R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 700
R5F21346CNFP#U0
Manufacturer Part Number
R5F21346CNFP#U0
Description
MCU 1KB FLASH 32K ROM 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/34Cr
Datasheet
1.R5F21346CNFPU0.pdf
(759 pages)
Specifications of R5F21346CNFP#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
43
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2.5K 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
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 667 of 723
Figure 33.2
Table 33.7
Notes:
−
−
−
−
−
t
−
−
t
READY)
−
−
−
−
d(SR-SUS)
d(CMDRST-
Symbol
1. V
2. Definition of programming/erasure endurance
3. Endurance to guarantee all electrical characteristics after program and erase. (1 to Min. value can be guaranteed).
4. In a system that executes multiple programming operations, the actual erasure count can be reduced by writing to sequential
5. If an error occurs during block erase, attempt to execute the clear status register command, then execute the block erase
6. Customers desiring program/erase failure rate information should contact their Renesas technical support representative.
7. − 40 ° C for D version.
8.
The programming and erasure endurance is defined on a per-block basis.
If the programming and erasure endurance is n (n = 10,000), each block can be erased n times. For example, if 1,024 1-byte
writes are performed to different addresses in block A, a 1 Kbyte block, and then the block is erased, the
programming/erasure endurance still stands at one.
However, the same address must not be programmed more than once per erase operation (overwriting prohibited).
addresses in turn so that as much of the block as possible is used up before performing an erase operation. For example,
when programming groups of 16 bytes, the effective number of rewrites can be minimized by programming up to 128 groups
before erasing them all in one operation. In addition, averaging the erasure endurance between blocks A to D can further
reduce the actual erasure endurance. It is also advisable to retain data on the erasure endurance of each block and limit the
number of erase operations to a certain number.
command at least three times until the erase error does not occur.
The data hold time includes time that the power supply is off or the clock is not supplied.
CC
= 2.7 to 5.5 V and T
Suspend request
FST6, FST7: Bit in FST register
FMR21: Bit in FMR2 register
Program/erase endurance
Byte program time
(program/erase endurance ≤ 1,000 times)
Byte program time
(program/erase endurance > 1,000 times)
Block erase time
(program/erase endurance ≤ 1,000 times)
Block erase time
(program/erase endurance > 1,000 times)
Time delay from suspend request until
suspend
Interval from erase start/restart until
following suspend request
Time from suspend until erase restart
Time from when command is forcibly
stopped until reading is enabled
Program, erase voltage
Read voltage
Program, erase temperature
Data hold time
Flash Memory (Data flash Block A to Block D) Electrical Characteristics
Time delay until Suspend
(FMR21 bit)
FST7 bit
FST6 bit
(8)
Parameter
opr
= − 20 to 85 ° C (N version) / − 40 to 85 ° C (D version), unless otherwise specified.
(2)
Ambient temperature = 55 ° C
Fixed time
Conditions
t
d(SR-SUS)
Clock-dependent
time
10,000
− 20
Min.
2.7
1.8
20
−
−
−
−
−
0
−
−
(7)
(3)
Access restart
33. Electrical Characteristics
Standard
Typ.
160
300
0.2
0.3
−
−
−
−
−
−
−
−
−
30+CPU clock
30+CPU clock
5+CPU clock
× 3 cycles
× 1 cycle
× 1 cycle
1,500
1,500
Max.
5.5
5.5
85
−
1
1
−
−
times
year
Unit
ms
µ s
µ s
µ s
µ s
µ s
° C
V
V
s
s
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