R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 595
R5F21324CNSP#U0
Manufacturer Part Number
R5F21324CNSP#U0
Description
MCU 1KB FLASH 16K ROM 20-LSSOP
Manufacturer
Renesas Electronics America
Series
R8C/3x/32Cr
Datasheet
1.R5F21321CDSPU0.pdf
(605 pages)
Specifications of R5F21324CNSP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, PWM, Voltage Detect, WDT
Number Of I /o
15
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
20-LSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- Current page: 595 of 605
- Download datasheet (6Mb)
R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 566 of 573
32.17 Notes on Noise
32.17.1 Inserting a Bypass Capacitor between VCC and VSS Pins as a Countermeasure
32.17.2 Countermeasures against Noise Error of Port Control Registers
Connect a bypass capacitor (at least 0.1 µF) using the shortest and thickest wire possible.
During rigorous noise testing or the like, external noise (mainly power supply system noise) can exceed the
capacity of the MCU’s internal noise control circuitry. In such cases the contents of the port related registers
may be changed.
As a firmware countermeasure, it is recommended that the port registers, port direction registers, and pull-up
control registers be reset periodically. However, examine the control processing fully before introducing the
reset routine as conflicts may be created between the reset routine and interrupt routines.
against Noise and Latch-up
32. Usage Notes
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