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参数资料
| 型号： | R5F21244SDXXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52 |
| 封装： | 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52 |
| 文件页数： | 22/59页 |
| 文件大小： | 528K |
| 代理商： | R5F21244SDXXXFP |
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R8C/24 Group, R8C/25 Group
5. Electrical Characteristics
Rev.3.00
Feb 29, 2008
Page 29 of 51
REJ03B0117-0300
NOTES:
1.
VCC = 2.7 to 5.5 V at Topr = -20 to 85
°C (N version) / -40 to 85°C (D version), unless otherwise specified.
2.
Definition of programming/erasure endurance
The programming and erasure endurance is defined on a per-block basis.
If the programming and erasure endurance is n (n = 100 or 10,000), each block can be erased n times. For example, if 1,024
1-byte writes are performed to 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).
3.
Endurance to guarantee all electrical characteristics after program and erase. (1 to Min. value can be guaranteed).
4.
Standard of block A and block B when program and erase endurance exceeds 1,000 times. Byte program time to 1,000 times
is the same as that in program ROM.
5.
In a system that executes multiple programming operations, the actual erasure count can be reduced by writing to sequential
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. It is also advisable to retain data on the erase count of each block and limit the
number of erase operations to a certain number.
6.
If an error occurs during block erase, attempt to execute the clear status register command, then execute the block erase
command at least three times until the erase error does not occur.
7.
Customers desiring program/erase failure rate information should contact their Renesas technical support representative.
8.
-40
°C for D version.
9.
The data hold time includes time that the power supply is off or the clock is not supplied.
Table 5.5
Flash Memory (Data flash Block A, Block B) Electrical Characteristics(4)
Symbol
Parameter
Conditions
Standard
Unit
Min.
Typ.
Max.
Program/erase endurance(2)
10,000(3)
times
Byte program time
(program/erase endurance
≤ 1,000 times)
50
400
s
Byte program time
(program/erase endurance
> 1,000 times)
65
s
Block erase time
(program/erase endurance
≤ 1,000 times)
0.2
9
s
Block erase time
(program/erase endurance
> 1,000 times)
0.3
s
td(SR-SUS)
Time delay from suspend request until
suspend
97+CPU clock
× 6 cycles
s
Interval from erase start/restart until
following suspend request
650
s
Interval from program start/restart until
following suspend request
0
ns
Time from suspend until program/erase
restart
3+CPU clock
× 4 cycles
s
Program, erase voltage
2.7
5.5
V
Read voltage
2.2
5.5
V
Program, erase temperature
-20(8)
85
°C
Data hold time(9)
Ambient temperature = 55
°C20
year
相关PDF资料 |
PDF描述 |
|---|---|
| R5F21244SNXXXLG | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PBGA64 |
| R5F21258SDXXXFP | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52 |
| R5F21246SDXXXFP | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52 |
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| R5F21244SNFP | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| R5F21244SDXXXLG | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU |
| R5F21244SNFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU |
| R5F21244SNFP#U0 | 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 16KB Flash 3.3V/5V 52-Pin LQFP Tray 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 16KB FLASH 52LQFP |
| R5F21244SNFP#V0 | 功能描述:IC R8C MCU FLASH 16K 52LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/24 标准包装:96 系列:PIC® 16F 核心处理器:PIC 芯体尺寸:8-位 速度:20MHz 连通性:I²C，SPI 外围设备:欠压检测/复位，POR，PWM，WDT 输入/输出数:11 程序存储器容量:3.5KB（2K x 14） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:128 x 8 电压 - 电源 (Vcc/Vdd):2.3 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 包装:管件 |
| R5F21244SNFP#V2 | 制造商:Renesas Electronics Corporation 功能描述:MCU 3/5V 16K PB-FREE 52-LQFP 制造商:Renesas Electronics Corporation 功能描述:MCU 3/5V 16K PB-FREE 52-LQFP - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 16KB FLASH 52LQFP |
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