EDS2532EESL-75 Datasheet, PDF (1/50 Pages) Elpida Memory – 256M bits SDRAM

DATA SHEET
256M bits SDRAM
EDS2532EESL-75 (8M words × 32 bits) _{Specifications}
• Density: 256M bits
• Organization
 2M words × 32 bits × 4 banks
E• Package: 92-ball FBGA
 Lead-free (RoHS compliant)
• Power supply: VDD, VDDQ = 1.8V ± 0.1V
• Clock frequency: 133MHz (max.)
O• 2KB page size
 Row address: A0 to A11
 Column address: A0 to A8
• Four internal banks for concurrent operation
• Interface: LVCMOS
L _{• Burst lengths (BL): 1, 2, 4, 8, full page}
• Burst type (BT):
 Sequential (1, 2, 4, 8, full page)
 Interleave (1, 2, 4, 8)
• /CAS Latency (CL): 2, 3
P • Precharge: auto precharge operation for each burst
access
• Driver strength: half/quarter
• Refresh: auto-refresh, self-refresh
r ^{• Refresh cycles: 4096 cycles/64ms}
 Average refresh period: 15.6µs
• Operating ambient temperature range
o _{ TA = 0°C to +70°C}
Features
• ×32 organization
d _{• Single pulsed /RAS}
• Burst read/write operation and burst read/single write
operation capability
uct ^{• Byte control by DQM}
Pin Configurations
/xxx indicates active low signal.
92-ball FBGA
1
2
3 4 5 6 7 8 9 10 11
A
NC VDD VSS
B
VSSQ DQ15
C
VDDQ DQ13 DQ14
D
DQ11 DQ12
E
DQ9 DQ10 VSSQ
F
DQ8 VDDQ
G
CLK DQM1 VSS
H
CKE /CS
J
A8 NC A9
K
NC A6 A7
L
A5 A4
M
A3 DQM3 VSS
N
DQ31 VDDQ
P
DQ30 DQ29 VSSQ
R
DQ28 DQ27
S
VDDQ DQ26 DQ25
T
VSSQ DQ24
U
NC VDD VSS
(Top view)
VSS VDD NC
DQ0 VDDQ
DQ1 DQ2 VSSQ
DQ3 DQ4
VDDQ DQ5 DQ6
VSSQ DQ7
VDD DQM0 /WE
/CAS /RAS
BA0 A11 NC
A10 BA1 NC
A1 A0
VDD DQM2 A2
VSSQ DQ16
VDDQ DQ18 DQ17
DQ20 DQ19
DQ22 DQ21 VSSQ
DQ23 VDDQ
VSS VDD NC
A0 to A11
BA0, BA1
DQ0 to DQ31
/CS
/RAS
/CAS
/WE
DQM0 to DQM3
CKE
CLK
VDD
VSS
VDDQ
Address inputs
Bank select address
Data-input/output
Chip select
Row address strobe
Column address strobe
Write enable
DQ mask enable
Clock enable
Clock input
Power for internal circuit
Ground for internal circuit
Power for DQ circuit
VSSQ
Ground for DQ circuit
NC
No connection
Document No. E0888E10 (Ver. 1.0) _{This product became EOL in September, 2007.}
Date Published March 2006 (K) Japan
Printed in Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2006