This datasheet provides a detailed introduction to the 73S8009C, including power management, smart card interface, etc.
The 73S8009C integrates power conversion, regulation and smart‑card interface functions in a single IC. It supports operation from a 2.7 V‑6.5 V supply, or from a combination of battery (4.0‑6.5 V) and USB (4.4‑5.5 V), and provides selectable card voltages of 1.8 V, 3 V or 5 V. The device includes handshaking signals, emergency de‑activation, and low‑power off mode (<1 µA).
Typical applications include handheld PIN‑pad readers, point‑of‑sale terminals and general‑purpose smart‑card readers. The IC is offered in a 32‑pin lead‑free QFN package and meets industrial temperature specifications.
| Input voltage range (VPC) | 2.7 V – 6.5 V |
|---|---|
| Smart‑card voltage options | 1.8 V, 3 V, 5 V |
| Maximum card current | 65 mA |
| Card over‑current detection limit | 150 mA max |
| Package type | 32‑pin QFN |
| Operating temperature range | Industrial (‑40 °C to +85 °C) |
It can operate from a single 2.7 V to 6.5 V supply, or from battery 4.0‑6.5 V and USB 4.4‑5.5 V sources.
In the off state the current consumption is less than 1 µA.
The IC can supply 1.8 V, 3 V or 5 V to the smart card.
It is offered in a 32‑pin lead‑free QFN package.