R5F6451MLFD datasheet(87/122 Pages) RENESAS

87 / 122 page

R01DS0072EJ0120 Rev.1.20

Page 87 of 116

Aug 07, 2013

R32C/151 Group

5. Electrical Characteristics

Notes:

Program/erase definition

This value represents the number of erasure per block.

When the number of program/erase cycles is n, each block can be erased n times.

For example, if a word write is performed in 16 different addresses in a block and then the block is

erased, this is counted as a single program/erase operation. However, the same address cannot

be written to more than once per erasure (overwrite disabled).

Data retention includes periods when no supply voltage is applied and no clock is provided.

This data retention includes 3000 hours in Ta = 125°C and 7000 hours in Ta = 85°C.

Figure 5.3

Power Supply Circuit Timing

Table 5.9

Electrical Characteristics of E2dataFlash

(VCC = 3.0 to 5.5 V, VSS =0V, and Ta =Topr, unless otherwise noted)

Symbol

Characteristic

Value

Unit

Min.

Typ.

Max.

—

Program/erase cycles (1)

100000

Cycles

—

Word program time

100

2000

µs

—

Block erasure time

32 byte block

200

tPS

Flash memory circuit start-up stabilization time

µs

—

Data retention (2)

Ta = 55°C (3, 4)

Years

Contact a Renesas Electronics sales office for data retention times other than the above condition.

Table 5.10

Power Supply Circuit Timing Characteristics

(VCC = 3.0 to 5.5 V, VSS = 0 V, and Ta =Topr, unless otherwise noted)

Symbol

Characteristic

Measurement

Condition

Value

Unit

Min. Typ. Max.

td(P-R)

Internal power supply start-up stabilization

time after the main power supply is turned on

2ms

t d(P-R)

VCC

PLL oscillator-

output waveform

Internal power supply start-up

stabilization time after the main

power supply is turned on

Recommended

operating voltage

t d(P-R)

Supply voltage for

internal logic

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