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PC87413 датащи(PDF) 239 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали PC87413
подробное описание детали  LPC ServerI/O for Servers and Workstations
PDF  257 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87413 датащи(HTML) 239 Page - National Semiconductor (TI)

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11.0 Device Characteristics (Continued)
Revision 1.2
239
www.national.com
11.5.2
Reset Timing
VSB Power-Up Reset
Figure 57. Internal VSB Power-Up Reset (No VBAT)
Symbol
Figure
Description
Reference Conditions
Min1
1. Not tested. Guaranteed by design.
Max1
tLRST
57
Minimum LRESET active
time
Power stable to end of
LRESET
2048 * t32KOSC
tIRST
57
Internal power-on reset time
Power stable to end of
internal reset
8192 * t32KOSC
2
2. Valid VBAT; the 32 KHz internal clock is running while VSB is Off (see Low Frequency Clock Timing on
page 242).
t32KW
3 +
8192 * t32KOSC
3. No VBAT; the 32 KHz internal clock is stopped while VSB is Off (see Low Frequency Clock Timing on
page 242).
tIPLV
57
Internal strap pull-down
resistors, valid time4
4. Active on VSB Power-Up reset only.
Before end of internal reset
512 * t32KOSC
tIRST
tEPLV
57
External strap pull-up
resistors, valid time
Before end of internal reset
512 * t32KOSC
tIRST
VSB (Power)
32 KHz Clock
(Internal)
tIRST
Internal Straps
tIPLV
VSBONmin
External Straps
tEPLV
t32KOSC
(Internal)
(Pull-Down)
(Pull-Up)
t32KW
LRESET
VSB Power-Up Reset
tLRST



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