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Peripheral

Analog to Digital Converter

I/O Expander

MFID & RF Family

2.4G RF

Serial ROM Family

Analog to Digital Converter

Our 8-bit A/D converters are using synchronous 3-wire serial interface with guaranteed 8-bit resolution. Each channel can be independently programmed to an analog input mode and supports A/D conversion rates up to 50KHz. Used in applications that require fewer external components.

W55ADxxx 8-ch, 8-bit A/D Converter
Part No. A/D Channel Convert Rate Resolution (bit) Voltage (volt) µC Interface Status* RoHS Datasheet
8 50KHz 8 2.7 - 5.5 3 wires P Y
* Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

I/O Expander

The W55P241 is a general purpose programmable I/O device usable with many different microprocessors through SPI interface. This contains three 8-bit ports, total 24 I/O pins which may be individually programmed for 4 separate command groups. These I/O pins can drive LED directly with high-current applications. A dedicated counter is in charge of 256-level output functions.

W55P241 SPI Interface, 3-bit Ports I/O Expander
Part No. SPI Interface I/O Wake Up H/W PWM Internal OSC Status* RoHS Datasheet
W55P241
Y 24 I/O Y 8-pin 8MHz P Y Request
*  Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

MFID & RF Family

In recent years, contactless identification devices have been increasingly used in the toy market. MFID (Magnetic Field Identification) is used in all areas of automatic data capture allowing contactless identification of objects using magnetic coupling.

W55MIDxx 13.56MHz MFID
Part No. Category Frequency(MHz) ID Type ID length(bit) Anti-collision TX power µC Interface Status* RoHS Datasheet
Single-tag 13.56 Bonding-ID 10 - - - P Y
R/W-tag 13.56 Programmable-ID 64 6 - 8 tags - - P Y
Multi-tag 13.56 Bonding-ID 10 6 - 8 tags - - P Y
Reader 13.56 - - - 4-level Serial/Parallel P Y
*  Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

W55RFS27xxx 27/35/40/49MHz Super-Regeneration RF-module

Part No. Category Channel Share Sensitivity / TX Power Baseband Function Status* RoHS Datasheet
Receiver - -90dBm 6-function decoder P Y
Transmitter - +10dBm 6-function encoder P Y
Receiver 3 -90dBm 6-function decoder P Y
Transmitter 3 +10dBm 6-function encoder P Y
*  Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

2.4G RF

The N55RF2400M is a 2.4G RF module integrated CMOS radio frequency (RF) transceiver block with internal 64 byte buffered framer. In normal applications, the N55RF2400M is connected to a microcontroller (μC) as a role of data transceiver and/or receiver.

Part No. Range Over-the-air Symbol Rate Frequency Band Current Consumption Voltage(volt) Module Size Status* RoHS Datasheet
TX RX
N55RF2400M
10M 1Mbps 2400~2482MHz 27mA 22mA 2.2~3.7 22mm x 28mm P Y Request
N55RF2400M1
10M 1Mbps 2400~2482MHz 25mA 21mA 2.2~3.7 14.52mm x 19.57mm P Y Request
*  Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

Serial ROM Family

Serial ROM Family W55F, W551C and W55S are designated to interface with Nuvoton PowerSpeech, BandDirector, and ViewTalk family to increase the speech or HQ-melody duration.

W55Fxxx Serial Flash Memory
Part No. ROM Size (bit) Cascade Mode Erase Mode Voltage - read (volt) Voltage - write (volt) Status* RoHS Datasheet
128K - 4K/16K/All 2.4 - 5.5 5 - 5.5 P Y
512K - 4K/16K/All 2.4 - 5.5 5 - 5.5 P Y
1M Y 4K/16K/All 2.4 - 5.5 5 - 5.5 P Y
1M - 4K/16K/All 2.4 - 5.5 5 - 5.5 P Y
2M Y 4K/16K/All 2.4 - 5.5 5 - 5.5 P Y
*  Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

W551Cxxx Serial Mask ROM
Part No. ROM Size (bit) Cascade Mode Voltage (volt) Serial Interface (SIM) Status* RoHS Datasheet
256K Y 2.4 - 5.5 Y P Y
512K Y 2.4 - 5.5 Y P Y
1M Y 2.4 - 5.5 Y P Y
2M Y 2.4 - 5.5 Y P Y
4M Y 2.4 - 5.5 Y P Y
6M Y 2.4 - 5.5 Y P Y
8M Y 2.4 - 5.5 Y P Y
16M Y 2.4 - 5.5 Y P Y
32M Y 2.4 - 5.5 Y P Y
*  Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

N55Sxxx Mask ROM with SPI interface
Part No. Memory Size (bit) AccessTime Cascade Mode SPI Interface Voltage (volt) Status* RoHS Datasheet
N55S016
16Mb 20ns Y Y 3.0 - 3.6 P Y
N55S032
32Mb 20ns Y Y 3.0 - 3.6 P Y
N55S064
64Mb 20ns Y Y 3.0 - 3.6 P Y
N55S128
128Mb 20ns Y Y 3.0 - 3.6 P Y
*  Status: P= Mass Production, S=Samples, UD=Under Development, UD (Time)= Under Development(Ready Time), EOL=End of life.

Contact us:  MicroC-PS@nuvoton.com