參數(shù)資料
型號(hào)： SN74LS257
廠商： ON SEMICONDUCTOR
英文描述： LOW POWER SCHOTTKY
中文描述： 低功耗肖特基
文件頁(yè)數(shù)： 12/16頁(yè)
文件大?。?/td> 661K
代理商： SN74LS257
MECHANICAL DATA
MLCC006B – OCTOBER 1996
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FK (S-CQCC-N**)
LEADLESS CERAMIC CHIP CARRIER
4040140/D 10/96
28 TERMINAL SHOWN
B
0.358
(9,09)
MAX
(11,63)
0.560
(14,22)
0.560
(14,22)
0.458
0.858
(21,8)
1.063
(27,0)
A
NO. OF
TERMINALS
MIN
MAX
0.358
(9,09)
0.660
(16,76)
0.761
(19,32)
0.458
(11,63)
0.342
(8,69)
MIN
(11,23)
(16,26)
0.640
0.739
(18,78)
0.442
0.962
(24,43)
1.165
(29,59)
(23,83)
0.938
(28,99)
1.141
**
20
28
52
44
68
84
0.020 (0,51)
0.010 (0,25)
0.080 (2,03)
0.064 (1,63)
(7,80)
0.307
(10,31)
0.406
(12,58)
0.495
(12,58)
0.495
(21,6)
0.850
(26,6)
1.047
0.045 (1,14)
0.035 (0,89)
0.045 (1,14)
0.035 (0,89)
12
13
14
15
16
18
17
11
10
8
9
7
5
4
3
2
0.020 (0,51)
0.010 (0,25)
6
1
28
26
27
19
21
B SQ
A SQ
22
23
24
25
20
0.055 (1,40)
0.045 (1,14)
0.028 (0,71)
0.022 (0,54)
0.050 (1,27)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. This package can be hermetically sealed with a metal lid.
D. The terminals are gold plated.
E. Falls within JEDEC MS-004
相關(guān)PDF資料
PDF描述
SN74LS257B Low Noise, high linearity, 50 ohms matched balanced amplifier module operating in the 1.8 to 2.2GHz frequency range
SN74LS257BD LOW POWER SCHOTTKY
SN74LS257BN 6V Fixed Gain, General Purpose Amplifier
SN54LS257 QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
SN54LS257B QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
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SN74LS257AN 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:LOGIC MUX, QUAD, 2-INPUT, LS-TTL, 16 Pin, Plastic, DIP 制造商:Texas Instruments 功能描述:LOGIC MUX, QUAD, 2-INPUT, LS-TTL, 16 Pin, Plastic, DIP
SN74LS257AN89 制造商:Motorola 功能描述:74LS257N
SN74LS257AND 制造商:Motorola Inc 功能描述:LOGIC MUX, QUAD, 2-INPUT, LS-TTL, 16 Pin, Plastic, DIP
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