R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 42

• Manufacturer Part Number: R5F21162SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/16r

Specifications of R5F21162SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 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: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/16 Group, R8C/17 Group
Rev.2.10
REJ09B0169-0210
Figure 6.3
Internal
Reference
voltage
Voltage Detection 2 Circuit
Watchdog Timer Block
VCC
VW2C0 to VW2C3, VW2F2, VW2F1, VW2C6, VW2C7: Bits in VW2C register
VCA13: Bit in VCA1 register
VCA27: Bit in VCA2 register
VCA27
+
-
Jan 19, 2006
(Filter Width: 200ns)
Noise Filter
Block Diagram of Voltage Monitor 2 Interrupt / Reset Generation Circuit
Watchdog Timer
Underflow Signal
Voltage detection 2 signal
is held “H” when VCA27 bit
is set to “0” (disabled)
Page 27 of 254
fRING-S
Voltage
Detection
2 signal
VCA13
Voltage Monitor 2 Interrupt / Reset Generation Circuit
This bit is set to “0” (not detected) by writing
“0” by program.
VW2C3
1/2
1/2
VW2C7
VW2F1 to VW2F0
1/2
VW2C1
=00b
=01b
=10b
=11b
Digital
Filter
VW2C2 bit is set to “0” (not detected)
by writing “0” by program.
When VCA27 bit is set to “0” (voltage
detection 2 circuit disabled), VW2C2
bit is set to “0”
VW2C0
VW2C6
VW2C2
6. Voltage Detection Circuit
Timer Interrupt
Oscillation Stop
Voltage Monitor 2
Interrupt Signal
Interrupt Signal
Watchdog
Detection
Signal
Non-Maskable
Interrupt Signal
Voltage
Monitor 2
Reset
Signal