KM23C64000G
64M-Bit (8Mx8 /4Mx16) CMOS MASK ROM
FEATURES
•
Switchable organization
8,388,608 x 8(byte mode)
4,194,304 x 16(word mode)
•
Fast access time : 120ns(Max.)
•
Supply voltage : single +5V
•
Current consumption
Operating : 70mA(Max.)
Standby : 50µA(Max.)
•
Fully static operation
•
All inputs and outputs TTL compatible
•
Three state outputs
•
Package
-. KM23C64000G : 44-SOP-600
CMOS MASK ROM
GENERAL DESCRIPTION
The KM23C64000G is a fully static mask programmable ROM
fabricated using silicon gate CMOS process technology, and is
organized either as 8,388,608 x 8 bit(byte mode) or as
4,194,304 x 16 bit(word mode) depending on BHE voltage
level.(See mode selection table)
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 KM23C64000G is packaged in a 44-SOP.
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATION
A
21
.
.
.
.
.
.
.
.
A
0
A
-1
X
BUFFERS
AND
DECODER
MEMORY CELL
MATRIX
(4,194,304x16/
8,388,608x8)
A
21
A
18
A
17
A
7
A
6
A
5
1
2
3
4
5
6
7
8
9
11
44 A
20
43 A
19
42 A
8
41 A
9
40 A
10
39 A
11
38 A
12
37 A
13
36 A
14
35 A
15
34 A
16
33 BHE
32 V
SS
31 Q
15
/A
-1
30 Q
7
29 Q
14
28 Q
6
27 Q
13
26 Q
5
25 Q
12
24 Q
4
23 V
CC
Y
BUFFERS
AND
DECODER
SENSE AMP.
BUFFERS
A
4
A
3
A
2
A
0
A
1
10
CE 12
V
SS
13
OE 14
Q
0
Q
8
Q
1
Q
9
Q
2
Q
10
15
16
17
18
19
20
21
22
SOP
. . .
CE
OE
BHE
CONTROL
LOGIC
Q
0
/Q
8
Q
7
/Q
15
Pin Name
A
0
- A
21
Q
0
- Q
14
Q
15
/A
-1
BHE
CE
OE
V
CC
V
SS
Pin Function
Address Inputs
Data Outputs
Output 15(Word mode)/
LSB Address(Byte mode)
Word/Byte selection
Chip Enable
Output Enable
Power (+5V)
Ground
Q
3
Q
11
KM23C64000G
KM23C64000G
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
Standby Current(TTL)
Standby Current(CMOS)
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
SB1
I
SB2
I
LI
I
LO
V
IH
V
IL
V
OH
V
OL
I
OH
=-400µA
I
OL
=2.1mA
Test Conditions
CE=OE=V
IL
, all outputs open
CE=V
IH
, all outputs open
CE=V
CC
, all outputs open
V
IN
=0 to V
CC
V
OUT
=0 to V
CC
Min
-
-
-
-
-
2.2
-0.3
2.4
-
Max
70
1
50
10
10
V
CC
+0.3
0.8
-
0.4
Unit
mA
mA
µA
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
CE
H
L
L
OE
X
H
L
BHE
X
X
H
L
Q
15
/A
-1
X
X
Output
Input
Mode
Standby
Operating
Operating
Operating
Data
High-Z
High-Z
Q
0
~Q
15
: Dout
Q
0
~Q
7
: Dout
Q
8
~Q
14
: High-Z
Power
Standby
Active
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.
KM23C64000G
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
Chip Enable Access Time
Address Access Time
Output Enable Access Time
Output or Chip Disable to
Output High-Z
Output Hold from Address Change
Symbol
t
RC
t
ACE
t
AA
t
OE
t
DF
t
OH
0
KM23C64000G-12
Min
120
120
120
60
20
0
Max
KM23C64000G-15
Min
150
150
150
70
30
Max
Unit
ns
ns
ns
ns
ns
ns
TIMING DIAGRAM
READ
ADD
A
0
~A
21
A
-1(*1)
t
ACE
CE
t
OE
OE
t
OH
D
OUT
D
0
~D
7
D
8
~D
15(*2)
VALID DATA
VALID DATA
t
AA
ADD1
t
RC
ADD2
t
DF(*3)
NOTES :
*1. Byte Mode only. A
-1
is Least Significant Bit Address.(BHE = V
IL
)
*2. Word Mode only.(BHE = V
IH
)
*3. 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.
KM23C64000G
PACKAGE DIMENSIONS
44-SOP-600
#44
#23
CMOS MASK ROM
(Unit : mm/inch)
0~8°
16.04±
0.30
12.60±
0.20
0.631±
0.012
0.496±
0.008
15.24
0.600
0.80±
0.20
0.031±
0.008
0.10 MAX
0.004 MAX
#1
#22
+0.10
-0.05
0.008
+0.004
-0.002
0.20
2.80±
0.20
0.110±
0.008
3.10
0.122 MAX
28.95
MAX
1.140
28.50±
0.20
1.122±
0.008
( 0.915 )
0.036
+0.100
-0.050
+0.004
0.016
-0.002
0.40
1.27
0.050
0.05
MIN
0.002
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