R5F2L3AAANFP#U1 Renesas Electronics America, R5F2L3AAANFP#U1 Datasheet - Page 92

• Manufacturer Part Number: R5F2L3AAANFP#U1
• Description: MCU FLASH 96+4KB 100LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/Lx/3AAr

Specifications of R5F2L3AAANFP#U1

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LCD, POR, PWM, Voltage Detect, WDT
• Number Of I /o: 88
• Program Memory Size: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 20x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group,
R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, R8C/L3AB Group
REJ09B0441-0100 Rev.1.00
Page 55 of 802
5.2
5.2.1
5.2.2
A reset is applied using the RESET pin. When a low-level signal is applied to the RESET pin while the supply
voltage meets the recommended operating conditions, the pins, CPU, and SFRs are all reset (refer to Table 5.2 Pin
Status while RESET Pin Level is Low).
When the input level applied to the RESET pin changes from low to high, a program is executed beginning with the
address indicated by the reset vector. After reset, the low-speed on-chip oscillator clock with no division is
automatically selected as the CPU clock.
Refer to 4. Special Function Registers (SFRs) for the status of the SFRs after reset.
The internal RAM is not reset. If the RESET pin is pulled low while writing to the internal RAM is in progress, the
contents of internal RAM will be undefined.
Figure 5.4 shows an Example of Hardware Reset Circuit and Operation and Figure 5.5 shows an Example of
Hardware Reset Circuit (Usage Example of External Supply Voltage Detection Circuit) and Operation.
(1) Apply a low-level signal to the RESET pin.
(2) Wait for 10 s.
(3) Apply a high-level signal to the RESET pin.
(1) Apply a low-level signal to the RESET pin.
(2) Let the supply voltage increase until it meets the recommended operating conditions.
(3) Wait for td(P-R) or more to allow the internal power supply to stabilize (refer to 34. Electrical
(4) Wait for 10 s.
(5) Apply a high-level signal to the RESET pin.
Hardware Reset
Characteristics).
When Power Supply is Stable
Power On
Oct 30, 2009
5. Resets