PAC7112 datasheet(34/56 Pages) FREESCALE

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MAC7100 Microcontroller Family Hardware Specifications, Rev. 1.2

Preliminary

Electrical Characteristics

Freescale Semiconductor

3.13.7 CFM Timing Specifications

Table 35 lists the time required to execute various operations described in the Section 3.13.1 through

Section 3.13.6. For operating conditions other than those assumed below, Equation 19 through

Equation 29 must be used to calculate the timing for specific commands under those conditions.

Table 35. CFM Timing Characteristics

Conditions are shown in Table 7 unless otherwise noted

Num C

Rating

Symbol

Min

Typ

Max

Unit

D System Clock

fNVMfsys

0.5

—

50 1

NOTES:

1. Subject to restrictions in Table 19 and Table 20 for operating characteristics of the oscillator and PLL.

MHz

D Bus frequency for Programming or Erase Operations

fNVMfips

1—

—

MHz

D Program/Erase Operating Frequency

fNVMOP

150

—

200

kHz

P Programming Time, 2

Single Word

2. Minimum erase and programming times are achieved with the indicated maximum fSYS (which is fIPS × 2, and subject to the

limits of Table 19 and Table 20) and corresponding maximum fNVMOP. Maximum erase and programming times are

dependent on the combination of fNVMOP and fIPS; values shown are calculated for fIPS = 2 MHz and fNVMOP = 154 KHz.

fSYS = 50 MHz tswpgm

47.1

—

71.0

μs

fSYS = 40 MHz

48.1

—

71.0

D Programming Time, 2

Consecutive Word Burst

fSYS = 50 MHz tbwpgm

20.8

—

30.5

μs

fSYS = 40 MHz

21.3

—

30.5

D Programming Time, 2

32-word Row Burst

fSYS = 50 MHz tbrpgm

693.1

—

1,016.5

μs

fSYS = 40 MHz

706.8

—

1,016.5

X7a P Page Erase Time, 2

Program Flash

fSYS = 50 MHz

terap

21.0

—

26.6

fSYS = 40 MHz

21.3

—

26.6

X7b P Page Erase Time, 2

Data Flash

fSYS = 50 MHz

terad

5.2

—

6.7

fSYS = 40 MHz

5.3

—

6.7

P Mass Erase Time 2

tmass

100

—

130

X9a D Blank Check Time, 3

Program Flash per Block

3. Minimum blank check or page erase verify time assumes the first word in the array is blank and the second is not. Maximum

blank check or page erase verify time assumes the entire block or page is blank.

MAC71x1, MAC71x6tbcheckp

—

131,087

tIPS

MAC71x216

—

65,551

X9b D Blank Check Time, 3

Data Flash per Block

tbcheckd

—

8,207

tIPS

X9c D Page Erase Verify Time 3

Program Flash

tpevp

—

1,039

tIPS

Data Flash

tpevd

—

271

X10 D Data Signature Time 4

4. Data signature timing is dependant on the number of words or half-words compressed for the program and data arrays,

respectively. Minimum time is for two words or half-words; maximum time is for the entire array.

MAC71x6, Program

tdsig

—

262,159

tIPS

MAC71x1, Program

—

131,087

MAC71x2, Program

—

65,551

MAC71xx, Data

—

16,399

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