EM47FM3288SBB datasheet(5/41 Pages) EOREX

Part #	EM47FM3288SBB

Description	16Gb (64M횞8Bank횞32) Double DATA RATE 3 Stack SDRAM

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Manufacturer	EOREX [Eorex Corporation]

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EM47FM3288SBB

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Ball Description (Continued)

D3,D10,P10,P3

D4,D9,P9,P4

DQS0~3,

/DQS0~3

(Data Strobe)

Output with read data, input with write data. Edge aligned with read

data, centered with write data. The data strobes DQS are paired

with differential signals /DQS, respectively, to provide differential

pair signaling to the system during both reads and writes. DDR3

SDRAM supports differential data strobe only and does not support

single-ended.

G4,G3,J4

RAS , CAS

, WE

(Command Inputs)

RAS , CAS & WE (along with CS ) define the command being

entered.

C4,C9,R9,R4

DM0 ~MD3

(Input Data Mask)

DM is input mask signal for write data. Input data is masked when

DM are sampled HIGH coincident with that input data during a write

access. DM is sampled on both edges of DQS.

B2,A4,C2,B4,E2,E4,F

2,F4,B11,A9,C11,B9,

E11,E9,F11,F9,M11,

M9,N11,N9,R11,T9,T

11,U9,M2,M4,N2,N4,

R2,T4,T2,U4

DQ0~31

(Data Input/Output)

Data inputs and outputs are on the same pin.

A1,G1,L1,U1,A12,

G12,L12,U12,/F1,M1,

A2,J2,U2,A11,J11,

U11,F12,M12

VDD/VSS

(Power Supply/Ground)

VDD and VSS are power supply for internal circuits.

B1,C1,R1,T1,D2,P2,

E3,F3,M3,N3,E10,F1

0,M10,N10,D11,P11,

B12,C12,R12,T12/D1

,E1,N1,P1,A3,B3,C3,

R3,T3,U3,

A10,B10,C10,R10,T1

0,U10,D12,E12,N12,

P12

VDDQ/

VSSQ

(DQ Power Supply/DQ Ground)

VDDQ and VSSQ are power supply for the output buffers.

J3,J10,G2,H12

ZQ0 ~ZQ3

(ZQ Calibration)

Reference pin for ZQ calibration

H1

RESET

(Active Low Asynchronous Reset)

Reset is active when RESET is LOW, and inactive when RESET

is HIGH. RESET must be HIGH during normal operation.

RESET is a CMOS rail to rail signal with DC high and low at 80%

and 20% of VDD, i.e. 1.20V for DC high and 0.30V for DC low.

J1

VREFDQ

(Reference Voltage)

Reference voltage for DQ

J12

VREFCA

(Reference Voltage)

Reference voltage for CA

Note: Input pins only BA0-BA2, A0-A13, RAS , CAS , WE , CS , CKE, ODT and RESET do not supply

termination.

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