DATA SHEET
64M bits SDRAM
EDS6432AFBH, EDS6432CFBH (2M words × 32 bits)
Description
The EDS6432AFBH, EDS6432CFBH are 64...
DATA SHEET
64M bits SDRAM
EDS6432AFBH, EDS6432CFBH (2M words × 32 bits)
Description
The EDS6432AFBH, EDS6432CFBH are 64M bits SDRAMs organized as 524,288 words × 32 bits × 4 banks. All inputs and outputs are synchronized with www.DataSheet4U.com the positive edge of the clock. Supply
voltages are 3.3V (EDS6432AFBH) and 2.5V (EDS6432CFBH). They are packaged in 90-ball FBGA.
Pin Configurations
/xxx indicate active low signal.
90-ball FBGA
1 2 3 4 5 6 7 8 9
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
Features
3.3V and 2.5V power supply Clock frequency: 166MHz/133MHz (max.) Single pulsed /RAS ×32 organization 4 banks can operate simultaneously and independently Burst read/write operation and burst read/single write operation capability Programmable burst length (BL): 1, 2, 4, 8, full page 2 variations of burst sequence Sequential (BL = 1, 2, 4, 8, full page) Interleave (BL = 1, 2, 4, 8) Programmable /CAS latency (CL): 2, 3 Byte control by DQM Refresh cycles: 4096 refresh cycles/64ms 2 variations of refresh Auto refresh Self refresh FBGA package with lead free solder (Sn-Ag-Cu) RoHS compliant
D E
VSSQ DQ27 DQ25 VSSQ DQ29 DQ30 VDDQ DQ31 NC A3 A6 NC A9
NC
VSS
DQ16 VSSQ DQM2 VDD A0 BA1 /CS A1 NC /RAS
F
VSS DQM3
G
A4 A5 A8 CKE
NC
H
A7
J
CLK
K
DQM1 /WE DQM0
DQ7 VSSQ
DQ5 VDDQ
DQ3 VDDQ
L
VDDQ DQ8
M
VSSQ DQ10 DQ9
N
VSSQ DQ12 DQ14
P
DQ11 VDDQ VSSQ VDDQ VS...