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Part Number MSM27C1655CZ

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1
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The MSM27C1655CZ is a 16Mbit electrically Programmable Read-Only Memory with page mode.
Its configuration can be electrically switched between 524,288 double word x 32bit and 1,048,576
word x 16bit. The MSM27C1655CZ operates on a single +5V power supply and is TTL compatible.
The MSM27C1655CZ provides Page mode which can greatly reduce the read access time. Since
the MSM27C1655CZ operates asynchronously , external clocks are not required , making this device
easy-to-use. The MSM27C1655CZ 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
70-pin SSOP , 70-pin TSOP packages.
1A
MSM27C1655CZ
524,288-Double Word x 32-Bit or 1,048,576-Word x 16-Bit
4-Double Word x 32-Bit or 8-Word x 16-Bit Page Mode One Time PROM
DESCRIPTION
FEATURES
· 524,288 double word x 32bit / 1,048,576 word x 16bit electrically switchable configuration
· Single +5V power supply
· Access time 100ns
Page mode access time 30ns
· Input / Output TTL compatible
· Three-state output
· Packages
70-pin plastic SSOP (SSOP70-P-500-0.80-K)
70-pin plastic TSOP (TSOPII70-P-400-0.65-K)
Semiconductor
2
PIN CONFIGURATION (TOP VIEW)
MSM27C1655CZ
PIN NAMES
FUNCTIONS
D31/A-1
Data output / Address input
A0 - A18
Address input
D0 - D30
Data output
CE
OE
Output enable
V
CC
Power supply voltage
WORD
Mode switch
Chip enable
V
SS
GND
56
A3
D28
D12
D11
D26
D10
V
SS
V
CC
D25
D24
D8
V
CC
NC
A18
A17
A16
A15
A14
A13
D27
55
54
53
4
5
6
7
52
51
50
49
8
9
10
11
48
47
46
45
12
13
14
15
44
43
42
41
16
17
18
19
40
39
38
37
20
21
22
23
36
24
D13
A4
A5
D0
D16
D1
D17
V
SS
V
CC
D2
D18
D3
D19
D4
D20
D5
D21
V
SS
V
CC
D6
59
A0
V
CC
58
1
2
V
SS
A1
A2
57
3
70-pin SSOP , TSOP
D29
60 D14
61 D30
62 D15
63 D31/A-1
64 V
SS
65 CE
66 OE
67 WORD
68 NC
69 NC
70 V
PP
25
D22
26
D7
27
D23
28
V
SS
29
A6
30
A7
31
A8
32
A9
33
A10
34
A11
35
A12
NC
Non connection
V
PP
Program power supply voltage
V
CC
D9
3
BLOCK DIAGRAM
FUNCTION TABLE
MSM27C1655CZ
STAND-BY
OUTPUT DISABLE
READ (16-Bit)
READ (32-Bit)
MODE
D31/A-1
CE
OE
V
PP
L
L
D
OUT
L
L
L/H
L
H
L
*
H
*
H
L
* : Don't Care
4.5V
to
5.5V
D16 - D30
D0 - D15
H
L
D
OUT
Hi-Z
H
Hi-Z
*
Hi-Z
PROGRAM
L
H
D
IN
PROGRAM INHIBIT
H
H
Hi-Z
PROGRAM VERIFY
H
L
D
OUT
L
6.25V
WORD
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
D0
CE
WORD
OE
CE
PGM
OE
Address Buffer
Row Decoder
Column Decoder
Memory Matrix
Multiplexer & Page Data Latch
Output Buffer
D1
X16/X32 Switch
A-1
In 16-bit output mode, these pins are
three-stated and pin D31 functions
as the A-1 address pin.
524,288X32-Bit or 1,048,576X16-Bit
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D31
D30
V
CC
11.5V
*
Hi-Z
Hi-Z
L/H
L/H
4
Operating temperature under bias
Storage temperature
Input voltage
Output voltage
Power supply voltage
Program power supply voltage
Power dissipation per package
Parameter
Symbol
Topr
Unit
Value
Condition
RECOMMENDED OPERATING CONDITIONS FOR READ
V
CC
power supply voltage
V
PP
power supply voltage
Input "H" level
Input "L" level
Parameter
Symbol
V
CC
Unit
5.5
Typ.
