GS81302DT06/11/20/38E-500/450/400/350
500 MHz350 MHz
165-Bump BGA
144Mb SigmaQuad-II+
1.8 V V
Commercial Temp
DD
Burst of 4 SRAM
Industrial Temp
1.8 V or 1.5 V I/O
are just one element in a family of low power, low voltage
Features
HSTL I/O SRAMs designed to operate at the speeds needed to
2.5 Clock Latency
implement economical high performance networking systems.
Simultaneous Read and Write SigmaQuad Interface
JEDEC-standard pinout and package
Dual Double Data Rate interface
Clocking and Addressing Schemes
Byte Write controls sampled at data-in time
Burst of 4 Read and Write The GS81302DT06/11/20/38E SigmaQuad-II+ SRAMs are
Dual-Range On-Die Termination (ODT) on Data (D), Byte synchronous devices. They employ two input register clock
Write (BW), and Clock (K, K) intputs inputs, K and K. K and K are independent single-ended clock
1.8 V +100/100 mV core power supply inputs, not differential inputs to a single differential clock input
1.5 V or 1.8 V HSTL Interface buffer.
Pipelined read operation
Fully coherent read and write pipelines Each internal read and write operation in a SigmaQuad-II+ B4
ZQ pin for programmable output drive strength RAM is four times wider than the device I/O bus. An input
Data Valid Pin (QVLD) Support data bus de-multiplexer is used to accumulate incoming data
IEEE 1149.1 JTAG-compliant Boundary Scan before it is simultaneously written to the memory array. An
165-bump, 15 mm x 17 mm, 1 mm bump pitch BGA package output data multiplexer is used to capture the data produced
RoHS-compliant 165-bump BGA package available 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
SigmaQuad Family Overview
less than the advertised index depth (e.g., the 16M x 8 has a
The GS81302DT06/11/20/38E are built in compliance with
4M addressable index).
the SigmaQuad-II+ SRAM pinout standard for Separate I/O
synchronous SRAMs. They are 150,994,944-bit (144Mb)
SRAMs. The GS81302DT06/11/20/38E SigmaQuad SRAMs
Parameter Synopsis
-500 -450 -400 -350
tKHKH 2.0 ns 2.2 ns 2.5 ns 2.86 ns
tKHQV 0.45 ns 0.45 ns 0.45 ns 0.45 ns
Rev: 1.02c 8/2017 1/31 2011, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see GS81302DT06/11/20/38E-500/450/400/350
4M x 36 SigmaQuad-II+ SRAMTop View
1 2 3 4 5 6 7 8 9 10 11
NC/SA
A CQ SA W BW2 K BW1 R SA SA CQ
(288Mb)
B Q27 Q18 D18 SA BW3 K BW0 SA D17 Q17 Q8
C D27 Q28 D19 V SA NC SA V D16 Q7 D8
SS SS
D D28 D20 Q19 V V V V V Q16 D15 D7
SS SS SS SS SS
E Q29 D29 Q20 V V V V V Q15 D6 Q6
DDQ SS SS SS DDQ
F Q30 Q21 D21 V V V V V D14 Q14 Q5
DDQ DD SS DD DDQ
G D30 D22 Q22 V V V V V Q13 D13 D5
DDQ DD SS DD DDQ
H Doff V V V V V V V V V ZQ
REF DDQ DDQ DD SS DD DDQ DDQ REF
J D31 Q31 D23 V V V V V D12 Q4 D4
DDQ DD SS DD DDQ
K Q32 D32 Q23 V V V V V Q12 D3 Q3
DDQ DD SS DD DDQ
L Q33 Q24 D24 V V V V V D11 Q11 Q2
DDQ SS SS SS DDQ
M D33 Q34 D25 V V V V V D10 Q1 D2
SS SS SS SS SS
N D34 D26 Q25 V SA SA SA V Q10 D9 D1
SS SS
P Q35 D35 Q26 SA SA QVLD SA SA Q9 D0 Q0
R TDO TCK SA SA SA ODT SA SA SA TMS TDI
2
11 x 15 Bump BGA15 x 17 mm Body1 mm Bump Pitch
Notes:
1. BW0 controls writes to D0:D8; BW1 controls writes to D9:D17; BW2 controls writes to D18:D26; BW3 controls writes to D27:D35
2. Pin A2 is the expansion address.
Rev: 1.02c 8/2017 2/31 2011, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see