Hitachi H8S/2645, Hardware Manual

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Section Page Description
23.1 Absolute
Maximum Ratings
Table 23-1
Absolute Maximum
Ratings
753
Input voltage (OSC1, OSC2) V
in
–0.3 +3.5 V
lnput voltage (XTAL, EXTAL) V
in
–0.3 to A
CC
+0.3 V
Input voltage (ports 4 and 9) V
in
–0.3 to AV
CC
+0.3 V
Input voltage (ports A, B, C, D, E,
ports PF2, PF4 to PF6) V
in
–0.3 to LPV
CC
+0.3 V
Input voltage (ports H and J) V
in
–0.3 to PWMV
CC
+0.3 V
Input voltage (except ports 4, 9, A,
B, C, D, E, ports PF2, PF4 to PF6,
H and J) V
in
–0.3 to V
CC
+0.3 V
23.3 DC
Characteristics
Table 23-2 DC
Characteristics
755,
758
Input high
voltage
RES
,
STBY
,
NMI, FWE,
MD2 to MD0
V
IH
V
CC
– 0.7 — V
CC
+ 0.3 V
EXTAL V
CC
×
0.7 — V
CC
+ 0.3
Ports 1 to 3, 5,
H, J, K
Ports PF0, PF3,
PF7 2.2 — V
CC
+ 0.3
HRxD 2.2 — V
CC
+ 0.3
Ports A to E,
Ports PF2, PF4
to PF6 2.2 — LPV
CC
+ 0.3
Ports 4, 9 AV
CC
×
0.7 — AV
CC
+ 0.3
Input low
voltage
RES
,
STBY
,
NMI, FWE,
MD2 to MD0
V
IL
–0.3 — 0.5 V
EXTAL –0.3 — 0.8
Ports 1 to 3, 5,
A to F, H, J, K –0.3 — 0.8
HRxD –0.3 — V
CC
+ 0.2
Notes amended
*
1 If the A/D converter is not used, do not leave the AV
CC
, V
ref
, and AV
SS
pins
open. Apply a voltage between 4.5 V and 5.5 V to the AV
CC
and V
ref
pins by
connecting them to V
CC
, for instance. Set V
ref
≤
AV
CC
.
* 3 The values are for V
RAM
≤
LPV
CC
< 3.0 V, V
IH
min = V
CC
×
0.9, and V
IL
max =
0.3 V.
23.4.1 Clock Timing
Table 23-4 Clock
Timing
761 (Incorrect)20MHz
(Correct)Condition
B.1 Address 858 Data Bus Width of H'EBC0 to H'EFBF
(Incorrect)16/32
(Correct)8/16/32 *