MSP430G2X52_1112 Datasheet, PDF (36/62 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2x52
MSP430G2x12
SLAS722E – DECEMBER 2010 – REVISED DECEMBER 2011
www.ti.com
RAM
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
V_(RAMh)
PARAMETER
RAM retention supply voltage ⁽¹⁾
TEST CONDITIONS
CPU halted
MIN MAX UNIT
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 and Spy-Bi-Wire Interface
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
f_SBW
t_SBW,Low
t_SBW,En
PARAMETER
Spy-Bi-Wire input frequency
Spy-Bi-Wire low clock pulse length
Spy-Bi-Wire enable time
(TEST high to acceptance of first clock edge⁽¹⁾)
TEST CONDITIONS
V_CC
2.2 V
2.2 V
2.2 V
MIN TYP
0
0.025
t_SBW,Ret
f_TCK
R_Internal
Spy-Bi-Wire return to normal operation time
TCK input frequency⁽²⁾
Internal pulldown resistance on TEST
2.2 V
2.2 V
2.2 V
15
0
25
60
MAX
20
15
UNIT
MHz
µs
1 µs
100 µs
5 MHz
90 kΩ
(1) Tools accessing the Spy-Bi-Wire interface need to wait for the maximum t_SBW,En time after pulling the TEST/SBWCLK pin high before
applying the first SBWCLK clock edge.
(2) 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
TEST CONDITIONS
MIN MAX UNIT
V_CC(FB)
V_FB
I_FB
t_FB
Supply voltage during fuse-blow condition
Voltage level on TEST for fuse blow
Supply current into TEST during fuse blow
Time to blow fuse
T_A = 25°C
2.5
V
6
7V
100 mA
1 ms
(1) Once the fuse is blown, no further access to the JTAG/Test, Spy-Bi-Wire, and emulation feature is possible, and JTAG is switched to
bypass mode.
36
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