RX24U Datasheet, PDF (123/131 Pages) Renesas Technology Corp – 32-bit RXv2 CPU core

RX24U Group
5. Electrical Characteristics
Table 5.45 E2 DataFlash Characteristics (3): Middle-Speed Operating Mode
Conditions: VCC = 2.7 V to 5.5 V, AVCC0 = AVCC1 = AVCC2 = VREFH0 = VREFH1 = VREFH2 = VCC to 5.5 V,
VSS = AVSS0 = AVSS1 = AVSS2 = VREFL0 = VREFL1 = VREFL2 = 0 V,
Temperature range for the programming/erasure operation: T_a = –40 to +85°C
FCLK = 1 MHz
FCLK = 8 MHz
Item
Symbol
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Programming time
1-byte
Erasure time
1-Kbyte
8-Kbyte
Blank check time
1-byte
1-Kbyte
Erase operation forcible stop time
Data flash-module stop release time
t_Dp1
t_DE1K
t_DE8K
t_DBC1
t_DBC1K
t_DSED
t_DSTOP
—
—
—
—
—
—
0.72
135.0
1197.0
—
19.6
500.1
—
119.9
2557.4
—
—
85.0
—
—
7246.0
—
—
28.0
—
—
—
0.72
86.5
822.5
μs
8.0
264.1
ms
27.7
668.2
ms
—
50.9
μs
—
1457.5
μs
—
21.3
μs
—
—
μs
Note:
Note:
Note:
Does not include the time until each operation of the flash memory is started after instructions are executed by software.
The lower-limit frequency of FCLK is 1 MHz during programming or erasing of the flash memory. When using FCLK at below
4 MHz, the frequency can be set to 1 MHz, 2 MHz, or 3 MHz. A non-integer frequency such as 1.5 MHz cannot be set.
The frequency accuracy of FCLK should be ±3.5%.
R01DS0278EJ0100 Rev.1.00
Mar 31, 2017
Page 123 of 131