R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 11

• Manufacturer Part Number: R5F2121AJFP#U0
• Description: MCU FLASH 96K 5K CMOS 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/21r

Specifications of R5F2121AJFP#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: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

7.
8.
9.
10.
11.
12.
6.2
6.3
7.1
7.2
7.3
7.4
7.5
8.1
10.1
10.2
10.3
10.4
10.5
10.6
12.1
6.1.2
10.2.1
10.2.2
10.3.1
10.3.2
10.3.3
10.3.4
10.3.5
10.3.6
10.3.7
10.3.8
10.4.1
10.4.2
10.4.3
10.5.1
10.6.1
10.6.2
10.6.3
10.6.4
12.1.1
12.1.2
12.1.3
Programmable I/O Ports ............................................................................................................... 38
Processor Mode ............................................................................................................................ 62
Bus ................................................................................................................................................ 63
Clock Generation Circuit ............................................................................................................... 64
Protection ...................................................................................................................................... 86
Interrupts ....................................................................................................................................... 87
Voltage Monitor 1 Reset ......................................................................................................................... 35
Voltage Monitor 2 Interrupt and Voltage Monitor 2 Reset ..................................................................... 36
Functions of Programmable I/O Ports ..................................................................................................... 38
Effect on Peripheral Functions ................................................................................................................ 39
Pins Other than Programmable I/O Ports ................................................................................................ 39
Port Settings ............................................................................................................................................ 50
Unassigned Pin Handling ........................................................................................................................ 61
Processor Modes ...................................................................................................................................... 62
XIN Clock ............................................................................................................................................... 71
On-Chip Oscillator Clocks ...................................................................................................................... 72
CPU Clock and Peripheral Function Clock ............................................................................................. 73
Power Control .......................................................................................................................................... 74
Oscillation Stop Detection Function ....................................................................................................... 82
Notes on Clock Generation Circuit ......................................................................................................... 85
Interrupt Overview .................................................................................................................................. 87
Monitoring Vdet2 ............................................................................................................................... 34
Low-Speed On-Chip Oscillator Clock ................................................................................................ 72
High-Speed On-Chip Oscillator Clock ............................................................................................... 72
System Clock ...................................................................................................................................... 73
CPU Clock .......................................................................................................................................... 73
Peripheral Function Clock (f1, f2, f4, f8 and f32) .............................................................................. 73
fOCO ................................................................................................................................................... 73
fOCO40M ........................................................................................................................................... 73
fOCO-F ............................................................................................................................................... 73
fOCO-S ............................................................................................................................................... 73
fOCO128 ............................................................................................................................................. 73
Standard Operating Mode ................................................................................................................... 74
Wait Mode .......................................................................................................................................... 75
Stop Mode ........................................................................................................................................... 79
How to Use Oscillation Stop Detection Function ............................................................................... 82
Stop Mode ........................................................................................................................................... 85
Wait Mode .......................................................................................................................................... 85
Oscillation Stop Detection Function ................................................................................................... 85
Oscillation Circuit Constants .............................................................................................................. 85
Types of Interrupts .............................................................................................................................. 87
Software Interrupts ............................................................................................................................. 88
Special Interrupts ................................................................................................................................ 89
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