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KM681001B-20 датащи(PDF) 2 Page - Samsung semiconductor

номер детали KM681001B-20
подробное описание детали  128K x 8 Bit High-Speed CMOS Static RAM
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производитель  SAMSUNG [Samsung semiconductor]
домашняя страница  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

KM681001B-20 датащи(HTML) 2 Page - Samsung semiconductor

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KM681001B
CMOS SRAM
PRELIMINARY
Rev 2.0
- 2 -
February 1998
128K x 8 Bit High-Speed CMOS Static RAM
GENERAL DESCRIPTION
FEATURES
• Fast Access Time 15, 20ns(Max.)
• Low Power Dissipation
Standby (TTL)
: 20mA(Max.)
(CMOS) : 5mA(Max.)
Operating KM681001B - 15 : 125mA(Max.)
KM681001B - 20 : 123mA(Max.)
• Single 5.0V
±10% Power Supply
• TTL Compatible Inputs and Outputs
• Fully Static Operation
- No Clock or Refresh required
• Three State Outputs
• Standard Pin Configuration
KM681001BJ : 32-SOJ-400
KM681001BSJ : 32-SOJ-300
Clk Gen.
I/O1 ~ I/O8
CS1
WE
OE
FUNCTIONAL BLOCK DIAGRAM
Data
Cont.
Column Select
CLK
Gen.
Pre-Charge Circuit
Memory Array
512 Rows
256x8 Columns
I/O Circuit
PIN FUNCTION
Pin Name
Pin Function
A0 - A16
Address Inputs
WE
Write Enable
CS1, CS2
Chip Selects
OE
Output Enable
I/O1 ~ I/O8
Data Inputs/Outputs
VCC
Power(+5.0V)
VSS
Ground
N.C
No Connection
The KM681001B is a 1,048,576-bit high-speed Static Random
Access Memory organized as 131,072 words by 8 bits. The
KM681001B uses 8 common input and output lines and has an
output enable pin which operates faster than address access
time at read cycle. The device is fabricated using Samsung
′s
advanced CMOS process and designed for high-speed circuit
technology. It is particularly well suited for use in high-density
high-speed system applications. The KM681001B is packaged
in a 400/300 mil 32-pin plastic SOJ.
PIN CONFIGURATION(Top View)
SOJ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
Vcc
A16
CS2
WE
A15
A14
A13
A12
OE
A11
CS1
I/O8
I/O7
I/O6
I/O5
I/O4
N.C
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
I/O1
I/O2
I/O3
Vss
CS2
A9 A10 A11 A12 A13 A14 A15 A16
A0
A1
A2
A3
A4
A5
A6
A7
A8


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