Overview
The NCN4555MNR2G is a level shifter analog circuit designed by onsemi to translate the voltages between a SIM Card and an external microcontroller or MPU. This device complies with the ISO7816-3 smart card interface standard, as well as GSM 11.11 and related standards (11.12 and 11.18), and 3G mobile requirements (IMT-2000/3G UICC standard). It features a built-in LDO-type DC-DC converter that can supply 1.8 V and 3.0 V to the SIM card, making it suitable for various mobile and smart card applications. The device also includes a low current shutdown mode activated via the STOP pin, which helps extend battery life.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Voltage Range (VDD) | 1.6 | 5.5 | V | |
| Power Supply Range (VBAT) | 2.7 | 5.5 | V | |
| Operating Current (ICC) at VDD = 1.6 to 5.5V | 7.0 | 12 | μA | |
| Shutdown Current (ICC_SD) at STOP = Low | 1.0 | μA | ||
| Short Circuit Current (SIM_VCC shorted to ground) | 175 | mA | ||
| Operating Ambient Temperature Range | -40 | 85 | °C | |
| ESD Protection (HBM, SIM card pins) | > 7 kV | |||
| Package Type | 16 lead QFN |
Key Features
- Built-in LDO-type DC-DC converter to supply 1.8 V and 3.0 V to the SIM card.
- Supports up to 5 MHz clock frequency.
- Built-in pullup resistor for I/O pin in both directions.
- Low current shutdown mode activated via the STOP pin to extend battery life.
- ESD protection on SIM pins in excess of 7 kV (Human Body Model).
- Low-profile 3x3 QFN-16 package.
- Operating voltage range from 1.6 to 5.5 V and power supply range from 2.7 to 5.5 V.
Applications
- SIM card interface circuit for 2G, 2.5G, and 3G mobile phones.
- Identification modules.
- Smart card readers.
- Wireless PC cards).
Q & A
- What is the primary function of the NCN4555MNR2G?
The NCN4555MNR2G is a level shifter analog circuit designed to translate the voltages between a SIM Card and an external microcontroller or MPU).
- What standards does the NCN4555MNR2G comply with?
The device complies with the ISO7816-3 smart card interface standard, as well as GSM 11.11 and related standards, and 3G mobile requirements (IMT-2000/3G UICC standard)).
- What is the operating voltage range of the NCN4555MNR2G?
The operating voltage range is from 1.6 to 5.5 V).
- How does the STOP pin function?
The STOP pin activates a low current shutdown mode when set to low, helping to extend battery life).
- What is the maximum short circuit current of the NCN4555MNR2G?
The maximum short circuit current is 175 mA when SIM_VCC is shorted to ground).
- What type of package does the NCN4555MNR2G come in?
The device comes in a 16 lead QFN package).
- What is the ESD protection level for SIM card pins?
The ESD protection level for SIM card pins is in excess of 7 kV (Human Body Model)).
- What are the typical applications of the NCN4555MNR2G?
Typical applications include SIM card interface circuits for mobile phones, identification modules, smart card readers, and wireless PC cards).
- What is the clock frequency support of the NCN4555MNR2G?
The device supports up to 5 MHz clock frequency).
- How does the MOD_VCC pin function?
The MOD_VCC pin selects the SIM card power supply voltage (SIM_VCC) between 1.8 V and 3.0 V).
