The 73S8023C is a low-power, high efficiency, single smart card interface IC suitable for 3V and 5V cards. It provides full electrical compliance with ISO- 7816-3 and EMV 4.0 (EMV2000) specifications. Hardware support for any type of synchronous cards (memory cards) is provided.
The 73S8023C smart‑card interface IC provides full electrical compliance with ISO‑7816‑3 and EMV 4.0 specifications. It supports both synchronous and asynchronous cards, offers hardware‑assisted data exchange, and includes an activation/deactivation sequencer with emergency card deactivation.
The device operates from a single 2.7 V‑3.6 V supply, features an on‑chip DC‑DC converter with >80 % efficiency, and includes power‑down mode (2 µA typical), over‑current protection, voltage supervisors, and 6 kV ESD protection, making it suitable for battery‑powered POS terminals, payphones, set‑top boxes, and portable payment devices.
| Supply voltage | 2.7 V to 3.6 V |
|---|---|
| Power‑down current | 2 µA typical |
| DC‑DC converter efficiency | >80 % at VDD=3.3 V, VCC=5 V |
| Maximum card current | 100 mA (65 mA typical) |
| Over‑current detection limit | 150 mA max |
| ESD protection | 6 kV on card interface |
| Package | 5 mm × 5 mm 32‑QFN |
It operates from a single 2.7 V to 3.6 V power supply.
The power‑down mode consumes about 2 µA typical.
The converter provides greater than 80 % efficiency at VDD = 3.3 V and VCC = 5 V.
It includes 6 kV ESD protection, over‑current detection up to 150 mA, and voltage supervisors for VCC and VDD.