Appendix A Electrical Characteristics
MC9S12XE-Family Reference Manual , Rev. 1.21
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Freescale Semiconductor
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A.3.1.24
EEE Copy Down
The typical EEE copy down time is given by the following equation
The maximum EEE copy down time is given by the following equation
Worst case for Enable EEPROM Emulation allows for all the EEE records to have to be copied which is a
very low probability scenario only likely in the case that the EEE is mostly full of unchanging data (the
records for which are stored in consecutive D-Flash sectors).
Table A-19. NVM Timing Characteristics
Conditions are as shown in Table A-4, with fNVMBUS = 50MHz and fNVMOP= 1MHz unless otherwise noted. Num
C
Rating
Symbol
Min
Typ
Max
Unit
1
D External oscillator clock
fNVMOSC
2—
501
1 Restrictions for oscillator in crystal mode apply.
MHz
2
D Bus frequency for programming or erase operations
fNVMBUS
1
—
50
MHz
3
D Operating frequency
fNVMOP
800
—
1050
kHz
4
D P-Flash phrase programming
tbwpgm
—
162
173
s
5a
D P- Flash phrase program time using D-LOAD on 4 blocks
tbwpgm4
—
231
264
s
5b
D P-Flash phrase program time using D-LOAD on 3 blocks
tbwpgm3
—
208
233
s
5c
D P-Flash phrase program time using D-LOAD on 2 blocks
tbwpgm2
—
185
202
s
6
P P-Flash sector erase time
tera
—20
21
ms
7
P Erase All Blocks (Mass erase) time
tmass
—
101
102
ms
7a
D Unsecure Flash
tuns
—
101
102
ms
8
D P-Flash erase verify (blank check) time2
2 Valid for both “Erase verify all” or “Erase verify block” on 256K block without failing locations
tcheck
—
tcyc
9a
D D-Flash word programming one word
tdpgm
—88
95
s
9b
D D-Flash word programming two words
tdpgm
—
153
165
s
9c
D D-Flash word programming three words
tdpgm
—
212
230
s
9d
D D-Flash word programming four words
tdpgm
—
282
316
s
9e
D D-Flash word programming four words crossing row
boundary
tdpgm
—
298
342
s
10
D D-Flash sector erase time
teradf
—
5.23
3 This is a typical value for a new device
21
ms
11
D D-Flash erase verify (blank check) time
tcheck
—
17500
tcyc
12
D EEE copy down (mask sets 5M48H, 3M25J, 2M53J)
tdfrcd
—
255000
2750004
4 Maximum partitioning
tcyc
12
D EEE copy down (other mask sets)
tdfrcd
—
205000
2250005
5 Maximum partitioning
tcyc
t
dfcd
14000
316 ERPART
()
1500
124
DFPART
–
()
()
++
()
1
f
NVMBUS
----------------------
×
=
t
dfcd
34000
316 ERPART
()
1500
124
DFPART
–
()
()
++
()
1
f
NVMBUS
----------------------
×
=