參數(shù)資料
型號(hào): MCM67A618BFN12
廠商: MOTOROLA INC
元件分類(lèi): DRAM
英文描述: THERMISTORS
中文描述: 64K X 18 CACHE TAG SRAM, 12 ns, PQCC52
封裝: PLASTIC, LCC-52
文件頁(yè)數(shù): 2/12頁(yè)
文件大?。?/td> 141K
代理商: MCM67A618BFN12
MCM67A618B
2
MOTOROLA FAST SRAM
BLOCK DIAGRAM
A0 – A15
DQ0 – DQ17
MEMORY ARRAY
64K x 18
E
WRITE AMP
OUTPUT
BUFFER
CONTROL
16
18
AL
LW
UW
G
16
18
18
LATCH
DL
18
9
9
LATCH
LATCH
TRUTH TABLE
E
LW
UW
AL*
DL*
G
Mode
Supply
Current
I/O
Status
H
X
X
X
X
X
Deselected Cycle
ISB
ICC
ICC
ICC
ICC
ICC
ICC
ICC
ICC
High–Z
L
X
X
L
X
X
Read or Write Using Latched Addresses
L
X
X
H
X
X
Read or Write Using Unlatched Addresses
L
H
H
X
X
L
Read Cycle
Data Out
L
H
H
X
X
H
Read Cycle
High–Z
L
L
L
X
L
X
Write Both Bytes Using Latched Data In
High–Z
L
L
L
X
H
X
Write Both Bytes Using Unlatched Data In
High–Z
L
L
H
X
X
X
Write Cycle, Lower Byte
High–Z
L
H
L
X
X
X
Write Cycle, Lower Byte
High–Z
*E and Addresses satisfy the specified setup and hold times for the falling edge of AL. Data–in satisfies the specified setup
*
and hold times for falling edge of DL.
NOTE: This truth table shows the application of each function. Combinations of these functions are valid.
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to VSS = 0)
Rating
Symbol
Value
Unit
Power Supply Voltage
VCC
Vin, Vout
– 0.5 to 7.0
V
Voltage Relative to VSS for Any
Pin Except VCC
– 0.5 to VCC + 0.5
V
Output Current (per I/O)
Iout
±
30
mA
Power Dissipation
PD
Tbias
TA
Tstg
1.6
W
Temperature Under Bias
– 10 to + 85
°
C
Ambient Temperature
0 to + 70
°
C
Storage Temperature
– 55 to + 125
°
C
NOTE: Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are
exceeded. Functional operation should be restricted to RECOMMENDED OPER-
ATING CONDITIONS. Exposure to higher than recommended voltages for
extended periods of time could affect device reliability.
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 maxi-
mum rated voltages to this high–impedance
circuit.
This BiCMOS memory circuit has been
designed to meet the dc and ac specifications
shown in the tables, after thermal equilibrium
has been established.
This device contains circuitry that will ensure
the output devices are in High–Z at power up.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCM67A618BFN15 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:64K x 18 Bit Asynchronous/ Latched Address Fast Static RAM
MCM67A618FN10 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:64K x 18 Bit Asychronous/Latched Address Fast Static RAM
MCM67A618FN12 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:64K x 18 Bit Asychronous/Latched Address Fast Static RAM
MCM67A618FN15 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:64K x 18 Bit Asychronous/Latched Address Fast Static RAM
MCM67B518 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:32K x 18 Bit BurstRAM Synchronous Fast Static RAM