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KM68257EI-10 数据表(PDF) 2 Page - Samsung semiconductor

部件名 KM68257EI-10
功能描述  32Kx8 Bit High-Speed CMOS Static RAM(5V Operating) Operated at Commercial and Industrial Temperature Ranges.
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制造商  SAMSUNG [Samsung semiconductor]
网页  http://www.samsung.com/Products/Semiconductor
标志 SAMSUNG - Samsung semiconductor

KM68257EI-10 数据表(HTML) 2 Page - Samsung semiconductor

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KM68257E, KM68257EI
CMOS SRAM
PRELIMINARY
Revision 0.0
- 2 -
August 1998
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 KM68257E is a 262,144-bit high-speed Static Random
Access Memory organized as 32,768 words by 8 bits. The
KM68257E 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 KM68257E is packaged in
a 300mil 28-pin plastic SOJ or TSOP1 forward.
GENERAL DESCRIPTION
FEATURES
• Fast Access Time 10, 12, 15ns(Max.)
• Low Power Dissipation
Standby (TTL)
: 20mA(Max.)
(CMOS) : 2mA(Max.)
Operating
KM68257E - 10 : 80mA(Max.)
KM68257E - 12 : 80mA(Max.)
KM68257E - 15 : 80mA(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
• Standard Pin Configuration
KM68257EJ
: 28-SOJ-300
KM68257ETG : 28-TSOP1-0813. 4F
Clk Gen.
A0
I/O1~I/O8
CS
WE
OE
PIN CONFIGURATION(Top View)
FUNCTIONAL BLOCK DIAGRAM
A1
A2
A3
A4
A5
A6
A7
A8
Data
Cont.
A9
A10
A11
A12
A13
A14
CLK
Gen.
Pre-Charge-Circuit
Memory Array
512 Rows
64x8 Columns
SOJ
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
KM68257E -10/12/15
Commercial Temp.
KM68257EI -10/12/15
Industrial Temp.
ORDERING INFORMATION


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