N25Q128A13BSF40F NUMONYX, N25Q128A13BSF40F Datasheet - Page 31

• Manufacturer Part Number: N25Q128A13BSF40F
• Description: IC SRL FLASH 128MB NMX 16-SOIC
• Manufacturer: NUMONYX
• Series: Forté™r

Specifications of N25Q128A13BSF40F

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 128M (16M x 8)
• Speed: 108MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

N25Q128 - 3 V
6
Volatile and Non Volatile Registers
The device features many different registers to store, in volatile or non volatile mode, many
parameters and operating configurations:
The Non Volatile Configuration Register (NVCR) affects the memory configuration starting
from the successive power-on. It can be used to make the memory start in a determined
condition.
The VCR and VECR affect the memory configuration after every execution of the related
Write Volatile configuration Register (WRVCR) and Write Enhanced Volatile Configuration
register (WRVECR) instructions. These instructions overwrite the memory configuration set
at POR by NVCR.
As shown in the figure immediately below, the working condition of the memory is set by an
internal configuration register, which is not accessible by the user. The working parameters
of the internal configuration register are loaded from the NVCR during the boot phase of the
device. In this sense the NVCR can be seen as having the default settings of the memory.
During the normal life of the application, every time a write volatile or enhanced volatile
configuration register instruction is performed, the new configuration parameters set in the
volatile registers are also copied in the internal configuration register, thus instantly affecting
the memory behavior. Please note that on the next power on the memory will start again in
the working protocol set by the Non Volatile Register parameters.
Legacy SPI Status Register
3 configuration registers:
–
–
–
Non Volatile Configuration Register (NVCR), 16 bits
Volatile Configuration Register (VCR), 8 bits
Volatile Enhanced Configuration Register (VECR), 8 bits
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Volatile and Non Volatile Registers
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