Features
Pin-programmable Mode
Supply Voltage Range 1.55V to 3.6V
PHY IC_USB1.0 Downstream Port
Bridge USB2.0 Section 7 to IC_USB1.0
Bridge IC_USB1.0 to USB2.0 Section 7
3.3V Voltage Reference
Two 70mA LDO Voltage Regulators
Less Than 5A Static Current on Each Supply
Power
Slew Rate Control to Minimize Radiated EMI
ESD 4kV Compliant with USB UICC
Management
Applications:
Mobile USB UICC (ETSI 102 600), PC USB UICC, Token USB
and Analog
Companions
Description
The AT73C260 is an Inter Chip USB transceiver fully compliant with the Universal
(PMAAC)
Serial Bus Specification, and more specifically with the IC_USB1.0 supplement. The
AT73C260 is a bidirectional differential interface. The AT73C260 is ideal for applica-
tions in mobile devices, PCs and USB tokens making use of an USB UICC.
AT73C260
The AT73C260s upstream facing port may be connected to three different interfaces:
Digital
USB2.0 section 7 with or without cable
Interchip USB
IC_USB1.0
Transceiver
The AT73C260s downstream port complies with IC_USB1.0. The AT73C260s mode
is selected by three pins. When PVCC is powered by 3.3V and pull down resistors are
added on PDM and PDP, the AT73C260s downstream port complies with USB2.0
(PHY - IC_USB1.0,
section 7.
Voltage Class
The AT73C260 includes a 3.5V Supply Monitor, a Low Power Band-Gap, a 3.3V
Converter,
70mA Linear Voltage Regulator and a 1.8V-3.0V 70mA Linear Voltage Regulator SIM
FTA compliant Test 27.17.2.1.
USB2.0 - IC_USB1.0
The AT73C260 is specified over the industrial temperature range - 40C to +85C.
Bridges)
The AT73C260 is available in a 3 X 3 mm, 0.5mm pitch, QFN16 package.
Preliminary
11030APMAAC13-Sep-101. Block Diagram
Figure 1-1. AT73C260 functional block diagram
9
AT73C260
PVRF
112
HVCC PVCC
Vref
3.3Volt
4
VBUS
13
RCV
6 10
HDMO PDM
7
HDPO
8
OE_N
2 11
HDP PDP
3
HDM
M<2> M<1> M<0> GND
14 15 16 5
2
AT73C260
11030APMAAC13-Sep-10