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Table 2.116

Code MRAM Characteristics (2 of 2)

Parameter

MRICLK = 250

MHz

MRICLK = 200

MHz

MRICLK = 150

MHz

MRICLK = 133

MHz

Min

Typ

Max Min

Typ

Max Min

Typ

Max Min

Typ

Max

Reprogramming cycle*9

NPC 100000

—

100000

—

100000

—

100000

—

Tim

—

Data hold time*2

tDRP 10*2 *3 —

—

10*2 *3

—

10*2 *3

—

10*2 *3

—

Yea

Tj =

+125°C

Note 1. This is the minimum number of times to guarantee all the characteristics after reprogramming. The guaranteed range is from 1 to

the minimum value.

Note 2. This indicates the minimum value of the characteristic when reprogramming is performed within the specified range.

Note 3. This result is obtained from reliability testing.

Note 4. The reference value at VCC = 3.3 V and room temperature.

Note 5. Perform rewrite 50% of bits at Typ. condition.

Note 6. If MRPCLK < 125MHz, add the time of MRPCLK 1cycle to the Program time.

Note 7. To calculate the updating time at other frequencies, using approximate formula below listed.

If MRPCLK < 125MHz, add 1/FMRPCLK [us] to the formula. (FMRICLK: frequency of MRICLK [MHz], FMRPCLK: frequency of

MRPCLK [MHz])

tPMC (Typ) = 137.8/FMRICLK + 6.452 [μs], tPMC (Max) = 1879/FMRICLK + 78.75 [μs] for normal program mode.

tPMC (Typ) = 137.8/FMRICLK + 4.452 [μs], tPMC (Max) = 1879/FMRICLK + 76.75 [μs] for high speed program mode.

Note 8. Read and program operations for the code MRAM cannot be executed simultaneously. This value is for independent program

operation without arbitration between read and program.

Note 9. The reprogramming cycle is the number of programming per 32-byte code MRAM address space. Programming the same data

to the same address also increases the reprogramming cycle count by one. For a reprogramming cycle of n times (n = 100,000),

programming can be performed n times for every 32-byte code MRAM address space.

2.15.2

Option Setting Memory (configuration area) Characteristics

Table 2.117

Option Setting Memory (configuration area) characteristics

Parameter

MRPCLK = 125

MHz

MRPCLK = 100

MHz

MRPCLK = 75

MHz

MRPCLK = 66

MHz

Min

Typ

Max Min

Typ

Max Min

Typ

Max Min

Typ

Max

Command

time for

configuration

set*5 *6

Normal

program

mode

(MRPSC.

MHSPEN

= 0)

tPCF

—

0.35 8.19 —

0.35

8.3

—

0.37

8.83 —

0.39

9.42 ms

—

High

speed

program

mode

(MRPSC.

MHSPEN

= 1)

—

0.06

7.85 —

0.07

7.96 —

0.08

8.5

—

0.09

9.06 ms

—

Update cycle*7

NCU

100000

—

100000

—

100000

—

100000

—

Tim

—

Data hold time*2

tDRP 10*2 *3 —

—

10*2 *3

—

10*2 *3

—

10*2 *3

—

Yea

Tj =

+125°C

Note 1. This is the minimum number of times to guarantee all the characteristics after update. The guaranteed range is from 1 to the

minimum value.

Note 2. This indicates the minimum value of the characteristic when update is performed within the specified range.

Note 3. This result is obtained from reliability testing.

Note 4. The reference value at VCC = 3.3 V and room temperature.

Note 5. To calculate the updating time at other frequencies, using approximate formula below listed. (FMRPCLK: frequency of MRPCLK

[MHz])

RA8M2 Datasheet

2. Electrical Characteristics

R01DS0438EJ0130 Rev.1.30

Feb 27, 2026

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