EBD52RC8AKFA Datasheet, PDF (11/18 Pages) Elpida Memory – 512MB Registered DDR SDRAM DIMM

EBD52RC8AKFA
Pin Capacitance (TA = 25°C, VDD = 2.5V ± 0.2V)
Parameter
Symbol
Pins
max.
Unit
Notes
Input capacitance
CI1
Address, /RAS, /CAS, /WE,
/CS, CKE
10
pF
1, 3
Input capacitance
CI2
CK, /CK
20
pF
1, 3
Data and DQS input/output
capacitance
CO
DQ, DQS, CB, DM
20
pF
1, 2, 3
Notes: 1. These parameters are measured on conditions: f = 100MHz, VOUT = VDDQ/2, ∆VOUT = 0.2V.
2. Dout circuits are disabled.
3. This parameter is sampled and not 100% tested.
AC Characteristics (TA = 0 to +70°C, VDD, VDDQ = 2.5V ± 0.2V, VSS = 0V)
(DDR SDRAM component Specification)
Parameter
Clock cycle time
(CL = 2)
(CL = 2.5)
CK high-level width
CK low-level width
CK half period
DQ output access time from
CK, /CK
DQS output access time from CK, /CK
DQS to DQ skew
DQ/DQS output hold time from DQS
Data hold skew factor
Data-out high-impedance time from CK, /CK
Data-out low-impedance time from CK, /CK
Read preamble
Read postamble
DQ and DM input setup time
DQ and DM input hold time
DQ and DM input pulse width
Write preamble setup time
Write preamble
Write postamble
Write command to first DQS latching transition
DQS falling edge to CK setup time
DQS falling edge hold time from CK
DQS input high pulse width
DQS input low pulse width
Address and control input setup time
Address and control input hold time
Address and control input pulse width
Mode register set command cycle time
Symbol
min.
max
tCK
7.5
12
tCK
6
12
tCH
0.45
0.55
tCL
0.45
0.55
tHP
min
(tCH, tCL)
—
tAC
–0.7
0.7
tDQSCK –0.6
0.6
tDQSQ
—
0.45
tQH
tHP – tQHS
—
tQHS
—
0.55
tHZ
–0.7
0.7
tLZ
–0.7
0.7
tRPRE
0.9
1.1
tRPST
0.4
0.6
tDS
0.45
—
tDH
0.45
—
tDIPW
1.75
—
tWPRES 0
—
tWPRE
0.25
—
tWPST
0.4
0.6
tDQSS
0.75
1.25
tDSS
0.2
—
tDSH
0.2
—
tDQSH
0.35
—
tDQSL
0.35
—
tIS
0.75
—
tIH
0.75
—
tIPW
2.2
—
tMRD
2
—
Unit
Notes
ns
10
ns
tCK
tCK
tCK
ns
2, 11
ns
2, 11
ns
3
ns
ns
ns
5, 11
ns
6, 11
tCK
tCK
ns
8
ns
8
ns
7
ns
tCK
tCK
9
tCK
tCK
tCK
tCK
tCK
ns
8
ns
8
ns
7
tCK
Preliminary Data Sheet E0375E10 (Ver. 1.0)
11