M27C801-100B STMicroelectronics, M27C801-100B Datasheet - Page 6

• Manufacturer Part Number: M27C801-100B
• Description: 8 Mbit 1Mb x 8 UV EPROM and OTP EPROM
• Manufacturer: STMicroelectronics

M27C801
Table 8B. Read Mode AC Characteristics
(T
Note: 1. V
Figure 5. Read Mode AC Waveforms
System Considerations
The power switching characteristics of Advanced
CMOS EPROMs require careful decoupling of the
devices. The supply current, I
ments that are of interest to the system designer:
the standby current level, the active current level,
and transient current peaks that are produced by
the falling and rising edges of E. The magnitude of
the transient current peaks is dependent on the
capacitive and inductive loading of the device at
the output. The associated transient voltage peaks
can be suppressed by complying with the two line
6/16
t
Symbol
t
EHQZ
GHQZ
A
t
t
t
t
GLQV
AXQX
AVQV
ELQV
= 0 to 70 C or –40 to 85 C; V
2. Sampled only, not 100% tested.
(2)
(2)
CC
Q0-Q7
A0-A19
E
G
must be applied simultaneously with or before V
t
ACC
t
t
t
Alt
t
t
CE
OE
DF
DF
OH
Address Valid to Output Valid
Chip Enable Low to Output Valid
Output Enable Low to Output
Valid
Chip Enable High to Output Hi-Z
Output Enable High to Output
Hi-Z
Address Transition to Output
Transition
Parameter
CC
, has three seg-
CC
tAVQV
tELQV
= 5V
tGLQV
VALID
(1)
10%)
PP
and removed simultaneously or after V
E = V
E = V
Test Condition
GV
GV
IL
IL
E = V
E = V
output control and by properly selected decoupling
capacitors. It is recommended that a 0.1 F ceram-
ic capacitor be used on every device between V
and V
tor of low inherent inductance and should be
placed as close to the device as possible. In addi-
tion, a 4.7 F bulk electrolytic capacitor should be
used between V
es. The bulk capacitor should be located near the
power supply connection point. The purpose of the
bulk capacitor is to overcome the voltage drop
caused by the inductive effects of PCB traces.
, GV
, GV
PP
PP
= V
= V
PP
PP
IL
IL
SS
IL
IL
= V
= V
. This should be a high frequency capaci-
IL
IL
tAXQX
Min
0
0
0
CC
-80
tEHQZ
tGHQZ
VALID
and V
Max
80
80
40
35
35
PP
M27C801
.
SS
for every eight devic-
-100/-120/-150
Min
0
0
0
AI01583B
Hi-Z
Max
100
100
50
40
40
Unit
ns
ns
ns
ns
ns
ns
CC