S-25C256A Datasheet, PDF (23/31 Pages) Seiko Instruments Inc – Write protect function during the low power supply voltage

Rev.2.2_02_S
2. 1 Input pin
CS, SCK
SPI SERIAL E²PROM
S-25C256A
SI, WP, HOLD
Figure 20 CS , SCK Pin
2. 2 Output pin
Figure 21 SI, WP , HOLD Pin
VCC
SO
Figure 22 SO Pin
3. Precautions for use
• Absolute maximum ratings: Do not operate these ICs in excess of the absolute maximum ratings (as listed on the
data sheet). Exceeding the supply voltage rating can cause latch-up. Perform operations after confirming the detailed
operation condition in the data sheet.
• Operations with moisture on the S-25C256A pins may occur malfunction by short-circuit between pins. Especially, in
occasions like picking the S-25C256A up from low temperature tank during the evaluation. Be sure that not remain
frost on the S-25C256A’s pins to prevent malfunction by short-circuit.
Also attention should be paid in using on environment, which is easy to dew for the same reason.
23