hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 570

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Section 16 Electrical Characteristics
Table 16. 31 Power Supply Voltage Detection Circuit Characteristics (5)
Using external reference voltage and detect voltage external input (VREFSEL = VINTDSEL =
VINTUSEL = 1)
Note: * The VextD voltage must always be greater than the VextU voltage.
16.8.8
Table 16.32 Power-On Reset Circuit Characteristics
V
Note: Make sure to drop the power supply voltage, V
Rev. 7.00 Mar 10, 2005 page 528 of 652
REJ09B0042-0700
Item
Item
Comparator detection
accuracy
extD/extU pin input
voltage
Vref pin input voltage
RES pin pull-up
resistance
Power-on reset start
voltage
CC
= 2.7 V to 5.5 V, AV
after the RES pin load had thoroughly dissipated. To drain the load of the RES pin,
attaching a diode to the V
work properly if the power supply voltage, V
Power-On Reset Circuit Characteristics
Symbol
Vcdl
VextD *
VextU *
Vref5
Symbol Min
R
V
CC
por
RES
= 2.7 V to 5.5 V, V
CC
65
—
side is recommended. The power-on reset function may not
Min
0.1
–0.3
–0.3
0.8
Rated Values
Typ
—
—
—
—
Typ
100
—
Rated Values
SS
= AV
CC
, is raised from a level exceeding 100 mV.
CC
Max
—
V
AV
whichever is
lower
3.6 or AV
+ 0.3, whichever
is lower
2.8
CC
SS
, to below Vpor = 100 mV and then raise it
CC
Max
—
100
= 0.0 V, unless otherwise specified
+ 0.3 or
+ 0.3,
CC
Unit
kΩ
mV
Unit
V
V
V
V
Test Condition
Test Condition
| VextU – Vref |
| VextD – Vref |
V
V
V
CC
CC
CC
= 2.7 to 3.3 V
= 3.3 to 5.5 V
= 2.7 to 5.5 V