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PC87306 Datasheet(PDF) 99 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87306
Description  PC87306 SuperI/OTM Enhanced Sidewinder Lite Floppy Disk Controller, Keyboard Controller, Real-Time Clock, Dual UARTs, Infrared Interface, IEEE 1284 Pa
PDF  110 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87306 Datasheet(HTML) 99 Page - National Semiconductor (TI)

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120 Electrical Characteristics (Continued)
TLC12379 – 77
Note 1
If SCR0 e 1 then tSINT e 3 RCLKs For a Timeout Interrupt tSINT e 8 RCLKs
FIGURE 12-9 Timeout Receiver Timing
1227 MODEM Control Timing
Symbol
Parameter
Conditions
Min
Max
Units
tMDO
Delay from WR (WR MCR) to Output
40
ns
tRIM
Delay to Reset IRQ from RD (RD MSR)
78
ns
tSIM
Delay to Set IRQ from MODEM Input
40
ns
TLC12379 – 78
Note 1
See Microprocessor Write cycle timing
Figure 12-3
Note 2
See Microprocessor Read cycle timing
Figure 12-2
FIGURE 12-10 MODEM Control Timing
99



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