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Home > Products > Integrated Circuits (ICs) > Interface > Specialized

Analog Devices Inc./Maxim Integrated 73S8014RN-IL/F

Name: 73S8014RN-IL/F
Brand: Analog Devices Inc./Maxim Integrated
SKU: 73S8014RN-IL/F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 73S8014RN-IL/F

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Specialized

Package:: 20-SOIC (0.295", 7.50mm Width)

Datasheet:: 73S8014RN-IL/F.pdf

Description:: IC INTERFACE SPECIALIZED 20SOIC

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Product details

Overview

The 73S8014RN-IL/F from Teridian Semiconductor is a single smart card (ICC) interface IC designed for asynchronous smart card support in Set-Top Box and A/V conditional access systems. It delivers ISO 7816-3, EMV 4.0, and NDS compliance; integrates an LDO regulator supporting 3V/5V card voltage selection; provides true 130mA over-current detection; and operates with 20-pin SO package, 2.7–5.5V digital supply (VDD), and 4.75–5.5V LDO input (VPC).

For engineers reviewing the 73S8014RN-IL/F datasheet, 73S8014RN-IL/F pinout, 73S8014RN-IL/F application, or 73S8014RN-IL/F equivalent, key selection criteria include NDS-compliant clock division (÷1, ÷2, ÷4, ÷6 from 27MHz), VDD fault threshold adjustability via VDDF_ADJ, embedded LDO-based card power, and firmware compatibility with 8024-type interfaces.

Technical Context

The 73S8014RN-IL/F implements a dedicated ISO 7816-3 activation/deactivation sequencer with automated hardware-triggered deactivation on VDD undervoltage, card over-current (>130mA), or VCC fault. Its clock generation supports either external 27MHz clock or crystal oscillator with programmable dividers (÷1, ÷2, ÷4, ÷6) to meet NDS-specified rates of 4.5, 6.75, and 13.5MHz.

Card interface signals (I/O, RST, CLK, VCC) are level-shifted and driven by an internal LDO powered from VPC, while digital I/Os (CMDVCC, RSTIN, 5V/#V, CLKDIV1/2, OFF, I/OUC) operate from VDD. The OFF interrupt pin provides open-drain fault reporting-including card presence, removal, and voltage/fault events-with internal 20kΩ pull-up to VDD.

Key Specifications

Parameter	Value and Actual Design Meaning
VDD Supply Range	2.7V to 5.5V - powers digital logic and I/OUC interface; defines VIH/VIL thresholds for host control pins.
VPC Supply Range	4.75V to 5.5V - dedicated input for LDO regulator; enables EMV 4.0 (4.75V min) and NDS (4.85V min) compliance.
Card Voltage Output	3V or 5V selectable via 5V/#V pin - regulated by internal LDO; supports up to 65mA continuous load per ISO/EMV/NDS.
Max Card Clock Frequency	20MHz - achievable with external 27MHz source and ÷1 divider; meets NDS high-speed mode requirements.
Over-Current Detection	130mA max - true current-sense circuitry (not VCC drop-based); triggers immediate card deactivation on fault.
VDD Fault Threshold	Adjustable via VDDF_ADJ pin - default 2.4V nominal; externally configurable to match host controller operating voltage window.
ESD Protection	±6kV HBM on card interface pins - protects I/O, RST, CLK, VCC, PRES against electrostatic discharge during insertion/removal.

Pinout & Package

Package: 20-pin SO (Small Outline) - RoHS-compliant, lead-free, 0.3" body width, standard JEDEC MS-013AC footprint.

Pin/Terminal	Circuit Role	Design Meaning
I/O (Pin 14)	Smart card bidirectional data line	Drives/receives ISO 7816 I/O signal with 11kΩ internal pull-up to VCC; supports 1MHz max data rate.
RST (Pin 15)	Smart card reset output	Active-high open-drain driver with 30mA current limit; controlled by sequencer during activation/deactivation.
CLK (Pin 17)	Smart card clock output	Programmable frequency output (up to 20MHz); slew rate controlled (≤0.5 V/ns at 5V) for EMI reduction.
PRES (Pin 19)	Card presence sense input	Active-high digital input with internal high-impedance pull-down; detects mechanical switch closure at card slot.
VCC (Pin 18)	Regulated card power output	LDO output (3V/5V selectable); requires 0.5–1.5μF low-ESR ceramic capacitor to GND per NDS spec.
CMDVCC (Pin 6)	Card activation command input	Negative-asserted enable: low pulse initiates ISO 7816-3 activation sequence if card is present.
5V/#V (Pin 7)	Card voltage selection input	High = 5V VCC, low = 3V VCC; defaults high via internal pull-up; must remain static during CMDVCC low phase.
CLKDIV1/2 (Pins 20,5)	Clock divider control inputs	Set divide ratio (÷1, ÷2, ÷4, ÷6) from XTAL/external clock; default ÷2 via internal pull-ups.
OFF (Pin 1)	Fault & presence interrupt output	Open-drain active-low signal; reports card insertion, removal, VDD fault, or over-current; internal 20kΩ pull-up to VDD.
I/OUC (Pin 3)	Host processor data I/O	Bidirectional interface between host MCU and card I/O; 11kΩ pull-up to VDD; isolated from card-side noise.

