TWELITE DIP Wireless Microcontroller Datasheet

Latest Edition

TWELITE DIP BLUE (Certification Model: TWE-001 Lite) / TWELITE DIP RED (Certification Model: TWELITE RED) are TWELITE modules in an easy-to-handle DIP format. They feature an ultra-low power and high-performance microcontroller, flash memory, and a high-performance IEEE802.15.4-compliant wireless transceiver.

By connecting power and sensors and storing programs in flash memory or EEPROM, the module can be operated.

Supports SPI, I2C, and UART, allowing connection to various sensors and microcontrollers.

Certified for use in Japan, making it ready for immediate productization.

Features

Compliant with the globally standardized IEEE802.15.4
Proprietary protocol stack “TWELITE NET” available
2.54mm pitch, 28-pin (600mil) DIP IC form factor
Stable long-distance communication enabled by board design maximizing chip performance
Equipped with 32KB RAM and 160KB/512KB flash memory for high-performance communication applications
Standby current is as low as 0.1μA (RAMOFF sleep), contributing to long battery life
Rich I/O including 4 or 6 AD converters, 1 comparator, and 20 GPIOs enables direct sensor connection
Firmware can be modified thanks to onboard flash memory
Firmware development supported by free GNU-based development environment
Secure communication enabled via powerful 128-bit AES encryption
Certified under Japan’s ARIB STD-T66 (technical compliance), allowing use without licensing or additional applications
RoHS compliant, meeting new environmental standards

Specifications

Product Variations

TWELITE DIP BLUE and TWELITE DIP RED come in the variations listed below. Please select the most suitable one for your application.

Sales codes are subject to change. Please refer to our website for the latest codes.

TWELITE Name	Sales Code	Antenna	Remarks
TWELITE DIP BLUE	TWE-L-DI-W	Matchstick Antenna Type	With Pin Headers
	TWE-L-DP-W		Without Pin Headers
	TWE-L-DI-U	Coaxial Connector Type	With Pin Headers, Antenna Sold Separately
	TWE-L-DP-U		Without Pin Headers, Antenna Sold Separately
TWELITE DIP RED	MW-R-DI-W	Matchstick Antenna Type	With Pin Headers
	MW-R-DI-W		Without Pin Headers
	MW-R-DI-U	Coaxial Connector Type	With Pin Headers, Antenna Sold Separately
	MW-R-DI-U		Without Pin Headers, Antenna Sold Separately

Radio Section

	TWELITE DIP BLUE	TWELITE DIP RED	Remarks
Communication Method	2.4GHz Compliant with IEEE 802.15.4	2.4GHz Compliant with IEEE 802.15.4
Protocol Stack	TWELITE NET and IEEE 802.15.4 MAC	TWELITE NET and IEEE 802.15.4 MAC
Communication Speed	Up to 250kbps	Up to 250kbps
Modulation Method	O-QPSK, DSSS	O-QPSK, DSSS
Number of Channels	16	16	May vary by country
Transmit Power	2.5dBm	9.19dBm	25℃,3V
Receiver Sensitivity	-95dBm	-96dBm	25℃,3V,typ
Transmit Current	15.3mA	23.3mA	25℃,3V,typ At max output
	-	14.0mA	At 3dBm output
Receive Current	17.0mA	14.7mA	25℃,3V,typ

Microcontroller Section

32-bit RISC processor
Variable clock enables optimized power consumption
RAM: 32kBytes
EEPROM: 4kBytes
Flash memory: 160kBytes (TWELITE DIP BLUE), 512kBytes (TWELITE DIP RED)
Watchdog timer, brown-out detection
Fine-grained power control per block (Digital/Analog/RAM/Wireless)
Built-in AES 128-bit encryption circuit and 16-bit random number generator

Interfaces

	Qty	Remarks
ADC	4/6	10bit. 4 ports for TWELITE BLUE, 6 ports for TWELITE RED
PWM	4
Timer/PWM	1	5 modes including PWM, Δ∑. 16MHz, 16-bit precision
Pulse Counter	2	Operates in sleep mode. Up to 100kHz, 16-bit
UART	2	16550A compatible
SPI Master/Slave	1	3 chip selects, up to 16MHz
Comparator	1
2-wire Serial Master/Slave (I2C, SMBUS compatible)	1	Up to 100kHz or 400kHz, 7/10bit address mode
General-purpose Digital	20	Shared with other I/F

Many pins are shared; availability depends on usage combinations.

Certifications and Regulatory

	TWELITE DIP BLUE	TWELITE DIP RED
Certification Model	TWE-001 Lite	TWELITE RED
Technical Conformity Certification Number	007-AB0031	007-AF0062
FCC ID	2AINN-L1	-
IC ID	21544-L1	-
Remarks	RoHS Compliant	RoHS Compliant

*1. When using TWELITE overseas, please check with us early in development due to restrictions on antennas, etc.

