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EM44AM1684LBC-3F Datasheet(PDF) 5 Page - Eorex Corporation

Part # EM44AM1684LBC-3F
Description  256Mb (4M횞4Bank횞16) Double DATA RATE 2 SDRAM
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Manufacturer  EOREX [Eorex Corporation]
Direct Link  http://www.eorex.com
Logo EOREX - Eorex Corporation

EM44AM1684LBC-3F Datasheet(HTML) 5 Page - Eorex Corporation

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eorex
EM44AM1684LBC
Jul. 2006
www.eorex.com
5/29
to provide differential pair signaling to the system during both reads
and writes. An EMRS(1) control bit enables or disables all
complementary data strobe signals. In this data sheet, "differential
DQS signals" refers to A10 = 0 of EMRS(1) using LDQS/LDQS and
UDQS/UDQS. "single-ended DQS signals" refers to A10 = 1 of
EMRS(1) using LDQS and UDQS.
B3,F3
UDM,LDM
(Input Data Mask)
DM is an input mask signal for write data. Input data is masked
when DM is sampled HIGH coincident with that input data during a
Write access. DM is sampled on both edges of DQS. Although DM
pins are input only, the DM loading matches the DQ and DQS
loading.
G8,G2,H7,H3,H1,
H9,F1,F9,C8,
C2,D7,D3,D1,
D9,B1,B9
DQ0~15
(Data Input/Output)
Data inputs and outputs are on the same pin.
A1,E1,J9,M9,R1/
A3,E3,J3,N1,P9
VDD/VSS
(Power Supply/Ground)
VDD and VSS are power supply for internal circuits.
A9,C1,C3,C7,C9,E
9,G1,G3,G7,G9/
A7,B2,B8,D2,D8,E
7,F2,F8,H2,H8
VDDQ/VSSQ
(DQ Power Supply/DQ Ground)
VDDQ and VSSQ are power supply for the output buffers.
J1/J7
VDDL/VSSDL
(DLL Power Supply/DLL Ground)
VDDL and VSSDL are power supply for DLL circuits
J2
VREF
(Reference Voltage)
SSTL_1.8 reference voltage
A2,E2,L1,R3,R7,
R8
NC
(No Connection)
No internal electrical connection is present.


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