HEI HY62256ALLP-70, HY62256ALLP-85, HY62256ALLR1-55, HY62256ALLR1-70, HY62256ALLR1-85 Datasheet

HY62256A-(I) Series

32Kx8bit CMOS SRAM

Description Features

The
HY62256A/HY62256A-I
is a high-speed, low
power and 32,786 x 8-bits
CMOS Static Random
Access Memory
fabricated using
Hyundai's high
performance CMOS
process technology. The
HY62256A/HY62256A-I
has a data retention mode
that guarantees data to
remain valid at the
minimum power supply
voltage of 2.0 volt. Using
the CMOS technology,
supply voltages from 2.0
to 5.5 volt has little effect
on supply current in the
data retention mode. The
HY62256A/HY62256A-I
is suitable for use in low
voltage operation and
battery back-up
application.

·

Fully static operation and
Tri-state outputs

·

TTL compatible inputs
and outputs

·

Low power consumption

-2.0V(min.) data
retention

·

Standard pin
configuration

-28 pin 600 mil PDIP

-28 pin 330 mil SOP

-28 pin 8x13.4 mm
TSOP-1
(standard and reversed)

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Product No.

Voltage

(V)

Speed

(ns)

Operation

Current(mA)

Standby

Current(uA)

Temperature

(°C)

L LL
HY62256A 5.0 55/70/85 50 1mA 100 25 0-70(Normal)
HY62256A-I 5.0 55/70/85 50 1mA 100 - -40-85(E.T.)
Note

1. E T. Extended Temperature, Normal: Normal Temperature

2. Current value is max.

Features | Pins | Ratings | Timing | Package | Ordering

3101 North First Street, San Jose, CA 95134

Phone: [phone] URL: http://www.hea.com/

SRAM Data Sheets | Memory Products | email: [e-mail]

Copyright © 1997 Hyundai Electronics America.

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HYUNDAI ELECTRONICS AMERICA
HY62256A-(I) Series
32Kx8bit CMOS SRAM

PIN INFORMATION

PIN CONNECTION

BLOCK DIAGRAM

PIN DESCRIPTION

Pin Name Pin Function

/CS Chip Select
/WE Write Enable
/OE Output Enable
A0-A14 Address Inputs
I/O1-I/O8 Data Input/Output
Vcc Power(+5.0V)
Vss Ground

Features | Pins | Ratings | Timing | Package | Ordering

3101 North First Street, San Jose, CA 95134

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Phone: [phone] URL: http://www.hea.com/

SRAM Data Sheets | Memory Products | email: [e-mail]

Copyright © 1997 Hyundai Electronics America.

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HYUNDAI ELECTRONICS AMERICA
HY62256A-(I) Series
32Kx8bit CMOS SRAM

RATINGS INFORMATION

ABSOLUTE MAXIMUM RATING (1)

Symbol Parameter Rating Unit Remark

VCC VIN
VOUT

Power Supply Input/Output
Voltage

-0.5 to 7.0 V

TA Operating Temperature

0 to 70 °C HY62256A

-40 to 85 °C HY62256A-I
TSTG Storage Temperature -65 to 150 °C
PD Power Dissipation 1.0 W
IOUT Data OutPut Current 50 mA

TSOLDER

Lead Soldering Temperature
& Time

260 /10 °C / sec

Note

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS
may cause permanent damage to the device. This is stress rating only and the
functional operation of the device under these or any other conditions above
those indicated in the operation of this specification is not implied. Exposure to
the absolute maximum rating conditions for extended period may affect
reliability.

RECOMMENDED DC OPERATING CONDITIONS

TA=0°C to 70°C / TA= -40°C to 85°C (E.T.)

Symbol Parameter Min Typ Max Unit

VCC Power Supply Voltage 4.5 5.0 5.5 V
VIH Input High Voltage 2.2 - VCC+0.5 V
VIL Input Low Voltage -0.5(1) - 0.8 V
Note

1. VIL = -3.0V for pulse width less than 30ns

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