SH3301

SH3301 SEMTECH | Alldatasheet

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USB-Adapt™ SH3301 IC Converts PS/2 Data to USB Semtech is a registered trademark of Semtech Corporation. USB-Adapt is a trademark of Semtech Corporation. All other trademarks belong to their respective companies. Copyright ©1999-2002 Semtech Corporation SH3301-DS-101 www.semtech.com1 HID & SYSTEM MANAGEMENT PRODUCTS, SYSTEM MANAGEMENT FAMILY DESCRIPTION FEATURES

• System legacy support 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 USB- Adapt™ auto-detects and transparently supports the wheel function of wheel mice.  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 components required  Interfaces PS/2 devices to USB  Complies 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 N/C N/C N/C N/C VDD VSS1 XOUT XIN VSS EPS2CLK0 EPS2DAT0 N/C N/C N/C N/C N/C N/C N/C N/C N/C N/C N/C _RESET EPS2EN EPS2CLK1 N/C N/C N/C N/C N/C N/C N/C N/C SH3301FB QFP N/C N/C N/C N/C N/C N/C N/C EPS2DAT1 3.3V

APPLICATIONS

0.8 mm TA = -20°C to +85°C SH3301FB Other Materials Type Order number USB-Adapt™ eval. kit Evaluation kit EVK-SH3301 BLOCK DIAGRAM ORDERING CODE Copyright ©1999-2002 Semtech Corporation SH3301-DS-101 www.semtech.com2 USB I/O System Keyboard/Mouse PS/2 Handler PS2 Port 1 PS2 Port 2

USB FUNCTIONALITY PIN DEFINITIONS Copyright ©1999-2002 Semtech Corporation SH3301-DS-101 www.semtech.com3 The USB-Adapt™ is a low-speed composite USB 1.1 device that interfaces PS/2. It supports the USB Human Interface Devices (HID) class specification. It uses two interrupt endpoints for the PS/2 devices. The USB-Adapt™ handles the merging of all this data, and sends the data to the host system. Mnemonic QFP Type Name and Function Power Supply VDD 5 PWR Positive supply voltage VSS 9 PWR Ground: negative supply voltage VSS1 6 PWR Ground: negative supply voltage Reset _RESET 12 I Controller hardware reset pin: Active-low reset line Oscillator pins XIN 8 I Oscillator input: input signal from oscillator XOUT 7 O Oscillator output: output signal to oscillator USB 3.3V 34 O USB reference voltage D+ 36 I/O USB D+ line D- 35 I/O USB D- line PS/2 EPS2CLK0 10 I/O Clock line for external PS/2 port 0 EPS2DAT0 11 I/O Data line for external PS/2 port 0 EPS2CLK1 14 I/O Clock line for external PS/2 port 1 EPS2DAT1 37 I/O Data line for external PS/2 port 1 EPS2EN 13 O Enable external PS/2 ports Not connected 1-4, Not used 15-33, 38-44 PS/2 PORTS The two PS/2 ports allow the user to connect legacy PS/2 devices to the USB host system. Standard 104-key keyboards and PS/2 mice, with support for MouseWheel functionality, can be hot-plugged at either of the PS/2 ports and immediately begin communicating with the host.

Copyright ©1999-2002 Semtech Corporation SH3301-DS-101 www.semtech.com4 SUGGESTED INTERFACING FOR THE USB-ADAPT™ 0.1µF GND GND GND GND GND GND GND GND PS21Data PS2 1Clock PS20Data PS2 0Clock Vdd Vdd GND GND GND Vdd GND GND USB External PS/2 SEMTECH Shield Y1 Panasonic EFO-S6004E5 or DigiKey # PX600STR-ND External PS/2 Shield NDS3 56 R6 10KΩ 3.3V 12µH R4 10KΩ SH3301FB N/C 1 N/C 2 N/C 3 N/C 4 N/C 44N/C 43N/C 42N/C 41 VDD5 VSS1 6 Xout 7 Xin 8 VSS 9 EPS2CLK010 EPS2DAT011 EPS2EN13 EPS2CLK114 RESET12 N/C 15N/C 16N/C 17N/C 18N/C 19N/C 20N/C 21N/C 22N/C 23N/C 24N/C 25N/C 26N/C 27N/C 28N/C 29N/C 30 N/C 31N/C N/C 33 3.3V 34D - 35D + 36 EPS2DAT137 3 4 JP1 MDIN6 _SH RESET JP2 MDIN 6_SH R5 10KΩ 12µH STF202-30 Vbus 1 D1in 2 D2in 3D2out4 D1out5 Vss6 0.1µF 6.00MHz 47pF 47pF 10KΩ 47pF 47pF 10µF N/C N/C N/C Microchip TC54VC4002ECB713 or TC54VC4302EMB713

