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KM68257CLJ-12 Scheda tecnica(PDF) 2 Page - Samsung semiconductor

Il numero della parte KM68257CLJ-12
Spiegazioni elettronici  32Kx8 Bit High Speed Static RAM(5V Operating(, Evolutionary Pin out. Operated at Commercial Temperature Range.
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Produttore elettronici  SAMSUNG [Samsung semiconductor]
Homepage  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

KM68257CLJ-12 Scheda tecnica(HTML) 2 Page - Samsung semiconductor

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KM68257C/CL
CMOS SRAM
PRELIMINARY
Rev 3.0
- 2 -
February-1996
PIN FUNCTION
Pin Name
Pin Function
A0 - A14
Address Inputs
WE
Write Enable
CS
Chip Select
OE
Output Enable
I/O1 ~ I/O8
Data Inputs/Outputs
VCC
Power(+5.0V)
VSS
Ground
32K x 8 Bit High-Speed CMOS Static RAM
The KM68257C is a 262,144-bit high-speed Static Random
Access Memory organized as 32,768 words by 8 bits. The
KM68257C 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 KM68257C is packaged in
a 300 mil 28-pin plastic DIP, SOJ or TSOP1 forward.
GENERAL DESCRIPTION
FEATURES
¡Ü
Fast Access Time 12, 15, 20§À(Max.)
¡Ü
Low Power Dissipation
Standby (TTL)
: 40§Ì(Max.)
(CMOS) : 2§Ì(Max.)
0.1§Ì(Max.)- L-ver. only
Operating KM68257C/CL - 12 : 165§Ì(Max.)
KM68257C/CL - 15 : 150§Ì(Max.)
KM68257C/CL - 20 : 140§Ì(Max.)
¡Ü
Single 5.0V
±10% Power Supply
¡Ü
TTL Compatible Inputs and Outputs
¡Ü
I/O Compatible with 3.3V Device
¡Ü
Fully Static Operation
- No Clock or Refresh required
¡Ü
Three State Outputs
¡Ü
Low Data Retention Voltage : 2V(Min.)- L-ver. only
¡Ü
Standard Pin Configuration
KM68257C/CLP : 28-DIP-300
KM68257C/CLJ : 28-SOJ-300
KM68257C/CLTG : 28-TSOP1-0813, 4F
Clk Gen.
A3
I/O1 ~ I/O8
CS
WE
OE
PIN CONFIGURATION(Top View)
FUNCTIONAL BLOCK DIAGRAM
A4
A5
A6
A7
A8
A12
A13
A14
Data
Cont.
A0
A1
A2
A9
A10 A11
CLK
Gen.
Pre-Charge-Circuit
Memory Array
512 Rows
64x8 Columns
SOJ/DIP
TSOP1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
OE
A11
A9
A8
A13
WE
Vcc
A14
A12
A7
A6
A5
A4
A3
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
Vss
I/O3
I/O2
I/O1
A0
A1
A2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
Vss
Vcc
WE
A13
A8
A9
A11
OE
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
Column Select
I/O Circuit


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