MSP430xW42x
MIXED SIGNAL MICROCONTROLLER
SLAS383A 鈭?OCTOBER 2003 鈭?REVISED AUGUST 2004
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
Scan IF, port drive, port timing
PARAMETER
Voltage drop due to
excitation transistor鈥檚
on鈭抮esistance.
(see Figure 18)
Voltage drop due to
damping transistor鈥檚
on鈭抮esistance.
(see Figure 18)
TEST CONDITIONS
VCC
3V
MIN
TYP
MAX
UNIT
VOL(SIFCHx)
I(SIFCHx) = 2.0 mA, SIFTEN = 1
0.3
V
VOH(SIFCHx)
(see Note 1)
VOL(SIFCOM)
ISIFCHx(tri-state)
鈭唗
dSIFCH :
twEx(tsm)鈭抰wSIFCH
(see Note 2 and
Figure 18)
I(SIFCHx) = 鈭?00
碌A,
SIFTEN = 1
I(SIFCOM) = 3 mA, SIFSH = 1
V(SIFCHx) = 0 V to AVCC, port function
disabled, SIFSH = 1
3V
0.1
V
2.2 V/3 V
3V
0
鈭?0
0.1
50
V
nA
Change of pulse width
of internal signal
SIFEX(tsm) to pulse
width at pin SIFCHx
I(SIFCHx) = 3 mA,
tEx(SIFCHx) = 500 ns
卤20%
2.2 V/3 V
鈭?0
20
ns
NOTES: 1. SIFCOM=1.5V , supplied externally. (See Figure 19).
2. Not production tested.
tEx(SIFCHx)
SIFEX(tsm)
P6.x/SIFCH.x
tSIFCH(x)
Figure 18. P6.x/SIFCHx timing, SIFCHx function selected
SIFCOM
VOH(SIFCHx)
I(SIFCHx)
P6.x/SIFCH.x
VOL(SIFCHx)
Damping
Transistor
Excitation
Transistor
Figure 19. Voltage drop due to on-resistance
32
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
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