參數(shù)資料
型號(hào): M28W640ECT85N1E
廠商: STMICROELECTRONICS
元件分類: PROM
英文描述: 4M X 16 FLASH 3V PROM, 85 ns, PDSO48
封裝: 12 X 20 MM, LEAD FREE, PLASTIC, TSOP-48
文件頁(yè)數(shù): 21/54頁(yè)
文件大?。?/td> 957K
代理商: M28W640ECT85N1E
M28W640ECT, M28W640ECB
28/54
Figure 12. Power-Up and Reset AC Waveforms
Table 19. Power-Up and Reset AC Characteristics
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.
Symbol
Parameter
Test Condition
M28W640EC
Unit
70
85
90
10
tPHWL
tPHEL
tPHGL
Reset High to Write Enable Low, Chip
Enable Low, Output Enable Low
During Program
and Erase
Min
50
s
others
Min
30
ns
tPLPH
(1,2)
Reset Low to Reset High
Min
100
ns
tVDHPH
(3)
Supply Voltages High to Reset High
Min
50
s
AI03537b
W,
RP
tPHWL
tPHEL
tPHGL
E, G
VDD, VDDQ
tVDHPH
tPHWL
tPHEL
tPHGL
tPLPH
Power-Up
Reset
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