HD6473847RHV Datasheet, PDF (467/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 17 Electrical Characteristics
Table 17.23 Power Supply Voltage Detection Circuit Characteristics (2)
Using on-chip reference voltage and ladder resistor (VREFSEL = VINTDSEL = VINTUSEL = 0)
Rated Values
Item
Symbol Test Conditions Min
Typ
Max
Unit
Power supply drop
Vint(D)^*3 LVDSEL = 0
3.3
3.7
4.2
V
detection voltage
Power supply rise
detection voltage
Vint(U)^*3 LVDSEL = 0
3.6
4.0
4.5
V
Reset detection voltage Vreset1^*3 LVDSEL = 0
2.0
2.3
2.7
V
1^*1
Reset detection voltage Vreset2^*3 LVDSEL = 1
2.7
3.3
3.9
V
2^*2
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 2 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.
Table 17.24 Power Supply Voltage Detection Circuit Characteristics (3)
Using on-chip reference voltage and detect voltage external input (VREFSEL = 0, VINTDSEL
and VINTUSEL = 1)
Rated Values
Item
Symbol Test Condition Min Typ Max
Unit
extD/extU interrupt
detection level
extD/extU pin input
voltage^*2
Vexd
VextD^*1
VextU^*1
0.80
V_CC = 2.7 to 3.3 V –0.3
1.20
—
1.60
V
V_CC + 0.3 or AV_CC V
+ 0.3, whichever is
lower
V = 3.3 to 5.5 V –0.3 —
CC
3.6 or AV + 0.3, V
CC
whichever is lower
Notes: 1. The VextD voltage must always be greater than the VextU voltage.
2. The maximum input voltage of the extD and extU pins is 3.6 V.
Rev. 7.00 Mar. 08, 2010 Page 435 of 510
REJ09B0024-0700