HY5PS2G431AMP Datasheet, PDF (8/35 Pages) Hynix Semiconductor – 2Gb DDR2 SDRAM(DDP)

1HY5PS2G431AMP
1HY5PS2G831AMP
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PIN
TYPE
DESCRIPTION
Data Strobe : Output with read data, input with write data. Edge aligned with read
data, centered in write data. For the x16, LDQS correspond to the data on
DQ0~DQ7; UDQS corresponds to the data on DQ8~DQ15. For the x8, an RDQS
option using DM pin can be enabled via the EMRS(1) to simplify read timing. The data
strobes DQS, LDQS, UDQS, and RDQS may be used in single ended mode or paired
with optional complementary signals DQS, LDQS,UDQS and RDQS to provide differ-
ential pair signaling to the system during both reads and writes. An EMRS(1) control
bit enables or disables all complementary data strobe signals.
DQS, (DQS)
(UDQS),(UDQS)
(LDQS),(LDQS)
(RDQS),(RDQS)
Input/
Output
In this data sheet, "differential DQS signals" refers to any of the following with A10 =
0 of EMRS(1)
x4 DQS/DQS
x8 DQS/DQS
if EMRS(1)[A11] = 0
x8 DQS/DQS, RDQS/RDQS,
if EMRS(1)[A11] = 1
x16 LDQS/LDQS and UDQS/UDQS
"single-ended DQS signals" refers to any of the following with A10
= 1 of EMRS(1)
x4 DQS
x8 DQS
if EMRS(1)[A11] = 0
x8 DQS, RDQS, if EMRS(1)[A11] = 1
x16 LDQS and UDQS
NC
VDDQ
VSSQ
VDDL
VSSDL
VDD
VSS
VREF
No Connect : No internal electrical connection is present.
Supply DQ Power Supply: 1.8V +/- 0.1V
Supply DQ Ground
Supply DLL Power Supply : 1.8V +/- 0.1V
Supply DLL Ground
Supply Power Supply : 1.8V +/- 0.1V
Supply Ground
Supply Reference voltage for inputs for SSTL interface.
Rev. 0.6 / Oct. 2007
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