R5F21276SNFP#U0 Renesas Electronics America, R5F21276SNFP#U0 Datasheet - Page 57
R5F21276SNFP#U0
Manufacturer Part Number
R5F21276SNFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Specifications of R5F21276SNFP#U0
Core Size
16/32-Bit
Program Memory Size
32KB (32K x 8)
Core Processor
R8C
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
25
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
32-LQFP
No. Of I/o's
25
Ram Memory Size
1.5KB
Cpu Speed
20MHz
No. Of Timers
4
Digital Ic Case Style
LQFP
Supply Voltage Range
2.2V To 5.5V
Embedded Interface Type
I2C, UART
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
Figure 6.6
Internal
reference
voltage
Voltage detection 2 circuit
Watchdog timer block
VCC
VW2C0 to VW2C3, VW2F0, VW2F1, VW2C6, VW2C7: Bits in VW2C register
VCA13: Bit in VCA1 register
VCA27: Bit in VCA2 register
VCA27
+
-
(Filter width: 200 ns)
Sep 26, 2008
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 38 of 453
fOCO-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 a program.
VW2C3
1/2
1/2
VW2F1 to VW2F0
1/2
VW2C7
= 00b
= 01b
= 10b
= 11b
VW2C1
Digital
filter
VW2C2 bit is set to 0 (not detected) by
writing 0 by a program.
When VCA27 bit is set to 0 (voltage
detection 2 circuit disabled), VW2C2
bit is set to 0
VW2C1
VW2C0
VW2C6
VW2C2
6. Voltage Detection Circuit
Voltage monitor 2
interrupt signal
Oscillation stop
timer interrupt
interrupt signal
Watchdog
detection
signal
Voltage monitor 2
reset signal
Non-maskable
interrupt signal
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