參數(shù)資料
型號: 74ACQ646SC
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Quiet Series⑩ Octal Transceiver/Register with 3-STATE Outputs
中文描述: AC SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封裝: 0.300 INCH, MS-013, SOIC-24
文件頁數(shù): 1/10頁
文件大小: 97K
代理商: 74ACQ646SC
2000 Fairchild Semiconductor Corporation
DS010635
www.fairchildsemi.com
January 1990
Revised September 2000
7
74ACQ646
74ACTQ646
Quiet Series
Octal Transceiver/Register
with 3-STATE Outputs
General Description
The ACQ/ACTQ646 consist of registered bus transceiver
circuits, with outputs, D-type flip-flops, and control circuitry
providing multiplexed transmission of data directly from the
input bus or from the internal storage registers. Data on the
A or B bus will be loaded into the respective registers on
the LOW-to-HIGH transition of the appropriate clock pin
(CPAB or CPBA). The four fundamental handling functions
available are illustrated in Figure 1, Figure 2, Figure 3 and
Figure 4.
The ACQ/ACTQ utilizes Fairchild Quiet Series
technol-
ogy to guarantee quiet output switching and improved
dynamic threshold performance. FACT Quiet Series
fea-
tures GTO
output control and undershoot corrector in
addition to a split ground bus for superior performance.
Features
I
Guaranteed simultaneous switching noise level and
dynamic threshold performance
I
Guaranteed pin-to-pin skew AC performance
I
Independent registers for A and B busses
I
Multiplexed real-time and stored data transfers
I
300 mil slim dual-in-line package
I
Outputs source/sink 24 mA
I
Faster prop delays than the standard AC/ACT646
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
FACT
, Quiet Series
, FACT Quiet Series
and GTO
are trademarks of Fairchild Semiconductor Corporation
Order Number
74ACQ646SC
74ACQ464ASPC
74ACTQ646SC
74ACTQ464ASPC
Package Number
M24B
N24C
M24B
N24C
Package Description
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Pin Names
A
0
A
7
Descriptions
Data Register A Inputs
Data Register A Outputs
Data Register B Inputs
Data Register B Outputs
Clock Pulse Inputs
Transmit/Receive Inputs
Output Enable Input
Direction Control Input
B
0
B
7
CPAB, CPBA
SAB, SBA
G
DIR
相關(guān)PDF資料
PDF描述
74ACQ646ASPC Single 8-bit Bus Transceiver
74ACQ646SCX CMOS, µP Compatible, 5µs/10µs, 8-Bit ADCs
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