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GS832118AD-333VT

Description
Cache SRAM, 2MX18, 5ns, CMOS, PBGA165, FPBGA-165
Categorystorage    storage   
File Size464KB,30 Pages
ManufacturerGSI Technology
Websitehttp://www.gsitechnology.com/
Download Datasheet Parametric View All

GS832118AD-333VT Overview

Cache SRAM, 2MX18, 5ns, CMOS, PBGA165, FPBGA-165

GS832118AD-333VT Parametric

Parameter NameAttribute value
Parts packaging codeBGA
package instructionLBGA,
Contacts165
Reach Compliance Codecompliant
ECCN code3A991.B.2.B
Is SamacsysN
Maximum access time5 ns
Other featuresPIPELINE OR FLOW THROUGH ARCHITECTURE; ALSO OPERATES AT 2.5 SUPPLY
JESD-30 codeR-PBGA-B165
length15 mm
memory density37748736 bit
Memory IC TypeCACHE SRAM
memory width18
Number of functions1
Number of terminals165
word count2097152 words
character code2000000
Operating modeSYNCHRONOUS
Maximum operating temperature85 °C
Minimum operating temperature
organize2MX18
Package body materialPLASTIC/EPOXY
encapsulated codeLBGA
Package shapeRECTANGULAR
Package formGRID ARRAY, LOW PROFILE
Parallel/SerialPARALLEL
Certification statusNot Qualified
Maximum seat height1.4 mm
Maximum supply voltage (Vsup)2 V
Minimum supply voltage (Vsup)1.7 V
Nominal supply voltage (Vsup)1.8 V
surface mountYES
technologyCMOS
Temperature levelOTHER
Terminal formBALL
Terminal pitch1 mm
Terminal locationBOTTOM
width13 mm
Base Number Matches1
GS832118/32/36AD-xxxV
165-Bump BGA
Commercial Temp
Industrial Temp
Features
• IEEE 1149.1 JTAG-compatible Boundary Scan
• 1.8 V or 2.5 V core power supply
• 1.8 V or 2.5 V I/O supply
• LBO pin for Linear or Interleaved Burst mode
• Internal input resistors on mode pins allow floating mode pins
• Byte Write (BW) and/or Global Write (GW) operation
• Internal self-timed write cycle
• Automatic power-down for portable applications
• JEDEC-standard 165-bump BGA package
• RoHS-compliant 165-bump BGA package available
2M x 18, 1M x 32, 1M x 36
36Mb Sync Burst SRAMs
333 MHz–150 MHz
2.5 V or 3.3 V V
DD
2.5 V or 3.3 V I/O
Flow Through/Pipeline Reads
The function of the Data Output register can be controlled by
the user via the FT mode pin (Pin 14). Holding the FT mode
pin low places the RAM in Flow Through mode, causing
output data to bypass the Data Output Register. Holding FT
high places the RAM in Pipeline mode, activating the rising-
edge-triggered Data Output Register.
SCD Pipelined Reads
The GS832118/32/36AD-xxxV is a SCD (Single Cycle
Deselect) pipelined synchronous SRAM. DCD (Dual Cycle
Deselect) versions are also available. SCD SRAMs pipeline
deselect commands one stage less than read commands. SCD
RAMs begin turning off their outputs immediately after the
deselect command has been captured in the input registers.
Byte Write and Global Write
Byte write operation is performed by using Byte Write enable
(BW) input combined with one or more individual byte write
signals (Bx). In addition, Global Write (GW) is available for
writing all bytes at one time, regardless of the Byte Write
control inputs.
Sleep Mode
Low power (Sleep mode) is attained through the assertion
(High) of the ZZ signal, or by stopping the clock (CK).
Memory data is retained during Sleep mode.
Core and Interface Voltages
The GS832118/32/36AD-xxxV operates on a 1.8 V or 2.5 V
power supply. All inputs are 1.8 V or 2.5 V compatible.
Separate output power (V
DDQ
) pins are used to decouple
output noise from the internal circuits and are 1.8 V or 2.5 V
compatible.
Functional Description
Applications
The GS832118/32/36AD-xxxV is a 37,748,736-bit high
performance synchronous SRAM with a 2-bit burst address
counter. Although of a type originally developed for Level 2
Cache applications supporting high performance CPUs, the
device now finds application in synchronous SRAM
applications, ranging from DSP main store to networking chip
set support.
Controls
Addresses, data I/Os, chip enable (E1), address burst control
inputs (ADSP, ADSC, ADV) and write control inputs (Bx,
BW, GW) are synchronous and are controlled by a positive-
edge-triggered clock input (CK). Output enable (G) and power
down control (ZZ) are asynchronous inputs. Burst cycles can
be initiated with either ADSP or ADSC inputs. In Burst mode,
subsequent burst addresses are generated internally and are
controlled by ADV. The burst address counter may be
configured to count in either linear or interleave order with the
Linear Burst Order (LBO) input. The Burst function need not
be used. New addresses can be loaded on every cycle with no
degradation of chip performance.
Parameter Synopsis
t
KQ
tCycle
Curr
(x18)
Curr
(x32/x36)
t
KQ
tCycle
Curr
(x18)
Curr
(x32/x36)
-333
3.0
3.0
365
425
5.0
5.0
270
315
-250
3.0
4.0
290
345
5.5
5.5
245
280
-200
3.0
5.0
250
290
6.5
6.5
210
250
-150
3.8
6.7
215
240
7.5
7.5
200
230
Unit
ns
ns
mA
mA
ns
ns
mA
mA
Pipeline
3-1-1-1
Flow
Through
2-1-1-1
Rev: 1.03 8/2013
1/30
© 2011, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

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