Datasheet

RX610 Group 5. Electrical Characteristics
R01DS0097EJ0120 Rev.1.20 Page 79 of 84
Feb 20, 2013
5.6 ROM (Flash Memory for Code Storage) Characteristics
Table 5.11 ROM (Flash Memory for Code Storage) Characteristics
Conditions: V
CC
= PLLV
CC
= AV
CC
= 3.0 to 3.6 V, V
REFH
= 3.0 V to AV
CC
, V
SS
= PLLV
SS
= V
REFL
= 0 V
Operating temperature range during programming/erasing:
T
a
= -20 to +85°C (regular specifications), T
a
= -40 to +85°C (wide-range specifications)
Item
Symbol
Min.
Typ.
Max.
Unit
Test Conditions
Programming time 256 bytes t
P256
 2 12 ms
PCLK = 50 MHz
N
PEC
≤ 100
8 Kbytes t
P8K
 45 100 ms
256 bytes t
P256
 2.4 14.4 ms
PCLK = 50 MHz
N
PEC
> 100
8 Kbytes t
P8K
 54 120 ms
Erasure time 8 Kbytes t
E8K
 50 120 ms
PCLK = 50 MHz
N
PEC
≤ 100
64 Kbytes t
E64K
 400 875 ms
128 Kbytes t
E128K
 800 1750 ms
8 Kbytes t
E8K
 60 144 ms
PCLK = 50 MHz
N
PEC
> 100
64 Kbytes t
E64K
 480 1050 ms
128 Kbytes t
E128K
 960 2100 ms
Rewrite/erase cycle*
1
N
PEC
1000*
2
  Times
Suspend delay time during writing t
SPD
  120 µs
Figure 5.29
PCLK = 50 MHz
First suspend delay time during erasing (in
suspend priority mode)
t
SESD1
  120 µs
Second suspend delay time during erasing (in
suspend priority mode)
t
SESD2
  1.7 ms
Suspend delay time during erasing (in erasure
priority mode)
t
SEED
  1.7 ms
Data hold time*
3
T
DRP
10   Year
Notes: 1. Definition of rewrite/erase cycle:
The rewrite/erase cycle is the number of erasing for each block. When the rewrite/erase cycle is n times (n = 1000), erasing
can be performed n times for each block. For instance, when 256-byte writing is performed 32 times for different addresses in
8-Kbyte block and then the entire block is erased, the rewrite/erase cycle is counted as one. However, writing to the same
address for several times as one erasing is not enabled (over writing is prohibited).
2. This indicates the minimum number that guarantees the characteristics after rewriting. (The guaranteed value is in the range
from one to the minimum number.)
3. This indicates the characteristic when rewrite is performed within the specification range including the minimum number.