HD64F36024FX Datasheet, PDF (308/386 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 18 Electrical Characteristics
18.3.6 Power-Supply-Voltage Detection Circuit Characteristics (Optional)
Table 18.15 Power-Supply-Voltage Detection Circuit Characteristics
V_SS = 0.0 V, T_a = –20 to +75°C, unless otherwise indicated.
Item
Symbol
Test
Values
Condition Min Typ Max Unit
Power-supply falling detection
voltage
Vint (D) LVDSEL = 0 3.3 3.7 —
V
Power-supply rising detection
voltage
Reset detection voltage 1*¹
Reset detection voltage 2*²
Vint (U) LVDSEL = 0 —
4.0 4.5 V
Vreset1 LVDSEL = 0 —
2.3 2.7 V
Vreset2 LVDSEL = 1 3.0 3.6 4.2 V
Lower-limit voltage of LVDR
operation*³
V
LVDRmin
1.0 —
—
V
LVD stabilization time
Current consumption in standby
mode
t
LVDON
I_STBY
50
—
—
µs
LVDE = 1, 
—
350 µA
Vcc = 5.0 V,
When a 32-
kHz crystal
resonator is
not used
Notes: 1. This voltage should be used when the falling and rising voltage detection function is
used.
2. Select the low-voltage reset 2 when only the low-voltage detection reset is used.
3. When the power-supply voltage (Vcc) falls below V = 1.0 V and then rises, a reset
LVDRmin
may not occur. Therefore sufficient evaluation is required.
Rev. 4.00 Sep. 23, 2005 Page 280 of 354
REJ09B0025-0400