W9864G6JT Datasheet, PDF (3/42 Pages) Winbond – 1M  4 BANKS  16 BITS SDRAM

W9864G6JT
1. GENERAL DESCRIPTION
W9864G6JT is a high-speed synchronous dynamic random access memory (SDRAM), organized as
1M words  4 banks  16 bits. W9864G6JT delivers a data bandwidth of up to 166M words per
second. For different application, W9864G6JT is sorted into the following speed grades: -6, -6I, -6A
and -6K. They are compliant to the 166MHz/CL3 specification. -6I industrial grade and -6A automotive
grade which is guaranteed to support -40°C ≤ TA ≤ 85°C. The -6K automotive grade, if offered, has
two simultaneous requirements: ambient temperature (TA) surrounding the device cannot be less than
-40°C or greater than +105°C, and the case temperature (TCASE) cannot be less than -40°C or greater
than +105°C.
Accesses to the SDRAM are burst oriented. Consecutive memory location in one page can be
accessed at a burst length of 1, 2, 4, 8 or full page when a bank and row is selected by an ACTIVE
command. Column addresses are automatically generated by the SDRAM internal counter in burst
operation. Random column read is also possible by providing its address at each clock cycle.
The multiple bank nature enables interleaving among internal banks to hide the precharging time. By
having a programmable Mode Register, the system can change burst length, latency cycle, interleave
or sequential burst to maximize its performance. W9864G6JT is ideal for main memory in high
performance applications.
2. FEATURES
 3.3V  0.3V Power Supply
 Up to 166 MHz Clock Frequency
 1,048,576 Words  4 banks  16 bits organization
 Self Refresh Mode
 CAS Latency: 2 and 3
 Burst Length: 1, 2, 4, 8 and full page
 Sequential and Interleave Burst
 Burst Read, Single Writes Mode
 Byte Data Controlled by LDQM, UDQM
 Auto-precharge and Controlled Precharge
 4K Refresh cycles/64 mS, @ -40°C ≤ TA / TCASE ≤ 85°C
 4K Refresh cycles/16 mS, @ 85°C < TA / TCASE ≤ 105°C
 Interface: LVTTL
 Packaged in TFBGA 54 Ball (8x8 mm²), using lead free materials with RoHS compliant
 Not support self refresh function with TA / TCASE > 85°C
3. AVAILABLE PART NUMBER
PART NUMBER
W9864G6JT-6
W9864G6JT-6I
W9864G6JT-6A
W9864G6JT-6K
SPEED
166MHz/CL3
166MHz/CL3
166MHz/CL3
166MHz/CL3
SELF REFRESH
CURRENT (MAX.)
2 mA
2 mA
2 mA
5 mA
OPERATING
TEMPERATURE
0°C ~ 70°C
-40°C ~ 85°C
-40°C ~ 85°C
-40°C ~ 105°C
Publication Release Date: Dec. 23, 2011
-3-
Revision A01