參數(shù)資料
型號: MCM6227BWJ17
廠商: MOTOROLA INC
元件分類: SRAM
英文描述: 1M x 1 Bit Static Random Access Memory
中文描述: 1M X 1 STANDARD SRAM, 17 ns, PDSO28
封裝: 0.400 INCH, SOJ-28
文件頁數(shù): 2/8頁
文件大?。?/td> 147K
代理商: MCM6227BWJ17
MCM6227B
2
MOTOROLA FAST SRAM
TRUTH TABLE
E
W
Mode
I/O Pin
Cycle
Current
H
X
Not Selected
High–Z
ISB1, ISB2
ICCA
ICCA
L
H
Read
Dout
High–Z
Read
L
L
Write
Write
H = High, L = Low, X = Don’t Care
ABSOLUTE MAXIMUM RATINGS
(See Note)
Rating
Symbol
Value
Unit
Power Supply Voltage Relative to VSS
Voltage Relative to VSS for Any Pin
Except VCC
VCC
Vin, Vout
– 0.5 to 7.0
V
– 0.5 to VCC + 0.5
V
Output Current
Iout
±
20
mA
Power Dissipation
PD
Tbias
TA
Tstg
1.1
W
Temperature Under Bias
– 10 to + 85
°
C
Operating Temperature
0 to + 70
°
C
Storage Temperature
– 55 to + 150
°
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.
DC OPERATING CONDITIONS AND CHARACTERISTICS
(VCC = 5.0 V
±
10%, TA = 0 to 70
°
C, Unless Otherwise Noted)
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Min
Max
Unit
Supply Voltage (Operating Voltage Range)
VCC
VIH
VIL
4.5
5.5
V
Input High Voltage
2.2
VCC +0.3**
0.8
V
Input Low Voltage
– 0.5*
V
*VIL (min) = – 0.5 V dc; VIL (min) = – 2.0 V ac (pulse width
20 ns).
**VIH (max) = VCC + 0.3 V dc; VIH (max) = VCC + 2 V ac (pulse width
20 ns).
DC CHARACTERISTICS AND SUPPLY CURRENTS
Parameter
Symbol
Min
Max
Unit
Input Leakage Current (All Inputs, Vin = 0 to VCC)
Output Leakage Current (E = VIH, Vout = 0 to VCC)
AC Active Supply Current (Iout = 0 mA, VCC = max)
Ilkg(I)
Ilkg(O)
ICCA
±
1
μ
A
±
1
μ
A
MCM6227B–15: tAVAV = 15 ns
MCM6227B–17: tAVAV = 17 ns
MCM6227B–20: tAVAV = 20 ns
MCM6227B–25: tAVAV = 25 ns
MCM6227B–35: tAVAV = 35 ns
115
110
105
100
95
mA
AC Standby Current (VCC = max, E = VIH, f
fmax)
MCM6227B–15: tAVAV = 15 ns
MCM6227B–17: tAVAV = 17 ns
MCM6227B–20: tAVAV = 20 ns
MCM6227B–25: tAVAV = 25 ns
MCM6227B–35: tAVAV = 35 ns
ISB1
40
35
30
25
20
mA
CMOS Standby Current (E
VCC – 0.2 V, Vin
VSS + 0.2 V
or
VCC – 0.2 V, VCC = max, f = 0 MHz)
ISB2
5
mA
Output Low Voltage (IOL = + 8.0 mA)
Output High Voltage (IOH = – 4.0 mA)
VOL
VOH
0.4
V
2.4
V
This device contains circuitry to protect the
inputs against damage due to high static volt-
ages 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 these high–impedance
circuits.
This CMOS memory circuit has been de-
signed to meet the dc and ac specifications
shown in the tables, after thermal equilibrium
has been established. The circuit is in a test
socket or mounted on a printed circuit board
and transverse air flow of at least 500 linear feet
per minute is maintained.
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