DATA SHEET
256M bits SDRAM
WTR (Wide Temperature Range)
EDS2532JEBH-75TT (8M words
×
32 bits)
Specifications
•
Density: 256M bits
•
Organization
2M words
×
32 bits
×
4 banks
•
Package: 90-ball FBGA
Lead-free (RoHS compliant)
•
Power supply: VDD, VDDQ
=
2.5V
±
0.2V
•
Clock frequency: 133MHz (max.)
•
2KB page size
Row address: A0 to A11
Column address: A0 to A8
•
Four internal banks for concurrent operation
•
Interface: LVCMOS
•
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
•
Precharge: auto precharge option for each burst
access
•
Driver strength: half/quarter
•
Refresh: auto-refresh, self-refresh
•
Refresh cycles: 4096 cycles/64ms
Average refresh period: 15.6µs
•
Operating ambient temperature range
TA
=
–20°C to +85°C
Pin Configurations
/xxx indicates active low signal.
90-ball FBGA
1
2
3
4
5
6
7
8
9
EO
Features
A
DQ26 DQ24 VSS
VDD DQ23 DQ21
VDDQ VSSQ DQ19
DQ22 DQ20 VDDQ
DQ17 DQ18 VDDQ
NC
A2
A10
NC
BA0
/CAS
VDD
DQ6
DQ1
B
DQ28 VDDQ VSSQ
C
VSSQ DQ27 DQ25
D
VSSQ DQ29 DQ30
E
VDDQ DQ31
NC
A3
A6
NC
A9
NC
DQ16 VSSQ
DQM2 VDD
A0
BA1
/CS
A1
A11
/RAS
F
VSS DQM3
• ×32
organization
•
Single pulsed /RAS
•
Burst read/write operation and burst read/single write
operation capability
•
Byte control by DQM
•
Wide temperature range
TA
=
–20°C to +85°C
Document No. E0909E10 (Ver. 1.0)
Date Published May 2006 (K) Japan
Printed in Japan
URL: http://www.elpida.com
L
G
A4
A5
A8
CKE
NC
H
A7
J
CLK
This product became EOL in September, 2007.
Elpida
Memory, Inc. 2006
od
Pr
K
L
DQM1
VDDQ DQ8
VSS
/WE DQM0
DQ7 VSSQ
DQ5 VDDQ
DQ3 VDDQ
M
N
P
VSSQ DQ10 DQ9
VSSQ DQ12 DQ14
DQ11 VDDQ VSSQ
VDDQ VSSQ DQ4
VDD
DQ0
DQ2
R
DQ13 DQ15 VSS
(Top view)
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
Ground for DQ circuit
No connection
A0 to A11
BA0, BA1
DQ0 to DQ31
/CS
/RAS
/CAS
/WE
DQM0 to DQM3
CKE
CLK
VDD
VSS
VDDQ
VSSQ
NC
uc
t