NEC PD78F9488 User Manual
Page 360
CHAPTER 22 ELECTRICAL SPECIFICATIONS (
µ
PD789488, 78F9488, 789489, 78F9489)
360
User’s Manual U15331EJ4V1UD
Data Retention Timing (STOP Mode Release by RESET)
V
DD
Data retention mode
STOP mode
HALT mode
Internal reset operation
Operation mode
t
SREL
t
WAIT
STOP instruction execution
V
DDDR
RESET
Data Retention Timing (Standby Release Signal: STOP Mode Release by Interrupt Request Signal)
V
DD
Data retention mode
STOP mode
HALT mode
Operation mode
t
SREL
t
WAIT
STOP instruction execution
V
DDDR
Standby release signal
(interrupt request)
Oscillation Stabilization Wait Time (T
A
= –40 to +85
°C, V
DD
= 1.8 to 5.5 V)
Parameter Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Release by RESET
2
15
/f
X
s
Oscillation stabilization wait
time
Note 1
t
WAIT
Release by interrupt
Note 2
s
Notes 1. Use a resonator whose oscillation stabilizes within the oscillation stabilization wait time.
2. Selection of 2
12
/f
X
, 2
15
/f
X
, or 2
17
/f
X
is possible with bits 0 to 2 (OSTS0 to OSTS2) of the oscillation
stabilization time selection register (OSTS).
Remark f
X
: Main system clock oscillation frequency