SH3301
SH3301 is USB-Adapt SH3301 IC Converts PS/2 Data to USB manufactured by SEMTECH.
SCRIPTION The USB-Adapt™ SH3301 is a single IC that converts PS/2 keyboard and mouse data to USB 1.1. The USB-Adapt™ is ideal for system legacy support, enabling seamless connection of standard PS/2 devices (mice or keyboards) to USB. The IC offers two hot-pluggable and hot-swappable PS/2 ports; either port can accept a mouse or a keyboard. In addition, the USBAdapt™ auto-detects and transparently supports the wheel function of wheel mice. Features
- Interfaces PS/2 devices to USB
- plies with USB 1.1 specification
- Provides two PS/2 ports
- PS/2 ports support mouse wheel functionality
- Works with standard Windows keyboard and mouse drivers APPLICATIONS
- System legacy support PIN ASSIGNMENTS
N/C N/C N/C N/C N/C N/C N/C EPS2DAT1 D+ D3.3V
PRELIMINARY
- Devices are hot-pluggable
- PS/2 ports are auto-selectable and hot-swappable
- a mouse or keyboard can be used in either port
- Easy to implement
- Few external ponents required
44 43 42 41 40 39 38 37 36 35 34 N/C N/C N/C N/C VDD VSS1 XOUT XIN VSS EPS2CLK0 EPS2DAT0 33 32 31 30 29 28 27 26 25 24 23
1 2 3 4 5 6 7 8 9 10 11
SH3301FB QFP
12 13 14 15 16 17 18 19 20 21 22
N/C N/C N/C N/C N/C N/C N/C N/C N/C N/C N/C
Semtech is a registered trademark of Semtech Corporation. USB-Adapt is a trademark of Semtech Corporation. All other trademarks belong to their respective panies. Copyright ©1999-2002 Semtech Corporation SH3301-DS-101
_RESET EPS2EN EPS2CLK1 N/C N/C N/C N/C N/C N/C N/C N/C
.semtech.
ORDERING CODE
Package options 44-pin QFP Other Materials USB-Adapt™ eval. kit Pitch 0.8 mm Type Evaluation kit TA = -20°C to +85°C SH3301FB Order number EVK-SH3301
BLOCK DIAGRAM
System
USB I/O
Keyboard/Mouse PS/2 Handler PS2 Port 1 PS2 Port 2
Copyright ©1999-2002 Semtech Corporation SH3301-DS-101
.semtech....
