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Table 15.9 Step-Up Circuit Characteristics of H8/3855, H8/3856, and H8/3857
V
= 3.0 V to 5.5 V, AV
CC
including subactive mode, unless otherwise specified.
Item
Symbol Pins
2X step-up output
V
UP2
voltage
3X step-up output
V
UP3
voltage
Step-up circuit
V
ci
reference voltage
≤ VLOUT ≤ 7.0 V, with 2X step-up V
Notes: 1. As V
CC
/3 ≤ V
V
CC
ci
A voltage not exceeding V
there is a risk of permanent damage to the device.
2. The guaranteed temperature as an electrical characteristic for die type products is
75°C.
= 3.0 V to 5.5 V, V
CC
Applicable
Test Conditions Min
VLOUT
V
I
C = 1 μF,
X1 = 32 kHz,
T
VLOUT
V
V
I
C = 1 μF,
X1 = 32 kHz,
T
V
V
ci
≤ 2.33 V.
should be input to V
CC
15. Electrical Characteristics (H8/3857 Group)
= AV
= 0.0 V, T
SS
SS
⎯
= V
= 3.0 V,
CC
ci
= 0.03 mA,
O
= 25°C
a
⎯
= 3.0 V,
CC
= 2.0 V,
ci
= 0.03 mA,
O
= 25°C
a
≤ V
1.6
ci
CC
/2 ≤ V
≤ 3.5 V, and with 3X step-up
CC
ci
. If this condition is not observed,
ci
Rev.3.00 Jul. 19, 2007 page 417 of 532
2
= –20°C to +75°C*
a
Values
Typ Max Unit Notes
5.96 ⎯
V
Figure 15.9
Reference
values
5.90 ⎯
V
Figure 15.9
Reference
values
⎯
1
3.5
V
*
REJ09B0397-0300
,
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