4.5
Condition
T
stg
V
I
V
O
V
CC
V
PP
P
D
0 to 70
-55 to 125
V
-0.5 to V
CC
+ 0.5
V
-0.5 to V
CC
+ 0.5
V
-0.5 to 7
V
-0.5 to 12.5
W
1.0
-
relative to V
SS
(Ta=0 to 70
°
C)
Min.
Max.
V
V
CC
+0.5
-0.5
-
V
V
CC
+0.5
2.2
-
V
0.8
-0.5
-
V
V
PP
V
IH
V
IL
V
CC
=4.5V-5.5V
Voltage is relative to Vss
ABSOLUTE MAXIMUM RATINGS
-
-
MSM27C1655CZ
°
C
°
C
ns
0.45
-
5
ELECTRICAL CHARACTERISTICS (Read operation)
DC Characteristics
Input leakage current
Output leakage current
V
CC
power supply current
(Standby)
V
CC
power supply current
(Read)
V
PP
power supply current
Parameter
Symbol
Unit
Condition
(V
CC
=5V
±
0.5V, Ta=0 to 70
°
C)
Input "H" level
Input "L" level
Output "H" level
Output "L" level
Voltage is relative to Vss
10
Typ.
-
Min.
Max.
I
LO
I
CS1
I
CS2
I
CCA
µ
A
-
10
-
µ
A
-
50
-
µ
A
-
CE=V
CC
1
-
CE=V
IH
120
-
mA
tc=100ns
-
-
I
PP
V
IH
V
IL
V
OH
V
OL
10
µ
A
V
PP
=V
CC
V
CC
+0.5
2.2
V
-
0.8
-0.5
V
-
-
V
I
OH
=-400
µ
A
-
V
I
OL
=2.1mA
-
-
-
CE=V
IL ,
OE=V
IH
V
I
=0 to Vcc
V
O
=0 to Vcc
MSM27C1655CZ
mA
-
400
100pF (including jig capacitance)
1.7V
Output
AC Characteristics
Address access time
CE access time
OE access time
Output disable time
Parameter
Symbol
T
ACC
Unit
-
Condition
(V
CC
=5V
±
0.5V, Ta=0 to 70
°
C)
Min.
Max.
T
CE
ns
CE=OE=V
IL
-
ns
OE=V
IL
30
-
ns
CE=V
IL
30
0
ns
OE=V
IL
25
0
ns
-
0
T
OE
T
OH
CE=V
IL
CE=OE=V
IL
Output hold time
100
100
T
CHZ
T
OHZ
Address access cycle time
T
C
100
ns
-
-
0V/3V
0.8V/2.0V
1TTL gate + 100pF
0.8V/2.0V
Measurement conditions
Input signal level
Input timing reference level
Output load
Output timing reference level
120
-
30
-
-
30
ns
ns
ns
Page set up time
Page access cycle time
Page access time
T
PSET
T
PC
T
PAC
-
-
NOTE(1)
NOTE(1) T
PSET
is defined as the end of either CE trailing edge or address transition in random access
term until the first page address transition.
I
LI
2.4
MSM27C1655CZ
A0 - A1 (X32 mode)
A-1 - A1 (X16 mode)
6
ADDRESS
t
OH
t
CE
t
CHZ
t
OE
t
OHZ
t
ACC
CE
OE
Valid Data
Hi-Z
Hi-Z
DOUT
t
OH
t
CE
t
CHZ
t
OE
t
OHZ
t
ACC
CE
OE
Hi-Z
Hi-Z
TIMING CHART
NORMAL MODE READ CYCLE
PAGE MODE READ CYCLE
t
PAC
t
PAC
DOUT
t
PSET
t
PSET
t
C
t
C
A2 - A18
t
PC
t
PC
7
ELECTRICAL CHARACTERISTICS (Programming operation)
DC Characteristics
Input leakage current
V
PP
power supply current (Program)
V
CC
power supply current
Parameter
Symbol
I
LI
Unit
10
Typ.
