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IS61NLF25618EC-200TQL

Description
ZBT SRAM, 256KX18, 7.5ns, CMOS, PQFP100, 14 X 20 MM, 1.40 MM HEIGHT, LEAD FREE, TQFP-100
Categorystorage    storage   
File Size3MB,40 Pages
ManufacturerISSI(Integrated Silicon Solution Inc.)
Websitehttp://www.issi.com/
Environmental Compliance
Download Datasheet Parametric View All

IS61NLF25618EC-200TQL Overview

ZBT SRAM, 256KX18, 7.5ns, CMOS, PQFP100, 14 X 20 MM, 1.40 MM HEIGHT, LEAD FREE, TQFP-100

IS61NLF25618EC-200TQL Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid1249801408
Parts packaging codeQFP
package instructionLQFP,
Contacts100
Reach Compliance Codecompliant
ECCN code3A991.B.2.A
Maximum access time7.5 ns
JESD-30 codeR-PQFP-G100
JESD-609 codee3
length20 mm
memory density4718592 bit
Memory IC TypeZBT SRAM
memory width18
Humidity sensitivity level3
Number of functions1
Number of terminals100
word count262144 words
character code256000
Operating modeSYNCHRONOUS
Maximum operating temperature70 °C
Minimum operating temperature
organize256KX18
Package body materialPLASTIC/EPOXY
encapsulated codeLQFP
Package shapeRECTANGULAR
Package formFLATPACK, LOW PROFILE
Parallel/SerialPARALLEL
Peak Reflow Temperature (Celsius)260
Maximum seat height1.6 mm
Maximum supply voltage (Vsup)3.465 V
Minimum supply voltage (Vsup)3.135 V
Nominal supply voltage (Vsup)3.3 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationQUAD
Maximum time at peak reflow temperature10
width14 mm
IS61(4)NLF12836EC/IS61(4)NVF12836EC/IS61(4)NLF12832EC
IS61(4)NVF12832EC/IS61(4)NLF25618EC/IS61(4)NVF25618EC
128K x36/32 and 256K x18 4Mb, ECC, FLOW THROUGH 'NO WAIT'
STATE BUS SYNCHRONOUS SRAM
JUNE 2012
FEATURES
100 percent bus utilization
No wait cycles between Read and Write
Internal self-timed write cycle
Individual Byte Write Control
Single R/W (Read/Write) control pin
Clock controlled, registered address, data and
control
Interleaved or linear burst sequence control
using MODE input
Three chip enables for simple depth
expansion and address pipelining
Power Down mode
Common data inputs and data outputs
/CKE pin to enable clock and suspend
operation
JEDEC 100-pin TQFP, 165-ball PBGA and
119-ball PBGA packages
Power supply:
NLF: V
DD
3.3V (± 5%), V
DDQ
3.3V/2.5V (± 5%)
NVF: V
DD
2.5V (± 5%), V
DDQ
2.5V (± 5%)
JTAG Boundary Scan for PBGA packages
Industrial and Automotive temperature support
Lead-free available
Error Detection and Error Correction
DESCRIPTION
The 4Mb product family features high-speed, low-
power synchronous static RAMs designed to
provide a burstable, high-performance, 'no wait'
state, device for networking and communications
applications. They are organized as 128K words
by 36 bits and 256K words by 18 bits, fabricated
with
ISSI's
advanced CMOS technology.
Incorporating a 'no wait' state feature, wait cycles
are eliminated when the bus switches from read
to write, or write to read. This device integrates a
2-bit burst counter, high-speed SRAM core, and
high-drive capability outputs into a single
monolithic circuit.
All synchronous inputs pass through registers are
controlled by a positive-edge-triggered single
clock input. Operations may be suspended and all
synchronous inputs ignored when Clock Enable,
/CKE is HIGH. In this state the internal device will
hold their previous values.
All Read, Write and Deselect cycles are initiated
by the ADV input. When the ADV is HIGH the
internal burst counter is incremented. New
external addresses can be loaded when ADV is
LOW.
Write cycles are internally self-timed and are
initiated by the rising edge of the clock inputs and
when /WE is LOW. Separate byte enables allow
individual bytes to be written.
A burst mode pin (MODE) defines the order of the
burst sequence. When tied HIGH, the interleaved
burst sequence is selected. When tied LOW, the
linear burst sequence is selected.
-6.5
6.5
7.5
133
FAST ACCESS TIME
Symbol
tKQ
tKC
Parameter
Clock Access Time
Cycle time
Frequency
-7.5
7.5
8.5
117
Units
ns
ns
MHz
Copyright © 2012 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can
reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such
applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc.- www.issi.com
Rev. 0A
6/13/2012
1
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