ISP1110.You can see this chip on the boards of mobile phones, in this case sony ericsson k530i.The ISP1110 is a Universal Serial Bus (USB) transceiver that supports Universal Asynchronous Receiver-Transmitter (UART) signaling mode.
-Fully complies with Universal Serial Bus Specification Rev. 2.0
– Supports USB data transfer at full-speed (12 Mbit/s)
– Integrated DP pull-up resistor to reduce external components
– Implemented internal DP pull-up resistor as described in ECN_27%_Resistor
– Integrated 5 V-to-3.3 V voltage regulator to power through USB line VBUS
– VBUS voltage presence is indicated on pin VBUSDET
– Pins VP and VM function in bidirectional mode, allowing pin count saving for ASIC
interface
– Used as a USB peripheral transceiver
– Stable RCV output during Single-Ended Zero (SE0) condition
– Two single-ended receivers with hysteresis
– Low-power operation
– Supports 2.8 V UART signaling mode on the DP and DM lines
– Supports VCC(I/O) voltage range from 1.65 V to 2.85 V
– Supports VCC(UART) voltage range from 2.7 V to 4.5 V
– Off-state supply current from VCC(UART) is less than 3 μA
– Static current from VCC(I/O) is less than 3 μA (typical 1 μA)
– Available in small HBCC16 (3 mm × 3 mm) lead-free and halogen-free package
