MCM44256B View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MCM44256B Datasheet PDF : 8 Pages
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ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to VSS = 0 V)
Rating
Symbol
Value
Unit
Power Supply Voltage
VCC
– 0.5 to 7.0
V
Voltage Relative to VSS
Vin, Vout – 0.5 to VCC + 0.5 V
Output Current (per I/O)
Iout
± 30
mA
Power Dissipation
PD
10
W
Temperature Under Bias
Tbias
– 10 to + 85
°C
Storage Temperature
Tstg
– 25 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 devices on this module contain 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 these high–imped-
ance circuits.
These BiCMOS memory circuits have been
designed to meet the dc and ac specifications
shown in the tables, after thermal equilibrium
has been established. The module 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.
DC OPERATING CONDITIONS AND CHARACTERISTICS
(VCC = 5.0 V ± 10%, TA = 0 to + 70°C, Unless Otherwise Noted)
RECOMMENDED OPERATING CONDITIONS (Voltages Referenced to VSS = 0 V)
Parameter
Symbol
Min
Typ
Supply Voltage (Operating Voltage Range)
VCC
4.5
5.0
Input High Voltage
VIH
(DQ0 – 35, TDQ0 – 7, WE, A0)
2.2
—
(A1 – A17, OE, DCS, TCS)
2.0
—
Input Low Voltage
VIL
– 0.5**
—
* VIH (max) = VCC + 0.3 V dc; VIH (max) = VCC + 2 V ac (pulse width ≤ 20 ns).
** VIL (min) = – 3.0 V ac (pulse width ≤ 20 ns).
DC CHARACTERISTICS
Parameter
Symbol
Min
Typ
Input Leakage Current (All Inputs, Vin = 0 to VCC)
Ilkg(I)
Output Leakage Current (G, xCS = VIH, Vout = 0 to VCC)
Ilkg(O)
AC Supply Current (G, xCS = VIL, Iout = 0 mA)
ICCA
Output Low Voltage (IOL = + 8 mA)
VOL
OUtput High Voltage (IOH = – 4.0 mA)
VOH
2.4
NOTE: Good decoupling of the local power supply should always be used.
CAPACITANCE (f = 1.0 MHz, dV = 3.0 V, TA = 25°C, Periodically Sampled Rather Than 100% Tested)
Parameter
Symbol
Typ
Input Capacitance
(A0, WE)
Cin
(A1 – A17, OE, DCS, TCS)
Cin
Input/Output Capacitance
Cout
Max
Unit
5.5
V
V
VCC + 0.3 V*
VCC + 0.3 V*
0.8
V
Max
Unit
± 10
µA
± 10
µA
1750
mA
0.4
V
V
Max
Unit
110
pF
10
pF
10
pF
MOTOROLA FAST SRAM
MCM44256B SERIES
3
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