pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 384

• Manufacturer Part Number: pc87591l
• Description: Lpc Mobile Embedded Controllers
• Manufacturer: National Semiconductor Corporation

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7.0 Device Specifications
7.6.2
Notes:
1. Either WATCHDOG, Debugger I/F or Power-Up reset.
2. Valid on Power-Up reset only.
Symbol
t
t
SUPUP
t
t
WRST
t
IRST
EPLv
IPLv
Reset Timing
Internal Straps
External Straps
V
Internal
Reset Event
CLK
Internal Reset
CC
(Pull-down)
Figure
(Pull-up)
130
130
130
130
130
RESET1-2
(Power)
CLK
Supply wake-up time to
95% V
Internal or power-on reset
time
Valid time: Internal strap
pull-up resistors
Valid time: External strap
pull-up resistors
RESET1-2 width
1
1
2
CC
Description
(Continued)
Figure 129. Internal Power-Up Reset
Figure 130. Warm Hardware Reset
V
0.95 V
CCONmin
t
After V
Power stable to end of 16
cycle of CLK
Before end of 16
CLK
Before end of 16
CLK
RESET1-2 FE to RESET1-2 RE
SUPUP
CC
Reference Conditions
CC
384
> V
t
WRST
CCON
th
th
clock cycle of
clock cycle of
t
IRST
t
IPLv
th
t
clock
EPLv
Strap Sampling
16
Time
16
6
3
t
*
Min
32KD
*
*
*
t
CLK
t
t
t
CLK
CLK
CLK
+
t
32KD
16
*
Max
+ t
1
t
CLK
32KW
+
Revision 1.07
Unit
ms
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-
-
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