R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 12

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#U0

• 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: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

8.
9.
7.5
7.6
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
7.4.22
7.4.23
7.4.24
9.2.1
9.2.2
9.2.3
9.2.4
9.2.5
9.2.6
9.2.7
9.2.8
9.2.9
9.2.10
9.2.11
9.2.12
9.2.13
9.2.14
9.2.15
9.4.1
9.4.2
9.6.1
9.6.2
9.6.3
9.6.4
9.6.5
9.6.6
9.6.7
9.6.8
9.6.9
9.6.10
9.7.1
9.7.2
9.7.3
9.8.1
Bus .............................................................................................................................................. 112
Clock Generation Circuit ............................................................................................................. 114
Port Settings ............................................................................................................................................ 91
Unassigned Pin Handling ...................................................................................................................... 111
Overview ............................................................................................................................................... 114
Registers ................................................................................................................................................ 117
XIN Clock ............................................................................................................................................. 128
On-Chip Oscillator Clock ...................................................................................................................... 129
XCIN Clock ........................................................................................................................................... 130
CPU Clock and Peripheral Function Clock ........................................................................................... 131
Power Control ........................................................................................................................................ 133
Oscillation Stop Detection Function ..................................................................................................... 142
Notes on Clock Generation Circuit ....................................................................................................... 146
Drive Capacity Control Register 1 (DRR1) ........................................................................................ 88
Input Threshold Control Register 0 (VLT0) ....................................................................................... 89
Input Threshold Control Register 1 (VLT1) ....................................................................................... 90
System Clock Control Register 0 (CM0) .......................................................................................... 117
System Clock Control Register 1 (CM1) .......................................................................................... 118
System Clock Control Register 3 (CM3) .......................................................................................... 119
Oscillation Stop Detection Register (OCD) ...................................................................................... 121
High-Speed On-Chip Oscillator Control Register 7 (FRA7) ............................................................ 121
High-Speed On-Chip Oscillator Control Register 0 (FRA0) ............................................................ 122
High-Speed On-Chip Oscillator Control Register 1 (FRA1) ............................................................ 122
High-Speed On-Chip Oscillator Control Register 2 (FRA2) ............................................................ 123
Clock Prescaler Reset Flag (CPSRF) ................................................................................................ 123
High-Speed On-Chip Oscillator Control Register 4 (FRA4) ............................................................ 124
High-Speed On-Chip Oscillator Control Register 5 (FRA5) ............................................................ 124
High-Speed On-Chip Oscillator Control Register 6 (FRA6) ............................................................ 124
High-Speed On-Chip Oscillator Control Register 3 (FRA3) ............................................................ 124
Voltage Detect Register 2 (VCA2) ................................................................................................... 125
I/O Function Pin Select Register (PINSR) ....................................................................................... 126
Low-Speed On-Chip Oscillator Clock .............................................................................................. 129
High-Speed On-Chip Oscillator Clock ............................................................................................. 129
System Clock .................................................................................................................................... 131
CPU Clock ........................................................................................................................................ 131
Peripheral Function Clock (f1, f2, f4, f8, and f32) ........................................................................... 131
fOCO ................................................................................................................................................. 131
fOCO40M ......................................................................................................................................... 131
fOCO-F ............................................................................................................................................. 131
fOCO-S ............................................................................................................................................. 132
fOCO128 ........................................................................................................................................... 132
fC, fC2, fC4, and fC32 ...................................................................................................................... 132
fOCO-WDT ...................................................................................................................................... 132
Standard Operating Mode ................................................................................................................. 133
Wait Mode ........................................................................................................................................ 135
Stop Mode ......................................................................................................................................... 139
How to Use Oscillation Stop Detection Function ............................................................................. 143
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