*2. Some countries may require labeling of FCC ID or IC ID on TWELITE or products. Contact us if applicable.

Export Notes

The built-in AES 128-bit encryption circuit in TWELITE is subject to export control classification. We will issue a classification document upon request.
Depending on the country, products may not pass customs unless TWELITE has wireless certification. Please inquire for details.

Product Labeling

Product labels, certification numbers, etc., are printed on the device but may change without notice.

Block Diagram

Dimensions

Dimensions	Weight	Remarks
35.56mm x 17.8mm x 3.5mm	2.2g	Excluding antenna, connector, and terminals

Pin Assignment

Pin Number

The tail pads are compatible with the 7P interface of TWELITE R2/R3.

When soldering, be careful not to bridge the 5P through-hole next to the pad.

Pin Assignment

#(*1)	IO Name (*2)	Function Assignment (*3)	Alternate Assignment (*4)					Feature Name in “Extremely Simple! Standard App” (*5)
1	GND							GND
2	DIO14	SIF_CLK		TXD1	TXD0	SPISEL1		SCL
3	DIO7	RXD0			PWM3			RX
4	DIO5	RTS0			PWM1		PC1	PWM1
5	DIO18	SPIMOSI						DO1
6	DO0	SPICLK			PWM2(*6)			PWM2
7	DO1	SPIMISO			PWM3(*6)			PWM3
8	DIO19	SPISEL0						DO2
9	DIO4	CTS0				TIM0OUT	PC0	DO3
10	DIO6	TXD0			PWM2			TX
11	DIO8	TIM0CK_GT		PC1	PWM4			PWM4
12	DIO9	TIM0CAP	32KTALIN		RXD1			DO4
13	DIO10	TIM0OUT	32KTALOUT					M1
14	GND							GND
15	DIO12		PWM2		CTS0			DI1
16	DIO13		PWM3		RTS0			DI2
17	DIO11		PWM1		TXD1			DI3
18	DIO16	COMP1P			SIF_CLK			DI4
19	DIO15	SIF_D		RXD1	RXD0	SPISEL2		SDA
20	DIO17	COMP1M	PWM4		SIF_D			BPS
21	RESETN	RESETN						RST
22	ADC1							AI1
23	DIO0	SPISEL1	ADC3					AI2
24	ADC2	VREF						AI3
25	DIO1	SPISEL2	ADC4	PC0				AI4
26	DIO2	ADC5(*7)				TIM0CK_GT		M2
27	DIO3	ADC6(*7)				TIM0CAP		M3
28	VCC	VCC						VCC

(*1) Pin number. The number and assignment of pins differ from TWELITE (SMD version). Usually, use the IO Name to specify pins.
(*2) Pin definition name. This is used in semiconductor datasheets and TWELITE app development; our technical support also refers to pins by their IO Name.
(*3) Each pin can be used as simple I/O or analog input, but you can assign other functions via API initialization. This table lists typical functions.
(*4) By initializing via API, you can move functions to alternate assignment pins. This table lists typical alternate functions.
(*5) Pin names specific to the “Extremely Simple! Standard App” (App_Twelite). These are similar to IO Names; take care not to confuse them.
(*6) PWM2,3 can be assigned to DO0,1 by releasing the assignment of DIO6,7 or DIO12,13.
(*7) ADC5 and ADC6 are available only on TWELITE RED.

Function Overview

Signal Name	Function
PC	Pulse Counter
SPICLK	SPI Clock
SPISEL	SPI Select Output
SPIMISO	SPI Controller Input (SDI)
SPIMOSI	SPI Controller Output (SDO)
TIM0CK_GT	Timer Clock, Gate Input
TIM0CAP	Timer Capture Input
TIM0OUT	Timer PWM Output
32KTALIN	Crystal Input
32KTALOUT	Crystal Output
VREF	Reference Voltage
COMP1M	Comparator + Input
COMP1P	Comparator - Input
SIF_D	2-wire Serial Data
SIF_CLK	2-wire Serial Clock
RXD	UART RX
TXD	UART TX
RTS	UART RTS
CTS	UART CTS
PWM	Pulse Width Modulation Output

Handling of Special Pins

DO0 (Function: SPICLK)

This pin is used as an output. Applying voltage from external sources (even with some output impedance) has been reported to cause the TWE module to not enter programming mode.
When connecting LEDs or transistors, the pin may enter an intermediate state upon startup or wake from sleep, potentially causing malfunction. We recommend configuring the external circuit so that it is always pulled up to Vcc.

