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W981616BH Datasheet

  • W981616BH

  • 512K ⅴ 2 BANKS ⅴ 16 BITS SDRAM

  • 40頁

  • WINBOND

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W981616BH
512K
脳
2 BANKS
脳
16 BITS SDRAM
GENERAL DESCRIPTION
W981616BH is a high-speed synchronous dynamic random access memory (SDRAM), organized as
512K words
脳
2 banks
脳
16 bits. Using pipelined architecture and 0.175
碌m
process technology,
W981616BH delivers a data bandwidth of up to 332M bytes per second (-5). For different applications
the W981616BH is sorted into the following speed grades: -5, -6, and 鈥?(L).
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. W981616BH is ideal for main memory in
high performance applications.
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
3.3V 鹵0.3V power supply
Up to 166 MHz clock frequency
524,288 words x 2 banks x 16 bits organization
Auto Refresh and Self Refresh
CAS latency: 2 and 3
Burst Length: 1, 2, 4, 8, and full page
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Burst read, Single Write Mode
Byte data controlled by UDQM and LDQM
Auto-precharge and controlled precharge
4K refresh cycles/64 mS
Interface: LVTTL
Packaged in 50-pin, 400 mil TSOP II
PIN CONFIGURATION
V
CC
DQ0
DQ1
V
SS
Q
DQ2
DQ3
V
CC
Q
DQ4
DQ5
V
SS
Q
DQ6
DQ7
V
CC
Q
LDQM
WE
CAS
RAS
CS
BA
A10
A0
A1
A2
A3
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
V
SS
DQ15
DQ14
V
SS
Q
DQ13
DQ12
V
CC
Q
DQ11
DQ10
V
SS
Q
DQ9
DQ8
V
CC
Q
NC
UDQM
CLK
CKE
NC
A9
A8
A7
A6
A5
A4
V
SS
-1-
Publication Release Date: February 2000
Revision A2

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