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As of 2025-08-01

TWELITE R

USB Adapter

1: TWELITE R2

1.1: TWELITE R2 Datasheet

2: TWELITE R3

2.1: TWELITE R3 Datasheet

TWELITE R is an adapter for USB connection. It is used to connect to a PC via USB for advanced application settings and writing applications.

1 - TWELITE R2

Model: MW-LITER2

TWELITE R2 is an adapter that connects TWELITE to a PC via USB. It is used for detailed application settings and writing applications.

1.1 - TWELITE R2 Datasheet

Latest Edition

TWELITE R2 is an adapter for connecting TWELITE DIP and TWELITE PAL via USB. It enables communication with TWELITE DIP/PAL from a computer over USB and is used for application configuration and programming.

Features

Compatible with TWELITE series such as TWELITE DIP and TWELITE PAL
Enables configuration and application rewriting of the TWELITE series on a PC
Can supply power to TWELITE from a mobile battery or USB power source
RoHS compliant, meeting new environmental standards

Precautions

About the DIP Connection Connector

As shown in Figure 1, the spacing between pins on the TWELITE DIP connection connector may vary by up to ±0.7 mm. When connecting TWELITE DIP to TWELITE R2, please bend the TWELITE DIP’s pin header slightly if needed before insertion, or use the dedicated TWELITE R attachment. Repeated insertion and removal of TWELITE DIP may result in poor connectivity.

Using the Attachment

A kit for converting the TWELITE R2’s DIP connector to a ZIF socket is sold separately.

If any of the following conditions apply to your use case, using the TWELITE R attachment is recommended.

When a quick connection to TWELITE DIP is desired
When TWELITE DIP is inserted and removed frequently
When connecting TWELITE PAL to the DIP connector

Components

USB Connector Type: USB Type-C
* The USB connector manufacturer is subject to change without notice.
USB-UART Conversion IC: FTDI FT230XQ

FT230XQ General-Purpose DIO Wiring

The general-purpose DIO wiring of FT230XQ is shown below.

Also, SET, RST, and PRG are connected to the TWELITE DIP connector as shown below. The connections are as follows.

Name on TWELITE R2	Pin Number on TWELITE DIP Connector
SET	15
RST	21
PRG	7

Absolute Maximum Ratings

	Min	Max
Power Supply (VCC)	-0.3	5.5	V

Characteristics

Recommended Operating Conditions

	Symbol	Condition	Min	Typ	Max
Power Supply Voltage	Vcc		4.50	5.00	5.50	V
Operating Temperature	T_OPR	No condensation	-40	25	85	°C

Values are based on the semiconductor datasheet.

DC Characteristics

	Symbol	Typ	Max		Remarks
Current Consumption	I_cc1	8.00		mA	Excludes TWELITE current consumption
TWELITE Supply Voltage	V_to	3.30		V
TWELITE Supply Current	I_to		50	mA

Values are based on the semiconductor datasheet.

Revision History

Version	Revision Date	Revision Details
2.0.0	2023/05/15	Changed to new format
1.0.1	2020/6/1	Added precautions, revised external diagram
1.0.0	2020/3/13	Initial version

2 - TWELITE R3

Model: MW-LITER3

TWELITE R3 is an adapter that connects TWELITE to a PC via USB. It is used for detailed application configuration and programming.

2.1 - TWELITE R3 Datasheet

Latest Edition

TWELITE R3 is an adapter that connects TWELITE models with a 7P interface, such as TWELITE CUE and TWELITE ARIA, to a PC via USB. It enables communication with TWELITE CUE/ARIA over USB and is also used for application configuration and programming.

Features

Compatible with TWELITE series such as TWELITE CUE and TWELITE ARIA
Enables configuration and rewriting of applications for TWELITE series on a PC
Can supply power to TWELITE from a mobile battery or USB power source
Compliant with RoHS, conforming to new environmental standards

Components

USB Connector Type: USB Type-C
The manufacturer of the USB connector used is subject to change without notice.
USB-UART Conversion IC: FTDI FT230XQ

Dimensions

Pin Assignment

The correspondence table of signal pins is as follows.

TWELITE R3 Name	TWELITE Name	TWELITE DIP#	TWELITE SMD#	Description
GND	GND	1, 14	20, 28, 30, 31, 32	Negative side of power supply (one connection is sufficient)
TXD	TXD0 (DIO6)	10	8	Serial communication line (Connect to RX terminal on PC)
PRG	SPIMISO	7	2	Connect to GND for reset, then release or connect to VCC to enter programming mode
RXD	RXD0 (DIO7)	3	9	Serial communication line (Connect to TX terminal on PC)
RST	RESETN	21	21	Connect to GND to reset
VCC	VCC	28	5	Positive side of power supply (avoid collision with board power)
SET	DIO12	15	13	Extended control signal (used for entering interactive mode on TWELITE CUE, etc.)

When Using with TWELITE without a 7P Interface

When using TWELITE without a 7P interface, such as TWELITE DIP BLUE/RED, refer to the diagram below for wiring before use.

FT230XQ General-Purpose DIO Wiring

The general-purpose DIO wiring of FT230XQ is shown below.

Figure 2 General-Purpose DIO Wiring Diagram

Absolute Maximum Ratings

	Min	Max
Power Supply (VCC)	-0.3	5.5	V

Characteristics

Recommended Operating Conditions

	Symbol	Condition	Min	Typ	Max
Power Supply Voltage	Vcc		4.50	5.00	5.50	V
Operating Temperature	T_OPR	No condensation	-40	25	85	°C

Values are based on the semiconductor datasheet.

DC Characteristics

	Symbol	Typ	Max		Remarks
Current Consumption	I_cc1	8.00		mA	Excludes TWELITE current consumption
TWELITE Supply Voltage	V_to	3.30		V
TWELITE Supply Current	I_to		50	mA

Values are based on the semiconductor datasheet.

Revision History

Version	Revision Date	Revision Details
2.0.0	2023/05/15	Changed to new format
1.0.0	2023/1/17	Initial version