MC74AC652_15 Datasheet, PDF (1/10 Pages) ON Semiconductor – Octal Transceiver/Register with 3-State Outputs

MC74AC652, MC74ACT652
Octal Transceiver/Register
with 3-State Outputs
(Non-Inverting)
The MC74AC/ACT652 consists 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 (CAB or CBA). The four fundamental
data handling functions available are illustrated in Figures 1 to 4.
Features
• Independent Registers for A and B Buses
• Multiplexed Real−Time and Stored Data Transfers
• Choice of True and Inverting Data Paths
• 3−State Outputs
• 300 mil Slim Dual−in−Line Package
• Outputs Source/Sink 24 mA
• ′ACT652 Has TTL Compatible Inputs
• These are Pb−Free Devices
REAL TIME TRANSFER
A‐BUS TO B‐BUS
A‐BUS
REG
REG
B‐BUS
Figure 1.
STORAGE
FROM BUS TO REGISTER
A‐BUS
REG
REG
B‐BUS
Figure 3.
REAL TIME TRANSFER
B‐BUS TO A‐BUS
A‐BUS
REG
REG
B‐BUS
Figure 2.
TRANSFER
FROM REGISTER TO BUS
A‐BUS
REG
REG
B‐BUS
Figure 4.
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MARKING DIAGRAMS
24
1
SO−24
DW SUFFIX
CASE 751E
AC652
AWLYYWWG
ACT652
AWLYYWWG
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
March, 2015 − Rev. 7
Publication Order Number:
MC74AC652/D