M16C26A Datasheet, PDF (282/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T) 18. Electrical Characteristics (M16C/26A, M16C/26B)
Table 18.6. Voltage Detection Circuit Electrical Characteristics ^{(1, 3)}
Symbol
Parameter
Vdet4
Vdet3
Vdet3s
Low Voltage Detection Voltage⁽¹⁾
Reset Level Detection Voltage⁽¹⁾
Low Voltage Reset Hold Voltage⁽²⁾
Standard
Measurement Condition
Unit
Min. Typ. Max.
3.2 3.8 4.45 V
VCC=0.8 to 5.5V
2.3 2.8 3.4 V
1.7 V
Vdet3r
Low Voltage Reset Release Voltage
2.35 2.9 3.5 V
NOTES:
1. Vdet4 >Vdet3
2. Vdet3s is the minmum voltage to maintain "hardware reset 2".
3. The voltage detection circuit is designed to use when VCC is set to 5V.
4. If the supply power voltage is greater than the reset level detection voltage when the reset level detection
voltage is less than 2.7V, the operation at f(BCLK) ≤ 10MHz is guranteed. However, A/D conversion, serial I/O,
flash memory program and erase are excluded.
Table 18.7. Power Supply Circuit Timing Characteristics
Symbol
Parameter
td(P-R) Wait Time to Stabilize Internal Supply Voltage when Power-on
td(ROC) Wait Time to Stabilize Internal On-chip Oscillator when Power-on
td(R-S) STOP Release Time
td(W-S) Low Power Dissipation Mode Wait Mode Release Time
td(S-R) Hardware Reset 2 Release Wait Time
td(E-A) Voltage Detection Circuit Operation Start Time
NOTES:
1. When VCC=5V
Standard
Measurement Condition
Unit
Min. Typ. Max.
2 ms
VCC = 2.7 to 5.5 V
40 µs
150 µs
150 µs
VCC = Vdet3r to 5.5 V
6⁽¹⁾ 20 ms
VCC = 2.7 to 5.5 V
20 µs
td(P-R)
Wait time to stabilize internal
supply voltage when power-on
td(ROC)
Wait time to stabilize internal
on-chip oscillator when power-
on
VCC
ROC
RESET
td(P-R)
td(R-S)
STOP release time
td(W-S)
Low power dissipation mode
wait mode release time
Interrupt for
(a) Stop mode release
or
(b) Wait mode release
CPU clock
td(ROC)
(a)
td(R-S)
(b)
td(W-S)
td(S-R)
Brown-out detection
reset (hardware reset 2)
release wait time
VCC
CPU clock
Vdet3r
td(S-R)
td(E-A)
Voltage detection circuit
operation start time
VC26, VC27
Voltage Detection Circuit
Stop
td(E-A)
Operate
Rev. 2.00 Feb.15, 2007 ^{page 265} of 329
REJ09B0202-0200