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KM641003B-10 データシート(PDF) 2 Page - Samsung semiconductor

部品番号 KM641003B-10
部品情報  256Kx4 Bit (with OE) High Speed Static RAM(5.0V Operating), Revolutionary Pin out
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メーカー  SAMSUNG [Samsung semiconductor]
ホームページ  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

KM641003B-10 データシート(HTML) 2 Page - Samsung semiconductor

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KM641003B
CMOS SRAM
PRELIMINARY
Rev 2.0
- 2 -
February 1998
PRELIMINARY
Preliminary
256K x 4 Bit (with OE)High-Speed CMOS Static RAM
GENERAL DESCRIPTION
FEATURES
• Fast Access Time 8,10,12ns(Max.)
• Low Power Dissipation
Standby (TTL)
: 50 mA(Max.)
(CMOS) : 10 mA(Max.)
Operating KM641003B - 8
: 150 mA(Max.)
KM641003B - 10 : 145 mA(Max.)
KM641003B - 12 : 140 mA(Max.)
• Single 5.0V
±10% Power Supply
• TTL Compatible Inputs and Outputs
• I/O Compatible with 3.3V Device
• Fully Static Operation
- No Clock or Refresh required
• Three State Outputs
• Center Power/Ground Pin Configuration
• Standard Pin Configuration
KM641003BJ : 32-SOJ-400
The KM641003B is a 1,048,576-bit high-speed Static Random
Access Memory organized as 262,144 words by 4 bits. The
KM641003B uses 4 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 KM641003B is packaged
in a 400 mil 32-pin plastic SOJ.
PIN FUNCTION
Pin Name
Pin Function
A0 - A17
Address Inputs
WE
Write Enable
CS
Chip Select
OE
Output Enable
I/O1 ~ I/O4
Data Inputs/Outputs
VCC
Power(+5.0V)
VSS
Ground
N.C
No Connection
PIN CONFIGURATION (Top View)
Clk Gen.
I/O1 ~ I/O4
CS
WE
OE
FUNCTIONAL BLOCK DIAGRAM
Data
Cont.
Column Select
CLK
Gen.
Pre-Charge Circuit
Memory Array
256 Rows
1024x4 Columns
I/O Circuit &
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
A17
A16
A15
A14
A13
OE
I/O4
Vss
Vcc
I/O3
A12
A11
A10
A9
A8
N.C.
N.C.
A0
A1
A2
A3
CS
I/O1
Vcc
Vss
I/O2
WE
A4
A5
A6
A7
N.C.
A10 A11 A12 A13 A14 A15
A0
A1
A2
A3
A4
A5
A6
A7
A8 A9
A16A17


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