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參數(shù)資料
| 型號： | IS42S83200B-6TL |
| 廠商： | INTEGRATED SILICON SOLUTION INC |
| 元件分類： | DRAM |
| 英文描述： | 32Meg x 8, 16Meg x16 256-MBIT SYNCHRONOUS DRAM |
| 中文描述： | 32M X 8 SYNCHRONOUS DRAM, 5.4 ns, PDSO54 |
| 封裝： | LEAD FREE, PLASTIC, TSOP2-54 |
| 文件頁數(shù)： | 2/62頁 |
| 文件大小： | 646K |
| 代理商： | IS42S83200B-6TL |
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ISSI
2
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
PRELIMINARY INFORMATION
Rev. 00E
05/25/06
IS42S83200B, IS42S16160B
DEVICE OVERVIEW
The 256Mb SDRAM is a high speed CMOS, dynamic
random-access memory designed to operate in 3.3V V
DD
and 3.3V V
DDQ
memory systems containing 268,435,456
bits. Internally configured as a quad-bank DRAM with a
synchronous interface. Each 67,108,864-bit bank is orga-
nized as 8,192 rows by 512 columns by 16 bits or 8,192 rows
by 1,024 columns by 8 bits.
The 256Mb SDRAM includes an AUTO REFRESH MODE,
and a power-saving, power-down mode. All signals are
registered on the positive edge of the clock signal, CLK. All
inputs and outputs are LVTTL compatible.
The 256Mb SDRAM has the ability to synchronously burst
data at a high data rate with automatic column-address
generation, the ability to interleave between internal banks
to hide precharge time and the capability to randomly
change column addresses on each clock cycle during burst
access.
A self-timed row precharge initiated at the end of the burst
sequence is available with the AUTO PRECHARGE func-
tion enabled.
Precharge
one bank while accessing one of the
other three banks will hide the
precharge
cycles and provide
seamless, high-speed, random-access operation.
SDRAM
read and write accesses are burst oriented starting at
a selected location and continuing for a programmed num-
ber of locations in a programmed sequence. The registra-
tion of an ACTIVE command begins accesses, followed by
a READ or WRITE command. The ACTIVE command in
conjunction with address bits registered are used to select
the bank and row to be accessed (BA0, BA1 select the
bank; A0-A12 select the row). The READ or WRITE
commands in conjunction with address bits registered are
used to select the starting column location for the burst
access.
Programmable READ or WRITE burst lengths consist of 1,
2, 4 and 8 locations or full page, with a burst terminate
option.
CLK
CKE
CS
RAS
CAS
WE
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
BA0
BA1
A10
A12
A11
COMMAND
DECODER
&
CLOCK
GENERATOR
MODE
REGISTER
REFRESH
CONTROLLER
REFRESH
COUNTER
SELF
REFRESH
CONTROLLER
ROW
ADDRESS
LATCH
M
COLUMN
ADDRESS LATCH
BURST COUNTER
COLUMN
ADDRESS BUFFER
COLUMN DECODER
DATA IN
BUFFER
DATA OUT
BUFFER
DQML
DQMH
DQ 0-15
V
DD
/V
DDQ
V
ss
/V
ss
Q
13
13
9
13
13
9
16
16
16
16
512
(x 16)
8192
8192
8192
8192
R
MEMORY CELL
ARRAY
BANK 0
SENSE AMP I/O GATE
BANK CONTROL LOGIC
ROW
ADDRESS
BUFFER
2
FUNCTIONAL BLOCK DIAGRAM (FOR 4MX16X4 BANKS SHOWN)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IS42S83200B-7T | 32Meg x 8, 16Meg x16 256-MBIT SYNCHRONOUS DRAM |
| IS42S83200B-7TI | 32Meg x 8, 16Meg x16 256-MBIT SYNCHRONOUS DRAM |
| IS42S83200B-7TL | 32Meg x 8, 16Meg x16 256-MBIT SYNCHRONOUS DRAM |
| IS42S83200B-7TLI | 32Meg x 8, 16Meg x16 256-MBIT SYNCHRONOUS DRAM |
| IS42S16160B | 32Meg x 8, 16Meg x16 256-MBIT SYNCHRONOUS DRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IS42S83200B-6TLI | 功能描述:動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器 256M (32Mx8) 166MHz Industrial Temp RoHS:否 制造商:ISSI 數(shù)據(jù)總線寬度:16 bit 組織:1 M x 16 封裝 / 箱體:SOJ-42 存儲(chǔ)容量:16 MB 最大時(shí)鐘頻率: 訪問時(shí)間:50 ns 電源電壓-最大:7 V 電源電壓-最小:- 1 V 最大工作電流:90 mA 最大工作溫度:+ 85 C 封裝:Tube |
| IS42S83200B-6TLI-TR | 功能描述:動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器 256M (32Mx8) 166MHz Industrial Temp RoHS:否 制造商:ISSI 數(shù)據(jù)總線寬度:16 bit 組織:1 M x 16 封裝 / 箱體:SOJ-42 存儲(chǔ)容量:16 MB 最大時(shí)鐘頻率: 訪問時(shí)間:50 ns 電源電壓-最大:7 V 電源電壓-最小:- 1 V 最大工作電流:90 mA 最大工作溫度:+ 85 C 封裝:Tube |
| IS42S83200B-6TL-TR | 功能描述:動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器 256M 3.3v 32Mx8 166MHz RoHS:否 制造商:ISSI 數(shù)據(jù)總線寬度:16 bit 組織:1 M x 16 封裝 / 箱體:SOJ-42 存儲(chǔ)容量:16 MB 最大時(shí)鐘頻率: 訪問時(shí)間:50 ns 電源電壓-最大:7 V 電源電壓-最小:- 1 V 最大工作電流:90 mA 最大工作溫度:+ 85 C 封裝:Tube |
| IS42S83200B-6T-TR | 功能描述:動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器 256M 3.3v 32Mx8 166MHz RoHS:否 制造商:ISSI 數(shù)據(jù)總線寬度:16 bit 組織:1 M x 16 封裝 / 箱體:SOJ-42 存儲(chǔ)容量:16 MB 最大時(shí)鐘頻率: 訪問時(shí)間:50 ns 電源電壓-最大:7 V 電源電壓-最小:- 1 V 最大工作電流:90 mA 最大工作溫度:+ 85 C 封裝:Tube |
| IS42S83200B-7T | 功能描述:動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器 256M 3.3v 32Mx8 143MHz RoHS:否 制造商:ISSI 數(shù)據(jù)總線寬度:16 bit 組織:1 M x 16 封裝 / 箱體:SOJ-42 存儲(chǔ)容量:16 MB 最大時(shí)鐘頻率: 訪問時(shí)間:50 ns 電源電壓-最大:7 V 電源電壓-最小:- 1 V 最大工作電流:90 mA 最大工作溫度:+ 85 C 封裝:Tube |
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