S29WS064N0LBAI011 datasheet(87/99 Pages) SPANSION

87 / 99 page

January 25, 2005 S29WS-N_00_G0

Ad vance

Information

11.8.7 Erase and Programming Performance

Notes:

Typical program and erase times assume the following conditions: 25°C, 1.8 V VCC, 10,000

cycles; checkerboard data pattern.

2. Under worst case conditions of 90°C, VCC = 1.70 V, 100,000 cycles.

3. Typical chip programming time is considerably less than the maximum chip programming

time listed, and is based on utilizing the Write Buffer.

4. In the pre-programming step of the Embedded Erase algorithm, all words are programmed

to 00h before erasure.

5. System-level overhead is the time required to execute the two- or four-bus-cycle sequence

for the program command. See the Appendix for further information on command

definitions.

6. Contact the local sales office for minimum cycling endurance values in specific applications

and operating conditions.

7. Refer to Application Note “Erase Suspend/Resume Timing” for more details.

8. Word programming specification is based upon a single word programming operation not

utilizing the write buffer.

9. The content in this document is Advance information for the S29WS064N and S29WS128N.

Content in this document is Preliminary for the S29W256N.

Parameter

Typ (Note 1)

Max (Note 2)

Unit

Comments

Sector Erase Time

64 Kword

VCC

0.6

3.5

Excludes 00h

programming prior

to erasure (Note 4)

16 Kword

VCC

<0.15

Chip Erase Time

VCC

153.6 (WS256N)

77.4 (WS128N)

39.3 (WS064N)

308 (WS256N)

154 (WS128N)

78 (WS064N)

ACC

130.6 (WS256N)

65.8 (WS128N)

33.4 (WS064N)

262 (WS256N)

132 (WS128N)

66 (WS064N)

Single Word Programming Time

(Note 8)

VCC

400

µs

ACC

240

Effective Word Programming Time

utilizing Program Write Buffer

VCC

9.4

µs

ACC

Total 32-Word Buffer Programming

Time

VCC

300

3000

µs

ACC

192

1920

Chip Programming Time (Note 3)

VCC

157.3 (WS256N)

78.6 (WS128N)

39.3 (WS064N)

314.6 (WS256N)

157.3 (WS128N)

78.6 (WS064N)

Excludes system

level overhead

(Note 5)

ACC

100.7 (WS256N)

50.3 (WS128N)

25.2 (WS064N)

201.3 (WS256N)

100.7 (WS128N)

50.3 (WS064N)

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