Manual
Pin Description
Pin Name I/O Description
CS I Chip select input
SK I Serial clock input
DI I Serial data input
DO O Serial data output
VSS
¾
Negative power supply, ground
ORG I
Internal Organization
When ORG is connected to VDD or ORG is floated, the (´16) memory organization is se
-
lected. When ORG is tied to VSS, the (´8) memory organization is selected. There is an in
-
ternal pull-up resistor on the ORG pin. (HT93LC56-A)
NC
¾
No connection
VCC
¾
Positive power supply
Absolute Maximum Ratings
Operation Temperature (Commercial)..........................................................................................................0°Cto70°C
Applied V
CC
Voltage with Respect to VSS..................................................................................................-0.3V to 6.0V
Applied Voltage on any Pin with Respect to VSS
..................................................................................................
V
SS
-0.3V to V
CC
+0.3V
Supply READ Voltage ....................................................................................................................................2V to 5.5V
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² 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
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
CC
Conditions
V
CC
Operating Voltage
¾
Read 2.0
¾
5.5 V
Write 2.4
¾
5.5 V
I
CC1
Operating Current (TTL) 5V DO unload, SK=1MHz
¾¾
5mA
I
CC2
Operating Current (CMOS)
5V DO unload, SK=1MHz
¾¾
5mA
2~5.5V DO unload, SK=250kHz
¾¾
5mA
I
STB
Standby Current (CMOS) 5V CS=SK=DI=0V
¾¾
10
mA
I
LI
Input Leakage Current 5V
V
IN
=V
SS
~V
CC
0
¾
1
mA
I
LO
Output Leakage Current 5V
V
OUT
=V
SS
~V
CC
, CS=0V
0
¾
1
mA
V
IL
Input Low Voltage
5V
¾
0
¾
0.8 V
2~5.5V
¾
0
¾
0.1V
CC
V
V
IH
Input High Voltage
5V
¾
2
¾
V
CC
V
2~5.5V
¾
0.9V
CC
¾
V
CC
V
V
OL
Output Low Voltage
5V
I
OL
=2.1mA
¾¾
0.4 V
2~5.5V
I
OL
=10mA ¾¾
0.2 V
V
OH
Output High Voltage
5V
I
OH
=-400mA
2.4
¾¾
V
2~5.5V
I
OH
=-10mAV
CC
-0.2 ¾¾
V
C
IN
Input Capacitance
¾
V
IN
=0V, f=250kHz
¾¾
5pF
C
OUT
Output Capacitance
¾
V
OUT
=0V, f=250kHz
¾¾
5pF
HT93LC56
Rev. 1.20 2 October 26, 2001