Key Features

Feature	Design Value
NDS-compliant clock division	Four fixed dividers (÷1, ÷2, ÷4, ÷6) from 27MHz source yield exact NDS frequencies: 4.5MHz, 6.75MHz, 13.5MHz, and 27MHz.
True card over-current protection	Dedicated current-sense circuit triggers deactivation at ≥130mA - avoids false trips from transient VCC droop seen in non-Teridian 8024 ICs.
Adjustable VDD fault threshold	VDDF_ADJ pin accepts external resistor network to set custom deactivation voltage - enables alignment with host MCU's brown-out level.
Integrated LDO for card power	Eliminates need for external 3V/5V regulators; reduces BOM count and PCB area while maintaining ±5% VCC regulation under 65mA load.
Firmware compatibility with 8024 ICs	Same register map and bus protocol as 73S8024RN; allows drop-in replacement in existing 8024-based designs without firmware changes.

Applications

Set-Top Box Conditional Access	Pay-per-View Smart Card Reader
Use Scenario: Embedded in cable/satellite STB to authenticate subscriber smart cards for content decryption and service entitlement. IC Role / Device Role / Timing Role: Smart card interface controller managing VCC sequencing, CLK/RST timing, and fault-safe deactivation during channel switching or power loss. Use Value: Enables NDS-compliant 13.5MHz card clock operation and automatic card power-off on VDD brown-out - critical for secure, standards-certified CA modules.	Use Scenario: Integrated into hotel or kiosk PPV terminals where users insert smart cards to unlock premium content or services. IC Role / Device Role / Timing Role: Dual-voltage (3V/5V) card interface with true over-current detection, ensuring safe hot-plug operation and preventing card damage during repeated insertion cycles. Use Value: Reduces system-level protection components (e.g., external current limiters) and eliminates firmware rework due to 8024 firmware compatibility.
General-Purpose Smart Card Reader	EMV 4.0 Payment Terminal Interface
Use Scenario: Used in USB or serial-connected readers for ID verification, access control, or e-government applications requiring ISO 7816-3 compliance. IC Role / Device Role / Timing Role: Standalone ICC interface providing precise activation/deactivation timing, 6kV ESD-protected I/O, and host-controlled voltage selection. Use Value: Delivers certified ISO 7816-3 behavior with minimal external components - accelerates reader certification and lowers bill-of-materials cost.	Use Scenario: Embedded in point-of-sale terminals to interface EMV 4.0 payment cards for contact-based transaction processing. IC Role / Device Role / Timing Role: Regulated 5V card power delivery with 4.75–5.5V VPC input range and ±6kV ESD protection on all card pins - meeting EMV 4.0 electrical robustness requirements. Use Value: Ensures stable VCC under dynamic load (e.g., during cryptographic operations) and prevents false resets via accurate VDD supervision.

Set-Top Box Conditional Access

Pay-per-View Smart Card Reader

Use Scenario: Embedded in cable/satellite STB to authenticate subscriber smart cards for content decryption and service entitlement.

IC Role / Device Role / Timing Role: Smart card interface controller managing VCC sequencing, CLK/RST timing, and fault-safe deactivation during channel switching or power loss.

Use Value: Enables NDS-compliant 13.5MHz card clock operation and automatic card power-off on VDD brown-out - critical for secure, standards-certified CA modules.

Use Scenario: Integrated into hotel or kiosk PPV terminals where users insert smart cards to unlock premium content or services.

IC Role / Device Role / Timing Role: Dual-voltage (3V/5V) card interface with true over-current detection, ensuring safe hot-plug operation and preventing card damage during repeated insertion cycles.

Use Value: Reduces system-level protection components (e.g., external current limiters) and eliminates firmware rework due to 8024 firmware compatibility.

General-Purpose Smart Card Reader

EMV 4.0 Payment Terminal Interface

Use Scenario: Used in USB or serial-connected readers for ID verification, access control, or e-government applications requiring ISO 7816-3 compliance.

IC Role / Device Role / Timing Role: Standalone ICC interface providing precise activation/deactivation timing, 6kV ESD-protected I/O, and host-controlled voltage selection.

Use Value: Delivers certified ISO 7816-3 behavior with minimal external components - accelerates reader certification and lowers bill-of-materials cost.

Use Scenario: Embedded in point-of-sale terminals to interface EMV 4.0 payment cards for contact-based transaction processing.

IC Role / Device Role / Timing Role: Regulated 5V card power delivery with 4.75–5.5V VPC input range and ±6kV ESD protection on all card pins - meeting EMV 4.0 electrical robustness requirements.

Use Value: Ensures stable VCC under dynamic load (e.g., during cryptographic operations) and prevents false resets via accurate VDD supervision.

