R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 606

• Manufacturer Part Number: R5F21324ANSP#U1
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Ar

Specifications of R5F21324ANSP#U1

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Under development
R8C/32A Group
REJ09B0458-0020 Rev.0.20
Page 576 of 583
33.16.1.3 How to Access
33.16.1.4 Rewriting User ROM Area
33.16.1.5 Programming
33.16.1.6 Entering Stop Mode or Wait Mode
33.16.1.7 Programming and Erasure Voltage for Flash Memory
33.16.1.8 Block Blank Check
To set one of the following bits to 1, first write 0 and then 1 immediately. Do not generate an interrupt between
writing 0 and writing 1.
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•
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To set one of the following bits to 0, first write 1 and then 0 immediately. Do not generate an interrupt between
writing 1 and writing 0.
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In EW0 Mode, if the supply voltage drops while rewriting any block in which a rewrite control program is
stored, it may not be possible to rewrite the flash memory because the rewrite control program cannot be
rewritten correctly. In this case, use standard serial I/O mode.
Do not write additions to the already programmed address.
Do not enter stop mode or wait mode during erase-suspend.
If the FST7 in the FST register is set to 0 (busy (during programming or erasure execution), do not enter to stop
mode or wait mode.
To perform programming and erasure, use VCC = 2.7 V to 5.5 V as the supply voltage. Do not perform
programming and erasure at less than 2.7 V.
Do not execute the block blank check command during erase-suspend.
The FMR01 bit or FMR02 bit in the FMR0 register
The FMR13 bit in the FMR1 register
The FMR20 bit, FMR22 bit, or FMR 27 bit in the FMR2 register
The FMR14 bit, FMR15 bit, FMR16 bit, or FMR17 bit in the FMR1 register
Preliminary specification
Specifications in this manual are tentative and subject to change.
Nov 05, 2008
33. Usage Notes