Mosel Vitelic V62C51864LL-70P, V62C51864LL-70PI, V62C51864LL-70FI, V62C51864LL-70F, V62C51864LL-35PI Datasheet

MOSEL VITELIC

1

V62C51864
8K X 8 STATIC RAM

PRELIMINARY

V62C51864 Rev. 2.1 June 1998

Features

■

High-speed: 35, 70 ns

■

Ultra low DC operating current of 5mA (max.)

■

Low Power Dissipation:
– TTL Standby: 2 mA (Max.)
– CMOS Standby: 15

m

A (Max.)

■

Fully static operation

■

All inputs and outputs directly compatible

■

Three state outputs

■

Ultra low data retention current (V

CC

= 2V)

■

Single 5V

±

10% Power Supply

■

Packages
– 28-pin 600 mil PDIP
– 28-pin 330 mil SOP (450 mil pin-to-pin)

Description

The V62C51864 is a 65,536-bit static random
access memory organized as 8,192 words by 8
bits. It is built with MOSEL VITELIC’s high
performance CMOS process. Inputs and three­state outputs are TTL compatible and allow for
direct interfacing with common system bus
structures.

Device Usage Chart

Operating

Temperature

Range

Package Outline Access Time (ns) Power

Temperature

MarkP F 35 70 L LL

0

°

C to 70

°

C • • • • • • Blank

–40

°

C to +85

°

C• • •••• I

Functional Block Diagram

Row

Decoder

512 x 128

Memory Array

Input
Data

Circuit

Column I/O

Column Decoder

Control

Circuit

V

CC

GND

A

0

51864 01

A

8

I/O

0

I/O

7

CE

2

OE

WE

CE

1

A

9

A

12

2

V62C51864 Rev. 2.1 June 1998

MOSEL VITELIC

V62C51864

Pin Descriptions

A

0

–A

12

Address Inputs

These 13 address inputs select one of the 8,192 x
8-bit words in the RAM.

CE

1

, CE

2

Chip Enable Inputs

CE

1

is active LOW and CE

2

is active HIGH. Both
chip enables must be active to read from or write to
the device. If either chip enable is not active, the
device is deselected and is in a standby power
mode. The I/O pins will be in the high-impedance
state when deselected.

OE

Output Enable Input

The Output Enable input is active LOW. When OE
is LOW with CE

1

LOW, CE

2

HIGH, and WE HIGH,
data of the selected memory location will be
available on the I/O pins. When OE is HIGH, the I/O
pins will be in the high impedance state.

WE Write Enable Input

An active LOW input, WE input controls read and
write operations. When CE

1

and WE inputs are

both LOW with CE

2

HIGH, the data present on the
I/O pins will be written into the selected memory
location.

I/O

0

–I/O

7

Data Input/Output Ports

These 8 bidirectional ports are used to read data
from and write data into the RAM.

V

CC

Power Supply

GND Ground

Pin Configuration

28-Pin Plastic DIP/SOP

Top View

V

CC

A

8

A

9

A

11

A

10

OE

I/O

0

I/O

1

I/O

2

GND

A

0

A

1

A

2

A

3

A

4

A

5

I/O

7

I/O

6

I/O

5

I/O

4

51864 02

CE

2

WE

1
2
3
4
5
6
7
8
9
10
11
12
13
14

28
27
26
25
24
23
22
21
20
19
18
17
16
15

NC
A

12

A

6

A

7

I/O

3

CE

1

MOSEL VITELIC

V62C51864

3

V62C51864 Rev. 2.1 June 1998

Part Number Information

Absolute Maximum Ratings

(1)

NOTE:

1. Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

Symbol Parameter Commercial Industrial Units

V

CC

Supply Voltage -0.5 to +7 -0.5 to +7 V

V

N

Input Voltage -0.5 to +7 -0.5 to +7 V

V

DQ

Input/Output Voltage Applied V

CC

+ 0.5 V

CC

+ 0.5 V

T

BIAS

Temperature Under Bias -10 to +125 -65 to +135

°

C

T

STG

Storage Temperature -55 to +125 -65 to +150

°

C

SRAM

FAMILY

C = CMOS PROCESS

62 = STANDARD

51 = 5V

OPERATING

VOLTAGE

64K

ORGANIZATION

PKGSPEED

51864 05

PWR.

62 C 851 64 –

MOSEL-VITELIC

MANUFACTURED

V

8 = 8-bit

35 ns
70 ns

TEMP.

BLANK = 0¡C to 70¡C
I = -40¡C to +85¡C

L = LOW POWER
LL = DOUBLE LOW POWER

P = 600 mil PDIP
F = 330 mil SOP (450 mil pin-to-pin)

DENSITY

Capacitance*

T

A

= 25

°

C, f = 1.0MHz

NOTE:

* This parameter is guaranteed and not tested.

Truth Table

NOTE:

X = Don’t Care, L = LOW, H = HIGH

Symbol Parameter Conditions Max. Unit

C

IN

Input Capacitance V

IN

= 0V 6 pF

C

OUT

Output Capacitance V

I/O

= 0V 8 pF

Mode CE

1

CE

2

OE

WE

I/O

Operation

Standby H X X X High Z
Standby X L X X High Z

Output Disable L H H H High Z

Read LHLH D

OUT

Write L H X L D

IN