IS43DR16640A-25DBLI ISSI, Integrated Silicon Solution Inc, IS43DR16640A-25DBLI Datasheet - Page 2

• 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
Package Ball‐out and Description
DDR2 SDRAM (128Mx8) 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#
RDQS, RDQS#
DQS, DQS#
DQ[7:0]
Symbol
CK, CK#
BA[2:0]
A[13:0]
VDDQ
VSSDL
VSSQ
VDDL
VREF
VDD
ODT
CKE
CS#
DM
VSS
NC
Description
Input clocks
Clock enable
Chip Select
Command control pins
Address
Bank Address
I/O
Data Strobe
Redundant 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
Notes:
1. Pins B3 and A2 have identical capacitance as pins B7
and A8.
2. For a read, when enabled, strobe pair RDQS & RDQS#
are identical in function and timing to strobe pair DQS &
DQS# and input masking function is disabled.
3. The function of DM or RDQS/RDQS# are enabled by
EMRS command.
4. 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.
2