is usually 5 days.
3.What payment methods are accepted for TDA8026ET/C2,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDA8026ET/C2,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDA8026ET/C2,518?
TDA8026ET/C2,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA8026ET/C2,518 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/C2,518?
For technical support, including TDA8026ET/C2,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA8026ET/C2,518 requirements.
6.How does Aetrix verify that TDA8026ET/C2,518 is sourced from the original manufacturer or authorized distributors?
All TDA8026ET/C2,518 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/C2,518 meets industry standards.
7.What is the process for return or replacement of TDA8026ET/C2,518?
All TDA8026ET/C2,518 units undergo pre-shipment inspection (PSI). If there is an issue with TDA8026ET/C2,518, 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/C2,518 part is unused and in its original packaging.
Return procedure for TDA8026ET/C2,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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