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/
¡
Semiconductor
MR27V401D
524,288-Word x 8-Bit One Time PROM
DESCRIPTION
1A
The MR27V401D is a 4Mbit electrically Programmable Read-Only Memory organized as 524,288
word x 8bit. The MR27V401D operates on a single +3V-3.3V power supply and is TTL compatible.
Since the MR27V401D operates asynchronously , external clocks are not required , making this
device easy-to-use. The MR27V401D is suitable as large-capacity fixed memory for microcomputers
and data terminals. It is manufactured using a CMOS double silicon gate technology and is offered
in 32-pin DIP, 32-pin SOP or 32-pin TSOP packages.
FEATURES
• 524,288 word x 8bit
• Single +3V-3.3V power supply
• Access time
80ns access time (Vcc=+3V)
70ns access time (Vcc=+3.3V)
• Input / Output TTL compatible
• Three-state output
• Packages
32-pin plastic DIP (DIP32-P-600-2.54)
(Product name : MR27V401DRA)
32-pin plastic SOP (SOP32-P-525-1.27-K)
(Product name : MR27V401DMA)
32-pin plastic TSOP (TSOP I 32-P-814-0.50-K) (Product name : MR27V401DTA)
November 1999
1/11
MR27V401D
PIN CONFIGURATION (TOP VIEW)
Vpp 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-pin DIP
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
Vpp 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-pin SOP
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
A5
A7
A15
Vpp
A18
A14
A8
A11
1
V
CC
A6
A12
A13
A9
A4
A16
A17
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2
32-pin TSOP
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
D3
D5
D7
A3
A1
D0
D2
A10
V
SS
D4
D6
A2
D1
OE
CE
A0
PIN NAMES
A0 - A18
D0 - D7
CE
OE
V
CC
V
SS
V
PP
FUNCTIONS
Address input
Data output
Chip enable
Output enable
Power supply voltage
GND
Program Power supply voltage
2/11
MR27V401D
BLOCK DIAGRAM
CE
OE
V
PP
CE
OE
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 Matrix
Address Buffer
524,288X8-Bit
Multiplexer
Output Buffer
D0
D1
D2
D3
D4
D5
D6
D7
FUNCTION TABLE
MODE
READ
OUTPUT DISABLE
STAND-BY
PROGRAM
PROGRAM INHIBIT
PROGRAM VERIFY
* : Don't Care (H or L)
** : Don't Care (H or L or Open)
CE
L
L
H
L
H
H
OE
L
H
*
H
H
L
9.75V
4.0V
V
PP
**
V
CC
3.0V to 3.3V
D0 - D7
D
OUT
Hi-Z
Hi-Z
D
IN
Hi-Z
D
OUT
3/11
MR27V401D
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
Topr
T
stg
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
Voltage is relative to Vss
* : 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.
Symbol
V
CC
V
PP
V
IH
V
IL
Condition
Min.
2.7
-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
V
CC
=2.7V - 3.6V
4/11
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