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UPD72042 Datasheet

  • UPD72042

  • LSI DEVICES FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CON...

  • 92頁(yè)

  • NEC   NEC

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DATA SHEET
MOS INTEGRATED CIRCUIT
碌
PD72042
LSI DEVICES FOR Inter Equipment Bus
TM
(IEBus
TM
)
PROTOCOL CONTROL
The
碌
PD72042 is a microcomputer peripheral LSI device for IEBus protocol control.
The
碌
PD72042 performs all the processing required for layers 1 and 2 of the IEBus. The devices incorporate large
transmission and reception buffers, allowing the microcomputer to perform IEBus operations without interruption.
They also contain an IEBus driver and receiver, allowing them to directly connected to the bus directly.
FEATURES
鈥?/div>
Control of layers 1 and 2 of the IEBus protocol
鈥?Support of a multi-master scheme
鈥?Broadcast function
鈥?Two communication modes having different
transmission speeds can be selected.
鈥?/div>
Microcomputer interface
Three-/two-wire serial I/O,
Transfer starting with MSB
鈥?/div>
Program crashes can be detected by means of a
watchdog timer.
鈥?/div>
Low power consumption (standby mode):
Transmission speed
Mode 0
Mode 1
q
q
50
碌
A (max)
鈥?/div>
Oscillator frequency (f ):
X
6 MHz
Approx. 3.9 Kbps
Approx. 17 Kbps
鈥?frequency accuracy:
鹵1.5%
5 V
鹵10%
鈥?/div>
Operating voltage:
Built-in IEBus driver and receiver
Transmission and reception buffers
Transmission buffer
Reception buffer
: 33 bytes, FIFO
: 40 bytes, FIFO (capable of
holding more than one frame
of reception data.)
ORDERING INFORMATION
Part number
Package
16-pin plastic SOP (9.53 mm (375))
碌
PD72042GT
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability
and additional information.
Document No. S14870EJ1V0DS00 (1st edition)
Date Published June 2000 N CP(N)
Printed in Japan
漏
2000

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