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.
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