SC9S12XS256J1MAA FREESCALE [Freescale Semiconductor, Inc], SC9S12XS256J1MAA Datasheet - Page 678
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SC9S12XS256J1MAA
Manufacturer Part Number
SC9S12XS256J1MAA
Description
HCS12 Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.SC9S12XS256J1MAA.pdf
(736 pages)
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Electrical Characteristics
A.3.1.4
The maximum read once time is given by
A.3.1.5
The programming time for a single phrase of four P-Flash words + associated eight ECC bits is dependant
on the bus frequency as a well as on the frequency f
following formulas.
The typical phrase programming time can be calculated using the following equation
The maximum phrase programming time can be calculated using the following equation
A.3.1.6
The maximum P-Flash Program Once time is given by
A.3.1.7
Erasing all blocks takes:
678
t bwpgm 162
t mass 100100
≈
t
≈
=
Read Once (FCMD=0x04)
Program P-Flash (FCMD=0x06)
P-Flash Program Once (FCMD=0x07)
Erase All Blocks (FCMD=0x08)
(
400
⋅
)
------------------------ -
f NVMOP
⋅
⋅
-------------------- -
f
------------------------ -
f NVMOP
NVMBUS
1
1
1
t bwpgm
t bwpgm
+
+
2400
S12XS Family Reference Manual, Rev. 1.09
35000
=
=
⋅
128
130
--------------------------- -
f NVMBUS
⋅
--------------------------- -
f
NVMBUS
⋅
⋅
1
-------------------------
f NVMOP
-------------------------
f NVMOP
1
1
1
NVMOP
+
+
1725
2125
and can be calculated according to the
⋅
⋅
---------------------------- -
f NVMBUS
---------------------------- -
f NVMBUS
1
1
Freescale Semiconductor
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