RENESAS TECHNICAL UPDATE TN-RL*-A023A/E

Date:

Feb. 6,2014

(c) 2014. Renesas Electronics Corporation. All rights reserved.

Page 13 of 13

10. 24. 6. 4 Data retention power supply voltage characteristics (Page 568)

This shows the specifications changed in the ELECTRICAL SPECIFICATIONS of

10-pin products. The ELECTRICAL SPECIFICATIONS of “Flash ROM: 4 KB of

10-pin products and 16-pin products” will be made for the next revision of the

User’s Manual: Hardware.

Old:

24.6.4 Data retention power supply voltage characteristics

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

Data retention power

supply voltage range

1.9

5.5

V

Caution Data is retained until the power supply voltage becomes under the

minimum value of the data retention power supply voltage range. Note that

data in the RAM and RESF registers might not be cleared even if the power

supply voltage becomes under the minimum value of the data retention

power supply voltage range.

New:

24.6.6 Data retention power supply voltage characteristics

Parameter

Symbol

Conditions

MIN.

TYP.

MAX.

Unit

Data retention power

supply voltage

1.9

5.5

V

Caution Data in the RESF register is retained until the power supply voltage

becomes under the minimum value of the data retention power supply

even if the power supply voltage becomes under the minimum value of the

Normal operation

SPOR reset period

Normal operation

(Data retention mode)