HT62L256-28TSOP-A 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT62L256-28TSOP-A Datasheet PDF : 10 Pages
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Preliminary
HT62L256
Pin Description
Pin Name I/O
Description
A0~A14
I Address input pins
WE
I Write enable signal pin, active LOW
OE
I Output enable signal pin, active LOW
CS
I Chip select signal pin, active LOW
D0~D7
I/O Data input and output signal pins
VDD
¾ Positive power supply
VSS
¾ Negative power supply, ground
Absolute Maximum Rating
VDD to VSS ........................................... -0.5V to +3.6V
IN, IN/OUT Voltage to VSS ............. -0.5V to VDD+0.5V
Power Consumption, PT .......................................0.7W
Operating Temperature, TOP ......................0°C to 70°C
Storage Temperature (Plastic), Tstg ... -55°C to 125°C
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
Ta=25°C, VDD=3.0V±10%, TOP=0°C to 70°C
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VDD
Operating Voltage
¾
2.7
3.0
3.3
V
VIL
Input Low Voltage
¾
¾
0
0.4
V
VIH
Input High Voltage
¾
ILI
Input Leakage Current
VIN=0 to VDD
0.7´VDD
¾
V
¾
¾
1
mA
ILO
Output Leakage Current
CS=VIH or OE=VIH,
VOUT=0 to VDD
VOL
Output Low Voltage
VDD=Max, IOL=2mA
¾
¾
1
mA
¾
¾
0.3
V
VOH
IDD
Output High Voltage
Operating Current
VDD=Min, IOH=-1mA
CS=VIH, IOUT=0mA
VDD-0.3 ¾
¾
¾
¾
V
20
mA
ISB1
Standby Current
CS=VIH, IOUT=0mA
¾
¾
50
mA
ISB2
Power Down Supply Current CS ³ VDD - 0.2V, VIN³0V
¾
2
10
mA
Rev. 0.00
2
August 15, 2002
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