Table of Contents
Advertisement
M16C/29 Group
Table 20.6. Low Voltage Detection Circuit Electrical Characteristics (Note 1, Note 3)
Symbol
Voltage down detection voltage (Note 1)
Vdet4
Vdet3
Reset level detection voltage (Notes 1)
Low voltage reset retention voltage (Note 2)
Vdet3s
Low voltage reset release voltage
Vdet3r
Note 1: Vdet4 > Vdet3
Note 2: Vdet3s is the min voltage at which "hardware reset 2" is maintained.
Note 3: The low voltage detection circuit is designed to use when V
Table 20.7. Power Supply Circuit Timing Characteristics
Symbol
Time for internal power supply stabilization during powering-on
td(P-R)
td(ROC)
Time for internal on-chip oscillator stabilization during powering-on
td(R-S)
STOP release time (Note 2)
td(W-S)
Low power dissipation mode wait mode release time (Note 2)
td(S-R)
Hardware reset 2 release wait time
td(E-A)
Low voltage detection circuit operation start time (Note 3)
Note 1: When V
= 5V
CC
Note 2: This is the time between interrupt for (STOP/WAIT) mode release and resumption of CPU clock operation.
Note 3: After enabling low voltage detection, this time is required before proper detection can occur.
V
CC
CPU clock
Interrupt for
stop mode
release
CPU clock
Rev.1.00 Nov 01,2004
REJ09B0101-0100Z
Parameter
Parameter
Vdet3r
page 327 of 402
20. Electrical Characteristics (Normal-version)
Measuring condition
V
=0.8 to 5.5V
CC
is set to 5V.
CC
Measuring condition
V
=2.7 to 5.5V
CC
V
=Vdet3r to 5.5V
CC
V
=2.7 to 5.5V
CC
td(S-R)
td(R-S)
Standard
Unit
Max.
Min.
Typ.
3.8
V
3.2
4.45
V
2.3
2.8
3.4
V
-
1.7
-
V
2.9
2.35
3.5
Standard
Unit
Min.
Typ.
Max.
ms
2
-
-
40
µs
150
µs
150
µs
6 (Note 1)
20
ms
20
µs
Advertisement
Table of Contents
