Texas Instruments MSP430F677xIPEU & MSP430F677x1IPEU 128-Pin target board MSP-TS430PEU128 MSP-TS430PEU128 데이터 시트
제품 코드
MSP-TS430PEU128
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
ECCN 5E002 TSPA - Technology / Software Publicly Available
MSP430F677x
,
MSP430F676x
,
MSP430F674x
SLAS768D – SEPTEMBER 2012 – REVISED DECEMBER 2013
eUSCI (I2C Mode)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see
)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
Internal: SMCLK, ACLK
f
eUSCI
eUSCI input clock frequency
External: UCLK
f
SYSTEM
MHz
Duty cycle = 50% ± 10%
f
SCL
SCL clock frequency
2 V, 3 V
0
400
kHz
f
SCL
= 100 kHz
5.1
t
HD,STA
Hold time (repeated) START
2 V, 3 V
µs
f
SCL
> 100 kHz
1.5
f
SCL
= 100 kHz
5.1
t
SU,STA
Setup time for a repeated START
2 V, 3 V
µs
f
SCL
> 100 kHz
1.4
t
HD,DAT
Data hold time
2 V, 3 V
0.4
µs
f
SCL
= 100 kHz
5.0
t
SU,DAT
Data setup time
2 V, 3 V
µs
f
SCL
> 100 kHz
1.3
f
SCL
= 100 kHz
5.2
t
SU,STO
Setup time for STOP
2 V, 3 V
µs
f
SCL
> 100 kHz
1.7
UCGLITx = 0
75
220
ns
UCGLITx = 1
35
120
ns
Pulse duration of spikes suppressed by input
t
SP
2 V, 3 V
filter
UCGLITx = 2
30
60
ns
UCGLITx = 3
20
35
ns
UCCLTOx = 1
30
ms
t
TIMEOUT
Clock low timeout
UCCLTOx = 2
2 V, 3 V
33
ms
UCCLTOx = 3
37
ms
Figure 17. I2C Mode Timing
Schmitt-Trigger Inputs – RTC Tamper Detect Pin
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
AUXVCC3
MIN
TYP
MAX
UNIT
1.8 V
0.80
1.40
V
IT+
Positive-going input threshold voltage
V
3 V
1.50
2.10
1.8 V
0.45
1.00
V
IT–
Negative-going input threshold voltage
V
3 V
0.75
1.65
1.8 V
0.3
0.85
V
hys
Input voltage hysteresis (V
IT+
– V
IT–
)
V
3 V
0.4
1.0
For pullup: V
IN
= V
SS
R
Pull
Pullup or pulldown resistor
For pulldown: V
IN
=
20
35
50
k
Ω
AUXVCC3
C
I
Input capacitance
V
IN
= V
SS
or AUXVCC3
5
pF
Copyright © 2012–2013, Texas Instruments Incorporated
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