R5F21134DFP#U0 Renesas Electronics America, R5F21134DFP#U0 Datasheet - Page 34

• Manufacturer Part Number: R5F21134DFP#U0
• Description: IC R8C MCU FLASH 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/13r

Specifications of R5F21134DFP#U0

• Core Size: 16-Bit
• Program Memory Size: 16KB (16K x 8)
• Oscillator Type: Internal
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 22
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• No. Of I/o's: 22
• Eeprom Memory Size: 4KB
• Ram Memory Size: 1024Byte
• Cpu Speed: 20MHz
• No. Of Timers: 16
• Digital Ic Case: RoHS Compliant
• Controller Family/series: R8C/13
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

R8C/13 Group
Rev.1.20
REJ09B0111-0120
Figure 5.7 Voltage Detection Circuit Block
5.4 Voltage Detection Circuit
The voltage detection circuit monitors the input voltage at the V
program can check for voltage detection using the VC13 bit or set up the voltage detection interrupt
register to generate a hardware reset 2 or voltage detection interrupt.
Figure 5.7 shows the voltage detection circuit. Figure 5.8 shows VCR1 and VCR2 registers. Figure 5.9
shows the D4INT register. Figure 5.10 shows an operation example of the voltage detection circuit. Fig-
ure 5.11 to 5.12 show the operation example of the voltage detection circuit to get out of stop mode.
Internal
reference
voltage
V
CC
Jan 27, 2006
VC27
+
-
Noise canceller
page 21 of 205
VCR1 register
VC13 bit
b3
CC
pin with respect to Vdet. The user
5.4 Voltage Detection Circuit
Voltage detection
interrupt signal