71V3579S80PF8 datasheet, PDF - EEWORLD Datasheet

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71V3579S80PF8: DescriptionCache SRAM, 256KX18, 8ns, CMOS, PQFP100, 14 X 20 MM, 1.40 MM HEIGHT, PLASTIC, TQFP-100; Categorystorage; File Size518KB，23 Pages; ManufacturerIDT (Integrated Device Technology)

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71V3579S80PF8 Overview

Cache SRAM, 256KX18, 8ns, CMOS, PQFP100, 14 X 20 MM, 1.40 MM HEIGHT, PLASTIC, TQFP-100

71V3579S80PF8 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	IDT (Integrated Device Technology)
Parts packaging code	QFP
package instruction	14 X 20 MM, 1.40 MM HEIGHT, PLASTIC, TQFP-100
Contacts	100
Reach Compliance Code	not_compliant
ECCN code	3A991
Maximum access time	8 ns
Other features	FLOW-THROUGH ARCHITECTURE
Maximum clock frequency (fCLK)	100 MHz
I/O type	COMMON
JESD-30 code	R-PQFP-G100
JESD-609 code	e0
length	20 mm
memory density	4718592 bit
Memory IC Type	CACHE SRAM
memory width	18
Humidity sensitivity level	3
Number of functions	1
Number of terminals	100
word count	262144 words
character code	256000
Operating mode	SYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	256KX18
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	LQFP
Encapsulate equivalent code	QFP100,.63X.87
Package shape	RECTANGULAR
Package form	FLATPACK, LOW PROFILE
Parallel/Serial	PARALLEL
Peak Reflow Temperature (Celsius)	240
power supply	3.3 V
Certification status	Not Qualified
Maximum seat height	1.6 mm
Maximum standby current	0.03 A
Minimum standby current	3.14 V
Maximum slew rate	0.2 mA
Maximum supply voltage (Vsup)	3.465 V
Minimum supply voltage (Vsup)	3.135 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn85Pb15)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	20
width	14 mm
Base Number Matches	1

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128K X 36, 256K X 18

3.3V Synchronous SRAMs

3.3V I/O, Flow-Through Outputs

Burst Counter, Single Cycle Deselect

Features

IDT71V3577

IDT71V3579

Description

The IDT71V3577/79 are high-speed SRAMs organized as

128K x 36/256K x 18. The IDT71V3577/79 SRAMs contain write, data,

address and control registers. There are no registers in the data output

path (flow-through architecture). Internal logic allows the SRAM to gen-

erate a self-timed write based upon a decision which can be left until the

end of the write cycle.

The burst mode feature offers the highest level of performance to the

system designer, as the IDT71V3577/79 can provide four cycles of data

for a single address presented to the SRAM. An internal burst address

counter accepts the first cycle address from the processor, initiating the

access sequence. The first cycle of output data will flow-through from the

array after a clock-to-data access time delay from the rising clock edge of

the same cycle. If burst mode operation is selected (ADV=LOW), the

subsequent three cycles of output data will be available to the user on the

next three rising clock edges. The order of these three addresses are

defined by the internal burst counter and the

LBO

input pin.

The IDT71V3577/79 SRAMs utilize IDT’s latest high-performance

CMOS process and are packaged in a JEDEC standard 14mm x 20mm

100-pin thin plastic quad flatpack (TQFP) as well as a 119 ball grid array

(BGA) and a 165 fine pitch ball grid array (fBGA).

128K x 36, 256K x 18 memory configurations

Supports fast access times:

Commercial:

– 7.5ns up to 117MHz clock frequency

Commercial and Industrial:

– 8.0ns up to 100MHz clock frequency

– 8.5ns up to 87MHz clock frequency

LBO

input selects interleaved or linear burst mode

Self-timed write cycle with global write control (GW), byte write

enable (BWE), and byte writes (BWx)

3.3V core power supply

Power down controlled by ZZ input

3.3V I/O

Packaged in a JEDEC Standard 100-pin plastic thin quad

flatpack (TQFP), 119 ball grid array (BGA) and 165 fine pitch ball

grid array

Pin Description Summary

-A

BWE

(1)

CLK

ADV

ADSC

ADSP

LBO

I/O

-I/O

, I/O

-I/O

, V

DDQ

Address Inputs

Chip Enable

Chip Selects

Output Enable

Global Write Enable

Byte Write Enable

Individual Byte Write Selects

Clock

Burst Address Advance

Address Status (Cache Controller)

Address Status (Processor)

Linear / Interleaved Burst Order

Sleep Mode

Data Input / Output

Core Power, I/O Power

Ground

Input

I/O

Supply

Synchronous

Asynchronous

Synchronous

N/A

Synchronous

Asynchronous

Synchronous

N/A

5280 tbl 01

NOTE:

and

are not applicable for the IDT71V3579.

APRIL 2003

DSC-5280/06

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