MSP430F249-EP_14 Datasheet, PDF (62/82 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F249-EP
MIXED SIGNAL MICROCONTROLLER
2008
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
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.
JTAG interface
PARAMETER
TEST
CONDITIONS
VCC
f_TCK
TCK input frequency
See Note 1
2.2 V
3V
R_Internal
Internal pullup resistance on TMS, TCK, TDI/TCLK See Note 2
2.2 V/ 3 V
NOTES: 1. f_TCK may be restricted to meet the timing requirements of the module selected.
2. TMS, TDI/TCLK, and TCK pullup resistors are implemented in all versions.
MIN TYP MAX UNIT
0
5
MHz
0
10
25
60
90 kΩ
JTAG fuse (see Note 1)
PARAMETER
TEST CONDITIONS
MIN MAX UNIT
V_CC(FB) Supply voltage during fuse-blow condition
T_A = 25°C
2.5
V
V_FB
Voltage level on TDI/TCLK for fuse blow: F versions
6
7V
I_FB
Supply current into TDI/TCLK during fuse blow
100 mA
t_FB
Time to blow fuse
1 ms
NOTE 1: Once the fuse is blown, no further access to the MSP430 JTAG/Test and emulation features is possible. The JTAG block is switched
to bypass mode.
62
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265