IS43DR16640A-25DBLI ISSI, Integrated Silicon Solution Inc, IS43DR16640A-25DBLI Datasheet - Page 3

• Manufacturer Part Number: IS43DR16640A-25DBLI
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: DDR2 SDRAMr

Specifications of IS43DR16640A-25DBLI

• Organization: 64Mx16
• Density: 1Gb
• Address Bus: 16b
• Access Time (max): 400ps
• Maximum Clock Rate: 800MHz
• Operating Supply Voltage (typ): 1.8V
• Package Type: FBGA
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (max): 1.9V
• Operating Supply Voltage (min): 1.7V
• Pin Count: 84
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Compliant

IS43/46DR81280A, IS43/46DR16640A
DDR2 SDRAM (64Mx16) BGA Ball‐out (Top‐View) (8.00mm x 13.65mm Body, 0.8mm pitch)
Integrated Silicon Solution, Inc. – www.issi.com –
Rev. 00D, 8/17/2010
RAS#,CAS#,WE#
UDQS, UDQS#
LDQS, LDQS#
UDM, LDM
DQ[15:0]
Symbol
CK, CK#
BA[2:0]
A[12:0]
VDDQ
VSSDL
VSSQ
VDDL
VREF
VDD
ODT
CKE
CS#
VSS
NC
Description
Input clocks
Clock enable
Chip Select
Command control inputs
Address
Bank Address
I/O
Upper Byte Data Strobe
Lower Byte Data Strobe
Input data mask
Supply voltage
Ground
DQ power supply
DQ ground
Reference voltage
DLL power supply
DLL ground
On Die Termination Enable
No connect
M
C
D
G
H
N
R
A
B
E
K
P
F
L
J
VDDQ
VDDQ
1
DQ14
DQ12
VDDL
VDD
VDD
DQ6
DQ4
VDD
BA2
VSS
A10/AP
2
VSSQ
VSSQ
VSSQ
VSSQ
VREF
DQ9
DQ1
BA0
CKE
A12
NC
NC
A3
A7
3 4
VDDQ
VDDQ
DQ11
UDM
LDM
DQ3
WE
BA1
VSS
VSS
VSS
NC
A1
A5
A9
5
6 7
Note:
VDDL and VSSDL are power and ground for the DLL. It is
recommended that they are isolated on the device from
VDD, VDDQ, VSS, and VSSQ.
VSSDL
UDQS
VDDQ
VDDQ
VSSQ
DQ10
VSSQ
LDQS
RAS
CAS
DQ2
A11
NC
A2
A6
Not populated
UDQS
LDQS
8
VSSQ
VSSQ
VSSQ
VSSQ
DQ8
DQ0
CK
CS
NC
CK
A0
A4
A8
VDDQ
VDDQ
VDDQ
VDDQ
DQ15
DQ13
9
DQ7
DQ5
VDD
ODT
VDD
VSS
3