Datasheet

MSP430F21x1
www.ti.com SLAS439F –SEPTEMBER 2004– REVISED AUGUST 2011
Flash Memory
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
V
CC (PGM/ERASE)
Program and erase supply voltage 2.2 3.6 V
f
FTG
Flash timing generator frequency 257 476 kHz
I
PGM
Supply current from V
CC
during program 2.2 V/3.6 V 3 5 mA
I
ERASE
Supply current from V
CC
during erase 2.2 V/3.6 V 3 7 mA
t
CPT
Cumulative program time
(1)
2.2 V/3.6 V 10 ms
t
CMErase
Cumulative mass erase time 2.2 V/3.6 V 20 ms
Program/erase endurance 10
4
10
5
cycles
t
Retention
Data retention duration T
J
= 25°C 100 years
t
Word
Word or byte program time See
(2)
30 t
FTG
t
Block, 0
Block program time for first byte or word See
(2)
25 t
FTG
Block program time for each additional
t
Block, 1-63
See
(2)
18 t
FTG
byte or word
t
Block, End
Block program end-sequence wait time See
(2)
6 t
FTG
t
Mass Erase
Mass erase time See
(2)
10593 t
FTG
t
Seg Erase
Segment erase time See
(2)
4819 t
FTG
(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) These values are hardwired into the flash controller's state machine (t
FTG
= 1/f
FTG
).
RAM
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN MAX UNIT
V
(RAMh)
RAM retention supply voltage
(1)
CPU halted 1.6 V
(1) This parameter defines the minimum supply voltage V
CC
when the data in RAM remains unchanged. No program execution should
happen during this supply voltage condition.
JTAG Interface
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER V
CC
MIN TYP MAX UNIT
2.2 V 0 5 MHz
f
TCK
TCK input frequency
(1)
3 V 0 10 MHz
R
Internal
Internal pulldown resistance on TEST 2.2 V/3 V 25 60 90 kΩ
(1) f
TCK
may be restricted to meet the timing requirements of the module selected.
JTAG Fuse
(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER T
A
MIN MAX UNIT
V
CC(FB)
Supply voltage during fuse-blow condition 25°C 2.5 V
V
FB
Voltage level on TEST for fuse blow 25°C 6 7 V
I
FB
Supply current into TEST during fuse blow 25°C 100 mA
t
FB
Time to blow fuse 25°C 1 ms
(1) Once the fuse is blown, no further access to the JTAG/Test and emulation features is possible, and the JTAG block is switched to
bypass mode.
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