15
C005383_10 CR80XX Integration Guide
4.8 – Power On (Boot) Timing Diagram (CR8011 and CR8012 only)
The
PwrDwn
signal will transistion to HIGH
shortly after
V
in
is applied and will remain HIGH
until the main application starts.
Notes:
1. This time can be longer on USB model due to USB enumeration time.
Parameter
Symbol
Min
Typical
Max
Unit
Note
Time from Power On to
Outputs as Default
TPU1
10
msec
Time from Power On to
PwrDwn
transition to LOW
TPU2
9000
msec
Time from end of
TPU2
to
reader in Idle Mode
TPU3
1000
msec
1
TPU1
TPU3
TPU2
V
IN
nBeeper
nGoodRead
PwrDwn
