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M58725P-15 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Mitsubishi - 16K-Bit Static RAM

شماره قطعه M58725P-15
شرح مفصل 16K-Bit Static RAM
تولید کننده Mitsubishi 
آرم Mitsubishi 


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M58725P-15 شرح
MITSUBISHI LSI.
M58725P, -15
16 384-BIT (2048-WORD BY 8-BIT) STATIC RAM
DESCRIPTION
This is a family of 2048-word by 8-bit static RAMs, fabri-
cated with the N-channel silicon-gate MOS process and
designed for simple interfacing. These devices operate
on a single 5V supply, as does TIL, and are directly TIL-
compatible.
The input and output terminals are common, and an
OE terminal is provided. S controls the power-down fea-
ture.
FEATURES
• Fast access time:
M58725P
M58725 P-15
200ns (max)
150ns (max)
• Low power dissipation:
Active:
Stand by:
250mW (typ)
25mW (typ)
• Power down by S
.Single 5V supply voltage (±10% tolerance)
• Requires neither external clock nor refreshing
• All inputs and outputs are directly TIL compatible
-All outputs are three-state, with OR-tie capability
- Easy memory expansion by chip-select (5) input
-Common data DO terminals_
-Same pin configuration as M5L2716K 16 384-bit EPROM
APPLICATION
-Small-capacity memory units
FUNCTION
These devices provide common data input and output
terminals. During a write cycle, when a location is desig-
nated by address signals Ao-A IO the OE signal is kept high
to keep the DO terminals in the input mode, signal W goes
low, and the data of the DO signal at that time is written.
1 -BLOCK DIAGRAM
PIN CONFIGURATION (TOP VIEW)
ADDRESS
INPUTS
100, ++
DATA
INPUTS/ DO, +->
OUTPUTS
DO, ++
9
(OV) GND
Vee (5V)
__ A,
-- A,
__ IN
ADDRESS
} INPUTS
WRITE CON-
TROL INPUT
OUTPUT
ENABLE INPUT
ADDRESS
INPUT
CHIP SELECT
INPUT
17 ++ DO,)
++ DOl
DATA
++ DO, INPUTS/
OUTPUTS
++ DOs
++ DO.
Outline 24P4
During a read cycle, when a location is designated by
address signals Ao-A IO the DE signal is kept low to keep
the DO terminals in the output mode, signal W goes high,
and the data of the designated address is available at the
I/O terminals,
When signal 5 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 output terminals.
Signal 5 controls the power down feature. When 5
goes high power dissipation is reduced to 1/10 of active
power. The access time from 5 is equivalent to the address
access time.
OUTPUT
ENABLE INPUT
ADD RESS INPUTS
128 2048-WORDx8-BIT
(128 ROWSx
12B COLUMNS)
DATA
INPUTS/OUTPUTS
16
CHIP SELECT INPUT
WRITE CONI~~8f
IN 2')--------------------~
-.. MITSUBISHI
.... ELECTRIC
3-3

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