Rev. 6.00, 08/04, page 506 of 628
16.8.7
Power Supply Voltage Detection Circuit Characteristics
Table 16.27
Power Supply Voltage Detection Circuit Characteristics (1)
V
CC
= 2.7 V to 5.5 V, AV
CC
= 2.7 V to 5.5 V, V
SS
= AV
SS
= 0.0 V, unless otherwise specified
Rated Values
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
LVDR operation drop
voltage
*
V
LVDRmin
1.0
—
—
V
LVD stabilization time
T
LVDON
150
—
—
µs
Standby mode current
consumption
I
STBY
—
—
100
µA
LVDE = 1
V
CC
= 5.0 V
32 oscillator not
used
Note:
*
In some cases no reset may occur if the power supply voltage, V
CC
, drops below
VLVDRmin = 1.0 V and then rises, so thorough evaluation is called for.
Table 16. 28 Power Supply Voltage Detection Circuit Characteristics (2)
Using on-chip reference voltage and ladder resistor (VREFSEL = VINTDSEL = VINTUSEL = 0)
Rated Values
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Power supply drop
detection voltage
Vint(D)
*
3
3.3
3.7
4.2
V
LVDSEL = 0
Power supply rise
detection voltage
Vint(U)
*
3
3.6
4.0
4.5
V
LVDSEL = 0
Reset detection voltage
1
*
1
Vreset1
*
3
2.0
2.3
2.7
V
LVDSEL = 0
Reset detection voltage
2
*
2
Vreset2
*
3
2.7
3.3
3.9
V
LVDSEL = 1
Notes: 1. The above function should be used in conjunction with the voltage drop/rise detection
function.
2. Low-voltage detection reset should be selected for low-voltage detection reset only.
3. The values of Vint(D), Vint(U), Vreset1, and Vreset2 change relative to each other.
Example: If Vint(D) is the minimum value, Vint(U), Vreset1, and Vreset2 are also the
minimum values.
Содержание H8/38024 Series
Страница 18: ...Rev 6 00 08 04 page xviii of xxx...
Страница 30: ...Rev 6 00 08 04 page xxx of xxx...
Страница 130: ...Rev 6 00 08 04 page 100 of 628...
Страница 216: ...Rev 6 00 08 04 page 186 of 628...
Страница 416: ...Rev 6 00 08 04 page 386 of 628...
Страница 432: ...Rev 6 00 08 04 page 402 of 628...
Страница 468: ...Rev 6 00 08 04 page 438 of 628...
Страница 661: ...H8 38024 H8 38024S H8 38024F ZTAT H8 38124 Group Hardware Manual...