R5F21191SP#U0 Renesas Electronics America, R5F21191SP#U0 Datasheet - Page 11

• Manufacturer Part Number: R5F21191SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/19r

Specifications of R5F21191SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x1b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

4.
5.
6.
7.
8.
9.
10. Clock Generation Circuit
5.1
5.2
5.3
5.4
5.5
5.6
6.1
6.2
6.3
6.4
6.5
7.1
7.2
7.3
8.1
10.1
10.2
Special Function Registers (SFRs)
Resets
Programmable I/O Ports
Voltage Detection Circuit
Processor Mode
Bus
5.1.1
5.1.2
7.1.1
7.1.2
7.1.3
10.2.1
10.2.2
Hardware Reset ........................................................................................24
Power-On Reset Function .........................................................................26
Voltage Monitor 1 Reset ...........................................................................27
Voltage Monitor 2 Reset............................................................................27
Watchdog Timer Reset..............................................................................27
Software Reset..........................................................................................27
Functions of Programmable I/O Ports .......................................................28
Effect on Peripheral Functions ..................................................................28
Pins Other than Programmable I/O Ports..................................................28
Port settings ..............................................................................................35
Unassigned Pin Handling ..........................................................................39
VCC Input Voltage.....................................................................................46
Voltage Monitor 1 Reset............................................................................48
Voltage Monitor 2 Interrupt and Voltage Monitor 2 Reset .........................49
Processor Modes ......................................................................................51
Main Clock.................................................................................................60
On-Chip Oscillator Clocks .........................................................................61
When Power Supply is Stable ............................................................24
Power On............................................................................................24
Monitoring Vdet1 ................................................................................46
Monitoring Vdet2 ................................................................................46
Digital Filter.........................................................................................46
Low-Speed On-Chip Oscillator Clock .................................................61
High-Speed On-Chip Oscillator Clock ................................................61
A - 2
18
22
28
40
51
52
53