R5F21102DFP#U0 Renesas Electronics America, R5F21102DFP#U0 Datasheet - Page 29

• Manufacturer Part Number: R5F21102DFP#U0
• Description: IC R8C MCU FLASH 8K 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/10r

Specifications of R5F21102DFP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, WDT
• Number Of I /o: 22
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/10 Group
Rev.1.20 Jan 27, 2006
REJ09B0019-0120
6. Clock Generation Circuit
Table 6.1 Clock Generation Circuit Specifications
O s c i l l a t i o n s t a r t s
a n d s t o p s
U s e o f c l o c k
C l o c k f r e q u e n c y
U s a b l e o s c i l l a t o r
P i n s t o c o n n e c t
o s c i l l a t o r
O s c i l l a t o r s t a t u s
a f t e r r e s e t
Other
NOTES:
1. Can be used as P4
The clock generation circuit contains two oscillator circuits as follows:
Table 6.1 lists the clock generation circuit specifications. Figure 6.1 shows the clock generation circuit.
Figures 6.2 and 6.3 show the clock-related registers.
• Main clock oscillation circuit
• On-chip oscillator (with oscillation stop detection function)
while the main clock oscillation circuit is not used.
I t e m
• C P U c l o c k s o u r c e
• P e r i p h e r a l f u n c t i o n c l o c k s o u r c e
• C P U a n d p e r i p h e r a l f u n c t i o n
clock can be input
• C e r a m i c r e s o n a t o r
• C r y s t a l o s c i l l a t o r
X
P r e s e n t
S t o p p e d
Externally derived
page 17 of 180
c l o c k s o u r c e s w h e n t h e
m a i n c l o c k s t o p s o s c i l l a t i n g
0 to 16 MHz
I N
, X
6
and P4
o s c i l l a t i o n c i r c u i t
O U T
M a i n c l o c k
( 1 )
7
when the on-chip oscillator clock is used for CPU clock
• CPU clock source
• Peripheral function clock source
• CPU and peripheral function
Oscillating
P r e s e n t
About 125 kHz
clock sources when the main
clock stops oscillating
(Note 1)
On-chip oscillator
6. Clock Generation Circuit