HT62L256-28TSOP-A 查看數據表（PDF） - Holtek Semiconductor

零件编号

产品描述 (功能)

比赛名单

HT62L256-28TSOP-A

CMOS 32K
x8 Low Power SRAM

Holtek Semiconductor 

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

Share Link: