K4B1G0446G Datasheet, PDF(11/64 Page) Samsung semiconductor

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

K4B1G0446G Datasheet, PDF (11/64 Pages) Samsung semiconductor – 1Gb G-die DDR3 SDRAM

◁

K4B1G0446G

K4B1G0846G

datasheet

Rev. 1.01

DDR3 SDRAM

6. Absolute Maximum Ratings

6.1 Absolute Maximum DC Ratings

[ Table 4 ] Absolute Maximum DC Ratings

Symbol

Parameter

Rating

Units

NOTE

VDD

VDDQ

VIN, VOUT

TSTG

Voltage on VDD pin relative to Vss

Voltage on VDDQ pin relative to Vss

Voltage on any pin relative to Vss

Storage Temperature

-0.4 V ~ 1.975 V

-55 to +100

1,3

Â°C

1, 2

NOTE :

1. Stresses greater than those listed under âAbsolute Maximum Ratingsâ may cause permanent damage to the device. This is a stress rating only and functional operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions

for extended periods may affect reliability.

2. Storage Temperature is the case surface temperature on the center/top side of the DRAM. For the measurement conditions, please refer to JESD51-2 standard.

3. VDD and VDDQ must be within 300mV of each other at all times; and VREF must be not greater than 0.6 x VDDQ, When VDD and VDDQ are less than 500mV; VREF may be

equal to or less than 300mV.

6.2 DRAM Component Operating Temperature Range

[ Table 5 ] Temperature Range

Symbol

Parameter

rating

Unit

NOTE

TOPER

Operating Temperature Range

0 to 95

Â°C

1, 2, 3

NOTE :

1. Operating Temperature TOPER is the case surface temperature on the center/top side of the DRAM. For measurement conditions, please refer to the JEDEC document

JESD51-2.

2. The Normal Temperature Range specifies the temperatures where all DRAM specifications will be supported. During operation, the DRAM case temperature must be main-

tained between 0-85Â°C under all operating conditions

3. Some applications require operation of the Extended Temperature Range between 85Â°C and 95Â°C case temperature. Full specifications are guaranteed in this range, but the

following additional conditions apply:

a) Refresh commands must be doubled in frequency, therefore reducing the refresh interval tREFI to 3.9us.

b) If Self-Refresh operation is required in the Extended Temperature Range, then it is mandatory to either use the Manual Self-Refresh mode with Extended Temperature

Range capability (MR2 A6 = 0b and MR2 A7 = 1b), in this case IDD6 current can be increased around 10~20% than normal Temperature range.

7. AC & DC Operating Conditions

7.1 Recommended DC operating Conditions (SSTL_1.5)

[ Table 6 ] Recommended DC Operating Conditions

Symbol

Parameter

Min.

VDD

Supply Voltage

1.425

VDDQ

Supply Voltage for Output

1.425

NOTE :

1. Under all conditions VDDQ must be less than or equal to VDD.

2. VDDQ tracks with VDD. AC parameters are measured with VDD and VDDQ tied together.

Rating

Typ.

1.5

Max.

1.575

Units

NOTE

1,2

- 11 -

▷