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What is GS8662D07BD?

This electronic component, produced by the manufacturer "GSI Technology", performs the same function as "72Mb SigmaQuad-II+ Burst of 4 SRAM".


GS8662D07BD Datasheet PDF - GSI Technology

Part Number GS8662D07BD
Description 72Mb SigmaQuad-II+ Burst of 4 SRAM
Manufacturers GSI Technology 
Logo GSI Technology Logo 


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GS8662D07/10/19/37BD-450/400/350/333/300
165-Bump BGA
Commercial Temp
Industrial Temp
72Mb SigmaQuad-II+TM
Burst of 4 SRAM
450 MHz–300 MHz
1.8 V VDD
1.8 V and 1.5 V I/O
Features
• 2.0 Clock Latency
• 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
• On-Die Termination (ODT) on Data (D), Byte Write (BW),
and Clock (K, K) inputs
• 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
• Data Valid Pin (QVLD) Support
• IEEE 1149.1 JTAG-compliant Boundary Scan
• 165-bump, 13 mm x 15 mm, 1 mm bump pitch BGA package
• RoHS-compliant 165-bump BGA package available
SigmaQuadFamily Overview
The GS8662D07/10/19/37BD 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 GS8662D07/10/19/37BD 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.
Clocking and Addressing Schemes
The GS8662D07/10/19/37BD 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.
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).
tKHKH
tKHQV
-450
2.22 ns
0.45 ns
Parameter Synopsis
-400
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
Rev: 1.02b 11/2011
1/29
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology

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GS8662D07BD equivalent
GS8662D07/10/19/37BD-450/400/350/333/300
2M x 36 SigmaQuad-II+ SRAM—Top View
1 2 3 4 5 6 7 8 9 10 11
A
CQ
NC/SA
(288Mb )
SA
W BW2 K BW1 R
SA
NC/SA
(144Mb)
CQ
B Q27 Q18 D18 SA BW3 K BW0 SA D17 Q17 Q8
C D27 Q28 D19 VSS SA NC SA VSS D16 Q7 D8
D D28 D20 Q19 VSS VSS VSS VSS VSS Q16 D15 D7
E
Q29
D29
Q20
VDDQ
VSS
VSS
VSS
VDDQ
Q15
D6
Q6
F
Q30 Q21 D21
VDDQ
VDD
VSS
VDD
VDDQ
D14
Q14
Q5
G
D30 D22 Q22 VDDQ VDD
VSS
VDD
VDDQ
Q13
D13
D5
H
Doff
VREF
VDDQ
VDDQ
VDD
VSS
VDD
VDDQ
VDDQ
VREF
ZQ
J
D31
Q31
D23
VDDQ
VDD
VSS
VDD
VDDQ
D12
Q4
D4
K
Q32 D32 Q23 VDDQ VDD
VSS
VDD
VDDQ
Q12
D3
Q3
L
Q33
Q24
D24
VDDQ
VSS
VSS
VSS
VDDQ
D11
Q11
Q2
M D33 Q34 D25 VSS VSS VSS VSS VSS D10 Q1 D2
N
D34 D26 Q25 VSS SA
SA
SA
VSS Q10
D9
D1
P
Q35 D35 Q26
SA
SA QVLD SA
SA
Q9
D0
Q0
R
TDO TCK
SA
SA
SA ODT SA
SA
SA TMS TDI
11 x 15 Bump BGA—13 x 15 mm Body—1 mm Bump Pitch
Notes:
3. BW0 controls writes to D0:D8; BW1 controls writes to D9:D17; BW2 controls writes to D18:D26; BW3 controls writes to D27:D35
4. Pins A2 and A10 are the expansion addresses.
Rev: 1.02b 11/2011
5/29
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology


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