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Semiconductor
MR27V401D
524,288-Word x 8-Bit One Time PROM
DESCRIPTION
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)
1A
November 1999
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PIN CONFIGURATION (TOP VIEW)
MR27V401D
Vpp
1
2
A16
3
A15
4
A12
A7
5
A6
6
A5
7
A4
8
A3
9
A2
10
A1
11
A0
12
D0
13
D1
14
D2
15
V
16 17
SS
32-pin DIP
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
V
CC
A18
A17
A14
A13
A8
A9
A11
OE
A10
CE
D7
D6
D5
D4
D3
Vpp
1
2
A16
3
A15
4
A12
A7
5
A6
6
A5
7
A4
8
A3
9
A2
10
A1
11
A0
12
D0
13
D1
14
D2
15
V
16 17
SS
32-pin SOP
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
V
CC
A18
A17
A14
A13
A8
A9
A11
OE
A10
CE
D7
D6
D5
D4
D3
Vpp A18
A16
A4
A5
A6
A7
A15
A12
32-pin TSOP
A3
A1
A2 D1
A0
D0
D2
V
PIN NAMES
A0 - A18 Address input
D0 - D7 Data output
CE
OE
V
CC
V
SS
V
PP
V
CC
A17
D3 D5 D7
D4 D6
SS
A13A8A9
A10
CE
FUNCTIONS
Chip enable
Output enable
Power supply voltage
GND
Program Power supply voltage
A11A14
12345678910111213141516
32313029282726252423222120191817
OE
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BLOCK DIAGRAM
MR27V401D
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
Address Buffer
CE OE
CE PGMOE
Row Decoder
Column Decoder
D0
V
PP
Memory Matrix
524,288X8-Bit
Multiplexer
Output Buffer
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
V
PP
**
9.75V
V
CC
3.0V to 3.3V
4.0V
D0 - D7
D
OUT
Hi-Z
Hi-Z
D
IN
Hi-Z
D
OUT
3/11
ABSOLUTE MAXIMUM RATINGS
MR27V401D
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
RECOMMENDED OPERATING CONDITIONS
Parameter Symbol
VCC power supply voltage
VPP power supply voltage
Input "H" level
Input "L" level
V
CC
V
PP
V
IH
V
IL
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.
Condition
VCC=2.7V - 3.6V
0 to 70
-55 to 125
+ 0.5
CC
(Ta=0 to 70°C)
Min. Max.
2.7
-0.5
Typ.
-
-
-
-
3.6
VCC+0.5
V
+0.5*2.2
CC
0.6-0.5**
UnitValueCondition
°C
°C
V-0.5 to V
V-0.5 to VCC + 0.5
V-0.5 to 5
V-0.5 to 11.5
W1.0
Unit
V
V
V
V
4/11
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