Renesas RX65N User Manual
RENESAS TECHNICAL UPDATE
TOYOSU FORESIA, 3-2-24, Toyosu, Koto-ku, Tokyo 135-0061, Japan
Renesas Electronics Corporation
Date: Mar. 30, 2021
Product
Category
Title
MPU/MCU
RX65N Group and RX651 Group, Expansion of the
Lower Limit of the Power SupplyVoltage Supplied to
the Battery Backup Power Supply Pin
Document
No.
Information
Category
TN-RX*-A0250A/E
Technical Notification
Rev.
Lot No.
Applicable
Product
RX65N Group, RX651 Group
All
Reference
Document
RX65N Group, RX651 Group User’s
Manual: Hardware Rev.2.30
(R01UH0590EJ0230)
This document describes an extension of the lower limit of the power supply voltage supplied to the battery backup power
supply pin for the applicable products.
• Page 74 of 2729
The description for power supply voltage in Table 1.1, Outline of Specifications (10/10) is changed as follows.
Before correction
Table 1.1 Outline of Specifications (10/10)
Classification Module/Function Description
Omitted.
Power supply voltage VCC = AVCC0 = AVCC1 = VCC_USB = 2.7 to 3.6 V, 2.7 ≤ VREFH0 ≤ AVCC0,
= 2.0 to 3.6 V
V
BATT
Omitted.
1.00
After correction
Table 1.1 Outline of Specifications (10/10)
Classification Module/Function Description
Omitted.
Power supply voltage VCC = AVCC0 = AVCC1 = VCC_USB = 2.7 to 3.6 V, 2.7 ≤ VREFH0 ≤ AVCC0,
= 1.62 to 3.6 V*
V
BATT
Note 6. The low CL crystal unit cannot be used when the V
6
Omitted.
Omitted.
voltage is less than 2.0 V.
BATT
©2021. Renesas Electronics Corporation, All rights reserved. Page 1 of 5
RENESAS TECHNICAL UPDATE TN-RX*-A0250A/E
• Page 2626 of 2729
The specification for V
Conditions are changed as follows.
Before correction
Table 60.2 Recommended Operating Conditions
V
power supply voltage V
BATT
Input voltage (5V tolerant ports 11 to 17, ports 20 and
21, ports 30 to 33, port 67, and ports C0 to C3)*
Note 4. For P32, P31, and P30, input as follows when the V
V
Min. = –0.3, Max. = V
in
After correction
power supply voltage and the description of Note 4 in Table 60.2, Recommended Operating
BATT
Item Symbol Min. Typ. Max. Unit
Omitted.
Omitted.
4
Omitted.
Omitted.
BATT
BATT
+ 0.3 (V
= 2.0 to 3.6 V)
BATT
BATT
V
in
2.0 —3.6V
–0.3 — VCC + 3.6 (up to 5.5) V
power supply is selected.
Date: Mar. 30, 2021
Table 60.2 Recommended Operating Conditions
Item Symbol Min. Typ. Max. Unit
Omitted.
V
power supply voltage V
BATT
BATT
1.62*
2
Omitted.
Input voltage (5V tolerant ports: P11 to P17, P20, P21,
P30 to P33, P67, and PC0 to PC3)*
5
V
in
–0.3 — VCC + 3.6 (up to 5.5) V
Omitted.
Omitted.
Note 2. The low CL crystal unit cannot be used when the V
voltage is less than 2.0 V.
BATT
Omitted.
Note 5. For P32, P31, and P30, input as follows when the V
V
Min. = –0.3, Max. = V
in
BATT
+ 0.3 (V
= 1.62 to 3.6 V)
BATT
power supply is selected.
BATT
• Page 2627 of 2729
The description of Note 3 in Table 60.3, DC Characteristics (1) is changed as follows.
Before correction
Note 3. For P32, P31, and P30, input as follows when the V
V
Min. = V
IH
× 0.8, VIL Max. = V
BATT
BATT
× 0.2 (V
power supply is selected.
BATT
= 2.0 to 3.6 V)
BATT
—3.6V
After correction
Note 3. For P32, P31, and P30, input as follows when the V
V
Min. = V
IH
× 0.8, VIL Max. = V
BATT
BATT
× 0.2 (V
power supply is selected.
BATT
= 1.62 to 3.6 V)
BATT
Page 2 of 5
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