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GS8662D18BGD-400T

Description
QDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 13 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-165
Categorystorage    storage   
File Size1MB,33 Pages
ManufacturerGSI Technology
Websitehttp://www.gsitechnology.com/
Environmental Compliance
Download Datasheet Parametric View All

GS8662D18BGD-400T Overview

QDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 13 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-165

GS8662D18BGD-400T Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerGSI Technology
Parts packaging codeBGA
package instructionLBGA, BGA165,11X15,40
Contacts165
Reach Compliance Codecompliant
ECCN code3A991.B.2.B
Maximum access time0.45 ns
Other featuresPIPELINED ARCHITECTURE
Maximum clock frequency (fCLK)400 MHz
I/O typeSEPARATE
JESD-30 codeR-PBGA-B165
length15 mm
memory density75497472 bit
Memory IC TypeQDR SRAM
memory width18
Number of functions1
Number of terminals165
word count4194304 words
character code4000000
Operating modeSYNCHRONOUS
Maximum operating temperature70 °C
Minimum operating temperature
organize4MX18
Output characteristics3-STATE
Package body materialPLASTIC/EPOXY
encapsulated codeLBGA
Encapsulate equivalent codeBGA165,11X15,40
Package shapeRECTANGULAR
Package formGRID ARRAY, LOW PROFILE
Parallel/SerialPARALLEL
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply1.5/1.8,1.8 V
Certification statusNot Qualified
Maximum seat height1.4 mm
Minimum standby current1.7 V
Maximum slew rate0.735 mA
Maximum supply voltage (Vsup)1.9 V
Minimum supply voltage (Vsup)1.7 V
Nominal supply voltage (Vsup)1.8 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal formBALL
Terminal pitch1 mm
Terminal locationBOTTOM
Maximum time at peak reflow temperatureNOT SPECIFIED
width13 mm
GS8662D08/09/18/36BD-400/350/333/300/250
165-Bump BGA
Commercial Temp
Industrial Temp
Features
• Simultaneous Read and Write SigmaQuad™ Interface
• JEDEC-standard pinout and package
• Dual Double Data Rate interface
• Byte Write controls sampled at data-in time
• Burst of 4 Read and Write
• 1.8 V +100/–100 mV core power supply
• 1.5 V or 1.8 V HSTL Interface
• Pipelined read operation
• Fully coherent read and write pipelines
• ZQ pin for programmable output drive strength
• IEEE 1149.1 JTAG-compliant Boundary Scan
• Pin-compatible with present 144 Mb devices
• 165-bump, 13 mm x 15 mm, 1 mm bump pitch BGA package
• RoHS-compliant 165-bump BGA package available
72Mb SigmaQuad-II
TM
Burst of 4 SRAM
Clocking and Addressing Schemes
400 MHz–250 MHz
1.8 V V
DD
1.8 V and 1.5 V I/O
The GS8662D08/09/18/36BD SigmaQuad-II SRAMs are
synchronous devices. They employ two input register clock
inputs, K and K. K and K are independent single-ended clock
inputs, not differential inputs to a single differential clock input
buffer. The device also allows the user to manipulate the
output register clock inputs quasi independently with the C and
C clock inputs. C and C are also independent single-ended
clock inputs, not differential inputs. If the C clocks are tied
high, the K clocks are routed internally to fire the output
registers instead.
Each internal read and write operation in a SigmaQuad-II B4
RAM is four times wider than the device I/O bus. An input
data bus de-multiplexer is used to accumulate incoming data
before it is simultaneously written to the memory array. An
output data multiplexer is used to capture the data produced
from a single memory array read and then route it to the
appropriate output drivers as needed. Therefore the address
field of a SigmaQuad-II B4 RAM is always two address pins
less than the advertised index depth (e.g., the 8M x 8 has a 2M
addressable index).
SigmaQuad™ Family Overview
The GS8662D08/09/18/36BD are built in compliance with
the SigmaQuad-II SRAM pinout standard for Separate I/O
synchronous SRAMs. They are 75,497,472-bit (72Mb)
SRAMs. The GS8662D08/09/18/36BD SigmaQuad SRAMs
are just one element in a family of low power, low voltage
HSTL I/O SRAMs designed to operate at the speeds needed to
implement economical high performance networking systems.
-400
tKHKH
tKHQV
2.5 ns
0.45 ns
-350
2.86 ns
0.45 ns
-333
3.0 ns
0.45 ns
-300
3.3 ns
0.45 ns
-250
4.0 ns
0.45 ns
Rev: 1.02c 12/2011
1/33
© 2011, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

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