M27C4002-10B1X STMICROELECTRONICS [STMicroelectronics], M27C4002-10B1X Datasheet - Page 3

• Manufacturer Part Number: M27C4002-10B1X
• Description: 4 Mbit (256Kb x16) UV EPROM and OTP EPROM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Table 2. Absolute Maximum Ratings
Note: 1. Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings" may
Table 3. Operating Modes
Note: X = V
Table 4. Electronic Signature
Note: Outputs Q15-Q8 are set to '0'.
DEVICE OPERATION
The operating modes of the M27C4002 are listed
in the Operating Modes table. A single power sup-
ply is required in the read mode. All inputs are TTL
levels except for V
Signature.
Read Mode
The M27C4002 has two control functions, both of
which must be logically active in order to obtain
data at the outputs. Chip Enable (E) is the power
Read
Output Disable
Program
Verify
Program Inhibit
Standby
Electronic Signature
Manufacturer’s Code
Device Code
Symbol
V
V
T
T
2. Minimum DC voltage on Input or Output is –0.5V with possible undershoot to –2.0V for a period less than 20ns. Maximum DC
3. Depends on range.
V
V
A9
IO
BIAS
T
STG
Identifier
CC
PP
A
cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions
above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating condi-
tions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant qual-
ity documents.
voltage on Output is V
(2)
(2)
IH
or V
IL
Mode
Ambient Operating Temperature
Temperature Under Bias
Storage Temperature
Input or Output Voltage (except A9)
Supply Voltage
A9 Voltage
Program Supply Voltage
, V
ID
PP
= 12V ± 0.5V.
and 12V on A9 for Electronic
CC
V
V
A0
IH
IL
+0.5V with possible overshoot to V
Q7
0
0
V
IL
(1)
Parameter
Q6
V
V
V
V
V
V
Pulse
E
0
1
IH
IH
IH
IL
IL
IL
(3)
Q5
1
0
CC
V
V
V
V
V
V
control and should be used for device selection.
Output Enable (G) is the output control and should
be used to gate data to the output pins, indepen-
dent of device selection. Assuming that the ad-
dresses are stable, the address access time
(t
(t
of t
E has been low and the addresses have been sta-
ble for at least t
G
X
IH
IH
IH
+2V for a period less than 20ns.
IL
IL
IL
Q4
AVQV
ELQV
0
0
GLQV
). Data is available at the output after a delay
) is equal to the delay from E to output
from the falling edge of G, assuming that
Q3
0
0
V
A9
X
X
X
X
X
X
ID
AVQV
Q2
0
1
-t
GLQV
V
V
V
–40 to 125
–50 to 125
–65 to 150
Q1
–2 to 13.5
CC
CC
CC
0
0
–2 to 14
–2 to 7
–2 to 7
.
Value
V
V
V
V
V
or V
or V
or V
CC
PP
PP
PP
PP
SS
SS
SS
Q0
0
0
M27C4002
Data Out
Data Out
Q15-Q0
Data In
Hex Data
Codes
Hi-Z
Hi-Z
Hi-Z
20h
44h
Unit
°C
°C
°C
V
V
V
V
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