Specifications

Ra-01SC Specification V1.1
Low output logic
level
VOL
- - 0.1 V
High output logic
level
VOH
0.9 - - V
2.3. SPI Interface features
Name
Description
Condition Min Typ Max Unit
Fsck SCK frequency
- - - 10 MHz
TCH SCK High level
time
- 50 - - ns
TCL SCK Low level time
- 50 - - ns
Trise SCK Rise time - - 5 - ns
Tfall SCK Fall time - - 5
-
ns
Tsetup MOSI Time setting From MOSI
change to SCK
rising edge
30 - - ns
Thold MOSI Duration Change from rising
edge of SCK to
MOSI
20 - - ns
Tnsetup NSS Set up time From NSS falling
edge to SCK rising
edge
30 - - ns
Tnhold NSS Time maintain From SCK falling
edge to NSS rising
edge, normal mode
100 - - ns
Tnhigh SPI Access interval
NSS High level time
- 20 - - ns
T_DATA DATA maintenance
and set up time
- 250 - - ns
3. Appearance size
Ra-01SC has one antenna interface ：Spring antenna
Copyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved
Page 8 of 19