DS1050
AC ELECTRICAL CHARACTERISTICS
(-40LC to +85LC; VCC = 2.7V to 5.5V)
PARAMETER
SCL Clock
SYMBOL CONDITION
MIN
0
TYP
MAX
400
UNITS NOTES
fSCL
Fast Mode
Standard Mode
Fast Mode
kHz
6
6
Frequency
0
1.3
4.7
100
Bus Free Time
Between STOP and
START Condition
Hold Time
tBUF
ꢀs
Standard Mode
tHD:STA
Fast Mode
0.6
4.0
7, 6
ꢀs
(Repeated) START
Condition
Standard Mode
Low Period of SCL
Clock
tLOW
tHIGH
tHD:DAT
tSU:DAT
tR
Fast Mode
Standard Mode
Fast Mode
1.3
4.7
6
6
ꢀs
ꢀs
ꢀs
ns
ns
High Period of SCL
Clock
0.6
Standard Mode
Fast Mode
4.0
Data Hold Time
0
0.9
6, 8, 9
6
Standard Mode
Fast Mode
0
Data Set-Up Time
100
250
20+0.1CB
Standard Mode
Fast Mode
Rise Time of Both
SDA and SCL
Signals
Fall Time of Both
SDA and SCL
Signals
Set-Up Time for
STOP Condition
Capacitive Load for
Each Bus Line
PWM Output
Change
300
10
Standard Mode
1000
tF
Fast Mode
20+0.1CB
300
300
ns
10
Standard Mode
tSU:STO
CB
Fast Mode
Standard Mode
Fast Mode
0.6
4.0
ꢀs
pF
400
10
11
Standard Mode
Fast Mode
2
periods
tPWMꢀ
Standard Mode
AC ELECTRICAL CHARACTERISTICS
(-40LC to +85LC; VCC = 2.7V to 5.5V)
PARAMETER
Output Frequency
Tolerance
SYMBOL CONDITION
MIN
TYP
MAX
UNITS NOTES
-20
+20
%
12
Output Impedance
Absolute Linearity
Relative Linearity
Resolution
200
+0.5
+0.25
ꢂ
LSB
-0.5
-0.25
14
15
13
LSB
5
Bits
ppm/ºC
Frequency
±200
Temperature
Coefficient
Frequency Voltage
Coefficient
1.5
% per
V
8 of 17
DALLAS [ DALLAS SEMICONDUCTOR ]
