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PC87303 Datasheet(PDF) 112 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87303
Description  PC87303VUL SuperI/OTM Sidewinder Lite Floppy Disk Controller, Keyboard Controller, Real-Time Clock, Dual UARTs, IEEE 1284 Parallel Port, and IDE Inter
PDF  114 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87303 Datasheet(HTML) 112 Page - National Semiconductor (TI)

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100 Electrical Characteristics (Continued)
10217 RTC
Symbol
Parameter
Conditions
Min
Max
Units
tRDI
IOR to IRQ TRI-STATE
36
ns
tRCI
MR to IRQ TRI-STATE
25
ns
tRCL
MR High Time
100
m
s
tVPG
VCC (45V) to PWRGOOD
0
ns
tPVG
PWRGOOD to VCC (45V)
0
ns
tVPG
VCC (45V) to PWRGOOD
10
ms
tVMR
VCC (45V) to MR
10
ms
tPGM
PWRGOOD to MR
0
ns
TLC12074 – 81
FIGURE 10-24 IRQ Release Delay
TLC12074 – 82
FIGURE 10-25 PWRGOOD VCC Timing
TLC12074 – 83
FIGURE 10-26 PWRGOOD MR Timing
112



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