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參數(shù)資料
| 型號(hào)： | KM68257EI |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 32K x 8 Bit High-Speed CMOS Static RAM(32K x8位高速CMOS 靜態(tài) RAM) |
| 中文描述： | 32K的× 8位高速CMOS靜態(tài)RAM（32K的x8位高速的CMOS靜態(tài)RAM）的 |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大小： | 128K |
| 代理商： | KM68257EI |
KM68257E, KM68257EI
CMOS SRAM
PRELIMINARY
Revision 0.0
August 1998
- 2 -
PIN FUNCTION
Pin Name
Pin Function
A
0
- A
14
Address Inputs
WE
Write Enable
CS
Chip Select
OE
Output Enable
I/O
1
~ I/O
8
Data Inputs/Outputs
V
CC
Power(+5.0V)
V
SS
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.
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
I/O
1
~I/O
8
CS
WE
OE
PIN CONFIGURATION
(Top View)
FUNCTIONAL BLOCK DIAGRAM
R
Data
Cont.
A
9
A
10
A
11
A
12
A
13
A
14
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
A
11
A
9
A
8
A
13
WE
Vcc
A
14
A
12
A
7
A
6
A
5
A
4
A
3
A
10
CS
I/O
8
I/O
7
I/O
6
I/O
5
I/O
4
Vss
I/O
3
I/O
2
I/O
1
A
0
A
1
A
2
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
A
14
A
12
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
I/O
1
I/O
2
I/O
3
Vss
Vcc
WE
A
13
A
8
A
9
A
11
OE
A
10
CS
I/O
8
I/O
7
I/O
6
I/O
5
I/O
4
Column Select
I/O Circuit
KM68257E -10/12/15
Commercial Temp.
KM68257EI -10/12/15
Industrial Temp.
ORDERING INFORMATION
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| KM684000LR-5 | RES 51K-OHM 1% 0.063W 200PPM THK-FILM SMD-0603 TR-7-PA |
| KM684000LR-5L | 512Kx8 BIT HIGH HIGH SPEED CMOS STATIC RAM |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KM68257EI-10 | 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:32Kx8 Bit High-Speed CMOS Static RAM(5V Operating) Operated at Commercial and Industrial Temperature Ranges. |
| KM68257EI-12 | 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:32Kx8 Bit High-Speed CMOS Static RAM(5V Operating) Operated at Commercial and Industrial Temperature Ranges. |
| KM68257EI-15 | 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:32Kx8 Bit High-Speed CMOS Static RAM(5V Operating) Operated at Commercial and Industrial Temperature Ranges. |
| KM682J | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:R. F. Molded Chokes |
| KM683J | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:R. F. Molded Chokes |
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