KM23C64000ATY
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 : 100ns(Max.)
•
Supply voltage : single +5.0V
•
Current consumption
Operating : 70mA(Max.)
Standby : 50µA(Max.)
•
Fully static operation
•
All inputs and outputs TTL compatible
•
Three state outputs
•
Package
KM23C64000ATY : 48-TSOP1-1218
CMOS MASK ROM
GENERAL DESCRIPTION
The KM23C64000ATY 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 5.0V 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 KM23C64000ATY is packaged in a 48-TSOP1.
FUNCTIONAL BLOCK DIAGRAM
Pin Name
A
21
.
.
.
.
.
.
.
.
A
0
A
-1
. . .
CE
OE
BHE
CONTROL
LOGIC
Q
0
/Q
8
Q
7
/Q
15
X
BUFFERS
AND
DECODER
MEMORY CELL
MATRIX
(4,194,304x16/
8,388,608x8)
Q
15
/A
-1
BHE
Y
BUFFERS
AND
DECODER
DATA OUT
BUFFERS
CE
SENSE AMP.
OE
V
CC
Vss
N.C
A
0
- A
21
Q
0
- Q
14
Pin Function
Address Inputs
Data Outputs
Output 15(Word mode)/
LSB Address(Byte mode)
Word/Byte selection
Chip Enable
Output Enable
Power
Ground
No Connection
KM23C64000ATY
PIN CONFIGURATION
CMOS MASK ROM
BHE
A
16
A
15
A
14
A
13
A
12
A
11
A
10
A
9
A
8
A
19
A
21
A
20
A
18
A
17
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
CE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
TSOP1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
V
SS
V
SS
Q
15/
A-
1
Q
7
Q
14
Q
6
Q
13
Q
5
Q
12
Q
4
V
CC
V
CC
N.C
Q
11
Q
3
Q
10
Q
2
Q
9
Q
1
Q
8
Q
0
OE
V
SS
V
SS
KM23C64000ATY
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
-0.3 to +7.0
-10 to +85
-55 to +150
Unit
V
°C
°C
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
-
-
2.2
-0.3
2.4
-
Min
-
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.
KM23C64000ATY
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
CMOS MASK ROM
Data
High-Z
High-Z
Q
0
~Q
15
: Dout
Q
0
~Q
7
: Dout
Q
8
~Q
14
: Hi-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.
AC CHARACTERISTICS
(T
A
=0°C to +70°C,V
CC
=5.0V±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
KM23C64000ATY-10
Min
100
100
100
50
20
0
Max
KM23C64000ATY-12
Min
120
120
120
60
20
Max
Unit
ns
ns
ns
ns
ns
ns
KM23C64000ATY
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
t
AA
CMOS MASK ROM
ADD1
t
RC
ADD2
t
DF(*3)
VALID DATA
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.
KM23C64000ATY
PACKAGE DIMENSIONS (48-TSOP1-1218)
CMOS MASK ROM
(Unit : mm/inch)
18.00±
0.20
0.709±
0.008
#1
0.008
+0.003
-0.001
0.20
+0.07
-0.03
#48
0.25
)
0.010
12.40
MAX
0.488
12.0
0.472
0.005
+0.003
-0.001
1.00±
0.10
0.039±
0.004
1.20
0.047 MAX
0.05
0.002 MIN
0.10 MAX
0.004 MAX
(
#25
16.40±
0.10
0.646±
0.004
(
0.45~0.75
0.018~0.030
0.50
)
0.020
0.125
+0.075
-0.035
0.50
0.0197
#24
0.25
TYP
0.010
0~8°
FPGA/CPLD
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