欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數(shù)資料
型號(hào)： SN54AS646JT
廠商： TEXAS INSTRUMENTS INC
元件分類： 總線收發(fā)器
英文描述： AS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CDIP24
封裝： CERAMIC, DIP-24
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 658K
代理商： SN54AS646JT
5
6
7
8
9
10
11
25
24
23
22
21
20
19
43
2 1 28
12 13 14 15 16
OE
B1
B2
NC
B3
B4
B5
A1
A2
A3
NC
A4
A5
A6
DIR
SAB
CLKAB
B8
B7
A8
GND
NC
CLKBA
SBA
V
A7
B6
17 18
27 26
NC – No internal connection
CC
CLKAB
SAB
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
CLKBA
SBA
OE
B1
B2
B3
B4
B5
B6
B7
B8
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
SN54ALS646, SN54ALS648, SN54AS646 . . . JT PACKAGE
SN74ALS646A, SN74ALS648A, SN74AS646,
SN74AS648 . . . DW OR NT PACKAGE
(TOP VIEW)
SN54ALS646, SN54ALS648, SN54AS646 . . . FK PACKAGE
(TOP VIEW)
SN54ALS646, SN54ALS648, SN54AS646
SN74ALS646A, SN74ALS648A, SN74AS646, SN74AS648
OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SDAS039F – DECEMBER 1983 – REVISED JANUARY 1995
Copyright
1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Independent Registers for A and B Buses
Multiplexed Real-Time and Stored Data
Choice of True or Inverting Data Paths
Choice of 3-State or Open-Collector
Outputs
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic
(NT) and Ceramic (JT) 300-mil DIPs
DEVICE
OUTPUT
LOGIC
SN54ALS646, SN74ALS646A,
′AS646
3 state
True
SN54ALS648, SN74ALS648A, SN74AS648
3 state
Inverting
description
These devices consist of bus-transceiver circuits
with 3-state or open-collector outputs, D-type
flip-flops, and control circuitry arranged for
multiplexed transmission of data directly from the
data bus or from the internal storage registers.
Data on the A or B bus is clocked into the registers
on the low-to-high transition of the appropriate
clock
(CLKAB
or
CLKBA)
input. Figure 1
illustrates the four fundamental bus-management
functions that can be performed with the octal bus
transceivers and registers.
Output-enable (OE) and direction-control (DIR)
inputs control the transceiver functions. In the
transceiver mode, data present at the high-
impedance port may be stored in either or both
registers.
The select-control (SAB and SBA) inputs can
multiplex stored and real-time (transparent mode)
data. The circuitry used for select control eliminates the typical decoding glitch that occurs in a multiplexer during
the transition between stored and real-time data. DIR determines which bus receives data when OE is low. In
the isolation mode (OE high), A data may be stored in one register and /or B data may be stored in the other
register.
When an output function is disabled, the input function is still enabled and can be used to store and transmit
data. Only one of the two buses, A or B, may be driven at a time.
The -1 version of the SN74ALS646A is identical to the standard version, except that the recommended
maximum IOL in the -1 version is increased to 48 mA. There are no -1 versions of the SN54ALS646,
SN54ALS648, or SN74ALS648A.
The SN54ALS646, SN54ALS648, and SN54AS646 are characterized for operation over the full military
temperature range of – 55
°C to 125°C. The SN74ALS646A, SN74ALS648A, SN74AS646, and SN74AS648 are
characterized for operation from 0
°C to 70°C.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
相關(guān)PDF資料
PDF描述
SNJ54AS646JT AS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CDIP24
SNJ54ALS648FK ALS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, CQCC28
SNJ54AS646FK AS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28
SN74ALS646A-1DW ALS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
SN74ALS648ADWRE4 ALS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN54AS652JT 制造商:Texas Instruments 功能描述:Bus XCVR Single 8-CH 3-ST 24-Pin CDIP Tube
SN54AS74AJ 制造商:Texas Instruments 功能描述:Flip Flop D-Type Pos-Edge 2-Element 14-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:FLIP FLOP D-TYPE POS-EDGE 2-ELEM 14CDIP - Rail/Tube
SN54AS74FK 制造商:Texas Instruments 功能描述:
SN54AS756J 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Inverting 3-ST/Open Collector Bipolar 20-Pin CDIP Tube 制造商:Texas Instruments 功能描述:BFFR/LINE DRVR 8CH INV 3-ST/OPEN COLLECTOR BIPOLAR 20CDIP - Rail/Tube
SN54AS760J 制造商:Texas Instruments 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*
主站蜘蛛池模板： 衡水市| 扎鲁特旗| 翁牛特旗| 城固县| 洮南市| 安顺市| 晋州市| 绥芬河市| 新田县| 叙永县| 北碚区| 平远县| 石台县| 延长县| 恩平市| SHOW| 舒城县| 永仁县| 通州市| 安仁县| 新竹县| 利津县| 惠州市| 九龙城区| 宁安市| 云阳县| 永德县| 敦煌市| 家居| 靖州| 苗栗县| 眉山市| 娄底市| 淅川县| 信丰县| 元氏县| 莱芜市| 浑源县| 宁陕县| 陆河县| 太和县|