MC9S08MM128 Datasheet, PDF (41/50 Pages) Freescale Semiconductor, Inc – Advanced Information

Preliminary Electrical Characteristics
2.13 Flash Specifications
This section provides details about program/erase times and program-erase endurance for the Flash memory.
Program and erase operations do not require any special power sources other than the normal V_DD supply. For more detailed
information about program/erase operations, see the Memory chapter in the Reference Manual for this device
(MC9S08MM128RM).
Table 22. Flash Characteristics
#
Characteristic
Symbol
Min
Typical
Max
Unit
C
1
Supply voltage for program/erase
-40°C to 105°C
V_prog/erase
1.8
—
3.6
V
D
2 Supply voltage for read operation
3 Internal FCLK frequency¹
V_Read
1.8
—
3.6
V
D
f_FCLK
150
—
200
kHz
D
4 Internal FCLK period (1/FCLK)
5 Byte program time (random location)²
6 Byte program time (burst mode)²
7 Page erase time²
8 Mass erase time²
Program/erase endurance³
9
T_L to T_H = –40°C to + 105°C
T = 25°C
t_Fcyc
t_prog
t_Burst
t_Page
t_Mass
5
—
6.67
9
4
4000
20,000
10,000
—
—
—
100,000
—
μs
D
t_Fcyc
P
t_Fcyc
P
t_Fcyc
P
t_Fcyc
P
cycles
C
10 Data retention⁴
t_{D_ret}
15
100
—
years
C
1 _{The frequency of this clock is controlled by a software setting.}
2 _{These values are hardware state machine controlled. User code does not need to count cycles. This information supplied for}
calculating approximate time to program and erase.
3 _{Typical endurance for flash was evaluated for this product family on the HC9S12Dx64. For additional information on how}
Freescale defines typical endurance, please refer to Engineering Bulletin EB619, Typical Endurance for Nonvolatile Memory.
4 _{Typical data retention values are based on intrinsic capability of the technology measured at high temperature and de-rated to}
25°C using the Arrhenius equation. For additional information on how Freescale defines typical data retention, please refer to
Engineering Bulletin EB618, Typical Data Retention for Nonvolatile Memory.
Freescale Semiconductor
41
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Preliminary — Subject to Change