nmc27c64 Fairchild Semiconductor, nmc27c64 Datasheet - Page 4

• Manufacturer Part Number: nmc27c64
• Description: 65,536-bit 8192 X 8 Cmos Eprom
• Manufacturer: Fairchild Semiconductor

NMC27C64 Rev. C
Capacitance
Capacitance
AC Test Conditions
Output Load
Input Rise and Fall Times
Input Pulse Levels
Timing Measurement Reference Level
AC Waveforms
Note 1: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of
the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions
for extended periods may affect device reliability.
Note 2: This parameter is only sampled and is not 100% tested.
Note 3: OE may be delayed up to t
Note 4: The t
High to TRI-STATE ® , the measured V
Low to TRI-STATE, the measured V
Note 5: TRI-STATE may be attained using OE or CE .
Note 6: The power switching characteristics of EPROMs require careful device decoupling. It is recommended that at least a 0.1 F ceramic capacitor be used on every device
between V
Note 7: The outputs must be restricted to V
Note 8: 1 TTL Gate: I
C
Note 9: V
Note 10: Inputs and outputs can undershoot to -2.0V for 20 ns Max.
L
: 100 pF includes fixture capacitance.
Symbol
Symbol
C
C
Inputs
Outputs
C
C
OUT
OUT
IN
IN
CC
PP
ADDRESS
CE
OE
OUTPUT
and GND.
may be connected to V
DF
and t
CF
OL
Input Capacitance
Output Capacitance
Input Capacitance
Output Capacitance
compare level is determined as follows:
= 1.6 mA, I
TA = +25˚C, f = 1 MHz (Note 2) NMC27C64Q
Parameter
TA = +25˚C, f = 1 MHz (Note 2) NMC27C64N
Parameter
0.8V
2V
2V
0.8V
2V
0.8V
2V
0.8V
(Note 6) (Note 9)
1 TTL Gate and C
ACC
OL1
OH
CC
= -400 A.
OH1
except during programming.
(DC) + 0.10V.
- t
OE
(DC) ˛ 0.10V;
CC
after the falling edge of CE without impacting t
+ 1.0V to avoid latch-up and device damage.
Hi-Z
V
V
V
V
L
IN
OUT
IN
OUT
= 100 pF (Note 8)
Conditions
Conditions
(Note 3)
= 0V
= 0V
t
= 0V
= 0V
ACC
0.45V to 2.4V
0.8V and 2V
0.8V and 2V
Address Valid
t
CE
(Note 3)
5 ns
t
OE
4
ACC
Typ
Typ
6
9
5
8
.
Valid Output
Max
Max
12
10
10
8
Units
Units
pF
pF
pF
pF
t
OH
(Notes 4, 5)
(Notes 4, 5)
t
t
CF
DF
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Hi-Z