SANYO LC36256AML-85, LC36256AML-70, LC36256AML-12, LC36256AML-10, LC36256AL-12 Datasheet

Ordering number : EN4163A

Asynchronous Silicon Gate CMOS LSI

LC36256AL, AML-70/85/10/12

256 K (32768 words × 8 bits) SRAM

Overview

The LC36256AL, AML are fully asynchronous silicon gate CMOS static RAMs with an 32768 words × 8 bits configuration.

This series have CE chip enable pin for device select/nonselect control and an OE output enable pin for output control, and features high speed as well as low power dissipation.

For these reasons, the series is especially suited for use in systems requiring high speed, low power, and battery backup, and it is easy to expand memory capacity.

Features

•Access time

70 ns (max.) : LC36256AL-70, LC36256AML-70 85 ns (max.) : LC36256AL-85, LC36256AML-85 100 ns (max.) : LC36256AL-10, LC36256AML-10 120 ns (max.) : LC36256AL-12, LC36256AML-12

•Low current dissipation

During standby
2	µA (max.)	/ Ta = 25°C
5	µA (max.)	/ Ta = 0 to +40°C
25 µA (max.)		/ Ta = 0 to +70°C
During data retention
1	µA (max.)	/ Ta = 25°C
2	µA (max.)	/ Ta = 0 to +40°C
10 µA (max.)		/ Ta = 0 to +70°C

During operation (DC) 10 mA (max.)

•Single 5 V power supply: 5 V ±10%

•Data retention power supply voltage: 2.0 to 5.5 V

•No clock required (Fully static memory)

•All input/output levels are TTL compatible

•Common input/output pins, with three output states

•Packages

DIP 28 -pin (600 mil) plastic package : LC36256AL SOP 28-pin (450 mil) plastic package : LC36256AML

Package Dimensions

unit: mm

3012A - DIP28

[LC36256AL]

SANYO: DIP28

unit : mm

3187 - SOP28D

[LC36256AML]

SANYO: SOP28D

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN

22896HA (OT)/21593JN (OT) No. 4163-1/7

LC36256AL, AML-70/85/10/12

Pin Assignment

Block Diagram

Pin Functions

A0 to A14			Address input
	WE		Read/write control input
			Output enable input
	OE
			Chip enable input
	CE
I/O1 to I/O8			Data input/output
VCC, GND			Power supply pins

Functions

Mode	CE			OE			WE			I/O	Supply current
Read cycle		L			L			H		Data output	ICCA
Write cycle		L			X			L		Data input	ICCA
Output disable		L			H			H		High impedance	ICCA
Nonselect		H			X			X		High impedance	ICCS
X : H or L

No. 4163-2/7

LC36256AL, AML-70/85/10/12

Specifications

Absolute Maximum Ratings at Ta=25°C

	Parameter	Symbol	Conditions	Ratings	Unit
	Maximum supply voltage	VCC max		7.0	V
	Input pin voltage	VIN		–0.5* to VCC+0.5	V
	I/O pin voltage	VI/O		–0.5* to VCC+0.5	V
	Allowable power dissipation	Pd max	LC36256AL	1.0	W
			LC36256AML	0.7	W
	Operating temperature range	Topr		0 to +70	°C
	Storage temperature range	Tstg		–55 to +150	°C

* –3.0 V when pulse width is less than 50 ns

DC Recommended Operating Ranges at Ta = 0 to +70°C

Parameter	Symbol	min	typ	max	Unit
Power supply voltage	VCC	4.5*	5.0	5.5	V
Input high level voltage	VIH	2.2*		VCC+0.3	V
Input low level voltage	VIL	–0.3*		+0.8	V

* –3.0 V when pulse width is less than 50 ns

DC Electrical Characteristics at Ta = 0 to +70°C, VCC = 5 V ± 10%

Parameter

Symbol

Conditions

min

typ*

max

Unit

Input leakage current

ILI

VIN = 0 to VCC

–0.5

+0.5

µA

V

= VIH or V

= VIH,

I/O leakage current

ILO

CE

OE

–0.5

+0.5

µA

VI/O = 0 to VCC

Output high level voltage

VOH

IOH = –1.0mA

2.4

V

Output low level voltage

VOL

IOL = 2.1mA

0.4

V

V

≤ 0.2V,

Operating supply

ICCA1

CE

1

5

mA

VIN ≤ 0.2V or VIN ≥ VCC–0.2V

current (DC)

ICCA2

V

= VIL, II/O=0mA

3

10

mA

CE

min cycle

70ns

30

50

Average operating

ICCA3

Access

85ns

25

50

mA

Duty = 100%

supply current

time

100ns

23

50

I I/O = 0mA

120ns

20

50

0 to +70°C

25

V

≥VCC-0.2V

Standby supply

ICCS1

0 to +40°C

5

µA

CE

current

25°C

0.5

2

ICCS2

V

= VIH

0.4

2

mA

CE

* Reference values at VCC = 5 V, Ta = 25°C

No. 4163-3/7