R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 167

• 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
N O T E S :
Table 16.6 Voltage Detection Circuit Electrical Characteristics
Table 16.7 Reset Circuit Electrical Characteristics (When Using Hardware Reset 2
Table 16.8 Reset Circuit Electrical Characteristics (When Not Using Hardware Reset 2)
Figure 16.3 Reset Circuit Electrical Characteristics
NOTES:
N O T E S :
1 . W h e n n o t u s i n g h a r d w a r e r e s e t 2 , u s e w i t h V c c
2 . t w ( p o r 1 ) i s t i m e t o h o l d t h e e x t e r n a l p o w e r b e l o w e f f e c t i v e v o l t a g e ( V p o r 1 ) .
1. The measuring condition is Vcc=AVcc=2.7V to 5.5V and Topr=-40°C to 85°C.
2. This shows the time until the voltage detection interrupt request is generated since the voltage passes Vdet.
3. This shows the required time until the voltage detection circuit operates when setting to "1" again after setting the VC27 bit in the VCR2
1 . T h e v o l t a g e d e t e c t i o n c i r c u i t w h i c h i s e m b e d d e d i n a m i c r o c o m p u t e r i s a f a c t o r t o g e n e r a t e t h e h a r d w a r e r e s e t 2 . R e f e r t o 5 . 1 . 2 H a r d w a r e
2 . T h i s c o n d i t i o n i s n o t a p p l i c a b l e w h e n u s i n g V
3 . W h e n t u r n i n g p o w e r o n a f t e r t h e e x t e r n a l p o w e r h a s b e e n h e l d b e l o w t h e v a l i d v o l t a g e ( V p o r 1 ) f o r g r e a t e r t h a n 1 0 s e c o n d s , r e f e r t o T a b l e 1 6 . 8
4 . t w ( p o r 2 ) i s t i m e t o h o l d t h e e x t e r n a l p o w e r b e l o w e f f e c t i v e v o l t a g e ( V p o r 2 ) .
Vccmin
Symbol
Symbol
S y m b o l
V p o r 1
tW(Vpor1-
tW(Vpor1-
tW(Vpor1-
tW(Vpor1-
Vdet
td(E-A)
V p o r 2
t
W
( V p o r 2 -
register to “0”.
R e s e t 2 .
R e s e t C i r c u i t E l e c t r i c a l C h a r a c t e r i s t i c s ( W h e n N o t U s i n g H a r d w a r e R e s e t 2 ) .
V d e t )
Vdet)
Vdet)
Vdet)
Vdet)
Internal reset signal
Jan 27, 2006
(“L” effective)
Voltage detection interrupt request generating time
P o w e r - o n r e s e t v a l i d v o l t a g e
S u p p l y v o l t a g e r i s i n g t i m e w h e n p o w e r - o n r e s e t i s c a n c e l e d
Supply voltage rising time when power-on reset is canceled
Supply voltage rising time when power-on reset is canceled
Supply voltage rising time when power-on reset is canceled
Voltage detection level
Voltage detection circuit self consumption current
Waiting time until voltage detection circuit operation starts
Microcomputer operation voltage minimum value
P o w e r - o n r e s e t v a l i d v o l t a g e
S u p p l y v o l t a g e r i s i n g t i m e w h e n p o w e r - o n r e s e t i s c a n c e l e d
NOTES:
V
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
det (3)
V
por1
det
shows the voltage detection level of the voltage detection circuit. Refer to “5.4 Voltage Detection Circuit” for details.
page 156 of 205
t
w(por1)
Parameter
Parameter
P a r a m e t e r
t
w(Vpor1–Vdet)
C C
f
RING-S
(
2)
2 . 7 V .
1
1 . 0 V .
(
3)
(2 )
X 32
Sampling time (1,2)
VC27=1, VCC=5.0V
– 2 0 ° C
0°C
–20°C
– 2 0 ° C
0°C
–20°C
–20°C
Topr
Topr
T o p r < 8 5 ° C
Topr < 0°C, t
T o p r < 0 ° C , t
M e a s u r i n g c o n d i t i o n
Measuring condition
t
M e a s u r i n g c o n d i t i o n
Topr < 85°C
Topr < 85°C, t
w(por2)
85°C, t
85°C, t
W
W
t
W
W
(por1)
(por1)
w(Vpor2 –Vdet)
(por1)
( p o r 1 )
W
(por2)
V
V
f
RING-S
cc min
por2
10s
1s
30s
1 0 s
1
(2)
0s
(2)
(2)
(2 )
(4)
X 32
16. Electrical Characteristics
V
det (3)
Min.
Min.
3.3
2.7
M i n .
Standard
S t a n d a r d
Standard
Typ.
T y p .
(1, 3)
600
3.8
T y p .
40
)
Max.
M a x .
4.3
100
100
Max.
20
0 . 1
0 . 5
V d e t
1 0 0
1
Unit
U n i t
µs
µs
U n i t
ms
ms
ms
ms
V
nA
V
V
ms
V