R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 546
R5F21334CNFP#U0
Manufacturer Part Number
R5F21334CNFP#U0
Description
MCU 1KB FLASH 16K ROM 32-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/33Cr
Datasheet
1.R5F21331CNFPU0.pdf
(622 pages)
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
Part Number:
R5F21334CNFP#U0R5F21334CNFP#V2
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 516 of 589
Figure 30.14
30.4.11.6 Read Lock Bit Status Command
This command is used to read the lock bit status of any address in the program ROM area.
When 71h written in the first bus cycle and D0h is written in the second cycle to the starting block address, the
lock bit status of the specified block is stored in the LBDATA bit in the FST register. After the FST7 bit in the
FST register has been set to 1 (ready), read the LBDATA bit.
Figure 30.14 shows a Read Lock Bit Status Flowchart.
Read Lock Bit Status Flowchart
Write the command code 71h
Write D0h to the starting
block address
Full status check
Completed
FST7 = 1?
Start
Yes
No
FST7: Bit in FST register
30. Flash Memory
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