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PDF GS8662TT06BD Data sheet ( Hoja de datos )

Número de pieza GS8662TT06BD
Descripción 72Mb SigmaDDR-II+ Burst of 2 SRAM
Fabricantes GSI Technology 
Logotipo GSI Technology Logotipo



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No Preview Available ! GS8662TT06BD Hoja de datos, Descripción, Manual

165-Bump BGA
Commercial Temp
Industrial Temp
GS8662TT20/38BD-550/500/450/400/350
GS8662TT06/11BD-500/450/400/350
72Mb SigmaDDRTM-II+
Burst of 2 SRAM
550 MHz–350 MHz
1.8 V VDD
1.8 V or 1.5 V I/O
Features
• 2.5 Clock Latency
• Simultaneous Read and Write SigmaDDRTM Interface
• JEDEC-standard pinout and package
• Double Data Rate interface
• Byte Write controls sampled at data-in time
• Burst of 2 Read and Write
• Dual-Range 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
SigmaDDR-IIFamily Overview
The GS8662TT06/11/20/38BD are built in compliance with
the SigmaDDR-II+ SRAM pinout standard for Common I/O
synchronous SRAMs. They are 75,497,472-bit (72Mb)
SRAMs. The GS8662TT06/11/20/38BD SigmaDDR-II+
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 GS8662TT06/11/20/38BD SigmaDDR-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 SigmaDDR-II+ B2
RAM is two 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
SigmaDDR-II+ B2 RAM is always one address pin less than
the advertised index depth (e.g., the 8M x 8 has an 4M
addressable index).
Parameter Synopsis (x18/x36)
tKHKH
tKHQV
-550
1.81 ns
0.29ns
-500
2.0 ns
0.33 ns
-450
2.2 ns
0.37 ns
-400
2.5 ns
0.45 ns
-350
2.86 ns
0.45 ns
Parameter Synopsis (x8/x9)
tKHKH
tKHQV
-500
2.0 ns
0.33 ns
-450
2.2 ns
0.37ns
-400
2.5 ns
0.45 ns
-350
2.86 ns
0.45 ns
Rev: 1.00a 11/2011
1/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology

1 page




GS8662TT06BD pdf
GS8662TT20/38BD-550/500/450/400/350
GS8662TT06/11BD-500/450/400/350
8M x 8 SigmaDDR-II+ SRAM—Top View
123456789
A
CQ
SA
SA R/W NW1
K
NC/SA
(144Mb)
LD
SA
B
NC
NC
NC
SA
NC/SA
(288Mb)
K
NW0 SA
NC
C NC NC NC VSS SA SA SA VSS NC
D NC NC NC VSS VSS VSS VSS VSS NC
E NC NC DQ4 VDDQ VSS VSS VSS VDDQ NC
F
NC
NC
NC
VDDQ
VDD
VSS
VDD VDDQ NC
G NC NC DQ5 VDDQ VDD VSS VDD VDDQ NC
H
Doff
VREF
VDDQ
VDDQ
VDD
VSS
VDD
VDDQ
VDDQ
J
NC
NC
NC
VDDQ
VDD
VSS
VDD VDDQ NC
K
NC
NC
NC
VDDQ
VDD
VSS
VDD VDDQ NC
L
NC
DQ6
NC
VDDQ
VSS
VSS
VSS VDDQ NC
M NC NC NC VSS VSS VSS VSS VSS NC
N NC NC NC VSS SA SA SA VSS NC
P NC NC DQ7 SA SA QVLD SA SA NC
R
TDO TCK
SA
SA
SA ODT SA
SA
SA
11 x 15 Bump BGA—13 x 15 mm2 Body—1 mm Bump Pitch
Notes:
1. NW0 controls writes to DQ0:DQ3; NW1 controls writes to DQ4:DQ7.
2. Pins A7 and B5 are the expansion addresses.
10
SA
NC
NC
NC
NC
NC
NC
VREF
DQ1
NC
NC
NC
NC
NC
TMS
11
CQ
DQ3
NC
NC
DQ2
NC
NC
ZQ
NC
NC
DQ0
NC
NC
NC
TDI
Rev: 1.00a 11/2011
5/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology

5 Page





GS8662TT06BD arduino
GS8662TT20/38BD-550/500/450/400/350
GS8662TT06/11BD-500/450/400/350
x36 Byte Write Enable (BWn) Truth Table
BW0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
BW1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
BW2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
BW3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D0–D8
Don’t Care
Data In
Don’t Care
Data In
Don’t Care
Data In
Don’t Care
Data In
Don’t Care
Data In
Don’t Care
Data In
Don’t Care
Data In
Don’t Care
Data In
D9–D17
Don’t Care
Don’t Care
Data In
Data In
Don’t Care
Don’t Care
Data In
Data In
Don’t Care
Don’t Care
Data In
Data In
Don’t Care
Don’t Care
Data In
Data In
x18 Byte Write Enable (BWn) Truth Table
BW0 BW1
11
01
10
00
D0–D8
Don’t Care
Data In
Don’t Care
Data In
x8 Nybble Write Enable (NWn) Truth Table
NW0 NW1
11
01
10
00
D0–D3
Don’t Care
Data In
Don’t Care
Data In
D18–D26
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Data In
Data In
Data In
Data In
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Data In
Data In
Data In
Data In
D27–D35
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Don’t Care
Data In
Data In
Data In
Data In
Data In
Data In
Data In
Data In
D9–D17
Don’t Care
Don’t Care
Data In
Data In
D4–D7
Don’t Care
Don’t Care
Data In
Data In
Rev: 1.00a 11/2011
11/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology

11 Page







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