Copyright ©1999-2002 Semtech Corporation SH3301-DS-101 www.semtech.com5 MECHANICAL INFORMATION FOR THE SH3301FB PACKAGE 13.20 ± 0.30 10.00 ± 0.2 #44 13.20 ± 0.30 10.00 ± 0.2 0.80 0.80 ± 0.20 0.15+ 0.1 – 0.05

0.1 MAX

0.0 MIN

2.05 ± 0.1

2.30 MAX

0~8° 0.35 + 0.10 - 0.051.00

Copyright ©1999-2002 Semtech Corporation SH3301-DS-101 www.semtech.com6 ELECTRICAL SPECIFICATIONS Absolute Maximum Ratings Ratings Symbol Value Unit Supply voltage V DD -0.3 to 6.5 V Input and output voltage V IN, VOUT -0.3 to VDD +0.3 V Current Drain per Pin I 20 mA (not including VSS or VDD) Operating Temperature T A T low to T high SH3301 -40 to +85 °C Storage Temperature Range T STG -65 to +150 °C ESD rating (human body model) V ESD 2.0 KV Characteristic Symbol Min Typ Max Unit Supply voltage V DD 4.0 5.0 5.25 V Input high voltage high V IH 0.8 X VDD VDD V low V IL VSS 0.2 x VDD V Output voltage (except D-, D+) high (IOH=-200µa) V OH VDD–1.0 V low (IOL=1ma) V OL 0.4 Output low current (VOL=3V, only pins38, 39, 67) I OL 81 5 2 3 m A Input leakage current high (all inputs except XIN, XOUT, RESET, D+, D-) I LIH13 µA high (XIN, XOUT, RESET) I LIH22 0 µA low (all inputs except XIN, XOUT, RESET, D+, D-) I LIL1- 3 µA low (XIN, XOUT, RESET) I LIL2 -20 µA Output leakage current (all I/O pins and output pins except D+, D-) high I LOH13 µA low I LOL -3 µA Supply current Normal operation mode I DD1 5.5 12 mA Idle mode I DD2 2.2 5 mA Stop mode I DD3 180 300 µA Control Timing (TA = -40°C to +85°C, VDD = 4.0 V to 5.25V) Characteristic Symbol Min Typ Max Unit Frequency of Operation Crystal Option f OSC 6.0 MHz External Clock Option fosc 6.0 MHz

Copyright ©1999-2002 Semtech Corporation SH3301-DS-101 www.semtech.com7 This Page Left Intentionally Blank

Copyright ©1999-2002 Semtech Corporation SH3301-DS-101 www.semtech.com8 For sales information and product literature, contact: Semtech Corporation Human Interface Device (HID) and System Management Division

200 Flynn Road

Camarillo, CA 93012-8790 sales@semtech.com http://www.semtech.com/ (805)498-2111 Telephone (805)498-3804 Fax Copyright ©1999-2002 Semtech Corporation. All rights reserved. USB-Adapt is a trademark of Semtech Corporation. Semtech is a registered trademark of Semtech Corporation. All other trademarks belong to their respective companies. INTELLECTUAL PROPERTY DISCLAIMER This specification is provided "as is" with no warranties whatsoever including any warranty of merchantability, fitness for any particular purpose, or any warranty otherwise arising out of any proposal, specification or sample. A license is hereby granted to reproduce and distribute this specification for internal use only . No other license, expressed or implied to any other intellectual property rights is granted or intended hereby. Authors of this specification disclaim any liability, including liability for infringement of proprietary rights, relating to the implementation of information in this specification. Authors of this specification also do not warrant or represent that such implementation(s) will not infringe such rights.