m27c400 STMicroelectronics, m27c400 Datasheet - Page 3

• Manufacturer Part Number: m27c400
• Description: 4 Mbit 512kb X8 Or 256kb X16 Uv Eprom And Otp Eprom
• Manufacturer: 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'.
Read Byte-wide Upper
Verify
Program Inhibit
Standby
Manufacturer’s Code
Device Code
Read Word-wide
Read Byte-wide Lower
Output Disable
Program
Electronic Signature
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
Mode
or V
IL
Ambient Operating Temperature
Temperature Under Bias
Storage Temperature
Input or Output Voltage (except A9)
Supply Voltage
A9 Voltage
Program Supply Voltage
, V
ID
= 12V ± 0.5V.
CC
V
A0
V
IH
IL
V
+0.5V with possible overshoot to V
IL
V
V
V
V
V
V
V
V
Pulse
E
IL
IL
IL
IL
IH
IH
IH
IL
Q7
0
1
V
V
V
V
V
V
V
V
(1)
Parameter
G
X
Q6
IH
IH
IH
IL
IL
IL
IL
IL
0
0
(3)
BYTEV
Q5
1
1
V
V
V
V
V
V
V
X
X
PP
PP
PP
IH
IH
IL
IL
CC
PP
+2V for a period less than 20ns.
Q4
0
1
V
A9
X
X
X
X
X
X
X
X
ID
Q3
0
0
Data Out
Data Out
Data Out
Data Out
Data In
Q7-Q0
Codes
Hi-Z
Hi-Z
Hi-Z
Q2
0
0
–40 to 125
–50 to 125
–65 to 150
Q1
–2 to 13.5
Data Out
Data Out
0
1
–2 to 14
Q14-Q8
Data In
–2 to 7
–2 to 7
Codes
Value
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Q0
0
0
M27C400
Data Out
Data Out
Q15A–1
Hex Data
Data In
Code
Hi-Z
Hi-Z
Hi-Z
V
V
B8h
20h
Unit
IH
IL
°C
°C
°C
V
V
V
V
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