HT23C128
Pin Assignment
N
C
2
2
2
2
2
2
2
2
2
1
1
1
1
1
8
7
6
5
4
3
2
1
0
9
8
7
6
5
V
O
A
A
A
A
O
A
C
D
D
D
D
D
C
C
1
2
3
4
5
6
7
8
9
1
1
1
1
1
A
1
2
E
1
/
O
E
1
/
N
C
A
A
A
A
A
A
A
A
7
6
5
4
3
2
1
0
1
8
9
1
3
1
0
E
/
O
E
/
N
C
1
E
7
6
5
4
3
/
C
E
/
O
E
2
/
O
E
2
0
1
2
3
4
D
D
D
0
1
2
V
S
S
H
T
2
3
C
1
2
8
2
8
D
I
P
-
A
/
S
O
P
-
A
Pin Description
Pin Name
NC
I/O
Description
No connection
¾
I
A0~A13
Address inputs
Data outputs
D0~D7
O
I
VSS
Negative power supply, ground
CE/CE/OE2/OE2
OE/OE/NC
OE1/OE1/NC
VCC
I
Chip enable/Output enable input
Output enable input
I
I
Output enable input
I
Positive power supply
Absolute Maximum Ratings
Supply Voltage ............................................-0.3V to 6V
Input Voltage....................................-0.3V to VCC+0.3V
Storage Temperature............................-50°C to 125°C
Operating Temperature...........................-40°C to 85°C
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.
D.C. Characteristics
Supply voltage: 2.7V~3.6V
Ta=-40°C to 85°C
Test Conditions
Conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
VCC
¾
VCC
ICC
VIL
Operating Voltage
Operating Current
Input Low Voltage
Input High Voltage
2.7
3.6
10
V
mA
V
¾
¾
¾
¾
¾
3V
3V
3V
O/P Unload, f=5MHz
¾
VSS
0.4
VCC
¾
¾
VIH
2.0
V
Rev. 1.10
2
August 30, 2002
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
