Memories and memory interfaces
• 0.25 for 8-bit writes to FlexRAM
• 0.50 for 16-bit or 32-bit writes to FlexRAM
• nnvmcycd — data flash cycling endurance
Figure 5. EEPROM backup writes to FlexRAM
6.4.2 EzPort Switching Specifications
All timing is shown with respect to a maximum pin load of 50 pF and input signal
transitions of 3 ns.
Table 20. EzPort switching specifications
Num
Description
Min.
2.7
—
Max.
3.6
Unit
V
Operating voltage
EP1
EZP_CK frequency of operation (all commands except
READ)
fSYS/2
MHz
EP1a
EP2
EZP_CK frequency of operation (READ command)
EZP_CS negation to next EZP_CS assertion
—
fSYS/8
—
MHz
ns
2 x tEZP_CK
Table continues on the next page...
MCF51JU128 Data Sheet, Rev. 4, 01/2012.
Freescale Semiconductor, Inc.
31
FREESCALE [ Freescale ]
