MPC5643L datasheet(77/98 Pages) FREESCALE

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Electrical characteristics

MPC5643L Microcontroller Data Sheet, Rev. 3

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

3.15

Flash memory electrical characteristics

Table 26. Flash program and erase electrical specifications

No.

Symbol

Parameter

Min

Typ1

NOTES:

1 Typical program and erase times assume nominal supply values and operation at T

J =25 °C. These values are

characterized, but not tested.

Factory

Avg2

2 Factory Average program and erase times represent the effective performance averaged over > 1024 pages or blocks,

and are provided for factory throughput estimation assuming < 100 program/erase cycles, nominal supply values and

operation at TJ =25 °C. These values are characterized, but not tested.

Initial

Max3

3 Initial Max program and erase times provide guidance for time-out limits used in the factory and apply for < 100

program/erase cycles, nominal supply values and operation at TJ =25 °C. These values are verified at production test.

Lifetime

Max4

4 Lifetime Max program and erase times apply across the voltage, temperature, and cycling range of product life. These

values are characterized, but not tested.

Unit

1TDWPROGRAM *

5 See Notes for individual specifications, as shown in column headings.

Double word (64 bits) program time6

6 Actual hardware programming times. These do not include software overhead.

—

500

µs

2TPPROGRAM *

5 Page(128 bits) program time6

—

100

500

µs

3T16KPPERASE *

5 16 KB block pre-program and erase time

—

TBD

500

5000

4T48KPPERASE *

5 48 KB block pre-program and erase time

—

TBD

750

5000

5T64KPPERASE *

5 64 KB block pre-program and erase time

—

TBD

900

5000

6T128KPPERASE *

5 128 KB block pre-program and erase time

—

TBD

1300

7500

7T256KPPERASE *

5 256 KB block pre-program and erase time

—

TBD

2600

15000

Table 27. Flash module life

No.

Symbol

Parameter

Value

Unit

Min

Typ

Max

1P/E

Number of program/erase cycles per block for 16 KB, 48 KB,

and 64 KB blocks over the operating temperature range1

NOTES:

1 Operating temperature range is T

J from –40 °C to 150 °C.

Typical endurance is evaluated at 25 oC. Product qualification is performed to the minimum specification. For

additional information on the Freescale definition of Typical Endurance, please refer to Engineering Bulletin EB619,

Typical Endurance for Nonvolatile Memory.

100,000

—

cycles

2P/E

Number of program/erase cycles per block for 128 KB and

256 KB blocks over the operating temperature range1.

1,000

100,0002

(TBD)

2 Typical P/E cycles is 100,000 cycles for 128 KB and 256 KB blocks. For additional information on the Freescale

definition of Typical Endurance, please refer to Engineering Bulletin EB619, Typical Endurance for Nonvolatile

Memory.

—cycles

Retention C

Minimum data retention at 85 °C average ambient

temperature3

Blocks with 0–1,000 P/E cycles

Blocks with 1,001–10,000 P/E cycles

Blocks with 10,001–100,000 P/E cycles

3 Ambient temperature averaged over duration of application, not to exceed product operating temperature range.

—

years

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