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IS61NF12832-8.5B

Description
128K x 32, 128K x 36 and 256K x 18 FLOW-THROUGH NO WAIT STATE BUS SRAM
Categorystorage    storage   
File Size126KB,20 Pages
ManufacturerISSI(Integrated Silicon Solution Inc.)
Websitehttp://www.issi.com/
Download Datasheet Parametric View All

IS61NF12832-8.5B Overview

128K x 32, 128K x 36 and 256K x 18 FLOW-THROUGH NO WAIT STATE BUS SRAM

IS61NF12832-8.5B Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerISSI(Integrated Silicon Solution Inc.)
Parts packaging codeBGA
package instructionPLASTIC, BGA-119
Contacts119
Reach Compliance Codecompliant
ECCN code3A991.B.2.A
Maximum access time8.5 ns
Other featuresFLOW-THROUGH ARCHITECTURE
Maximum clock frequency (fCLK)100 MHz
I/O typeCOMMON
JESD-30 codeR-PBGA-B119
JESD-609 codee0
length22 mm
memory density4194304 bit
Memory IC TypeZBT SRAM
memory width32
Number of functions1
Number of terminals119
word count131072 words
character code128000
Operating modeSYNCHRONOUS
Maximum operating temperature70 °C
Minimum operating temperature
organize128KX32
Output characteristics3-STATE
Package body materialPLASTIC/EPOXY
encapsulated codeBGA
Encapsulate equivalent codeBGA119,7X17,50
Package shapeRECTANGULAR
Package formGRID ARRAY
Parallel/SerialPARALLEL
Peak Reflow Temperature (Celsius)240
power supply3.3 V
Certification statusNot Qualified
Maximum seat height2.41 mm
Maximum standby current0.01 A
Minimum standby current3.14 V
Maximum slew rate0.305 mA
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 surfaceTin/Lead (Sn/Pb)
Terminal formBALL
Terminal pitch1.27 mm
Terminal locationBOTTOM
Maximum time at peak reflow temperature30
width14 mm
Base Number Matches1
IS61NF12832 IS61NF12836 IS61NF25618
IS61NLF12832 IS61NLF12836 IS61NLF25618
128K x 32, 128K x 36 and 256K x 18
FLOW-THROUGH 'NO WAIT' STATE BUS
SRAM
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 for TQFP
Power Down mode
Common data inputs and data outputs
CKE
pin to enable clock and suspend operation
JEDEC 100-pin TQFP, 119 PBGA package
Single +3.3V power supply (± 5%)
NF Version: 3.3V I/O Supply Voltage
NLF Version: 2.5V I/O Supply Voltage
Industrial temperature available
ISSI
®
NOVEMBER 2002
DESCRIPTION
The 4 Meg 'NF' product family feature high-speed,
low-power synchronous static RAMs designed to provide
a burstable, high-performance, 'no wait' state, device for
network and communications customers. They are
organized as 131,072 words by 32 bits, 131,072 words
by 36 bits and 262,144 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.
FAST ACCESS TIME
Symbol
t
KQ
t
KC
Parameter
Clock Access Time
Cycle Time
Frequency
-8.5
8.5
10
100
-9
9
12
83
-10
10
12
83
Units
ns
ns
MHz
ISSI reserves the right to make changes this specification herein and it products at any time without notice. ISSI assumes no responsibility or liability arising out of the application or use of any information,
product 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.
© Copyright 2000, Integrated Silicon Solution, Inc
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. A
11/11/02
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