54ACTQ16646 16-Bit Transceiver/Register with TRI-STATE Outputs
September 1998
54ACTQ16646
16-Bit Transceiver/Register with TRI-STATE
廬
Outputs
General Description
The 鈥橝CTQ16646 contains sixteen non-inverting bidirec-
tional registered bus transceivers providing multiplexed
transmission of data directly from the input bus or from the
internal storage registers. Each byte has separate control in-
puts which can be shorted together for full 16-bit operation.
The DIR inputs determine the direction of data flow through
the device. The CPAB and CPBA inputs load data into the
registers on the LOW-to-HIGH transition. The 鈥橝CTQ16646
utilizes NSC Quiet Series technology to guarantee quiet out-
put switching and improved dynamic threshold performance.
FACT Quiet Series
廬
features GTO
廬
output control and un-
dershoot corrector for superior performance.
Features
n
Utilizes NSC FACT Quiet Series technology
n
Guaranteed simultaneous switching noise level and
dynamic threshold performance
n
Independent registers for A and B buses
n
Multiplexed real-time and stored data transfers
n
Separate control logic for each byte
n
16-bit version of the 鈥橝CTQ646
n
Outputs source/sink 24 mA
n
Standard Microcircuit Drawing (SMD) 5962-9581601
Logic Symbol
DS010937-1
GTO
鈩?/div>
is a trademark of National Semiconductor Corporation.
TRI-STATE
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is a registered trademark of National Semiconductor Corporation.
FACT
鈩?/div>
and FACT Quiet Series
鈩?/div>
are trademarks of Fairchild Semiconductor Corporation.
漏 1998 National Semiconductor Corporation
DS010937
www.national.com
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