R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 202

MCU 1KB FLASH 16K ROM 32-LQFP

R5F21334CNFP#U0

Manufacturer Part Number
R5F21334CNFP#U0
Description
MCU 1KB FLASH 16K ROM 32-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/33Cr
Datasheet

Specifications of R5F21334CNFP#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
27
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 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5F21334CNFP#U0
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
R5F21334CNFP#U0R5F21334CNFP#V2
Manufacturer:
RENESAS
Quantity:
5 600
Company:
Part Number:
R5F21334CNFP#U0R5F21334CNFP#V2
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
R5F21334CNFP#U0R5F21334CNFP#X6
Manufacturer:
Renesas Electronics America
Quantity:
10 000
R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 172 of 589
14.2.7
Note:
1. The OFS2 register is allocated in the flash memory, not in the SFRs. Set appropriate values as ROM data by a
Bits WDTRCS0 and WDTRCS1
(Watchdog Timer Refresh Acknowledgement Period Set Bit)
Bit
b0
b1
b2
b3
b4
b5
b6
b7
After Reset
program.
Do not write additions to the OFS2 register. If the block including the OFS2 register is erased, the OFS2 register
is set to FFh.
When blank products are shipped, the OFS2 register is set to FFh. It is set to the written value after written by the
user.
When factory-programming products are shipped, the value of the OFS2 register is the value programmed by the
user.
For a setting example of the OFS2 register, refer to 13.3.1 Setting Example of Option Function Select Area.
Assuming that the period from when the watchdog timer starts counting until it underflows is 100%, the refresh
acknowledgement period for the watchdog timer can be selected.
For details, refer to 14.3.1.1 Refresh Acknowledgement Period.
Address 0FFDBh
Symbol
WDTUFS0 Watchdog timer underflow period set bit
WDTUFS1
WDTRCS0 Watchdog timer refresh acknowledgement period
WDTRCS1
Symbol
Option Function Select Register 2 (OFS2)
Bit
b7
set bit
Reserved bits
b6
b5
Bit Name
User Setting Value
b4
WDTRCS1 WDTRCS0 WDTUFS1 WDTUFS0
b3
(1)
b1 b0
b3 b2
Set to 1.
0 0: 03FFh
0 1: 0FFFh
1 0: 1FFFh
1 1: 3FFFh
0 0: 25%
0 1: 50%
1 0: 75%
1 1: 100%
b2
Function
b1
14. Watchdog Timer
b0
R/W
R/W
R/W
R/W
R/W
R/W

Related parts for R5F21334CNFP#U0