參數(shù)資料
型號(hào)： MB81117822A-100
廠商： Fujitsu Limited
英文描述： CMOS 2×1M ×8 Bit Synchronous Dynamic RAM(CMOS 2×1M ×8 位同步動(dòng)態(tài)RAM)
中文描述： 的CMOS 2 × 100萬× 8位同步動(dòng)態(tài)隨機(jī)存儲(chǔ)器（2 × 100萬的CMOS × 8位同步動(dòng)態(tài)RAM）的
文件頁(yè)數(shù)： 1/43頁(yè)
文件大?。?/td> 275K
代理商： MB81117822A-100
1
DS05-11022-1E
FUJITSU SEMICONDUCTOR
DATA SHEET
MEMORY
CMOS
2
×
1M
SYNCHRONOUS DYNAMIC RAM
×
8 BITS
MB81117822A-125/-100/-84/-67
CMOS 2 Banks of 1,048,576-WORDS
Synchronous Dynamic Random Access Memory
×
8 BITS
I
DESCRIPTION
The Fujitsu MB81117822A is a CMOS Synchronous Dynamic Random Access Memory (SDRAM) containing
16,777,216 memory cells accessible in an 8-bit format. The MB81117822A features a fully synchronous operation
referenced to a positive edge clock whereby all operations are synchronized at a clock input which enables high
performance and simple user interface coexistence. The MB81117822A SDRAM is designed to reduce the
complexity of using a standard dynamic RAM (DRAM) which requires many control signal timing constraints,
and may improve data bandwidth of memory as much as 5 times more than a standard DRAM.
The MB81117822A is ideally suited for laser printers, high resolution graphic adapters, accelerators and other
applications where an extremely large memory and bandwidth are required and where a simple interface is
needed.
I
PRODUCT LINE & FEATURES
Parameter
MB81117822A
-100
100 MHz max.
10 ns min.
54 ns max.
24 ns max.
8.5 ns max.
130 mA max.
2 mA max.
-125
-84
-67
Clock Frequency
Burst Mode Cycle Time
RAS Access Time
CAS Access Time
Access Time from Clock (CL = 3)
Operating Current (Two banks active)
Power Down Mode Current
125 MHz max.
8 ns min.
45 ns max.
21 ns max.
7.5 ns max.
140 mA max.
84 MHz max.
12 ns min.
56 ns max.
26 ns max.
8.5 ns max.
120 mA max.
67 MHz max.
15 ns min.
60 ns max.
30 ns max.
9 ns max.
110 mA max.
Single +3.3 V Supply
±
0.3 V tolerance
LVTTL compatible I/O
2 K refresh cycles every 32.8 ms
Dual bank operation
Byte control by DQM
Burst read/write operation and burst
read/single write operation capability
This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that normal precautions be
taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit.
Programmable burst type, burst
length, and CAS latency
Auto-and Self-refresh (every 16
μ
s)
CKE power down mode
Output Enable and Input Data Mask
相關(guān)PDF資料
PDF描述
MB81117822A-125 CMOS 2×1M ×8 Bit Synchronous Dynamic RAM(CMOS 2×1M ×8 位同步動(dòng)態(tài)RAM)
MB81117822A-67 CMOS 2×1M ×8 Bit Synchronous Dynamic RAM(CMOS 2×1M ×8 位同步動(dòng)態(tài)RAM)
MB81117822A-84 CMOS 2×1M ×8 Bit Synchronous Dynamic RAM(CMOS 2×1M ×8 位同步動(dòng)態(tài)RAM)
MB8116160A-60 CMOS 1 M ×16 BIT Fast Page Mode DRAM(CMOS 1 M ×16 位快速頁(yè)面存取模式動(dòng)態(tài)RAM)
MB8116160A-70 CMOS 1 M ×16 BIT Fast Page Mode DRAM(CMOS 1 M ×16 位快速頁(yè)面存取模式動(dòng)態(tài)RAM)
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