R5F21294SNSP#U0 Renesas Electronics America, R5F21294SNSP#U0 Datasheet - Page 48

• Manufacturer Part Number: R5F21294SNSP#U0
• Description: MCU 3/5V 16K+2K 20PIN-SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/29r

Specifications of R5F21294SNSP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/28 Group, R8C/29 Group
Rev.2.10
REJ09B0279-0210
Figure 5.9
Internal reset
External
power V
NOTES:
4.7 kΩ
(reference)
(“L” valid)
1. When using the voltage monitor 1 digital filter, ensure VCC is 2.0 V or higher during the sampling time.
2. The sampling clock can be selected. Refer to 6. Voltage Detection Circuit for details.
3. Vdet1 indicates the voltage detection level of the voltage detection 1 circuit. Refer to 6. Voltage Detection
4. Refer to 20. Electrical Characteristics.
5. To use the power-on reset function, enable voltage monitor 1 reset by setting the LVD1ON bit in the OFS
V
signal
V
det1
Circuit for details.
register to 0, the VW1C0 and VW1C6 bits in the VW1C register to 1 respectively, and the VCA26 bit in the
VCA2 register to 1.
Sep 26, 2008
CC
por1
(3)
Example of Power-On Reset Circuit and Operation (J, K version)
VCC
RESET
t
w(por1)
Page 29 of 441
t
rth
f
OCO-S
1
× 32
Sampling time
t
d(Vdet1-A)
(1, 2)
2.0 V
t
rth
f
OCO-S
1
V
por2
× 32
V
det1
5. Resets
(3)