Datasheet

Appendix A Electrical Characteristics
MC9S12XE-Family Reference Manual Rev. 1.25
1230 Freescale Semiconductor
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 f
NVMBUS
= 50MHz and f
NVMOP
= 1MHz unless otherwise noted.
Num C Rating Symbol Min Typ Max Unit
1 D External oscillator clock f
NVMOSC
2—50
(1)
1. Restrictions for oscillator in crystal mode apply.
MHz
2 D Bus frequency for programming or erase operations f
NVMBUS
1 — 50 MHz
3 D Operating frequency f
NVMOP
800 — 1050 kHz
4 D P-Flash phrase programming t
bwpgm
— 162 173 µs
5a D P- Flash phrase program time using D-LOAD on 4 blocks t
bwpgm4
— 231 264 µs
5b D P-Flash phrase program time using D-LOAD on 3 blocks t
bwpgm3
— 208 233 µs
5c D P-Flash phrase program time using D-LOAD on 2 blocks t
bwpgm2
— 185 202 µs
6 P P-Flash sector erase time t
era
—2021ms
7 P Erase All Blocks (Mass erase) time t
mass
— 101 102 ms
7a D Unsecure Flash t
uns
— 101 102 ms
8 D P-Flash erase verify (blank check) time
(2)
2. Valid for both “Erase verify all” or “Erase verify block” on 256K block without failing locations
t
check
— — 33500
2
t
cyc
9a D D-Flash word programming one word t
dpgm
—8895µs
9b D D-Flash word programming two words t
dpgm
— 153 165 µs
9c D D-Flash word programming three words t
dpgm
— 212 230 µs
9d D D-Flash word programming four words t
dpgm
— 282 316 µs
9e D D-Flash word programming four words crossing row
boundary
t
dpgm
— 298 342 µs
10 D D-Flash sector erase time t
eradf
— 5.2
(3)
3. This is a typical value for a new device
21 ms
11 D D-Flash erase verify (blank check) time t
check
— — 17500 t
cyc
12 D EEE copy down (mask sets 5M48H, 3M25J, 2M53J,
1M12S, 1N35H, 1N36H)
t
dfrcd
— 255000 275000
(4)
4. Maximum partitioning
t
cyc
12 D EEE copy down (other mask sets) t
dfrcd
— 205000 225000
(5)
t
cyc
t
dfcd
14000 316 ERPART⋅()1500 124 DFPART–()⋅()++()
1
f
NVMBUS
----------------------
×=
t
dfcd
34000 316 ERPART⋅()1500 124 DFPART–()⋅()++()
1
f
NVMBUS
----------------------
×=