hy5ps1g831lf Hynix Semiconductor, hy5ps1g831lf Datasheet - Page 8

• Manufacturer Part Number: hy5ps1g831lf
• Description: 1gb Ddr2 Sdram
• Manufacturer: Hynix Semiconductor

Rev. 1.2 / Dec 2006
(UDQS),(UDQS)
(RDQS),(RDQS)
(LDQS),(LDQS)
DQS, (DQS)
V
V
VSSQ
V
V
VDD
PIN
V
NC
SSDL
DDQ
DDL
REF
SS
Input/Output
Supply
Supply
Supply
Supply
Supply
Supply
Supply
TYPE
Data Strobe : Output with read data, input with write data. Edge aligned with read data, cen-
tered in write data. For the x16, LDQS correspond to the data on DQ0~DQ7; UDQS corre-
sponds 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 differential pair signaling to the system during both reads
and wirtes. An EMRS(1) control bit enables or disables all complementary data strobe signals.
In this data sheet, "differential DQS signals" refers to any of the following with A10 = 0 of
EMRS(1)
EMRS(1)
No Connect : No internal electrical connection is present.
DQ Ground
DQ Power Supply : 1.8V +/- 0.1V
DLL Power Supply : 1.8V +/- 0.1V
DLL Ground
Ground
Reference voltage for inputs for SSTL interface.
Power Supply : 1.8V +/- 0.1V
"single-ended DQS signals" refers to any of the following with A10 = 1 of
x4 DQS/DQS
x8 DQS/DQS
x8 DQS/DQS, RDQS/RDQS,
x16 LDQS/LDQS and UDQS/UDQS
x4 DQS
x8 DQS
x8 DQS, RDQS,
x16 LDQS and UDQS
DESCRIPTION
if EMRS(1)[A11] = 0
if EMRS(1)[A11] = 1
1HY5PS1G431(L)F
1HY5PS1G831(L)F
if EMRS(1)[A11] = 0
if EMRS(1)[A11] = 1
-Continue-
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