M28W320 데이터 시트보기 (PDF) - STMicroelectronics

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M28W320

32 Mbit (2Mb x16, Boot Block) 3V Supply Flash Memory

STMicroelectronics 

DC and AC parameters

Figure 11. Power-Up and Reset AC Waveforms

M28W320FCT, M28W320FCB

W, E, G

RP

VDD, VDDQ

tPHWL

tPHEL

tPHGL

tVDHPH

Power-Up

tPHWL

tPHEL

tPHGL

tPLPH

Reset

AI03537b

Table 19. Power-Up and Reset AC Characteristics

Symbol

Parameter

M28W320FCT, M28W320FCB

Test Condition

Unit

70 85 90 10

tPHWL

tPHEL

tPHGL

Reset High to Write Enable Low, Chip

Enable Low, Output Enable Low

During

Program Min 50 50 50 50 µs

and Erase

others Min 30 30 30 30 ns

tPLPH(1)(2) Reset Low to Reset High

tVDHPH(3) Supply Voltages High to Reset High

Min 100 100 100 100 ns

Min 50 50 50 50 µs

1. The device Reset is possible but not guaranteed if tPLPH < 100ns.

2. Sampled only, not 100% tested.

3. It is important to assert RP in order to allow proper CPU initialization during power up or reset.

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