Equivalent & Alternatives

The following parts are listed as comparable options for similar smart card interface applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
73S8024RN-IL/F	28-pin SO package; supports synchronous + asynchronous cards; includes additional control registers and dual-clock domains.	Required for legacy systems needing full 8024 feature set (e.g., synchronous protocols, extended diagnostics).	Select when synchronous card support or enhanced register visibility is mandatory; not pin-compatible with 73S8014RN-IL/F.
SLC1000A-120	16-pin TSSOP; lacks VDD fault adjustment, fixed 2.5V/5V VCC; no NDS clock divider support; lower ESD rating (±4kV).	Suitable only for cost-sensitive, non-NDS consumer readers with basic ISO 7816-3 needs.	Choose only for simplified, low-cost implementations where NDS compliance and adjustable supervision are unnecessary.

Compared with 73S8024RN-IL/F and SLC1000A-120, the 73S8014RN-IL/F uniquely balances NDS-specific clock flexibility, field-adjustable VDD supervision, and 20-pin compactness - making it optimal for STB and PPV systems requiring certification-ready, low-BOM smart card interfacing.

Availability

The 73S8014RN-IL/F is available at Aetrix Electronics and suitable for Set-Top Box Conditional Access, Pay-per-View smart card readers, and EMV 4.0 payment terminal designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for 73S8014RN-IL/F 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

Teridian Semiconductor was a fabless analog/mixed-signal IC designer specializing in metering, power management, and secure interface solutions before its acquisition by Maxim Integrated in 2010.

The 73S80xxR family-including the 73S8014RN-IL/F-was engineered specifically for cost-optimized, standards-compliant smart card interfacing in consumer A/V and conditional access equipment.

FAQ

What standards does the 73S8014RN-IL/F comply with?

The 73S8014RN-IL/F fully complies with ISO/IEC 7816-3 (electrical interface), EMV 4.0 (payment card interoperability), and NDS (Nagra Data Systems) specifications. Compliance is verified through on-chip sequencer logic, LDO regulation accuracy, clock divider ratios, and ±6kV HBM ESD protection on card pins - all confirmed in the official Teridian DS_8014RN_014 datasheet.

How does the 73S8014RN-IL/F handle card over-current events?

The 73S8014RN-IL/F uses true current-sense circuitry-not VCC voltage monitoring-to detect card over-current. When load exceeds 130mA, the device immediately initiates emergency deactivation, cutting VCC and asserting OFF low. This behavior is documented in Section 2.4 (Table 5, ICCF parameter) and Section 3.9 of the 73S8014RN-IL/F datasheet.

Can the 73S8014RN-IL/F generate NDS-required clock frequencies from a 27MHz source?

Yes. The 73S8014RN-IL/F supports four fixed clock dividers (÷1, ÷2, ÷4, ÷6) applied to a 27MHz input, yielding exact NDS frequencies: 27MHz, 13.5MHz, 6.75MHz, and 4.5MHz. This capability is explicitly stated in the "Advantages" section and validated in Table 1's CLKDIV1/CLKDIV2 truth table within the 73S8014RN-IL/F datasheet.

Is the 73S8014RN-IL/F firmware compatible with other 8024-type ICs?

Yes. The 73S8014RN-IL/F is firmware compatible with all 8024-type ICs, including the 73S8024RN-IL/F. It shares identical register mapping, control bus timing, and command structure - enabling reuse of existing host firmware without modification. This is confirmed in the "DESCRIPTION" section of the 73S8014RN-IL/F datasheet.

What is the function of the VDDF_ADJ pin on the 73S8014RN-IL/F?

The VDDF_ADJ pin on the 73S8014RN-IL/F allows external adjustment of the VDD fault detection threshold using a resistor divider. By connecting resistors between VDDF_ADJ, VDD, and GND, designers can customize the voltage at which the device deactivates the card - for example, to match the brown-out threshold of the host microcontroller. Details are provided in Section 2.7 (Table 8) and Figure 18 of the 73S8014RN-IL/F datasheet.

73S8014RN-IL/F Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: -

Package/Case:: 20-SOIC (0.295", 7.50mm Width)

Packaging:: Tube

Product Status:: Obsolete

Applications:: Set-Top Boxes

Interface:: -

Voltage - Supply:: 2.7V ~ 5.5V

Supplier Device Package:: 20-SOIC

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

73S8014RN-IL/F FAQ

1.How can I place an order for 73S8014RN-IL/F through Aetrix?

Please submit a Request for Quotation (RFQ) for 73S8014RN-IL/F 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 73S8014RN-IL/F reliable?

The price and inventory of 73S8014RN-IL/F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 73S8014RN-IL/F is usually 5 days.

3.What payment methods are accepted for 73S8014RN-IL/F?

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73S8014RN-IL/F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 73S8014RN-IL/F 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 73S8014RN-IL/F?

For technical support, including 73S8014RN-IL/F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 73S8014RN-IL/F requirements.

6.How does Aetrix verify that 73S8014RN-IL/F is sourced from the original manufacturer or authorized distributors?

All 73S8014RN-IL/F 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 73S8014RN-IL/F meets industry standards.

7.What is the process for return or replacement of 73S8014RN-IL/F?

All 73S8014RN-IL/F units undergo pre-shipment inspection (PSI). If there is an issue with 73S8014RN-IL/F, 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 73S8014RN-IL/F part is unused and in its original packaging.

Return procedure for 73S8014RN-IL/F:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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