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Code Mercenaries

1. Features

• USB low speed interface

• Full USB V1.1/2.0 compliance

• Full USB HID 1.1 compliance

• Direct data input for use with microcontrollers

or simple circuits

• Supports all HID keyboard usage codes

• Modifier keys via direct control lines

• Single +5V power supply

• Low power consumption: 20mA max.

• Available as DIL24, SOIC24, and module

2. Functional Overview

KeyWarrior24D is intended for applications where

computer keyboard input has to be generated from

some kind of external data source.

Keystrokes are generated by applying the key code

and modifier key status to the KeyWarrior24D

input lines and then generating a strobe signal.

KeyWarrior24D will send the data as keyboard

input data to the host computer and issue an

acknowledge signal to indicate its readyness for

another code.

3. Pin Configuration

KeyWarrior24D-P DIL24

KeyWarrior24D-S SOIC24

TOP VIEW!

12 13

V 1.0.0, December 2nd 2013, for chip revision 1.1.1.D and up

Summary of content (8 pages)

PAGE 1
KeyWarrior24D USB Keyboard Controller with direct data input Code Mercenaries 1. Features • USB low speed interface • Full USB V1.1/2.0 compliance • Full USB HID 1.1 compliance • Direct data input for use with microcontrollers or simple circuits • Supports all HID keyboard usage codes • Modifier keys via direct control lines • Single +5V power supply • Low power consumption: 20mA max. • Available as DIL24, SOIC24, and module 2.
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Code Mercenaries KeyWarrior24D 4. Pin Descriptions KeyWarrior24D Name I/O Type Pins Description D+, DD0, D1, D2, D3, D4, D5, D6, D7 I/O I special inputs with internal pull up resistor 16, 15 1, 2, 3, 4, 24, 23, 22, 21 USB differential data lines Data input lines for the key code (HID usage code) /L-ALT, /L-GUI, /R-Ctrl, /R-Shft, /R-ALT, /R-GUI /STRB I inputs with internal pull up resistor 6, 19, 7, 18, 8, 17 Input lines for the modifier keys.
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KeyWarrior24D 5. Device Operation KeyWarrior24D registers as a standard HID keyboard and supports boot protocol. It does not need any special drivers to be installed, standard system drivers are sufficient. The country code is 0 for not localized hardware, which allows to use a single version of the chip for all international keyboard layouts.
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Code Mercenaries KeyWarrior24D Parameter Vcc Icc Isb Iol Iol Rup Vith VH Voh Vol Vdi Vcm Vse Cin Iio Rpu Rpd Operating Voltage Operating Supply Current Suspend mode current Max sink current on output pins Sink current on output pins Pull-up Resistance Input threshold voltage Input hysteresis voltage USB Interface Static output high Static output low Differential Input sensitivity Differential Input common Mode Range Single Ended Transceiver Threshold Transceiver capacitance Hi-Z State Data Line Leakage Bu
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KeyWarrior24D Code Mercenaries 7. Ordering Information Partname KeyWarrior24D KeyWarrior24D KeyWarrior24D Order Code KW24D-P KW24D-S KW24D-MOD Description Digital input keyboard controller Digital input keyboard controller Digital input keyboard controller, ready to use module 7.1 Shipping info DIL24 chips come in tubes of 16 each. SOIC24 chips come in tubes of 31 each. To assure the safest handling we recommed that you order in multiples of full tubes.
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Code Mercenaries KeyWarrior24D 8. 8 External External circuit circuit for for KeyWarrior24D KeyWarrior24D 13 C1 Vcc NC KW24D 100nF 12 11 1 +5V 2 D3 D+ 4 GND R1 1K3 HOLD VREG 15 16 DD+ Vpp V 1.0.0, 0.0.1, December October 8th2nd 2013, 2013, forfor chip chip revision revision 1.1.1.D 1.1.1.
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KeyWarrior24D Code Mercenaries 9. Package Dimensions 24 Pin DIL 24 Pin SOIC V 1.0.0, December 2nd 2013, for chip revision 1.1.1.
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KeyWarrior24D 10. ESD Considerations KeyWarrior has an internal ESD protection to withstand discharges of more than 2000V without permanent damage. However ESD may disrupt normal operation of the chip and cause it to exhibit erratic behaviour. For the typical office environment the 2000V protection is normally sufficient. Though for industrial use additional measures may be necessary. When adding ESD protection to the signals special care must be taken on the USB signal lines.