SH2165 PixiKey’ data sheet

Semtech, the Semtech logo, PixiKey, PixiPoint,
and KeyCoder are marks of Semtech Corporation.
Windows is a mark of Microsoft Corporation. I2C
is a mark of Philips Semiconductors Corporation.
PS/2 is a mark of IBM Corporation. All other
marks belong to their respective owners.

www.semtech.com

SH2165 PixiKeyTM

Programmable Keyboard Encoder

& Force Stick Encoder

HID & SYSTEM MANAGEMENT PRODUCTS, KEYCODER® FAMILY

DESCRIPTION

FEATURES

· Industrial keyboards
· Point-of-sale (POS) terminals
· Notebook PCs

· Portable devices
· Accessories
· Embedded keyboards

The SH2165 PixiKeyTM is a cost-
effective, high-functionality
combination keyboard and mouse
encoder which offers a
programmable keyboard matrix and
a PixiPoint® strain gauge sensor
interface. It is a USB 2.0 full-speed
device. The SH2165 is ideal for
industrial applications.

The SH2165 scans and encodes
an 8-row by 18-column keyboard
matrix. The encoder retrieves
matrix information from built-in
ROM or a separate serial
EEPROM. Semtech provides
Windows® applications to create
the binary matrix file, and to upload
the matrix to the EEPROM.

The SH2165 PixiKey interfaces
various strain gauge pointing
device sensors.

Typically consuming about 10 mA,
the SH2165 PixiKey is ideal for
battery-operated systems. The IC
supports USB "Selective Suspend"
that allows host system to enter
power saving mode.

· Provides direct drive for four LEDs

(caps lock, numeric lock, scroll
lock, katakana)

· Advanced motion control algorithm

provides accurate cursor control

· Provides built-in profiles to

interface popular force-stick
sensors from several
manufacturers

· 3.0 V 3.6 V operation over

extended temperature range

· Low power consumption: 10 mA

(typical)

· 64-pin LQFP package

· USB 2.0 full-speed HID keyboard

and mouse combo device

· Works with standard Windows

keyboard and mouse drivers

· Bootable USB keyboard device
· Bootable USB mouse device
· Programmable 8 x 18 keyboard

matrix

· Multimedia key support
· Windows applications provided to

design and load keyboard matrix

· Up to 22 custom / macro keys

APPLICATIONS

PIN ASSIGNMENTS

ROW6
ROW7

BKLTON

BKLT50

COL13
COL14
COL15

SELA
SELB

SELC

COL16
COL17

DRVM

DRVP

XYNOTZ

CLAMP

COL03
COL02
COL01
COL00
SDA
SCL
D-
D+
TrON
USBVref
DVcc
PVcc
PVss
NUMLED
CAPSLED
SCRLLED

CCLAMP

DAP

DAN

RDRV

ZSENS

CNVss

_RESET

VccE

Vref

Vss

Xin

Xout

Vcc

Vss2

KANALED

ROW5

ROW4

ROW3

ROW2

ROW1

ROW0

COL12

COL11

COL10

COL09

COL08

COL07

COL06

FNMOD

COL05

COL04

SH2165-FGT

SH2165

ORDERING CODE

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Package Options

Pitch

= -20° C to +85° C

64-pin LQFP

0.5mm

SH2165-FGT
Lead free, fully RoHS and
WEEE compliant

Evaluation kit

SH2165-EVK

Backlight

Control

Power On Reset

16 Bit Timer

Oscillator Circuit

Keyboard Interface

Keyboard Matrix

LED Interface

I2C Interface to

EEPROM

USB 2.0 Full Speed

Interface

PixiPoint Interface

X, Y, Z, Switch

Input

Control

Columns

Rows

LED drive lines

Drive Pins

AD Input

Select Pins

XIN

XOUT

D-

D+

TrOn

USBVref

_RESET

SCL

SDA

BKLTON

BKLT50

BLOCK DIAGRAM FOR THE SH2165 PIXIKEY

SH2165

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DESCRIPTION

PIN DESCRIPTIONS

The SH2165 consists functionally
of several major sections (see the
block diagram on the previous
page). These include the PixiPoint
interface, the keyboard interface,
the 16-bit timer, the oscillator
circuit, the USB 2.0 full-speed
communication port, and the I2C®
EEPROM communication port. All
sections communicate with each
other and operate concurrently.

