- 您現在的位置：買賣IC網 > PDF目錄361731 > VG4632321AQ-55 (VANGUARD INTERNATIONAL SEMICONDUCTOR CORP) 524,288x32x2-Bit CMOS Synchronous Graphic RAM PDF資料下載
參數資料
| 型號： | VG4632321AQ-55 |
| 廠商： | VANGUARD INTERNATIONAL SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | 524,288x32x2-Bit CMOS Synchronous Graphic RAM |
| 中文描述： | 1M X 32 SYNCHRONOUS GRAPHICS RAM, 5 ns, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁數： | 1/81頁 |
| 文件大小： | 1965K |
| 代理商： | VG4632321AQ-55 |
當前第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁
Document:
Rev.1
Page 1
VIS
Preliminary
VG4632321A
524,288x32x2-Bit
CMOS Synchronous Graphic RAM
Overview
The VG4632321A SGRAM is a high-speed CMOS synchronous graphic RAM containing 32M bits. It is
internally configured as a dual 512K x 32 DRAM with a synchronous interface (all signals are registered on
the positive edge of the clock signal, CLK). Each of the 512K x 32 bit bank is organized as 2048 rows by 256
columns by 32 bits. Read and write accesses to the SGRAM are burst oriented; accesses start at a selected
location and continue for a programmed number of locations in a programmed sequence. Accesses begin
with the registration of a BankActivate command which is then followed by a Read or Write command.
The VG4632321A provides for programmable Read or Write burst lengths of 1, 2, 4, 8, or full page, with
burst termination option. An Auto Precharge function may be enabled to provide a self-timed row precharge
that is initiated at the end of the burst sequence. The refresh functions, either Auto or Self Refresh are easy
to use. In addition, it features the write per bit and the masked block write functions.
By having a programmable Mode register and special mode register, the system can choose the best
suitable modes to maximize its performance. These devices are well suited for applications requiring high
memory bandwidth, and when combined with special graphics functions result in a device particularly well
suited to high performance graphics applications.
Features
Fast access time from clock: 4.5/5/5.5/6/7ns
Fast clock rate: 222/200/183/166/143MHz
Fully synchronous operation
Internal pipelined architecture
Dual internal banks(512K x 32-bit x 2-bank)
Programmable Mode and Special Mode registers
- CAS Latency: 1, 2, or 3
- Burst Length: 1, 2, 4, 8, or full page
- Burst Type: interleaved or linear burst
- Burst Read Single Write
- Load Color or Mask register
Burst stop function
Individual byte controlled by DQM0-3
Block write and write-per-bit capability
Auto Refresh and Self Refresh
2048 refresh cycles/32ms
Single + 3.3V
power supply
Interface: LVTTL
JEDEC 100-pin Plastic QFP package
0.3V
±
DQ3
V
DDQ
DQ4
DQ5
V
SSQ
DQ6
DQ7
V
DDQ
DQ16
DQ17
V
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
26
27
28
29
30
DQ18
V
DDQ
V
DD
V
SS
DQ20
V
SSQ
DQ22
V
DDQ
DQM0
DQM2
WE
CAS
RAS
CS
BS
A9
DQ28
V
DDQ
DQ27
DQ26
V
DQ25
DQ24
V
DQ15
DQ14
V
DQ13
DQ12
V
DDQ
V
SS
V
DQ11
DQ10
V
DQ9
DQ8
V
DDQ
NC
DQM3
DQM1
CLK
CKE
DSF
NC
A8/AP
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
D
V
S
D
D
V
S
N
N
N
N
N
N
N
N
N
D
D
D
N
V
D
V
S
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
1
8
A
A
A
A
V
S
A
N
N
N
N
N
N
N
N
A
A
A
N
V
D
A
4
4
4
4
4
4
4
4
4
4
3
3
3
3
3
3
3
3
3
5
Pin Assignment (Top View)
Key Specifications
VG4632321A
-4.5/-5/-5.5/-6/-7
t
CK
Clock Cycle time(min.)
4.5/5/5.5/6/7 ns
t
RAS
Row Active time(min.)
40/40/40/42/42 ns
t
AC
Access time from CLK(max.)
4/4.5/5/5.5/6 ns
t
RC
Row Cycle time(min.)
55/55/56.5/60/62 ns
相關PDF資料 |
PDF描述 |
|---|---|
| VG4632321AQ-55R | 524,288x32x2-Bit CMOS Synchronous Graphic RAM |
| VG4632321AQ-5R | 524,288x32x2-Bit CMOS Synchronous Graphic RAM |
| VG4632321AQ-6 | 524,288x32x2-Bit CMOS Synchronous Graphic RAM |
| VG4632321AQ-6R | 524,288x32x2-Bit CMOS Synchronous Graphic RAM |
| VG4632321AQ-7 | 524,288x32x2-Bit CMOS Synchronous Graphic RAM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| VG4632321AQ-55R | 制造商:VML 制造商全稱:VML 功能描述:524,288x32x2-Bit CMOS Synchronous Graphic RAM |
| VG4632321AQ-5R | 制造商:VML 制造商全稱:VML 功能描述:524,288x32x2-Bit CMOS Synchronous Graphic RAM |
| VG4632321AQ-6 | 制造商:VML 制造商全稱:VML 功能描述:524,288x32x2-Bit CMOS Synchronous Graphic RAM |
| VG4632321AQ-6R | 制造商:VML 制造商全稱:VML 功能描述:524,288x32x2-Bit CMOS Synchronous Graphic RAM |
| VG4632321AQ-7 | 制造商:VML 制造商全稱:VML 功能描述:524,288x32x2-Bit CMOS Synchronous Graphic RAM |
發(fā)布緊急采購，3分鐘左右您將得到回復。