Datasheet
Table Of Contents
- features
- description
- Available Options
- pin designation
- functional block diagram
- Terminal Functions
- short-form description
- absolute maximum ratings
- recommended operating conditions
- electrical characteristics over recommended operating free-air temperature
- supply current into AVCC + DVCC excluding external
- current consumption of active mode versus system frequency
- current consumption of active mode versus supply voltage
- Schmitt-trigger inputs -- Ports P1 and P2, RST/NMI, JTAG (TCK, TMS, TDI/TCLK, TDO/TDI)
- inputs Px.x, TAx
- leakage current
- outputs -- Ports P1 and P2
- output frequency
- wake-up LPM3
- RAM
- LCD
- USART0
- POR brownout, reset
- SVS (supply voltage supervisor/monitor)
- DCO
- crystal oscillator, LFXT1 oscillator
- SD16, power supply and recommended operating conditions
- SD16, analog input range
- SD16, analog performance (fSD16 = 1MHz, SD16OSRx = 256, SD16REFON = 1)
- SD16, built-in voltage reference
- SD16, built-in reference output buffer
- SD16, external reference input
- flash memory
- JTAG interface
- JTAG fuse
- Application Information
- input/output schematic
- Port P1, P1.0 to P1.1, input/output with Schmitt trigger
- Port P1, P1.2 to P1.7, input/output with Schmitt trigger
- Port P2, P2.0 to P2.1, input/output with Schmitt trigger
- Port P2, P2.2 to P2.5, input/output with Schmitt trigger
- Port P2, unbonded GPIOs P2.6 and P2.7
- JTAG pins (TMS, TCK, TDI/TCLK, TDO/TDI), input/output with Schmitt trigger or output
- JTAG fuse check mode
- input/output schematic
- Data Sheet Revision History
MSP430F42xA
MIXED SIGNAL MICROCONTROLLER
SLAS587 -- FEBRUARY 2008
28
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
SD16, power supply and recommended operating conditions
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
AV
CC
Analog supply
voltage
AV
CC
=DV
CC
,AV
SS
=DV
SS
=0V 2.7 3.6 V
S
D
1
6
L
P
=
0
,
GAIN:1,2 3V 650 950
Analog supply
t
1
t
i
S
D
1
6
L
P
=
0
,
f
SD16
=1MHz,
GAIN:4,8,16 3V 730 1100
I
S
D
1
6
current: 1 active
S
D
1
6
c
h
a
n
n
e
l
f
S
D
1
6
1
M
H
z
,
SD16OSR = 256
GAIN: 32 3V 1050 1550
μ
A
I
SD16
S
D
1
6
c
h
anne
l
including internal
r
e
f
e
r
e
n
c
e
SD16LP = 1,
f
0
5
M
H
z
GAIN: 1 3V 620 930
μ
A
re
f
erence
f
SD16
=0.5MHz,
SD16OSR = 256
GAIN: 32 3V 700 1060
f
Analog front-end
i
n
p
u
t
c
l
o
c
k
SD16LP = 0 (Low power mode disabled) 3V 1
M
H
f
SD16
input clock
frequency
SD16LP = 1 (Low power mode enabled) 3V 0.5
MHz
SD16, analog input range (see Note 1)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
SD16GAINx = 1, SD16REFON = 1 ±500
Differential input
SD16GAINx = 2, SD16REFON = 1
±250
V
D
i
f
f
e
r
e
n
t
i
a
l
i
n
p
u
t
voltage range for
s
p
e
c
i
f
i
e
d
SD16GAINx = 4, SD16REFON = 1 ±125
m
V
V
ID
speci
f
ied
p
e
r
f
o
r
m
a
n
c
e
SD16GAINx = 8, SD16REFON = 1 ±62
m
V
p
e
r
f
o
r
m
a
n
c
e
(see Note 2)
SD16GAINx = 16, SD16REFON = 1
±31
(
s
e
e
N
o
t
e
2
)
SD16GAINx = 32, SD16REFON = 1 ±15
Z
Input impedance
(
o
n
e
i
n
p
u
t
p
i
n
t
o
f
SD16
= 1MHz, SD16GAINx = 1 3V 200
k
Ω
Z
I
(one input pin to
AV
SS
)
f
SD16
= 1MHz, SD16GAINx = 32 3V 75
kΩ
Z
Differential input
i
m
p
e
d
a
n
c
e
f
SD16
= 1MHz, SD16GAINx = 1 3V 300 400
k
Ω
Z
ID
impedance
(IN+ to IN--)
f
SD16
= 1MHz, SD16GAINx = 32 3V 100 150
kΩ
V
I
Absolute input
voltage range
AV
SS
-
1.0V
AV
CC
V
V
IC
Common-mode
input voltage range
AV
SS
-
1.0V
AV
CC
V
NOTES: 1. All parameters pertain to each SD16 channel.
2. The analog input range depends on the reference voltage applied to V
REF
.IfV
REF
is sourced externally, the full-scale range
is defined by V
FSR+
=+(V
REF
/2)/GAIN and V
FSR--
=--(V
REF
/2)/GAIN. The analog input range should not exceed 80% of
V
FSR+
or V
FSR--
.