Analog Devices Inc./Maxim Integrated 73S8014RN-ILR/F1

Overview

The 73S8014RN-ILR/F1 from Teridian Semiconductor is a single smart card (ICC) interface IC designed for Set-Top Box and A/V conditional access systems. It provides ISO 7816-3/EMV 4.0/NDS-compliant electrical interface, supports 3V/5V cards up to 65mA, integrates an LDO regulator for VCC generation, and features true over-current detection at 130mA max with programmable VDD fault threshold.

For engineers reviewing the 73S8014RN-ILR/F1 datasheet, 73S8014RN-ILR/F1 pinout, 73S8014RN-ILR/F1 application, or 73S8014RN-ILR/F1 equivalent, key selection criteria include NDS frequency divider support (÷1, ÷2, ÷4, ÷6), 20-pin SO package compatibility, dual-voltage card operation, embedded LDO regulation, and interrupt-driven fault reporting via OFF pin.

Technical Context

The 73S8014RN-ILR/F1 implements a dedicated ISO 7816-3 activation/deactivation sequencer with hardware-level control of VCC, RST, CLK, and I/O signals. Its on-chip LDO regulator accepts 4.75–5.5V input on VPC and delivers regulated 3V or 5V output to the card, while digital logic operates independently from VDD (2.7–5.5V).

Card clock generation supports either external 27MHz clock or crystal oscillator with selectable dividers (÷1, ÷2, ÷4, ÷6) to meet NDS requirements (4.5/6.75/13.5MHz). Fault detection includes VDD undervoltage (adjustable via VDDF_ADJ), VCC over-current (130mA limit), and card extraction - all triggering automated deactivation without host intervention.

Key Specifications

Pinout & Package

Package: 20-pin SO (Small Outline Package), RoHS-compliant, lead-free, 50°C/W thermal resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 73S8024RN and SLC1000, the 73S8014RN-ILR/F1 delivers optimized cost, size, and NDS-specific functionality - making it the preferred choice for volume Set-Top Box designs where asynchronous card support and regulatory compliance are primary requirements.

Availability

The 73S8014RN-ILR/F1 is available at Aetrix Electronics and suitable for Set-Top Box Conditional Access, Pay-TV smart card readers, and general-purpose smart card reader applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for 73S8014RN-ILR/F1 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 company specializing in smart card, energy metering, and communication interface solutions before its acquisition by Maxim Integrated in 2010.

The 73S80xxR family - including the 73S8014RN-ILR/F1 - was engineered specifically for cost-sensitive, high-volume consumer electronics requiring certified smart card interface functionality with minimal external components.

FAQ

What standards does the 73S8014RN-ILR/F1 comply with?

The 73S8014RN-ILR/F1 complies with ISO 7816-3 for physical and electrical characteristics, EMV 4.0 for payment card interoperability, and NDS for digital TV conditional access. It meets all specified voltage, current, timing, and fault response requirements in these standards - confirmed in its official datasheet DS_8014RN_014 Rev. 1.0. This compliance is enforced through integrated sequencers, LDO regulation, and hardware fault detection circuits within the 73S8014RN-ILR/F1.

How does the 73S8014RN-ILR/F1 handle card voltage selection?

The 73S8014RN-ILR/F1 selects card voltage via the 5V/#V pin: logic high configures the internal LDO for 5V VCC output, and logic low configures it for 3V. The pin includes an internal high-impedance pull-up, defaulting to 5V operation when unconnected. This selection directly controls the LDO's output regulation point and must remain static during active card sessions - as stated in the 73S8014RN-ILR/F1 datasheet Table 1 and Section 3.4.

Can the 73S8014RN-ILR/F1 generate NDS-compliant clock frequencies?

Yes, the 73S8014RN-ILR/F1 supports NDS-compliant card clock frequencies (4.5MHz, 6.75MHz, 13.5MHz) using its on-chip clock divider with inputs from either a 27MHz crystal or external clock. The CLKDIV1/CLKDIV2 pins configure division ratios of ÷1, ÷2, ÷4, or ÷6 - explicitly validated in the 73S8014RN-ILR/F1 datasheet Section "ADVANTAGES" and Table 1. This eliminates need for external clock synthesis circuitry in NDS-certified Set-Top Boxes.

What is the purpose of the VDDF_ADJ pin on the 73S8014RN-ILR/F1?

The VDDF_ADJ pin on the 73S8014RN-ILR/F1 allows external adjustment of the VDD undervoltage fault threshold - enabling customization of the shutdown point to match the host microcontroller's operating voltage range. A resistor network between VDDF_ADJ, VDD, and GND sets the trip voltage, as detailed in Figure 18 and Section 3.4 of the 73S8014RN-ILR/F1 datasheet. Leaving VDDF_ADJ open defaults to 2.4V nominal, but precise tuning is possible for systems requiring tighter brown-out coordination.

Does the 73S8014RN-ILR/F1 support true over-current detection?

Yes, the 73S8014RN-ILR/F1 implements true hardware-based over-current detection with a 130mA maximum limit - distinguishing it from implementations that infer over-current from VCC voltage drop. This function is confirmed in the "FEATURES" section and Table 5 of the 73S8014RN-ILR/F1 datasheet, and triggers immediate card deactivation upon detection. It operates independently of software and provides deterministic response time critical for EMV and NDS compliance.