R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 120

• Manufacturer Part Number: R5F21324ANSP#U1
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Ar

Specifications of R5F21324ANSP#U1

• 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: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Under development
R8C/32A Group
REJ09B0458-0020 Rev.0.20
Page 90 of 583
Figure 9.1
XIN/XCIN
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
Interrupt request
Power-on reset
Software reset
CM05
CM03
RESET
CM13
CM01
WAIT instruction
CM01 = 0
CM04
CM10 = 1 (stop mode)
Oscillation Stop Detection Circuit
Clock Generation Circuit (With XIN and XCIN Pins Shared)
Preliminary specification
Specifications in this manual are tentative and subject to change.
CM30
Stop signal
XIN clock
XOUT/XCOUT
XCIN clock
Pulse generation circuit
for clock edge detection
and charge/discharge
control
XIN clock
R
R
S Q
S Q
Nov 05, 2008
CSPRO
CM14
CM02
FRA00
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
OCD1
b
CM06 = 0
CM17 to CM16 = 00b
fC
CM07 = 0
CM07 = 1
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
d
CM14 bit switch signal
b
CM06 = 0
CM17 to
CM16 = 10b
c
Divider
d
1/2
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