The SH2165 has a built-in
oscillator circuit intended to work
with an external 6.00 MHz crystal
or ceramic resonator with built-in
load capacitors.

OSCILLATOR

If an EEPROM is used, it must be
an industry standard 32-Kbit or
larger EEPROM, such as a
24LC32; the I2C serial data and
serial clock pins must be connected
to it.

EEPROM SERIAL INTERFACE

Mnemonic

Type

Name and Function

Power

Vcc

Power supply: 3.0 V 3.6 V

VccE

Connect to Vcc

DVcc, PVcc

22, 21

Vref

Reference voltage; connect to Vcc

Vss

Ground

CNVss, Vss2

7, 11

Connect to Vss

PVss

Vref

Reference voltage; connect to Vcc

Reset

_RESET

Reset

Oscillator

Xin

Oscillator Input

Xout

Oscillator Output

USB

D-

I/O

USB D- line

D+

I/O

USB D+ line

TrON

USB reference voltage output

USBVref

USB reference voltage input; connect to Vcc

Keyboard

CAPSLED

I/O

Caps lock LED: direct drive pin

KANALED

I/O

Katakana LED/emergency LED: direct drive pin

NUMLED

I/O

Num lock LED: direct drive pin

SCRLLED

I/O

Scroll lock LED: direct drive pin

COL00-05

29-34

I/O

Columns for scan matrix

COL06-12

36-42

I/O

Columns for scan matrix

COL13-15

53-55

I/O

Columns for scan matrix

COL16-17

59-60

I/O

Columns for scan matrix

ROW0-7

43-50

I/O

Row lines for scan matrix

FNMOD

I/O

Function operation mode: simple mode: tie to ground;
sticky mode: leave floating

BKLT50

I/O

Backlight control (leave floating if no backlight used)

BKLTON

I/O

Backlight control (leave floating if no backlight used)

Pointer

SELA

I/O

PixiPoint mux select A

SELB

I/O

PixiPoint mux select B

SELC

I/O

PixiPoint mux select C

I/O

Analog to digital converter pin

CCLAMP

I/O

Sample capacitor minus drive

CLAMP

I/O

Sample capacitor plus drive

DAN

I/O

Reference resistor minus drive

DAP

I/O

Reference resistor plus drive

RDRV

I/O

Integration drive

DRVM

I/O

Positive drive

DRVP

I/O

Negative drive

XYNOTZ

I/O

High: XY drive; low: Z drive

ZSENS

Z sensitivity setting

I2C

SCL

I/O

I2C serial clock to and from matrix EEPROM

SDA

I/O

I2C serial data to and from matrix EEPROM

Note:

An underscore before a pin mnemonic denotes an active low signal.

Pin Types Legend:

I=Input; O=Output; I/O=Input or Output; P=Power

SH2165

USB POWER MANAGEMENT

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The SH2165 supports the USB suspend command and remote wake-up
feature. In suspend state, the SH2165 still runs normally, consuming about
5 mA, because the PixiPoint sampling circuit must run continuously. This
does not comply with the USB specification, which requires power
consumption under 500 µA when suspended. But the host system can still
put the USB hub and other related circuits into low power consumption
mode. When the SH2165 gets any keyboard report or PixiPoint report, it
wakes up the host.

Windows® XP supports "selective suspend", which works very well with
SH2165. But Windows XP does not normally turn on "selective suspend"
for a composite device like the SH2165. Semtech provides a driver
initialization file (smtchid.inf) to enable "selective suspend" for the SH2165
under Windows XP. To enable "selective suspend" for the SH2165 under
Windows XP, take the following steps:

1. Connect the SH2165 to the host system.

2. Go to Windows Control Panel > System > Hardware Manager

3. Under Human Interface Devices, you see two USB Human Interface

Devices, one for the SH2165 keyboard and one for the SH2165 mouse
(force stick). Follow step 4 for each item.

