參數(shù)資料
型號(hào)： AK51616384W
廠商： Accutek Microcircuit Corporation
英文描述： 262,144 X 8 Bit MOS Dynamic Random Access Memory
中文描述： 262,144 × 8位馬鞍山動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器
文件頁(yè)數(shù)： 1/2頁(yè)
文件大?。?/td> 111K
代理商： AK51616384W
DESCRIPTION
The Accutek AK48256 high density memory modules is a random
access memory organized in 256K x 8 bit words. The assembly
consists of eight standard 256K x 1 DRAMs in plastic leaded chip
carriers (PLCC) mounted on the front side of a printed circuit board.
Themodulecanbeconfiguredasaleadless30padSIMoraleaded
30 pin SIP. This packaging approach provides a 6 to 1 density in-
crease over standard DIP packaging.
TheoperationoftheAK48256isidenticaltoeight256Kx1DRAMs.
The data input is tied to the data output and brought out separately
for each device, with common RAS, CAS and WE control. This
commonI/Ofeaturedictatestheuseofearly-writecyclestoprevent
contentionofDandQ. SincetheWrite-Enable(WE)signalmustal-
ways go low before CAS in a write cycle, Read-Write and
Read-Modify-Write operation is not possible.
FEATURES
262,144 by 8 bit organization
Optional 30 Pad leadless SIM (Single In-Line Module) or 30
Pin leaded SIP (Single In-Line Package)
JEDEC standard pinout
Each device has common D and Q lines with common RAS,
CAS and WE control
2.8 Watt active and 180 mW standby (max)
Operating free air temperature 0
0
C to 70
0
C
Upward compatible with AK481024, AK581024, AK584096 and
AK5816384
Functionally and Pin compatible with AK58256A
Accutek
Microcircuit
Corporation
AK48256S / AK48256G
262,144 X 8 Bit MOS
Dynamic Random Access Memory
1
30
1
Front View
30-Pin SIM
30-Pin SIP
PIN NOMENCLATURE
A
0
- A
8
Address Inputs
DQ
1
- DQ
8
Data In / Data Out
CAS
Column Address Strobe
RAS
Row Address Strobe
WE
Write Enable
Vcc
5v Supply
Vss
Ground
NC
No Connect
MODULE OPTIONS
Leadless SIM: AK48256S
Leaded SIP: AK48256G
PIN ASSIGNMENT
PIN #
SYMBOL
PIN #
SYMBOL
1
Vcc
16
DQ5
2
CAS
17
A8
3
DQ!
18
NC
4
A0
19
NC
5
A1
20
DQ6
6
DQ2
21
WE
7
A2
22
Vss
8
A3
23
DQ7
9
Vss
24
NC
10
DQ3
25
DQ8
11
A4
26
NC
12
A5
27
RAS
13
DQ4
28
NC
14
A6
29
NC
15
A7
30
Vcc
FUNCTIONAL DIAGRAM
相關(guān)PDF資料
PDF描述
AK51616384Z 262,144 X 8 Bit MOS Dynamic Random Access Memory
AK516256D 262,144 X 8 Bit MOS Dynamic Random Access Memory
AK516256G 262,144 X 8 Bit MOS Dynamic Random Access Memory
AK516256S 262,144 X 8 Bit MOS Dynamic Random Access Memory
AK516256W 262,144 X 8 Bit MOS Dynamic Random Access Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK51616384Z 制造商:ACCUTEK 制造商全稱:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory
AK516256D 制造商:ACCUTEK 制造商全稱:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory
AK516256G 制造商:ACCUTEK 制造商全稱:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:32,768 x 32 Bit CMOS / BiCMOS Static Random Access Memory
AK516256S 制造商:ACCUTEK 制造商全稱:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory
AK516256W 制造商:ACCUTEK 制造商全稱:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory
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