Datasheet

SDA
SCL
t
HD,DAT
t
SU,DAT
t
HD,STA
t
HIGH
t
LOW
t
BUF
t
HD,STA
t
SU,STA
t
SP
t
SU,STO
MSP430F5638, MSP430F5637, MSP430F5636
MSP430F5635, MSP430F5634, MSP430F5633
MSP430F5632, MSP430F5631, MSP430F5630
www.ti.com SLAS650D –JUNE 2010–REVISED AUGUST 2013
USCI (I2C Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 16)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
Internal: SMCLK, ACLK
f
USCI
USCI input clock frequency External: UCLK f
SYSTEM
MHz
Duty cycle = 50% ± 10%
f
SCL
SCL clock frequency 2.2 V, 3 V 0 400 kHz
f
SCL
≤ 100 kHz 4.0
t
HD,STA
Hold time (repeated) START 2.2 V, 3 V µs
f
SCL
> 100 kHz 0.6
f
SCL
≤ 100 kHz 4.7
t
SU,STA
Setup time for a repeated START 2.2 V, 3 V µs
f
SCL
> 100 kHz 0.6
t
HD,DAT
Data hold time 2.2 V, 3 V 0 ns
t
SU,DAT
Data setup time 2.2 V, 3 V 250 ns
f
SCL
≤ 100 kHz 4.0
t
SU,STO
Setup time for STOP 2.2 V, 3 V µs
f
SCL
> 100 kHz 0.6
2.2 V 50 600
t
SP
Pulse width of spikes suppressed by input filter ns
3 V 50 600
Figure 16. I2C Mode Timing
12-Bit ADC, Power Supply and Input Range Conditions
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
(1)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
AVCC and DVCC are connected together,
AV
CC
Analog supply voltage AVSS and DVSS are connected together, 2.2 3.6 V
V(AVSS) = V(DVSS) = 0 V
V
(Ax)
Analog input voltage range
(2)
All ADC12 analog input pins Ax 0 AV
CC
V
2.2 V 150 200
Operating supply current into
I
ADC12_A
f
ADC12CLK
= 5 MHz
(4)
µA
AV
CC
terminal
(3)
3 V 150 250
Only one terminal Ax can be selected at one
C
I
Input capacitance 2.2 V 20 25 pF
time
R
I
Input MUX ON resistance 0 V ≤ VIN ≤ V(AVCC) 10 200 1900 Ω
(1) The leakage current is specified by the digital I/O input leakage.
(2) The analog input voltage range must be within the selected reference voltage range V
R+
to V
R–
for valid conversion results. If the
reference voltage is supplied by an external source or if the internal voltage is used and REFOUT = 1, then decoupling capacitors are
required. See REF, External Reference and REF, Built-In Reference.
(3) The internal reference supply current is not included in current consumption parameter I
ADC12
.
(4) ADC12ON = 1, REFON = 0, SHT0 = 0, SHT1 = 0, ADC12DIV = 0
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