4. Right-click the item, choose update the driver manually and choose

"have disk." Then select the smychid.inf file.

Note:

Semtech does not and need not provide drivers. Semtech provides

this driver initialization file so that the selective suspend feature is
supported for the SH2165, using the existing Microsoft mouse and
keyboard drivers.

SH2165

SMTCHID.INF LISTING

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;

; smtchid.inf

;

[Version]

Signature="$WINDOWS NT$"

Class=HIDClass

ClassGuid={745a17a0-74d3-11d0-b6fe-00a0c90f57da}

Provider=%SMTC%

CatalogFile=smtchid.cat

DriverVer=05/07/2003,1.0.0.0

;[SourceDisksNames]

;1=%DiskDescription%,"",,

;[SourceDisksFiles]

; No files are installed by this INF

[Manufacturer]

%SMTC%=SMTC_HID

[SMTC_HID]

;

%USB\VID_047A&PID_0004.DeviceDesc%=SMTC_HID_Inst ,, USB\VID_047A&PID_0001

%USB\VID_047A&PID_1101&MI_00.DeviceDesc%=SMTC_HID_Inst,, USB\VID_047A&PID_1101&MI_00

%USB\VID_047A&PID_1101&MI_01.DeviceDesc%=SMTC_HID_Inst,, USB\VID_047A&PID_1101&MI_01

%USB\VID_047A&PID_1102&MI_00.DeviceDesc%=SMTC_HID_Inst,, USB\VID_047A&PID_1102&MI_00

%USB\VID_047A&PID_1102&MI_01.DeviceDesc%=SMTC_HID_Inst,, USB\VID_047A&PID_1102&MI_01

%USB\VID_047A&PID_3301&MI_00.DeviceDesc%=SMTC_HID_Inst,, USB\VID_047A&PID_3301&MI_00

%USB\VID_047A&PID_3301&MI_01.DeviceDesc%=SMTC_HID_Inst,, USB\VID_047A&PID_3301&MI_01

%USB\VID_047A&PID_2165&MI_00.DeviceDesc%=SMTC_HID_Inst,, USB\VID_047A&PID_2165&MI_00

%USB\VID_047A&PID_2165&MI_01.DeviceDesc%=SMTC_HID_Inst,, USB\VID_047A&PID_2165&MI_01

[SMTC_HID_Inst.NT]

Include=input.inf

Needs = HID_SelSus_Inst.NT

[SMTC_HID_Inst.NT.HW]

Include=input.inf

Needs = HID_SelSus_Inst.NT.HW

AddReg = SMTC_HID_Inst.AddReg.NT.HW

[SMTC_HID_Inst.AddReg.NT.HW]

HKR,,"SelectiveSuspendOn",0x00000001,0x1

[SMTC_HID_Inst.NT.Services]

Include=input.inf

Needs = HID_SelSus_Inst.NT.Services

;

;Strings

;

[Strings]

SMTC = "Semtech"

DiskDescription = "Semtech USB devices"

USB\VID_047A&PID_0004.DeviceDesc = "Semtech USB ScreenCoder"

USB\VID_047A&PID_1101&MI_00.DeviceDesc = "Semtech USB Keyboard"

USB\VID_047A&PID_1101&MI_01.DeviceDesc = "Semtech USB Pointing Device"

USB\VID_047A&PID_1102&MI_00.DeviceDesc = "Semtech USB Keyboard"

USB\VID_047A&PID_1102&MI_01.DeviceDesc = "Semtech USB Pointing Device"

USB\VID_047A&PID_3301&MI_00.DeviceDesc = "Semtech USB Keyboard"

USB\VID_047A&PID_3301&MI_01.DeviceDesc = "Semtech USB Pointing Device"

USB\VID_047A&PID_2165&MI_00.DeviceDesc = "Semtech USB Keyboard"

USB\VID_047A&PID_2165&MI_01.DeviceDesc = "Semtech USB Pointing Device"

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: SH2165

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