MSP430X241X Datasheet, PDF (74/98 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x241x, MSP430x261x
MIXED SIGNAL MICROCONTROLLER
SLAS541A -- JUNE 2007 -- REVISED OCTOBER 2007
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
flash memory
PARAMETER
TEST
CONDITIONS
VCC
MIN TYP MAX UNIT
V_{CC(PGM/ERASE)}
f_FTG
I_PGM
I_ERASE
t_CPT
t_CMErase
t_Retention
Program and erase supply voltage
Flash Timing Generator frequency
Supply current from DV_CC during program
Supply current from DV_CC during erase
Cumulative program time
Cumulative mass erase time
Program/Erase endurance
Data retention duration
See Note 1
See Note 2
T_J = 25°C
2.2
257
2.2 V/ 3.6 V
2.2 V/ 3.6 V
2.2 V/ 3.6 V
2.2 V/ 3.6 V 200
10⁴
100
3.6 V
476 kHz
3
5 mA
3
7 mA
4 ms
ms
10⁵
cycles
years
t_Word
Word or byte program time
See Note 3
35
t_FTG
t_{Block, 0}
Block program time for first byte or word
See Note 3
30
t_FTG
t_{Block, 1-63}
Block program time for each additional byte or word See Note 3
21
t_FTG
t_{Block, End}
Block program end-sequence wait time
See Note 3
6
t_FTG
t_{Mass Erase}
Mass erase time (see Note 4)
See Note 3
10593
t_FTG
t_{Seg Erase}
Segment erase time
See Note 3
4819
t_FTG
NOTES:
1. The cumulative program time must not be exceeded when writing to a 64-byte flash block. This parameter applies to all programming
methods: individual word/byte write and block write modes.
2. The mass erase duration generated by the flash timing generator is at least 11.1 ms ( = 5297x1/f_FTG,max = 5297 × 1/476 kHz). To
achieve the required cumulative mass erase time, the Flash Controller’s mass erase operation can be repeated until this time is met.
A worst case minimum of 19 cycles is required.
3. These values are hardwired into the Flash Controller’s state machine (t_FTG = 1/f_FTG).
4. To erase the complete code area, the mass erase must be performed once with a dummy address in the range of the lower 64-kB
flash addresses and once with the dummy address in the upper 64-kB flash addresses.
RAM
PARAMETER
TEST CONDITIONS
MIN MAX UNIT
VRAMh See Note 1
CPU halted
1.6
V
NOTE 1: This parameter defines the minimum supply voltage when the data in program memory RAM remain unchanged. No program execution
should take place during this supply voltage condition.
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