參數(shù)資料
型號(hào): 27C64
廠(chǎng)商: Microchip Technology Inc.
英文描述: 64K (8K x 8) CMOS EPROM(4.5~5.5V,64K位,CMOS EPROM)
中文描述: 64K的(8K的× 8)的CMOS存儲(chǔ)器(4.5?5.5V的,64K的位,的CMOS存儲(chǔ)器)
文件頁(yè)數(shù): 3/12頁(yè)
文件大小: 62K
代理商: 27C64
1996 Microchip Technology Inc.
DS11107L-page 3
27C64
TABLE 1-3:
READ OPERATION AC CHARACTERISTICS
FIGURE 1-1:
READ WAVEFORMS
AC Testing Waveform:
Output Load:
Input Rise and Fall Times:
Ambient Temperature:
V
1 TTL Load + 100 pF
10 ns
Commercial:
Industrial:
IH
= 2.4V and V
IL
= 0.45V; V
OH
= 2.0V V
OL
= 0.8V
Tamb = 0C to +70C
Tamb = -40C to +85C
Parameter
Sym
27C64-12
27C64-15
27C64-17
27C64-20
27C64-25
Units
Conditions
Min Max Min Max Min Max Min Max Min Max
Address to Output Delay
t
ACC
120
150
170
200
250
ns
CE = OE = V
IL
CE to Output Delay
t
CE
120
150
170
200
250
ns
OE = V
IL
OE to Output Delay
t
OE
65
70
70
75
100
ns
CE = V
IL
CE or OE to O/P High
Impedance
t
OFF
0
50
0
50
0
50
0
55
0
60
ns
Output Hold from
Address CE or OE,
whichever occurs first
t
OH
0
0
0
0
0
ns
Address
CE
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
OE
Outputs
O0 - O7
V
OH
V
OL
Address Valid
t
CE(2)
t
OE(2)
High Z
Valid Output
t
ACC
High Z
t
OH
t
OFF(1,3)
Note 1: tOFF is specified for OE or CE, whichever occurs first.
2: OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.
3: This parameter is sampled and is not 100% tested.
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