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PDF M5M2167P-55 Data sheet ( Hoja de datos )
| Número de pieza | M5M2167P-55 | |
| Descripción | 16K-Bit Static RAM | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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MITSUBISHI LSI.
MSM2167P·SS, ·70
16384-BIT (16384-WORD BY I-BIT) STATIC RAM
DESCRIPTION
This is a family of 16384-word by l-bit static RAMs,
fabricated with the high-performance N-channel silicon-gate
MOS process and designed for high-speed application. These
devices operate on a single 5V supply, and are directly TTL
compatible. They include a power-down feature as well.
PIN CONFIGURATION (TOP VIEW)
Vee< 5V)
FEATURES
• Fast access time
M5M2167P-55 ...... 55 ns (max)
M5M2167p·70 ...... 70 ns (max)
• Low power dissipation Active ...............400 mW (typ)
Standy. by .......... 40 mW (typ)
• Power down by S
• Single 5V power supply
• Fully static operation
Requires neither external clock nor refreshing
• All inputs and output are directly TTL compatible
• Easy memory expansion by chip-select (5) input
• Interchangeable with Intel's 2167
ADDRESS
INPUTS
DATA OUTPUT
WRITE CONI~~~i W ~ 9
(OV) GND
Outline 20 P4
ADDRESS
INPUTS
DATA INPUT
CHIP SELECT
INPUT
APPLICATION
• High-speed memory systems
FUNCTION
A write operation is executed during the 5 low and W
low overlap time. In this period, address signals must be
stable. When W is low, the Q terminal is maintained in the
high impedance state, so it is possible to connect D and Q
terminals directly.
In a read operation, after setting W to high, and 5 to low
if the address signals are stable, the data is available at the
Q terminal.
When S is high, the chip is in the non-selectable state,
disabling both reading and writing. In this case the output
is in the floating (high-impedance) state, useful for OR-
ties with other devices.
Signal S controls the power-down feature. When S goes
high, power dissipation is reduced to 1/1 0 of active power.
The access time from S is equivalent to the address access
time.
BLOCK DIAGRAM
MEMORY AR RAY
-~ Vec(SV)
~ GND (Ov)
ADDRESS INPUTS
DATA OUTPUT
CHIP SELECT INPUT
WRITE CONTROL INPUT
I
~l------_~
• MITSUBISHI
;"ELECTRIC
3-9
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| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet M5M2167P-55.PDF ] | |
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