M28W160 데이터 시트보기 (PDF) - STMicroelectronics

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M28W160

16 Mbit (1Mb x16, Boot Block) 3V Supply Flash Memory

STMicroelectronics 

M28W160BT, M28W160BB

Figure 12. Power-Up and Reset AC Waveforms

W, E, G

RP

VDD, VDDQ

tPHWL

tPHEL

tPHGL

tVDHPH

Power-Up

tPHWL

tPHEL

tPHGL

tPLPH

Reset

AI03453b

Table 15. Power-Up and Reset AC Characteristics

Symbol

Parameter

M28W160B

Test Condition

70 85 90

tPHWL

tPHEL

tPHGL

Reset High to Write Enable Low, Chip

Enable Low, Output Enable Low

During

Program Min 50 50 50

and Erase

others Min 30 30 30

tPLPH(1,2) Reset Low to Reset High

Min 100 100 100

tVDHPH(3) Supply Voltages High to Reset High

Min 50 50 50

Note: 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.

Unit

100

50 µs

30 ns

100 ns

50 µs

26/45

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