R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 148
R5F21346CNFP#U0
Manufacturer Part Number
R5F21346CNFP#U0
Description
MCU 1KB FLASH 32K ROM 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/34Cr
Datasheet
1.R5F21346CNFPU0.pdf
(759 pages)
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
-
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R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 115 of 723
Figure 9.1
Voltage monitor 0 reset
CM02, CM03, CM04, CM05, CM06, CM07: Bits in CM0 register
CM10, CM13, CM14, CM16, CM17: Bits in CM1 register
CM30: Bit in CM3 register
OCD0, OCD1, OCD2: Bits in OCD register
FRA00, FRA01, FRA03: Bits in FRA0 register
CSPRO: Bit in CSPR register
Interrupt request
Power-on reset
Software reset
RESET
CM03
CM05
WAIT instruction
Oscillation Stop Detection Circuit
CM10 = 1 (stop mode)
XCIN
XIN
Clock Generation Circuit
CM30
XIN clock
CM04
CM13
CM04
CM13
Pulse generation circuit
for clock edge detection
and charge/discharge
control
XCOUT
XOUT
S Q
R
S Q
R
CSPRO
FRA00
CM14
CM02
Low-speed on-chip oscillator
Frequency adjustable
XIN clock
Forcible discharge when OCD0 = 0
for watchdog timer
Charge/discharge
circuit
FRA1 register, FRA3 register
a
Oscillation stop detection
on-chip oscillator
on-chip oscillator
fC
High-speed
Low-speed
CM07 = 0
CM07 = 1
OCD1
b
CM06 = 0
CM17 to CM16 = 00b
fC
FRA01 = 1
FRA01 = 0
1/2
System clock
OCD2 = 1
fOCO-S
Divider
OCD2 = 0
c
1/2
FRA2 register
CM06 = 0
CM17 to CM16 = 01b
Oscillation stop detection
Interrupt generation circuit
fOCO (On-chip oscillator clock)
FRA03 = 1
FRA03 = 0
1/2
Voltage monitor 1 interrupt
Voltage monitor 2 interrupt
Watchdog timer interrupt
a
1/2
OCD2 bit switch signal
CM14 bit switch signal
d
b
CM06 = 0
CM17 to
CM16 = 10b
c
Divider
1/2
d
Divider
(1/128)
Power-on reset circuit
Voltage detection circuit
e
1/8
g
h
e
CM06 = 1
1/2
9. Clock Generation Circuit
CM06 = 0
CM17 to CM16 = 11b
Oscillation stop detection,
Watchdog timer,
Voltage monitor 1 interrupt,
Voltage monitor 2 interrupt
fOCO-WDT
fC
fC2
fC4
fC32
fOCO40M
fOCO-F
fOCO
fOCO128
fOCO-S
f1
f2
f4
f8
f32
CPU clock
1/2
h
Detail of divider
g
Peripheral
function
clock
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