UPD72042 Datasheet, PDF (88/92 Pages) NEC – LSI DEVICES FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL

µPD72042
APPENDIX A MAIN DIFFERENCES BETWEEN µPD72042, µPD72042B, AND µPD6708
Product
Item
µPD72042A
µPD72042B
µPD6708
Oscillation frequency (fX)
6 MHz
12 MHz
Operating voltage (VDD)
5 V ±10%
Operating ambient temperature (TA)
–40 to +85°C
IEBus Communication mode
Mode 0, 1
Mode 0, 1, 2
Driver/receiver
Built-in
Protective register
Not reguired
180 Ω ±5%
Not reguired
Transmission buffer
33 bytes
4 bytes
Reception buffer
Interface with microcomputer^Note
Package
40 bytes
Serial interface (3-wire/2-wire)
MSB first
LSB first
16-pin plastic SOP (9.53 mm (375))
20 bytes
Serial interface (3-wire)
MSB first
16-pin plastic SOP
(7.62 mm (300))
16-pin plastic DIP
(7.62 mm (300))
Note The setting method for the commands, data, and related pins for the µPD72042 and µPD72042B differs
from that for the µPD6708.
APPENDIX B IEBus PROTOCOL ANALYZER
Naito Densei Co., Ltd. offers an IEBus protocol analyzer for monitoring communication on IEBus and evaluating
application systems. For details of its functions and to place an order, contact:
Naito Densei Machida Mfg. Co., Ltd.
3-9-25, Hisamoto, Takatsu-ku
Kawasaki, Kanagawa 213-0011, JAPAN
TEL [phone]
FAX [phone]
88
Data Sheet S14870EJ1V0DS00