DO1 (Function: SPIMISO)

This pin is often used as an output, but at module power-up or reset, it behaves as an input. If the voltage is judged as Low at that time, the module will start in programming mode. Pay attention to the voltage level at startup on this pin.

DIO0 (Function: ADC3), DIO1 (Function: ADC4)

These pins are shared with analog input. In firmware, the internal pull-up must be disabled when reading AD values .

ADC2

ADC2 can be used as a reference voltage input. Software implementation is required to use this. Note that there is no pin to output the reference voltage.

GND

It is recommended to connect both pins 1 and 14 to GND, but operation is possible with either unconnected. No significant change in wireless performance has been observed if one is left unconnected.

Absolute Maximum Ratings

	Min	Max
Power Supply (VCC)	-0.3	3.6	V
Analog IO (VREF/ADC)	-0.3	VCC+0.3	V
Digital IO	-0.3	VCC+0.3	V

Characteristics

Recommended Operating Conditions

	Symbol	Condition		min	typ	max
Power Supply Voltage	VCC			2.0	3.0	3.6	V
Startup Voltage	Vboot			2.05			V
Operating Temperature	T_OPR	No condensation	TWELITE DIP BLUE	-40	25	105(1) 90(2)	℃
			TWELITE DIP RED	-30	25	90
Operating Humidity	H_OPR	No condensation				85	%RH

Values are based on semiconductor datasheet.
*1 Max operating temperature of TWE-L-WX
*2 Max operating temperature of TWE-L-U

DC Characteristics

	Symbol	Condition		min	typ
Current Consumption	ICC	Sleep (RAMOFF, no timer)	TWELITE DIP BLUE		0.1	uA
			TWELITE DIP RED		0.1	uA
		Sleep (with timer)	TWELITE DIP BLUE		1.5	uA
			TWELITE DIP RED		1.5	uA
		Transmit (CPU doze)	TWELITE DIP BLUE		15.3	mA
			TWELITE DIP RED		23.3	mA
			TWELITE DIP RED (at 3dBm output)		14.0	mA
		Receive (CPU doze)	TWELITE DIP BLUE		17.0	mA
			TWELITE DIP RED		14.7	mA
Transmit Power	Pout		TWELITE DIP BLUE	+0.5	2.5	dBm
			TWELITE DIP RED		9.14	dBm
Receiver Sensitivity			TWELITE DIP BLUE		-95	dBm
			TWELITE DIP RED		-96	dBm

Values are based on semiconductor datasheet.

I/O Characteristics

	Symbol	Condition	min	typ	max
Internal Pull-up on DIO			40	50	60	kΩ
DIO High Input	V_IH		VCCx0.7		VCC	V
DIO Low Input	V_IL		-0.3		VCCx0.27	V
DIO Input Hysteresis			200	310	400	mV
DIO High Output	V_OH	TWELITE DIP BLUE	VCCx0.8		VCC	V
		TWELITE DIP RED	VCC-0.4
DIO Low Output	V_OL		0		0.4	V
DIO Load, Sink Current	I_OL	VCC 2.7～3.6V		4		mA
		VCC 2.2～2.7V		3		mA
		VCC 2.0～2.2V		2.5		mA

Values are based on semiconductor datasheet.

ADC Characteristics

	Symbol	Condition	min	typ	max
Reference Voltage	V_REF		1.198	1.235	1.260	V
ADC Resolution					10	Bits
ADC Integral Nonlinearity				±1.6, ±1.8		LSB
ADC Differential Nonlinearity			-0.5		0.5	LSB
ADC Offset Error		0～V_REF		-10		mV
		0～2V_REF		-20
ADC Gain Error		TWELITE DIP BLUE 0～V_REF		+10		mV
		TWELITE DIP BLUE 0～2V_REF		+20
		TWELITE DIP RED 0～V_REF		-10
		TWELITE DIP RED 0～2V_REF		-20
ADC Clock				0.25,0.5, 1.0		MHz
ADC Input Range			0.04		V_REF2xV_REF	V

Values are based on semiconductor datasheet.

Precautions for Use

Storage

Avoid high temperature and humidity. Use the product within six months of delivery.

General Notes

Please be sure to evaluate and verify the product in your actual usage environment.

For applications requiring high reliability or involving human safety, please consult with your distributor in advance.

Revision History

Version	Revision Date	Revision Details
2.0.1	2024/11/12	Corrected unit mislabeling for current consumption
2.0.0	2024/07/12	Updated due to PCB design change
1.1.1	2024/03/04	Corrected annotation in pin assignment table
1.1.0	2024/02/27	Migrated to new website
1.0.2	2018/11/5	Added explanation for Table 6
1.0.1	2018/3/13	Corrected errors in pin assignment table
1.0.0	2018/2/6	Initial version