PXD20 datasheet(90/130 Pages) FREESCALE

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Electrical characteristics

PXD20 Microcontroller Data Sheet, Rev. 2

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

4.15

Flash memory electrical characteristics

Table 42. Program and erase specifications

Symbol

Parameter

Min

Value

Typical

Value1

1 Typical program and erase times assume nominal supply values and operation at 25 °C. All times are subject to change

pending device characterization.

Initial

Max2

2 Initial factory condition: < 100 program/erase cycles, 25 °C, typical supply voltage.

Max3

3 The maximum program & erase times occur after the specified number of program/erase cycles. These maximum values are

characterized but not guaranteed.

Unit

SpecID

Tdwprogram

C Double Word (64 bits) Program Time4

4 Actual hardware programming times. This does not include software overhead.

—22

500

sD14.1

T16kpperase

C 16 KB Block Pre-program and Erase Time

—

500

5000

D14.2

T32kpperase

C 32 KB Block Pre-program and Erase Time

—

600

5000

D14.3

T128kpperase

C 128 KB Block Pre-program and Erase Time

—

1300

7500

D14.4

Table 43. Flash module life

Symbol

Parameter

Conditions

Value

Unit

SpecID

Min

Typ

P/E

C Number of program/erase cycles per block

for 16 KB, 48KB and 64KB blocks, across

full operating temperature range (Tj)

—

100,000

—

P/E

cycles

D14.5

P/E

C Number of program/erase cycles per block

for 128KB and 256KB blocks, across full

operating temperature range (Tj)

—

1, 000

100,000

P/E

cycles

D14.6

Data

retention

C Minimum data retention at 85 °C average

ambient temperature1

1 Ambient temperature averaged over duration of application, not to exceed recommended product operating temperature

range.

Blocks with 0 – 1,000 P/E

cycles

—

Years

D14.8

Blocks with 1,001 –

10,000 P/E cycles

—

Years

Blocks with 10,001 –

100,000 P/E cycles

—

Years

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