S75WS256NDFBAWMB datasheet(86/216 Pages) SPANSION

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S75WS256Nxx Based MCPs

S75WS-N-00_A0 February 17, 2005

Ad van c e

Inf o rmation

12.8.7

Erase and Programming Performance

Notes:

1. 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 about 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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