27C04A Microchip Technology, 27C04A Datasheet - Page 3

• Manufacturer Part Number: 27C04A
• Description: 4K (512 x 8) CMOS EEPROM
• Manufacturer: Microchip Technology

TABLE 1-3:
FIGURE 1-1:
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE to OE High Output Float
Output Hold from Address, CE
or OE, whichever occurs first
Endurance
Note: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific applica-
Address
Notes:
1996 Microchip Technology Inc.
Data
OE
WE
CE
tion, please consult the Total Endurance Model which can be obtained on our BBS or website.
(1) t
(2) OE may be delayed up to t
(3) This parameter is sampled and is not 100% tested
Parameter
V
V
V
V
V
V
V
V
V
V
OFF
IL
IL
IL
IL
IH
IH
IH
OH
OL
IH
is specified for OE or CE, whichever occurs first
READ OPERATION AC CHARACTERISTICS
READ WAVEFORMS
High Z
AC Testing Waveform:
Output Load:
Input Rise and Fall Times: 20 ns
Ambient Temperature:
Sym
t
t
t
ACC
t
t
OFF
OH
—
CE
OE
CE
Min
1M
28C04A-15
- t
0
0
OE
after the falling edge of CE without impact on t
Max
150
150
70
50
—
t
Address Valid
ACC
Min
V
1 TTL Load + 100 pF
Commercial (C): Tamb = 0˚C to +70˚C
Industrial
1M
28C04A-20
0
0
t
IH
CE(2)
= 2.4V; V
t
Max
OE(2)
200
200
80
55
—
(I):
IL
= 0.45V; V
Min
1M
28C04A-25
Tamb = -40˚C to +85˚C
0
0
Valid Output
Max
250
250
100
OH
70
—
= 2.0V; V
cycles 25 C, Vcc =
Units
t
CE
ns
ns
ns
ns
ns
OH
t
28C04A
OFF(1,3)
OL
DS11126F-page 3
OE = CE = V
OE = V
CE = V
5.0V, Block
Mode (Note)
= 0.8V
Conditions
IL
IL
High Z
IL