English
Language : 

RX21A_15 Datasheet, PDF (122/132 Pages) Renesas Technology Corp – Renesas MCUs
◁
RX21A Group
5.13 E2 DataFlash Characteristics
5. Electrical Characteristics
Table 5.50 E2 DataFlash Characteristics (1)
Item
Symbol
Min.
Typ.
Max.
Unit
Test Conditions
Reprogramming/erasure cycle*1
NDPEC
100000
—
Data hold time
After 100000
tDRP
30*2
—
times of NDPEC
—
Times
—
Year
Ta = +85°C
Note 1. The reprogram/erase cycle is the number of erasing for each block. When the reprogram/erase cycle is n times (n = 100000),
erasing can be performed n times for each block. For instance, when 8-byte programming is performed 16 times for different
addresses in 128-byte block and then the entire block is erased, the reprogram/erase cycle is counted as one. However,
programming the same address for several times as one erasing is not enabled (overwriting is prohibited).
Note 2. This result is obtained from reliability testing.
Table 5.51 E2 DataFlash Characteristics (2)
: high-speed operating mode, medium-speed operating modes 1A and 2A
Conditions: VCC = AVCC0 = AVCCA = 2.7 to 3.6 V, VSS = AVSS0 = AVSSA = VREFL = VREFL0 = VREFDSL = 0 V
Temperature range for the programming/erasure operation: Ta = –40 to +105°C
FCLK = 4 MHz
FCLK = 25 MHz
Item
Symbol
Unit
Min.
Typ. Max.
Min.
Typ. Max.
Programming time
2 bytes
tDP2
when NDPEC ≤ 100 times
8 bytes
tDP8
—
0.19
4.4
—
0.24
5.1
—
0.13
2.1
ms
—
0.14
2.3
Programming time
2 bytes
tDP2
when NDPEC > 100 times
8 bytes
tDP8
—
0.25
6.4
—
0.32
7.5
—
0.17
3.1
ms
—
0.18
3.4
Erasure time
128 bytes
tDE128
—
when NDPEC ≤ 100 times
3.3
27.1
—
2.5
8.8
ms
Erasure time
128 bytes
tDE128
—
when NDPEC > 100 times
4.0
45.1
—
3.1
13.3
ms
Blank check time
2 bytes
tDBC2
—
—
98
—
—
38
μs
2 Kbytes
tDBC2K
—
—
16
—
—
3.0
ms
Suspend delay time during programming
tDSPD
—
(in programming/erasure priority mode)
—
0.9
—
—
0.804 ms
First suspend delay time during
tDSPSD1
—
programming (in suspend priority mode)
—
220
—
—
124
μs
Second suspend delay time during
tDSPSD2
—
programming (in suspend priority mode)
—
0.9
—
—
0.804 ms
Suspend delay time during erasing
tDSED
—
(in programming/erasure priority mode)
—
0.9
—
—
0.804 ms
First suspend delay time during erasing
tDSESD1
—
(in suspend priority mode)
—
220
—
—
124
μs
Second suspend delay time during erasing tDSESD2
—
(in suspend priority mode)
—
0.9
—
—
0.804 ms
R01DS0129EJ0110 Rev.1.10
Aug 28, 2014
Page 122 of 132
 ▷