KBR38A-USB2 Noritake Company Inc, KBR38A-USB2 Datasheet

KBR38A-USB2

Manufacturer Part Number

KBR38A-USB2

Description

IR RECEIVER USB I/F

Manufacturer

Noritake Company Inc

Datasheet

1.KBR38A-1.pdf (2 pages)

Specifications of KBR38A-USB2

Supply Voltage Range

4.75V To 5.25V

Carrier Frequency

38kHz

External Depth

9mm

External Length / Height

24mm

External Width

18mm

Operating Temperature Range

-40Â°C To +85Â°C

Supply Current

20mA

Termination

RoHS Compliant

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IR Receiver Module

Electrical Parameter

Power Supply Voltage

Power Supply Current

Logic Input (not /RESET)

Logic Output

The /RESET input halts the CPU below 1/3 VDD and initializes above 2/3 VDD.

Environmental Parameter

Operating Temperature

Storage Temperature

Operating Humidity

OUTPUT MODES - Press CTRL then ALT then SHIFT then Key

Asynchronous serial 9600 baud – idle high – CMOS

Asynchronous serial 19200 baud – idle high – CMOS

Asynchronous serial 38400 baud – idle high – CMOS

Asynchronous serial 9600 baud – idle low – pseudo RS232

Asynchronous serial 19200 baud – idle low – pseudo RS232

Asynchronous serial 38400 baud – idle low – pseudo RS232

SPI synchronous slave clk input with data clocked on rising edge

SPI synchronous slave clk input with data clocked on falling edge

I2C with address 71H

Asynchronous serial 9600 baud – differential – RS485

Asynchronous serial 19200 baud – differential – RS485

Asynchronous serial 38400 baud – differential – RS485

SPI synchronous master clk output with data clocked on rising edge

SPI synchronous master clk output with data clocked on falling edge

3 Port Toggle – After power ON or /Reset ports are set to low output

Enable host busy handshaking or set /SS in SPI master

Disable host busy handshaking or set /STRB in SPI master (default)

DECODE OPTIONS - Press CTRL then ALT then SHIFT then Key

No decoding – outputs Raw RC5 command (00h – 38h)

No decoding – outputs Raw RC5 system (00h – 1Fh)

KBC56A keyboard ASCII decoding (default)

KBC56A offset RAW code SHIFT=+40h, ALT=+80h, CTRL=+C0h

CTRL, ALT and SHIFT are pressed before a single alternate character. CTRL then ALT

or CTRL then SHIFT enable ALT or SHIFT Lock which is cancelled using CTRL. When

lock is on, ALT or SHIFT can be used to input a related alternate character. A 16 byte

buffer allows the host system to poll the receiver every 2 seconds or to use the IRQ

generated by a key press when using I2C or hardware controlled asynchronous modes.

When the buffer is empty the data read is FFH in slave SPI or I2C modes and this can be

modified using SIN after the first byte in slave SPI mode. Data bytes are 8 bits with

asynchronous data adding 1 stop bit and no parity bit.

In Master SPI mode the /SS is low during data out

and /STRB is toggled low for 1us after data is

clocked out. The KBR38A-2 slave I2C interface

comprises a start condition, fixed address 71H, 8

bit data and stop condition.

Please see the KBR38A application notes on

page 2 for timing and circuit ideas.

*The RS232 interface operates between 0V and 5V. Do not connect pins 2, 4 and 6 to RS232 signals which exceed these values.

KBC56A, KBR38A and website content at

default mode for KBC38A-1.

18.0

NORITAKE ITRON IR CONTROLLERS

6.0

Pin pitch 2.54mm, dia 0.8mm

18.0

LED

Symbol

DD (typ)

IL /

default mode for KBC38A-2.

9.0

Max

/ V

www.KBC56A.com

SPI Master/Slave / I2C <1MHz clock

Async CMOS / RS232 / RS485

9600, 19200 and 38400 baud.

Single 5V supply at 13mA

LED shows Caps Lock & key press

User setup stored in EEPROM

ASCII / Raw data output modes.

The KBC38A-1 has SPI, Async CMOS,

RS232, RS485 and Port toggle interfaces.

The KBC38A-2 has SPI, I2C and Port

toggle interfaces. Use the KBC56A

keyboard to set up the operating mode of

the KBR38A or send the equivalent RC5

Raw data codes.

Value

5.0VDC +/- 5%

13mA + LED 2mA

0.8VDC max / 2.0VDC min

0.5VDC max / 2.4VDC min

Value

-40 C to +85 C

20 to 85% RH @ 25 C non condensing

HostBsy /HostBsy

/RESET /RESET /RESET

Async

TOUT

VDD

/IRQ

RS232*

IRQ

VDD

TXD

KBRVer

1 & 2

Condition

RS485

=-2mA

=0V

=5VDC

VDD

IRQ

-B

www.KBC56A.com

Key

KBR38A-1 / KBR38A-2

SPI Slave SPI Master

/RESET

CLK IN

SOUT

VDD

SIN

Key

ESC

TAB

INS

DEL

▲PUp

◄HME

►END

▼PDn

(

)

‘

Space 20

Ctrl

Alt

Shift

Enter

;

€

“

[

]

/SS-/STRB

Std

CLK OUT

/RESET

See application page 2 for specific

DOUT

functionality when these keys are

Data Decode Table (Hex)

VDD

Shift

Doc:32365 v2 11 July 2008

TogON TogOFF

Key H

Key G

pressed.

Key

Lock

/RESET

VDD

ALT

Hex

Key Q

Key O

Key P

Page 1

CTRL Raw

/RESET

VDD

SCL

/IRQ

SDA

I2C

Related parts for KBR38A-USB2

KBR38A-USB2 Summary of contents

Page 1

... In Master SPI mode the /SS is low during data out and /STRB is toggled low for 1us after data is clocked out. The KBR38A-2 slave I2C interface comprises a start condition, fixed address 71H, 8 bit data and stop condition. ...

Page 2

... Then the fixed address of 71h is sent with R/W set high. The KBR38A-2 then responds with an ACK/NACK bit. The host must then issue 8 further clocks to clock data out. The host must then send an ACK on the 9 a stop condition is sent ...

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