R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 63

• 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
9.4
9.4.1
Table 9.2
NOTES:
High-Speed Mode
Medium-
Speed
Mode
High-Speed,
Low-Speed
On-Chip
Oscillator
Mode
There are three power control modes. All modes other than wait and stop modes are referred to as
normal operating mode.
1. The low-speed on-chip oscillator is used as the on-chip oscillator clock when the CM14 bit in the
Normal operating mode is further separated into four modes.
In normal operating mode, the CPU clock and the peripheral function clock are supplied to operate
the CPU and the peripheral function clocks. Power consumption control is enabled by controlling the
CPU clock frequency. The higher the CPU clock frequency, the more processing power increases.
The lower the CPU clock frequency, the more power consumption decreases. When unnecessary
oscillator circuits stop, power consumption is further reduced.
Before the clock sources for the CPU clock can be switched over, the new clock source after
switching needs to be stabilized and oscillated. If the new clock source is the main clock, allow
sufficient wait time in a program until an oscillation is stabilized before exiting.
(1)
CM1 register is set to “0” (low-speed on-chip oscillator on) and the HRA01 bit in the HRA0 register
is set to “0”.
The high-speed on-chip oscillator is used as the on-chip oscillator clock when the HRA00 bit in the
HRA0 register is set to “1” (high-speed on-chip oscillator A on) and the HRA01 bit in the HRA0
register is set to “1”.
Power Control
Jan 19, 2006
Normal Operating Mode
Modes
Setting and Mode of Clock Associated Bit
divide-by-2
divide-by-4
divide-by-8
divide-by-16
no division
divide-by-2
divide-by-4
divide-by-8
divide-by-16
Page 48 of 254
OCD Register
OCD2
0
0
0
0
0
1
1
1
1
1
CM17, CM16
00b
01b
10b
00b
01b
10b
11b
11b
−
−
CM1
Register
CM13
1
1
1
1
1
−
−
−
−
−
9. Clock Generation Circuit
CM06
0
0
0
1
0
0
0
0
1
0
CM0
Register
CM05
0
0
0
0
0
−
−
−
−
−