cancel
Showing results for 
Search instead for 
Did you mean: 

Knowledge Base Articles

Voltage at WP# and HOLD# Pins on S25FL1xxK SPI Flash When Floating - KBA218527

Anonymous
Not applicable

Voltage at WP# and HOLD# Pins on S25FL1xxK SPI Flash When Floating - KBA218527

Version: **

Translation - Japanese:  フローティング時のS25FL1xxK SPIフラッシュのWP#およびHOLD#ピンの電圧 - KBA218527 - Community Translated (JA)

Question:

For the S25FL1xxK SPI Flash, the WP# and HOLD# input signal pin will not be used, and will be left floating. What is the expected ViH level at these two signal pins, after initial power ON?

Answer:

The S25FL1xxK series has internal pull-ups on WP# and HOLD# pins, and will be at ViH when left unconnected (floating). Assuming that 10x or low capacitive-loading probes are used to measure the voltage, the ViH level measured at WP# and HOLD# will be ViH = VCC x 0.7 (typical). As an example, when VCC = 3.0 V, the expected ViH level measured at WP# and HOLD# pins will be ~2.1 V, after initial power ON.

0 Likes
Version history
Revision #:
1 of 1
Last update:
‎Mar 12, 2017 11:33 PM
Updated by:
Anonymous
 
Contributors