KM23C64000
64M-Bit (4Mx16) CMOS MASK ROM
FEATURES
•
4,194,304 x 16 bit organization
•
Fast access time : 120ns(Max.)
•
Supply voltage : single +5V
•
Current consumption
Operating : 70mA(Max.)
•
Fully static operation
•
All inputs and outputs TTL compatible
•
Three state outputs
•
Package
-. KM23C64000 : 42-DIP-600
CMOS MASK ROM
GENERAL DESCRIPTION
The KM23C64000 is a fully static mask programmable ROM
organized 4,194,304 x 16 bit. It is fabricated using silicon-gate
CMOS process technology.
This device operates with a 5V single power supply, and all
inputs and outputs are TTL compatible.
Because of its asynchronous operation, it requires no external
clock assuring extremely easy operation.
It is suitable for use in program memory of microprocessor and
data memory, character generator.
The KM23C64000 is packaged in a 42-DIP.
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATION
A
21
.
.
.
.
.
.
.
.
A
0
X
BUFFERS
AND
DECODER
MEMORY CELL
MATRIX
(4,194,304x16)
A
18
A
17
A
7
A
6
A
5
1
2
3
4
5
6
7
8
9
42 A
19
41 A
8
40 A
9
39 A
10
38 A
11
37 A
12
36 A
13
35 A
14
34 A
15
Y
BUFFERS
AND
DECODER
A
4
SENSE AMP.
BUFFERS
A
3
A
2
A
1
A
0
10
. . .
Q
0
Q
15
A
21
11
DIP
33 A
16
32 A
20
31 V
SS
30 Q
15
29 Q
7
28 Q
14
27 Q
6
26 Q
13
25 Q
5
24 Q
12
23 Q
4
22 V
CC
V
SS
12
OE 13
Q
0
14
OE
CONTROL
LOGIC
Q
8
15
Q
1
16
Q
9
Q
2
Q
10
17
18
19
Pin Name
A
0
- A
21
Q
0
- Q
15
OE
V
CC
V
SS
Pin Function
Address Inputs
Data Outputs
Output Enable
Power (+5V)
Ground
Q
3
20
Q
11
21
KM23C64000
KM23C64000
ABSOLUTE MAXIMUM RATINGS
Item
Voltage on Any Pin Relative to V
SS
Temperature Under Bias
Storage Temperature
Symbol
V
IN
T
BIAS
T
STG
Rating
CMOS MASK ROM
Unit
V
°C
°C
-0.3 to +7.0
-10 to +85
-55 to +150
NOTE
: Permanent device damage may occur if "ABSOLUTE MAXIMUM RATINGS" are exceeded. Functional operation should be restricted to the
conditions as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may
affect device reliability.
RECOMMENDED OPERATING CONDITIONS
(Voltage reference to V
SS
, T
A
=0 to 70°C)
Item
Supply Voltage
Supply Voltage
Symbol
V
CC
V
SS
Min
4.5
0
Typ
5.0
0
Max
5.5
0
Unit
V
V
DC CHARACTERISTICS
Parameter
Operating Current
Input Leakage Current
Output Leakage Current
Input High Voltage, All Inputs
Input Low Voltage, All Inputs
Output High Voltage Level
Output Low Voltage Level
Symbol
I
CC
I
LI
I
LO
V
IH
V
IL
V
OH
V
OL
I
OH
=-400µA
I
OL
=2.1mA
Test Conditions
OE=V
IL
, all outputs open
V
IN
=0 to V
CC
V
OUT
=0 to V
CC
Min
-
-
-
2.2
-0.3
2.4
-
Max
70
10
10
V
CC
+0.3
0.8
-
0.4
Unit
mA
µA
µA
V
V
V
V
NOTE
: Minimum DC Voltage(V
IL
) is -0.3V an input pins. During transitions, this level may undershoot to -2.0V for periods <20ns.
Maximum DC voltage on input pins(V
IH
) is V
CC
+0.3V which, during transitions, may overshoot to V
CC
+2.0V for periods <20ns.
MODE SELECTION
OE
H
L
Mode
Operating
Operating
Data
High-Z
Dout
Power
Active
Active
CAPACITANCE
(T
A
=25°C, f=1.0MHz)
Item
Output Capacitance
Input Capacitance
Symbol
C
OUT
C
IN
Test Conditions
V
OUT
=0V
V
IN
=0V
Min
-
-
Max
12
12
Unit
pF
pF
NOTE
: Capacitance is periodically sampled and not 100% tested.
KM23C64000
CMOS MASK ROM
AC CHARACTERISTICS
(T
A
=0°C to +70°C, V
CC
=5V±10%, unless otherwise noted.)
TEST CONDITIONS
Item
Input Pulse Levels
Input Rise and Fall Times
Input and Output timing Levels
Output Loads
Value
0.6V to 2.4V
10ns
0.8V and 2.0V
1 TTL Gate and C
L
=100pF
READ CYCLE
Item
Read Cycle Time
Address Access Time
Output Enable Access Time
Output Disable to Output High-Z
Output Hold from Address Change
Symbol
t
RC
t
AA
t
OE
t
DF
t
OH
0
KM23C64000-12
Min
120
120
60
20
0
Max
KM23C64000-15
Min
150
150
70
30
Max
Unit
ns
ns
ns
ns
ns
TIMING DIAGRAM
READ
ADD
A
0
~A
21
t
OE
OE
t
OH
D
OUT
D
0
~D
15
VALID DATA
VALID DATA
ADD1
t
RC
t
AA
ADD2
t
DF(Note)
NOTE :
t
DF
is defined as the time at which the outputs achieve the open circuit condition and is not referenced to V
OH
or V
OL
level.
KM23C64000
PACKAGE DIMENSIONS
42-DIP-600
CMOS MASK ROM
(Unit : mm/inch)
0.25
+0.10
-0.05
0.010
+0.004
-0.002
#42
#22
#1
52.82 MAX
2.080
52.42±
0.20
2.064±
0.008
#21
3.91±
0.20
0.154±
0.008
5.08
0.200MAX
15.24
0.600
13.80±
0.20
0.543±
0.008
0~15°
( 0.81 )
0.032
0.46±
0.10
0.018±
0.004
1.27±
.10
0.050±
0.004
2.54
0.100
3.1±
0.30
0.122±
0.012
0.38 MIN
0.015
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