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| HD64F3687GHV Datasheet, PDF (468/566 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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Section 22 Electrical Characteristics
22.2.7 Power-Supply-Voltage Detection Circuit Characteristics
Table 22.9 Power-Supply-Voltage Detection Circuit Characteristics
VSS = 0.0 V, Ta = -20 to +75°C/-40 to +85°C, unless otherwise indicated.
Item
Symbol
Test
Condition
Values
Min. Typ. Max. Unit
Power-supply falling detection
voltage
Vint (D)
LVDSEL = 0 3.4
3.7
â
V
Power-supply rising detection
voltage
Reset detection voltage 1*1
Reset detection voltage 2*2
Vint (U)
Vreset1
Vreset2
LVDSEL = 0 â
4.0
4.4
V
LVDSEL = 0 â
2.3
2.6
V
LVDSEL = 1 3.3
3.6
3.9
V
Lower-limit voltage of LVDR
operation
VLVDRmin
1.0
â
â
V
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.
22.2.8 LVDI External Input Voltage Detection Circuit Characteristics
Table 22.10 LVDI External Input Voltage Detection Circuit Characteristics
Vcc = 4.5 to 5.5 V, AVcc = 4.5 to 5.5 V, VSS = 0.0 V, Ta = -20 to +75°C/-40 to +85°C
Item
ExtD/ExtU input detection voltage
ExtD/ExtU input voltage range
Symbol
Test
Condition Min.
Vexd
1.0
VextD/VextU VextD > VextU â0.3
Values
Typ. Max. Unit
1.15

1.30 V
Lower V
voltage
of AVcc
+ 0.3 or
Vcc +
0.3
Rev. 3.00 Sep. 10, 2007 Page 434 of 528
REJ09B0216-0300
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