R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 30

• Manufacturer Part Number: R5F21133DFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY/R8C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/13 Group
Rev.1.20
REJ09B0111-0120
Figure 5.6 Power-on Reset Operation
Jan 27, 2006
Internal reset signal
(“L” effective)
NOTES:
1. Hold the voltage of the microcomputer operation voltage range (Vccmin or above) within sampling time.
2. A sampling clock is selectable. Refer to “5.4 Voltage Detection Circuit” for details.
3. V
4. Refer to Table 16.7, 16.8 for electrical characteristics.
V
V
RESET
det 3
por1
det
shows the voltage detection level of the voltage detection circuit. Refer to “5.4 Voltage Detection Circuit” for details.
about 5 k
page 19 of 205
t
w(por1)
Vcc
t
w(Vpor1–Vdet)
f
RING-S
1
X 32
Sampling time (1, 2)
RESET
V
0V
0V
CC
0.1V to 2.7V
t
w(por2)
within td(P-R)
t
w(Vpor2 –Vdet)
V
V
f
0.8V
RING-S
cc min
por2
1
CC
or above
X 32
V
det (3)