GS832136GE-V Datasheet دیتاشیت PDF دانلود

دیتاشیت - GSI Technology - 36Mb Sync Burst SRAMs

شماره قطعه GS832136GE-V
شرح مفصل 36Mb Sync Burst SRAMs
تولید کننده GSI Technology 
آرم GSI Technology 

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GS832136GE-V شرح
Commercial Temp
Industrial Temp
2M x 18, 1M x 32, 1M x 36
36Mb Sync Burst SRAMs
1.8 V or 2.5 V VDD
1.8 V or 2.5 V I/O
• 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 FP-BGA package
• RoHS-compliant 165-bump BGA package available
Functional Description
The GS832118/32/36E-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.
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.
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 GS832118/32/36E-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 GS832118/32/36E-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 (VDDQ) pins are used to decouple
output noise from the internal circuits and are 1.8 V or 2.5 V
Parameter Synopsis
-250 -225 -200 -166 -150 -133 Unit
3.0 3.0 3.0 3.5 3.8 4.0 ns
4.0 4.4 5.0 6.0 6.6 7.5 ns
3-1-1-1 Curr (x18) 285 265 245 220 210 185 mA
Curr (x32/x36) 350 320 295 260 240 215 mA
Curr (x18)
6.5 7.0 7.5 8.0 8.5 8.5 ns
6.5 7.0 7.5 8.0 8.5 8.5 ns
205 195 185 175 165 155 mA
Curr (x32/x36) 235 225 210 200 190 175 mA
Rev: 1.04 6/2006
Specifications cited are subject to change without notice. For latest documentation see
© 2003, GSI Technology

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