46DR83200A Datasheet, PDF (4/48 Pages) Integrated Silicon Solution, Inc – 32Mx8, 16Mx16 DDR2 DRAM

IS43/46DR83200A, IS43/46DR16160A
Symbol
DQ0-7 x8
DQ0-15 x16
DQS, (DQS)
RDQS, (RDQS) x8
UDQS, (UDQS),
LDQS, (LDQS) x16
Type
Input/
Output
Input/
Output
Function
Data Input/Output: Bi-directional data bus.
Data Strobe: output with read data, input with write data. Edge-aligned with read data,
centered in write data. The data strobes DQS(n) may be used in single ended mode
or paired with optional complementary signals DQS(n) to provide differential pair
signaling to the system during both reads and writes. A control bit at EMR(1)[A10]
enables or disables all complementary data strobe signals.
x8
DQS corresponds to the data on DQ0-DQ7
RDQS corresponds to the Read data on DQ0-DQ7, and is enabled by EMRS
command to EMR(1) [A11].
NC
VDDQ
VSSQ
VDDL
VSSDL
VDD
VSS
VREF
Supply
Supply
Supply
Supply
Supply
Supply
Supply
x16
LDQS corresponds to the data on DQ0-DQ7
UDQS corresponds to the data on DQ8-DQ15
No Connect: No internal electrical connection is present.
DQ Power Supply: 1.8 V +/- 0.1 V
DQ Ground
DLL Power Supply: 1.8 V +/- 0.1 V
DLL Ground
Power Supply: 1.8 V +/- 0.1 V
Ground
Reference voltage
4
Integrated Silicon Solution, Inc. — www.issi.com
Rev. D
08/16/2012