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Revision descriptions – Samsung S3C8275X User Manual

Page 5

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REVISION DESCRIPTIONS

1. Electrical Data

Table 17-12. A.C. Electrical Characteristics for Internal Flash ROM

(T

A

=

− 25

°

C to + 85

°

C, V

DD

= 2.0 V to 3.6 V)

Parameter Symbol

Conditions

Min

Typ

Max

Unit

Programming time

(1)

Ftp

30

µs

Chip erasing time

(2)

Ftp1

50

ms

Sector erasing time

(3)

Ftp2

10

ms

Data access time

Ft

RS

25

ns

Number of writing/erasing

FNwe

10,000

(4)

Times

NOTES:
1. The programming time is the time during which one byte (8-bit) is programmed.
2. The chip erasing time is the time during which all 16K byte block is erased.
3. The sector erasing time is the time during which all 128 byte block is erased.
4. Maximum number of writing/erasing is 10,000 times for full-flash(S3F8275) and 100 times for half-flash

(S3F8278X/F8274X).

5. The chip erasing is available in Tool Program Mode only.

2. Condition of Operating Voltage

Condition of operating voltage is modified “fx = 0

− 4.2MHz” to “fx = 0.4 − 4.2MHz” at 2.0V – 3.6V and

“fx = 0

− 8MHz” to “fx = 0.4 − 8MHz” at 2.5V − 3.6V in the page 17-2.


3. CHAPTHER 16. Embedded Flash Memory Interface

This chapter is modified for only S3F8275X.

4. CHAPTHER 7. Clock Circuit

The contents of OSCCON.7 should be changed “ 0 = Select normal circuit for sub oscillator” into “ 0 = Initial state”
in the page 4-21 and Figure 7-10.

It is added “NOTE: The OSCCON.7 should be maintained to “1”, during the sub oscillator operation.” In the page
4-21 and Figure 7-10.

The figure 7-7 is modified partly.




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