Overview
The NCN8026A, produced by onsemi, is a compact and cost-effective single SIM and smart card interface IC. This device is designed to be versatile, supporting 1.8 V, 3 V, and 5 V IC cards. It features a built-in very low drop-out and low noise regulator, ensuring enhanced performance with low VCC output ripple under load-transient conditions. The NCN8026A is fully compatible with ISO 7816-3, EMV 4.2, UICC, and other related standards, making it suitable for various smart card applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Regulator Power Supply Voltage (VDDP) | -0.3 | - | 5.5 | V |
| Power Supply from Microcontroller Side (VDD) | -0.3 | - | 5.5 | V |
| External Card Power Supply (CVCC) | -0.3 | - | 5.5 | V |
| Operating Ambient Temperature Range (TA) | -40 | - | 85 | °C |
| Operating Junction Temperature Range (TJ) | -40 | - | 125 | °C |
| Maximum Junction Temperature (TJmax) | - | - | 125 | °C |
| Storage Temperature Range (Tstg) | -65 | - | 150 | °C |
| Clock Frequency (FCLKIN) | - | - | 27 | MHz |
| Input Voltage Level Low (VIL) | -0.3 | - | 0.3 x VDD | V |
| Input Voltage Level High (VIH) | 0.7 x VDD | - | VDD + 0.3 | V |
Key Features
- Single IC Card Interface supporting 1.8 V, 3 V, and 5 V IC cards.
- Fully compatible with ISO 7816-3, EMV 4.2, UICC, and related standards including NDS and other STB standards (Nagravision, Irdeto, Conax).
- Three bidirectional buffered I/O level shifters (C4, C7, and C8).
- 1.8 V, 3.0 V, or 5.0 V ± 5% regulated card power supply with low VCC ripple.
- Independent power supply range on the controller interface (VDD = 1.6 V to 5.5 V).
- Handles Class A, B, and C smart cards.
- Short circuit protection on all card pins.
- Supports up to 27 MHz input clock with internal division ratio 1/1, 1/2, 1/4, and 1/8.
- HBM ESD protection on card pins up to +8 kV.
- Activation/deactivation sequences (ISO7816 Sequencer) and fault protection mechanisms.
- Interrupt signal INT for card presence and faults.
- Chip select pin (CS) for dual card operating.
- External under-voltage lockout threshold adjustment on VDD (PORADJ Pin).
- Available in QFN-24 package format.
Applications
- Pay TV, Set Top Box Decoder with Conditional Access and Pay-per-View.
- Conditional Access Module (CAM / CAS).
- SIM card interface applications (UICC / USIM).
- Point Of Sales and Transaction Terminals.
- Electronic Payment and Identification.
Q & A
- What are the supported voltage levels for the NCN8026A?
The NCN8026A supports 1.8 V, 3 V, and 5 V IC cards.
- What standards is the NCN8026A compatible with?
The NCN8026A is fully compatible with ISO 7816-3, EMV 4.2, UICC, and related standards including NDS and other STB standards.
- What is the maximum clock frequency supported by the NCN8026A?
The NCN8026A supports up to 27 MHz input clock.
- Does the NCN8026A have ESD protection?
- What is the purpose of the PORADJ pin?
The PORADJ pin is used to adjust the under-voltage lockout threshold on VDD.
- What types of smart cards does the NCN8026A support?
The NCN8026A handles Class A, B, and C smart cards.
- Does the NCN8026A have short circuit protection?
- What is the package format of the NCN8026A?
The NCN8026A is available in a QFN-24 package format.
- What are some typical applications of the NCN8026A?
Typical applications include Pay TV, Set Top Box Decoder, Conditional Access Module, SIM card interface applications, Point Of Sales and Transaction Terminals, and Electronic Payment and Identification.
- How does the NCN8026A handle card presence detection?
The NCN8026A uses a card presence pin (PRES) with a built-in debounce timer to detect card presence.
