OKI MSM27C401CZ Datasheet
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Semiconductor
MSM27C401CZ
524,288-Word x 8-Bit One Time PROM
DESCRIPTION
The MSM27C401CZ is a 4Mbit electrically Programmable Read-Only Memory organized as 524,288
word x 8bit. The MSM27C401CZ operates on a single +3V-5V power supply and is TTL compatible.
Since the MSM27C401CZ operates asynchronously , external clocks are not required , making this
device easy-to-use. The MSM27C401CZ 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-5V power supply
• Access time 150ns access time (Vcc=+3V)
120ns access time (Vcc=+3.3V)
80ns access time (Vcc=+5V)
• Input / Output TTL compatible
• Three-state output
• Packages 32-pin plastic DIP (DIP32-P-600-2.54)
32-pin plastic SOP (SOP32-P-525-1.27-K)
32-pin plastic TSOP (TSOP I 32-P-814-0.50-K)
1A
1
PIN CONFIGURATION (TOP VIEW)
MSM27C401CZ
1
Vpp
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
1
Vpp
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
2
MSM27C401CZ
BLOCK DIAGRAM
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
Address Buffer
CE V
OE
CE PGMOE
Memory Matrix
Row Decoder
524,288X8-Bit
Column Decoder
D0
D1 D2 D3 D4 D5 D6 D7
PP
Multiplexer
Output Buffer
FUNCTION TABLE
MODE
READ
OUTPUT DISABLE
STAND-BY
PROGRAM
PROGRAM INHIBIT
PROGRAM VERIFY
*: Don't Care
3
CE
L
L
H
L
H
H
OE
L
H
*
H
H
L
V
PP
*
11.5V
V
CC
2.7V to 5.5V
6.25V
D0 - D7
D
OUT
Hi-Z
Hi-Z
D
IN
Hi-Z
D
OUT
ABSOLUTE MAXIMUM RATINGS
MSM27C401CZ
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 FOR READ
Parameter Symbol
VCC power supply voltage
VPP power supply voltage
Input "H" level
Input "L" level
Voltage is relative to Vss
V
CC
V
PP
V
IH
V
IL
Condition
VCC=2.7V - 5.5V
0 to 70
-55 to 125
+ 0.5
CC
(Ta=0 to 70°C)
Min. Max.
2.7
-0.5
Typ.
-
-
-
-
5.5
+0.5
V
CC
+0.52.2
V
CC
0.6-0.5
UnitValueCondition
°C
°C
V-0.5 to V
V-0.5 to VCC + 0.5
V-0.5 to 7
V-0.5 to 12.5
W1.0
Unit
V
V
V
V
4
MSM27C401CZ
ELECTRICAL CHARACTERISTICS (Read operation)
DC Characteristics 1
Parameter
Input leakage current
Output leakage current
power supply current
V
CC
(Standby)
V
power supply current
CC
(Read)
V
power supply current
PP
Input "H" level
Input "L" level
Output "H" level
Output "L" level
Voltage is relative to Vss
Symbol
I
LI
I
LO
I
CS1
I
CS2
I
CCA
I
PP
V
IH
V
IL
V
OH
V
OL
VI=0 to Vcc
VO=0 to Vcc
CE=V
IL ,
tc=150ns
I
CE=V
CE=V
OE=V
V
PP=VCC
=-200µA
OH
=1mA
OL
-
-
CC
IH
=3V±0.3V, Ta=0 to 70°C)
(V
CC
Min. Max.
IH
2.0
-0.5 V
VCC-0.4
Typ.
-
-
-
-
-mA
-
-
-
-
-
-
-
-
-
-
-
-
10
10
10
15
10
VCC+0.5
0.6
-
0.4
UnitCondition
µA
µA
µA
1
mA
µA
V
V
VI
DC Characteristics 2
Parameter
Input leakage current
Output leakage current
V
power supply current
CC
(Standby)
V
power supply current
CC
(Read)
V
power supply current
PP
Input "H" level
Input "L" level
Output "H" level
Output "L" level
Voltage is relative to Vss
Symbol
I
LI
I
LO
I
CS1
I
CS2
I
CCA
I
PP
V
IH
V
IL
V
OH
V
OL
VI=0 to Vcc
VO=0 to Vcc
CE=V
IL ,
tc=120ns
I
CE=V
CE=V
OE=V
V
PP=VCC
=-200µA
OH
=1mA
OL
(V
=3.3V±0.3V, Ta=0 to 70°C)
CC
Min. Max.
CC
IH
IH
-
-
2.0
-0.5
VCC-0.4
Typ.
-
-
-
-
-mA
-
-
-
-
-
-
-
-
-
-
-
-
10
10
10
1
20
10
VCC+0.5
0.6
-
0.4
UnitCondition
µA
µA
µA
mA
µA
V
V
V
VI
5
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