pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 385

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

Revision 1.07
7.0 Device Specifications
7.6.3
t
t
t
Symbol
32KCLKIN
CLKINTwk
t
t
CLKINTst
FLPMAX
CLKstab
f
t
t
t
t
t
t
t
CLKw
32KW
FMAX
t
CLKh
32KD
CLKl
CLKr
CLKf
1. t
CLK
CLKINTnom
Clock Timing
Figure
131
132
132
132
132
132
133
133
133
133
131
132
is defined in Table 36 on page 241.
Required clock period for
32KCLKIN
CLK period
CLK high time
CLK low time
CLK rise time
CLK fall time
CLK wake-up time
t
t
t
32K oscillator wake-up time After V
CLK delay time
Flash Section 0 and 1
maximal operation frequency
in Fast Read
Flash Section 0 and 1
maximal operation frequency
in Low Power
CLK
CLK
CLK
period
period
stabilization time
Description
(Continued)
Flash Operation Frequency
Clock Output Timing
Clock Input Timing
From RE to RE of 32KCLKIN
At 2.0V (both edges)
At 2.0V (both edges)
At 0.8V (both edges)
0.8V to 2.0V
2.0V to 0.8V
From wake-up event until
CLK starts toggling
Active mode in steady state
After wake-up from Idle
After wake-up from Idle
After V
CLK period
CLK period
t
32NOM
385
Reference Conditions
BAT
CC
= 30.517578
> V
> V
CCON
LOWBAT
0.5
0.5
t
(t
t
CLKINTnom
100ppm)
30.5145
CLKINTnom
32NOM
0.99
0.9
5 ns
5 ns
*
*
Min
50
t
t
CLK
CLK
*
*
1
(t
t
t
100ppm)
30.5206
CLKINTnom
CLKINTnom
32NOM
1.01
1.1
TBD
Max
250
100
0.5
40
20
6
6
1
*
*
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MHz
MHz
Unit
ms
ns
ns
ns
s
s
-
-
-
-
s
s