![](http://datasheet.mmic.net.cn/330000/MB90F362_datasheet_16437851/MB90F362_15.png)
MB90360 Series
15
10. Connection of unused pins of A/D converter if A/D converter is used
Connect unused pins of A/D converter to AV
CC
=
V
CC
, AV
SS
=
AVR
=
V
SS
.
11. Notes on energization
To prevent the internal regulator circuit from malfunctioning, set the voltage rise time during energization at
50
μ
s or more (0.2 V to 2.7 V)
12. Stabilization of power supply voltage
A sudden change in the power supply voltage may cause the device to malfunction even within the specified
V
CC
power supply voltage operating guarantee range. Therefore, the V
CC
power supply voltage should be stabi-
lized.
For reference, the power supply voltage should be controlled so that V
CC
ripple variations (peak-to-peak value)
at commercial frequencies (50 Hz to 60 Hz) fall below 10
%
of the standard V
CC
power supply voltage and the
coefficient of transient fluctuation does not exceed 0.1 V/ms at instantaneous power switching.
13. Initialization
In the device, there are internal registers which are initialized only by a power-on reset. To initialize these registers,
turn on the power again.
14. Notes on using CAN function
To use CAN function, please set ’1’ to DIRECT bit of CAN direct mode register (CDMR) .
If DIRECT bit is set to ’0’ (initial value) , wait states will be performed when accessing CAN registers.
Note : Please refer to Hardware Manual of MB90360 series for detail of CAN Direct Mode Register.
15. Flash security function
The security bit is located in the area of the flash memory.
If protection code 01
H
is written in the security bit, the flash memory is in the protected state by security.
Therefore, please do not write 01
H
in this address if you do not use the security function.
Please refer to following table for the address of the security bit.
16. Correspondence with
+
105
°
C or more
If used exceeding T
A
=
+
105
°
C, please contact Fujitsu for reliability limitations.
Flash memory size
Address for security bit
MB90F362
MB90F362S
MB90F362T
MB90F362TS
MB90F367
MB90F367S
MB90F367T
MB90F367TS
Embedded 512 Kbit Flash Memory
FF0001
H