參數(shù)資料
型號(hào): 28C64A
廠商: Microchip Technology Inc.
英文描述: 64K (8K x 8) CMOS EEPROM(64K位, CMOS并行 EEPROM)
中文描述: 64K的(8K的× 8)的CMOS EEPROM(最大64K的位,并行的CMOS EEPROM的)
文件頁(yè)數(shù): 5/8頁(yè)
文件大?。?/td> 67K
代理商: 28C64A
1996 Microchip Technology Inc.
DS11109H-page 5
28C64A
FIGURE 1-3:
DATA POLLING WAVEFORMS
FIGURE 1-4:
CHIP CLEAR WAVEFORMS
TABLE 1-5:
SUPPLEMENTARY CONTROL
Mode
CE
OE
WE
A9
V
CC
I/O
I
Chip Clear
V
IL
V
IH
V
IL
X
V
CC
Extra Row Read
V
IL
V
IL
V
IH
A9 = V
H
V
CC
Data Out
Extra Row Write
*
V
IH
*
A9 = V
H
V
CC
Data In
Note:
V
H
= 12.0V
±
0.5V. *Pulsed per programming waveforms.
Address Valid
Last Written
Address Valid
t
ACC
t
CE
t
WPL
t
WPH
t
DV
t
WC
t
OE
True Data Out
Data In
Valid
V
IH
V
IL
Data
OE
WE
CE
Address
I/O7 Out
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
H
V
IH
CE
OE
WE
t
S
t
H
t
W
t
S
=t
μ
s
H
= 12.0V
±
0.5V
V
H
= 10ms
t
W
V
IH
V
IL
V
IH
V
IL
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