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IDT71V3579YS85BGG

Description
Cache SRAM, 256KX18, 8.5ns, CMOS, PBGA119, BGA-119
Categorystorage    storage   
File Size519KB,22 Pages
ManufacturerIDT (Integrated Device Technology)
Environmental Compliance
Download Datasheet Parametric View All

IDT71V3579YS85BGG Overview

Cache SRAM, 256KX18, 8.5ns, CMOS, PBGA119, BGA-119

IDT71V3579YS85BGG Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerIDT (Integrated Device Technology)
Parts packaging codeBGA
package instructionBGA-119
Contacts119
Reach Compliance Codeunknown
ECCN code3A991.B.2.A
Maximum access time8.5 ns
Other featuresFLOW-THROUGH ARCHITECTURE
Maximum clock frequency (fCLK)87 MHz
I/O typeCOMMON
JESD-30 codeR-PBGA-B119
JESD-609 codee1
length22 mm
memory density4718592 bit
Memory IC TypeCACHE SRAM
memory width18
Humidity sensitivity level3
Number of functions1
Number of terminals119
word count262144 words
character code256000
Operating modeSYNCHRONOUS
Maximum operating temperature70 °C
Minimum operating temperature
organize256KX18
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)260
power supply3.3 V
Certification statusNot Qualified
Maximum seat height2.36 mm
Maximum standby current0.03 A
Minimum standby current3.14 V
Maximum slew rate0.18 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/Silver/Copper (Sn/Ag/Cu)
Terminal formBALL
Terminal pitch1.27 mm
Terminal locationBOTTOM
Maximum time at peak reflow temperatureNOT SPECIFIED
width14 mm
128K X 36, 256K X 18
3.3V Synchronous SRAMs
3.3V I/O, Flow-Through Outputs
Burst Counter, Single Cycle Deselect
Features
x
x
IDT71V3577S
IDT71V3579S
IDT71V3577SA
IDT71V3579SA
Description
The IDT71V3577/79 are high-speed SRAMs organized as
128K x 36/256K x 18. The IDT71V3577/79 SRAMs contain write, data,
address and control registers. There are no registers in the data output
path (flow-through architecture). Internal logic allows the SRAM to gen-
erate a self-timed write based upon a decision which can be left until the
end of the write cycle.
The burst mode feature offers the highest level of performance to the
system designer, as the IDT71V3577/79 can provide four cycles of data
for a single address presented to the SRAM. An internal burst address
counter accepts the first cycle address from the processor, initiating the
access sequence. The first cycle of output data will flow-through from the
array after a clock-to-data access time delay from the rising clock edge of
the same cycle. If burst mode operation is selected (ADV=LOW), the
subsequent three cycles of output data will be available to the user on the
next three rising clock edges. The order of these three addresses are
defined by the internal burst counter and the
LBO
input pin.
The IDT71V3577/79 SRAMs utilize IDT’s latest high-performance
CMOS process and are packaged in a JEDEC standard 14mm x 20mm
100-pin thin plastic quad flatpack (TQFP) as well as a 119 ball grid array
(BGA) and a 165 fine pitch ball grid array (fBGA).
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Output
Input
Input
I/O
Supply
Supply
Synchronous
Synchronous
Synchronous
Asynchronous
Synchronous
Synchronous
Synchronous
N/A
Synchronous
Synchronous
Synchronous
DC
Synchronous
Synchronous
N/A
Synchronous
Asynchronous
Asynchronous
Synchronous
N/A
N/A
5280 tbl 01
x
x
x
x
x
x
x
128K x 36, 256K x 18 memory configurations
Supports fast access times:
Commercial:
– 7.5ns up to 117MHz clock frequency
Commercial and Industrial:
– 8.0ns up to 100MHz clock frequency
– 8.5ns up to 87MHz clock frequency
LBO
input selects interleaved or linear burst mode
Self-timed write cycle with global write control (GW byte write
GW),
GW
enable (BWE and byte writes (BW
BWE),
BWx)
BWE
BW
3.3V core power supply
Power down controlled by ZZ input
3.3V I/O
Optional - Boundary Scan JTAG Interface (IEEE 1149.1
compliant)
Packaged in a JEDEC Standard 100-pin plastic thin quad
flatpack (TQFP), 119 ball grid array (BGA) and 165 fine pitch ball
grid array
Pin Description Summary
A
0
-A
17
Address Inputs
Chip Enable
Chip Selects
Output Enable
Global Write Enable
Byte Write Enable
Individual Byte Write Selects
Clock
Burst Address Advance
Address Status (Cache Controller)
Address Status (Processor)
Linear / Interleaved Burst Order
Test Mode Select
Test Data Input
Test Clock
Test Data Output
JTAG Reset (Optional)
Sleep Mode
Data Input / Output
Core Power, I/O Power
Ground
CE
CS
0
,
CS
1
OE
GW
BWE
BW
1
,
BW
2
,
BW
3
,
BW
4
(1)
CLK
ADV
ADSC
ADSP
LBO
TMS
TDI
TCK
TDO
TRST
ZZ
I/O
0
-I/O
31
, I/O
P1
-I/O
P4
V
DD
, V
DDQ
V
SS
NOTE:
1.
BW
3
and
BW
4
are not applicable for the IDT71V3579.
1
©2005 Integrated Device Technology, Inc.
FEBRUARY 2005
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