VDS4616A4A Datasheet, PDF (1/8 Pages) A-Data Technology – Synchronous DRAM(512K X 16 Bit X 2 Banks)

V-Data
Synchronous DRAM
VDS4616A4A
512K x 16 Bit x 2 Banks
General Description
The VDS4616A4A are two-bank Synchronous
DRAMs organized as 524,288 words x 16 bits x 2
banks,
Synchronous design allows precise cycle control
with the use of system clock I/O transactions are
possible on every clock cycle.
Range of operating frequencies, programmable
burst length and programmable latencies allow the
same device to be useful for a variety of high
bandwidth high performance memory system
applications
Features
•Single 3.3V +/- 0.3V power supply
•MRS Cycle with address key programs
-CAS Latency (2 & 3)
-Burst Length (1,2,4,8, & full page)
-Burst Type (sequential & Interleave)
•2 banks operation
•All inputs are sampled at the positive edge of
the system clock
•Burst Read single write operation
•Auto & Self refresh
•4096 refresh cycle
•DQM for masking
•Package:50-pins 400 mil TSOP-Type II
Ordering Information.
Part No.
VDS4616A4A-5
VDS4616A4A -6
VDS4616A4A -7
Pin Assignment
Frequency
200Mhz
166Mhz
143Mhz
Interface
LVTTL
LVTTL
LVTTL
Package
400mil 50pin TSOPII
400mil 50pin TSOPII
400mil 50pin TSOPII
VDD
1
DQ0
2
DQ1
3
VSSQ
4
DQ2
5
DQ3
6
VDDQ
7
DQ4
8
DQ5
9
V SSQ
10
DQ6
11
DQ7
12
VDDQ
13
LDQM
14
/WE
15
/CAS
16
/RAS
17
/CS
18
(BS)A11
19
A10
20
A0
21
A1
22
A2
23
A3
24
VDD
25
50
Vss
49
DQ15
48
DQ14
47
VssQ
46
DQ13
45
DQ12
44
VDD Q
43
DQ11
42
DQ10
41
V_SSQ
40
DQ9
39
DQ8
38
V_DDQ
37
NC
36
UDQM
35
CLK
34
CKE
33
NC
32
A9
31
A8
30
A7
29
A6
28
A5
27
A4
26
VSS
50-pin plastic TSOP II 400 mil
Rev 1 December, 2001
1