RX230 Datasheet, PDF (85/177 Pages) Renesas Technology Corp – 54-MHz 32-bit RX MCUs, built-in FPU, 88.56 DMIPS, up to 512-KB flash memory

RX230 Group, RX231 Group
5. Electrical Characteristics
5. Electrical Characteristics
5.1 Absolute Maximum Ratings
Table 5.1
Absolute Maximum Ratings
Conditions: VSS = AVSS0 = VREFL0 = VREFL= VSS_USB = 0 V
Item
Symbol
Value
Unit
Power supply voltage
VCC, VCC_USB
–0.3 to +6.5
V
VBATT power supply voltage
Input voltage
Ports for 5 V tolerant*¹
P03, P05, P40 to P47
Vbatt
V_in
–0.3 to +6.5
V
–0.3 to +6.5
V
–0.3 to AVCC0 +0.3
Ports other than above
–0.3 to VCC +0.3
Reference power supply voltage
VREFH0
–0.3 to AVCC0 +0.3
V
VREFH
Analog power supply voltage
Analog input
voltage
When AN000 to AN007 are used
When AN016 to AN031 are used
Operating temperature*²
AVCC0
V_AN
T_opr
–0.3 to +6.5
V
–0.3 to AVCC0 +0.3
V
–0.3 to VCC +0.3
–40 to +85
°C
–40 to +105
Storage temperature
T_stg
–55 to +125
°C
Caution: Permanent damage to the MCU may be caused if absolute maximum ratings are exceeded.
To preclude any malfunctions due to noise interference, insert capacitors with high frequency characteristics between the VCC
and VSS pins, between the AVCC0 and AVSS0 pins, between the VCC_USB and VSS_USB pins, between the VREFH0 and
VREFL0 pins, and between the VREFH and VREFL pins. Place capacitors of about 0.1 μF as close as possible to every power
supply pin and use the shortest and heaviest possible traces.
Connect the VCL pin to a VSS pin via a 4.7 μF capacitor. The capacitor must be placed close to the pin. For details, refer to
section 5.15.1, Connecting VCL Capacitor and Bypass Capacitors.
Do not input signals or an I/O pull-up power supply to ports other than 5-V tolerant ports while the device is not powered.
The current injection that results from input of such a signal or I/O pull-up may cause malfunction and the abnormal current that
passes in the device at this time may cause degradation of internal elements. Even if –0.3 to +6.5 V is input to 5-V tolerant ports,
it will not cause problems such as damage to the MCU.
Note 1. Ports 12, 13, 16, 17, 30, 31, 32, and B5 are 5 V tolerant.
Note 2. The upper limit of operating temperature is 85°C or 105°C, depending on the product. For details, refer to section 1.2, List of
Products.
R01DS0261EJ0110 Rev.1.10
Oct 30, 2015
Page 85 of 177