LM3S5D91 Datasheet, PDF (1262/1340 Pages) Texas Instruments – Stellaris® LM3S5D91 Microcontroller

Electrical Characteristics
25.8.5 System Clock Specification with ADC Operation
25.8.6
Table 25-13. System Clock Characteristics with ADC Operation
Parameter Parameter Name
Min
Nom
Max
Unit
F_sysadc
System clock frequency when the ADC
15.9952
module is operating (when PLL is bypassed).^a
16
16.0048
MHz
a. Clock frequency (plus jitter) must be stable inside specified range. ADC can be clocked from the PLL or directly from an
external clock source, as long as frequency absolute precision is inside specified range.
System Clock Specification with USB Operation
Table 25-14. System Clock Characteristics with USB Operation
Parameter
F_sysusb
Parameter Name
System clock frequency when the USB module is
operating (note that MOSC must be the clock source,
either with or without using the PLL)
Min
Nom
Max
30
-
-
Unit
MHz
25.9
25.10
Sleep Modes
Table 25-15. Sleep Modes AC Characteristics^a
Parameter
No
Parameter
Parameter Name
Min Nom Max
T_{WAKE_S}
Time to wake from interrupt in sleep mode, not -
using the PLL^b
-
2
D1
T_{WAKE_DS}
Time to wake from interrupt deep-sleep mode, -
not using the PLL^b
-
7
D2
T_{WAKE_PLL_S}
Time to wake from interrupt in sleep or
deep-sleep mode when using the PLL^b
-
-
T_READY
D3
T_{ENTER_DS} Time to enter deep-sleep mode from sleep
-
0
35^c
request
a. Values in this table assume the IOSC is the clock source during sleep or deep-sleep mode.
b. Specified from registering the interrupt to first instruction.
c. Nominal specification occurs 99.9995% of the time.
Unit
system clocks
system clocks
ms
ms
Flash Memory
Table 25-16. Flash Memory Characteristics
Parameter
Parameter Name
Min
Nom
Max
PE_CYC
Number of guaranteed program/erase cycles 15,000
before failure^a
-
-
T_RET
Data retention, -40˚C to +85˚C
10
T_PROG
Word program time
-
T_BPROG
Buffer program time
-
T_ERASE
Page erase time
-
T_ME
Mass erase time
-
a. A program/erase cycle is defined as switching the bits from 1-> 0 -> 1.
-
-
-
1
-
1
-
12
-
16
Unit
cycles
years
ms
ms
ms
ms
1262
Texas Instruments-Production Data
January 22, 2012