Dear customers,
About the change in the name such as "Oki Electric Industry Co. Ltd." and
"OKI" in documents to OKI Semiconductor Co., Ltd.
The semiconductor business of Oki Electric Industry Co., Ltd. was succeeded to OKI
Semiconductor Co., Ltd. on October 1, 2008.
Therefore, please accept that although
the terms and marks of "Oki Electric Industry Co., Ltd.", “Oki Electric”, and "OKI"
remain in the documents, they all have been changed to "OKI Semiconductor Co., Ltd.".
It is a change of the company name, the company trademark, and the logo, etc. , and
NOT a content change in documents.
October 1, 2008
OKI Semiconductor Co., Ltd.
550-1 Higashiasakawa-cho, Hachioji-shi, Tokyo 193-8550, Japan
http://www.okisemi.com/en/
OKI Semiconductor
MR27V401E
524,288-Word
×
8-Bit One Time PROM
FEDR27V401E-01-03
Issue Date: Jan. 15, 2004
GENERAL DESCRIPTION
The MR27V401E is a 4 Mbit electrically One Time Programmable Read-Only Memory organized as
524,288-word
×
8-bit. The MR27V401E supports high speed asynchronous read operation using a single 3.3V
power supply.
FEATURES
· 524,288-word
×
8-bit
· +3.3 V power supply
· Access time
70 nS MAX
· Operating current
25 mA MAX
· Standby current
50 µA MAX
· Input/Output TTL compatible
· Three-state output
· Packages:
32-pin plastic SOP (SOP32-P-525-1.27-K)
(MR27V401EMA)
32-pin plastic TSOP (TSOP(1)32-P-0814-0.50-1K) (MR27V401ETA)
32-pin plastic DIP (DIP32-P-600-2.54)
(MR27V401ERA)
1/15
FEDR27V401E-01-03
OKI Semiconductor
MR27V401E / OTP
PIN CONFIGURATION (TOP VIEW)
V
PP
1
A16
2
A15
3
A12
4
A7
5
A6
6
A5
7
A4
8
A3
9
A2
10
A1
11
A0
12
D0
13
D1
14
D2
15
V
SS
16
32
V
CC
31
A18
30
A17
29
A14
28
A13
27
A8
26
A9
25
A11
24
OE
23
A10
22
CE
21
D7
20
D6
19
D5
18
D4
17
D3
32-pin SOP/DIP
A4 A5 A6 A7 A12 A15 A16 V
PP
V
CC
A18 A17 A14 A13 A8 A9 A11
16 15 14 13 12 11 10 9
8 7 6 5 4
3 2 1
32-pin TSOP
17 18 19 20
21 22 23 24 25 26 27
28 29 30 31 32
D7
CE
A10
OE
A3 A2 A1 A0 D0 D1 D2 V
SS
D3 D4 D5 D6
Pin name
A0 to A18
D0 to D7
CE
OE
V
CC
V
SS
V
PP
Address input
Data output
Chip enable
Output enable
Power supply voltage
GND
Functions
Program power supply voltage
2/15
FEDR27V401E-01-03
OKI Semiconductor
MR27V401E / OTP
BLOCK DIAGRAM
CE
CE
OE
OE
V
PP
PGM
Column Decoder
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
Row Decoder
Memory Cell Matrix
524,288 × 8-Bit
Address Buffer
Multiplexer
Output Buffer
D0
D1
D2
D3
D4
D5
D6
D7
FUNCTION TABLE
Mode
Read
Output disable
Standby
Program
Program Inhibit
Program verify
CE
L
L
H
L
H
H
OE
L
H
∗
H
H
L
9.75V
4.0V
**
3.3 V
DC
V
CC
D0 to D7
D
OUT
Hi–Z
Hi–Z
D
IN
Hi–Z
D
OUT
∗:
Don’t Care (H or L)
∗∗:
Don’t Care (H or L or OPEN)
3/15
FEDR27V401E-01-03
OKI Semiconductor
MR27V401E / OTP
ABSOLUTE MAXIMUM RATINGS
Parameter
Operating temperature under bias
Storage temperature
Input voltage
Output voltage
Power supply voltage
Program power supply voltage
Power dissipation per package
Symbol
Ta
Tstg
V
I
V
O
V
CC
V
PP
P
D
—
relative to V
SS
Condition
—
Value
0 to 70
–55 to 125
–0.5 to V
CC
+0.5
–0.5 to V
CC
+0.5
–0.5 to 5
–0.5 to 11.5
1.0
Unit
°C
°C
V
V
V
V
W
RECOMMENDED OPERATING CONDITIONS
(Ta = 0 to 70°C)
Parameter
V
CC
power supply voltage
V
PP
power supply voltage
Input “H” level
Input “L” level
Symbol
V
CC
V
PP
V
IH
V
IL
V
CC
= 3.0 to 3.6 V
Condition
Min.
3.0
–0.5
2.2
–0.5∗∗
Typ.
—
—
—
—
Max.
3.6
V
CC
+0.5∗
V
CC
+0.5∗
0.6
Unit
V
V
V
V
Voltage is relative to V
SS
.
∗
: Vcc+1.5V(Max.) when pulse width of overshoot is less than 10ns.
∗∗
: -1.5V(Min.) when pulse width of undershoot is less than 10ns.
4/15