NCN4555
Features
- Supports 1.8 V or 3.0 V Operating SIM Card
- The LDO is able to Supply More than 50 m A under 1.8 V and 3.0 V
- Built- in Pullup Resistor for I/O Pin in Both Directions
- All Pins are Fully ESD Protected According to ISO- 7816
Specifications
- ESD Protection on SIM Pins in Excess of 7 k V (Human Body Model)
- Supports up to More than 5 MHz Clock
- Low- Profile 3x3 QFN- 16 Package
- These are Pb- Free Devices-
Typical Applications
- SIM Card Interface Circuit for 2G, 2.5G and 3G Mobile Phones
- Identification Module
- Smart Card Readers
- Wireless PC Cards
1.6 V to 5.5 V 2.7 V to 5.5 V
0.1m F 0.1m F
MPU or Microcontroller NCN4555
P3 P2 P1 P0
SIM Card Detect
3 VDD 1 STOP 2 MOD_VCC 14 RST
13 CLK 15 I/O
SIM_VCC 7 SIM_RST 9 SIM_CLK 11
SIM_I/O 8
1 2 3 4
VCC GND RST CLK I/O C4 C8
5 6 7 8
DET DET
1m F GND
Figure 1. Typical Interface Application
- For additional information on our Pb- Free strategy and soldering details, please download the ON Semiconductor...
