470
Usage Notes:
1. If the A/D converter is not used, do not leave the AV
CC
, V
ref
, and AV
SS
pins open. Connect
AV
CC
and AV
ref
to V
CC
, and connect AV
SS
to V
SS
.
2. Current dissipation values are for V
IH
min = V
CC
- 0.5 V and V
IL
max = 0.5 V with all output
pins unloaded and the on-chip pull-up transistors in the off state.
3. ICC depends on V
CC
and f as follows:
I
CC
max = 1.0 (mA) + 1.29 (mA/MHz · V)
×
V
CC
×
f [ordinary operation]
I
CC
max = 1.0 (mA) + 1.00 (mA/MHz · V)
×
V
CC
×
f [sleep]
4. When the A/D converter is not used, and in standby mode, AV
CC
and AV
ref
must still be
connected to the power supply (V
CC
).
5. The ZTAT and mask versions have the same functions, and the electrical characteristics of
both are within specification, but characteristic-related performance values, operating margins,
noise margins, noise emission, etc., are different. Caution is therefore required in carrying out
system design, and when switching between ZTAT and mask versions.
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Страница 525: ...490 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 18 Self Refresh ...
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