MPC5643L datasheet(99/136 Pages) FREESCALE

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Electrical characteristics

MPC5643L Microcontroller Data Sheet, Rev. 8.1

Freescale Semiconductor

3.16

Flash memory electrical characteristics

3 This is the maximum frequency that the analog portion of the ADC can attain. A sustained conversion at this frequency is not

possible.

4 During the sample time the input capacitance CS can be charged/discharged by the external source. The internal resistance

of the analog source must allow the capacitance to reach its final voltage level within tsample. After the end of the sample time

tsample, changes of the analog input voltage have no effect on the conversion result. Values for the sample clock tsample depend

on programming.

5 This parameter does not include the sample time t

sample, but only the time for determining the digital result and the time to

load the result register with the conversion result.

6 See Figure 8.

7 For the 144-pin package

8 No missing codes

Table 26. Flash memory program and erase electrical specifications

No.

Symbol

Parameter

Typ1

1 Typical program and erase times represent the median performance and assume nominal supply values and

operation at 25C. These values are characterized, but not tested.I

Factory

Avg

Initial

Max2

2 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 25C. These values are verified at production

test.

Lifetime

Max3

3 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 *

4 Program times are actual hardware programming times and do not include software overhead.

Double word (64 bits) program time4

—

500

µs

2TPPROGRAM *

5 Page(128 bits) program time5

5 Program times are actual hardware programming times and do not include software overhead.

160

500

µs

3T16KPPERASE *

5 16 KB block pre-program and erase time

270

1000

500

5000

4T48KPPERASE *

5 48 KB block pre-program and erase time

625

1500

750

5000

5T64KPPERASE *

5 64 KB block pre-program and erase time

800

1800

900

5000

6T128KPPERASE *

5 128 KB block pre-program and erase time

1500 2600

1300

7500

7T256KPPERASE *

5 256 KB block pre-program and erase time

3000 5200

2600

15000

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