W9825G2JB-6I-TR Datasheet, PDF (3/42 Pages) Winbond – 4 M X 4 BANKS X 16 BITS SDRAM

W9825G6JB
1. GENERAL DESCRIPTION
W9825G6JB automotive grade is a high-speed synchronous dynamic random access memory
(SDRAM), organized as 4M words  4 banks  16 bits. This device delivers a data bandwidth of up to
166M words per second. W9825G6JB is sorted into the following speed grades: -6, -6I and -75. The -6
grade is compliant to the 166MHz/CL3 or 133MHz/CL2 specification. The -6I industrial grade is
compliant to the 166MHz/CL3 specification guaranteed to support -40°C ≤ TA ≤ 85°C. The -75 grade is
compliant to the 133MHz/CL3 specification.
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. W9825G6JB is ideal for main memory in
high performance applications.
2. FEATURES
 3.3V ± 0.3V Power Supply
 Up to 166 MHz Clock Frequency
 4,194,304 Words  4 Banks  16 Bits Organization
 Self Refresh Mode: Standard and Low Power
 CAS Latency: 2 and 3
 Burst Length: 1, 2, 4, 8 and Full Page
 Burst Read, Single Writes Mode
 Byte Data Controlled by LDQM, UDQM
 Power Down Mode
 Auto-precharge and Controlled Precharge
 8K Refresh Cycles/64 mS
 Interface: LVTTL
 Packaged in TFBGA 54 Ball (8x8 mm²), using lead free materials with RoHS compliant
3. ORDER INFORMATION
PART NUMBER
W9825G6JB-6
W9825G6JB-6I
W9825G6JB-75
SPEED GRADE
166MHz/CL3 or 133MHz/CL2
166MHz/CL3
133MHz/CL3
SELF REFRESH
CURRENT (MAX)
2mA
2mA
2mA
OPERATING
TEMPERATURE
0°C ~ 70°C
-40°C ~ 85°C
0°C ~ 70°C
Publication Release Date: Jul. 17, 2014
-3-
Revision: A05