R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 53

• Manufacturer Part Number: R5F21162SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/16r

Specifications of R5F21162SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/16 Group, R8C/17 Group
Rev.2.10
REJ09B0169-0210
9.
The MCU has two on-chip clock generation circuits:
Table 9.1 lists a Clock Generation Circuit Specification. Figure 9.1 shows a Clock Generation Circuit.
Figures 9.2 to 9.5 show clock-associated registers.
Table 9.1
NOTES:
Use of Clock
Clock Frequency 0 to 20MHz
Connectable
Oscillator
Oscillator
Connect Pins
Oscillation Stop,
Restart Function
Oscillator Status
After Reset
Others
• Main clock oscillation circuit
• On-chip oscillator (oscillation stop detection function)
Clock Generation Circuit
1. This pin can be used as P4_6 and P4_7 when using the on-chip oscillator clock for a CPU clock
while the main clock oscillation circuit is not used.
Item
Jan 19, 2006
Clock Generation Circuit Specification
• CPU clock source
• Peripheral
• Ceramic
• Crystal oscillator
XIN, XOUT
Usable
Stop
Externally
generated clock
can be input
Oscillation Circuit
function clock
source
resonator
Main Clock
Page 38 of 254
(1)
• CPU clock source
• Peripheral function clock
• CPU and peripheral function
Approx. 8MHz
−
(Note 1)
Usable
Stop
−
High-Speed On-Chip Oscillator
source
clock sources when main
clock stops oscillating
On-Chip Oscillator
• CPU clock source
• Peripheral function clock
• CPU and peripheral function
Approx. 125kHz
−
(Note 1)
Usable
Oscillate
−
Low-Speed On-Chip Oscillator
source
clock sources when main
clock stops oscillating
9. Clock Generation Circuit