R5F21274SDFP#U0 Renesas Electronics America, R5F21274SDFP#U0 Datasheet - Page 54

IC R8C/27 MCU FLASH 32LQFP

R5F21274SDFP#U0

Manufacturer Part Number
R5F21274SDFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Datasheet

Specifications of R5F21274SDFP#U0

Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
25
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 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
For Use With
R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
Figure 6.1
Table 6.2
VCC Monitor
Process
When Voltage
is Detected
Digital Filter
VCC
Sep 26, 2008
Item
Specifications of Voltage Detection Circuit (J, K Version)
Voltage to monitor
Detection target
Monitor
Reset
Interrupt
Switch
enabled/disabled
Sampling time
Block Diagram of Voltage Detection Circuit (N, D version)
Internal
reference
voltage
Page 35 of 453
Vdet1
Whether passing through Vdet1
by rising or falling
None
Reset at Vdet1 > VCC;
restart CPU operation at VCC >
Vdet1
None
Available
(Divide-by-n of fOCO-S) × 4
n: 1, 2, 4, and 8
Voltage monitor 1 reset
VCA27
VCA26
VCA25
+
+
+
-
-
-
≥ Vdet2
≥ Vdet1
≥ Vdet0
Voltage Detection 1
Noise
Noise
filter
filter
Voltage monitor 2 interrupt
Vdet2
Passing through Vdet2 by rising or falling
VCA13 bit in VCA1 register
Whether VCC is higher or lower than Vdet2
Voltage monitor 2 reset
Reset at Vdet2 > VCC; restart CPU operation
after a specified time
Interrupt request at Vdet2 > VCC and VCC >
Vdet2 when digital filter is enabled;
interrupt request at Vdet2 > VCC or VCC >
Vdet2 when digital filter is disabled
Available
(Divide-by-n of fOCO-S) × 4
n: 1, 2, 4, and 8
Voltage Detection 2
6. Voltage Detection Circuit
VW1C register
VCA1 register
Voltage detection 2
signal
Voltage detection 1
signal
Voltage detection 0
signal
VW1C3 bit
VCA13 bit
b3
b3

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