R5F21256SNFP#U0 Renesas Electronics America, R5F21256SNFP#U0 Datasheet - Page 442

• Manufacturer Part Number: R5F21256SNFP#U0
• Description: IC R8C MCU FLASH 32K 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21256SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 19.18
Figure 19.19
19.5.1.1
Figure 19.18 shows an Example of Pin Processing in Standard Serial I/O Mode 2, and Figure 19.19 shows an
Example of Pin Processing in Standard Serial I/O Mode 3. Since the controlled pins vary depending on the
programmer, refer to the manual of your serial programmer for details.
Feb 29, 2008
Example of Circuit Application in Standard Serial I/O Mode
Example of Pin Processing in Standard Serial I/O Mode 2
Example of Pin Processing in Standard Serial I/O Mode 3
NOTES:
Data Output
Data Input
NOTES:
MODE I/O
Reset input
1. In this example, modes are switched between single-chip mode and
2. Connecting the oscillation is necessary. Set the main clock frequency 1
1. Controlled pins and external circuits vary depending on the programmer.
2. In this example, modes are switched between single-chip mode and
3. When operating with the on-chip oscillator clock, it is not necessary to
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standard serial I/O mode by controlling the MODE input with a switch.
MHz to 20 MHz. Refer to Appendix Figure 2.1 Connection Example
with M16C Flash Starter (M3A-0806).
Refer to the programmer manual for details.
standard serial I/O mode by connecting a programmer.
connect an oscillating circuit.
User reset signal
TXD
RXD
MODE
RESET
MCU
MCU
MODE
19. Flash Memory