-
Condition
(Ta=25
°
C
±
5
°
C)
Min.
Max.
Input "L" level
I
PP2
I
CC
V
IH
V
IL
µ
A
-
V
I
=V
CC
+0.5V
50
-
mA
-
CE=V
IL
100
-
mA
-
-
V
CC
+0.5
2.2
V
-
0.8
-0.5
V
-
-
11.5
-
Voltage is relative to Vss
Input "H" level
V
OH
-
2.4
V
I
OH
=-400
µ
A
-
Output "H" level
V
OL
0.45
-
V
I
OL
=2.1mA
-
Output "L" level
V
PP
11.75
11.25
V
-
Program voltage
V
CC
power supply voltage
V
CC
6.5
6.0
V
6.25
-
AC Characteristics
Address set-up time
OE set-up time
Data set-up time
Parameter
Symbol
T
AS
Unit
-
Typ.
2
Condition
Min.
Max.
Data hold time
T
OES
T
DS
T
AH
T
DH
µ
s
-
-
2
µ
s
-
-
2
µ
s
-
-
-
0
µ
s
-
-
2
µ
s
-
-
-
Address hold time
T
DFP
130
0
ns
-
Output float delay from OE
T
VS
-
2
µ
s
-
V
PP
voltage set-up time
Program pulse width
T
PW
27
23
µ
s
25
-
Data valid from OE
T
OE
150
-
ns
-
-
-
-
-
-
(Vcc=6.25V
±
0.25V,Vpp=11.5V
±
0.25V,Ta=25
°
C
±
5
°
C)
MSM27C1655CZ
8
A-1 - A18
CE
D0 - D15
Programming Waveform
OE
V
PP
PIN Capacitance
Input
V
PP
Parameter
C
IN1
Unit
12
Typ.
-
(V
CC
=5V, Ta=25
°
C, f=1MHz)
Min.
Max.
C
IN2
pF
-
V
I
=0V
60
-
-
Output
C
OUT
15
-
-
V
O
=0V
Symbol
Condition
MSM27C1655CZ
D16 - D30
Hi-Z
t
AS
t
PW
t
AH
t
OES
t
DFP
t
DS
t
DH
t
OE
t
VS
Program
Program Verify
D
IN
D
OUT
9
MSM27C1655CZ
X=0
High Speed Programming Algorithm ( I )
V
CC
=6.25V
V
PP
=11.5V
X=X+1
YES
PASS
NO
NG
YES
NG
PASS
V
CC
=5.5V
V
PP
=5.5V
Start
X=10 ?
Increment Address
Verify (One Byte)
Last Address ?
Compare All
Device Passed
Device Failed
Program 25
µ
s
First Address
V
CC
=4.5V
V
PP
=4.5V
PASS
Compare All
NO
NG
10
MSM27C1655CZ
High Speed Programming Algorithm ( II )
Program 25
µ
s
X=0
V
CC
=6.25V
V
PP
=11.5V
X=X+1
YES
PASS
NO
NG
PASS
V
CC
=5.5V
V
PP
=5.5V
Start
X=10 ?
Increment Address
Verify (One Byte)
Last Address ?
Compare All
Device Passed
Device Failed
Program 25
µ
s
First Address
V
CC
=4.5V
V
PP
=4.5V
PASS
Compare All
NG
First Address
Last Address ?
NO
Increment Address
YES
NG
YES
NO
Semiconductor
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The information contained herein can change without notice owing to product and/or technical im-
provements. Before using the product, please make sure that the information being referred to is up-to-
date.
The outline of action and examples for application circuits described herein have been chosen as an
explanation for the standard action and performance of the product. When planning to use the product,
please ensure that the external conditions are reflected in the actual circuit, assembly, and program
designs.
When designing your product, please use our product below the specified maximum ratings and within
the specified operating ranges including, but not limited to, operating voltage, power dissipation, and
operating temperature.
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dling, or unusual physical or electrical stress including, but not limited to, exposure to parameters be-
yond the specified maximum ratings or operation outside the specified operating range.
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Copyright 1998 Oki Electric Industry Co., Ltd.
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