R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 63

• Manufacturer Part Number: R5F211B1SP#U0
• Description: IC R8C MCU FLASH 4K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/1Br

Specifications of R5F211B1SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K5211B4S001BE - KIT STARTER FOR R8C/18191A1BR0K5211B4S000BE - KIT DEV EVALUATION R8C/1BR0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
Figure 7.1
Figure 7.2
VCC
Internal
reference
voltage
Voltage detection 1 circuit
VCC
VW1C0 to VW1C1, VW1F0 to VW1F1, VW1C6, VW1C7: Bits in VW1C register
VCA26: Bit in VCA2 register
Dec 08, 2006
VCA26
+
-
Block Diagram of Voltage Monitor 1 Reset Generation Circuit
Block Diagram of Voltage Detection Circuit
Internal
reference
voltage
Voltage detection 1
signal is held “H” when
VCA26 bit is set to 0
(disabled).
Page 45 of 315
fRING-S
Voltage
detection 1
signal
VCA27
VCA26
Voltage monitor 1 reset generation circuit
+
+
-
-
≥ Vdet2
≥ Vdet1
1/2
1/2
VW1C7
VW1F1 to VW1F0
1/2
VW1C1
= 00b
= 01b
= 10b
= 11b
Noise filter
Digital
filter
VW1C0
VW1C6
7. Voltage Detection Circuit
VCA1 register
Voltage detection 2
signal
Voltage detection 1
signal
VCA13 bit
b3
Voltage
monitor 1
reset
signal