M41T60 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'M41T60' PDF : 27 Pages View PDF
M41T60
DC and AC parameters
Note:
Table 10. Oscillator characteristics
Symbol
Parameter
Conditions
Min
Typ
Max Unit
VSTA Oscillator start voltage
≤ 10 seconds 1.5
V
tSTA Oscillator start time
VCC = 3.0 V
1
s
Cg XIN capacitance
12
pF
Cd XOUT capacitance
IC-to-IC frequency variation (1)
12
pF
–10
+10 ppm
1. Reference value. TA = 25 °C, VCC = 3.0 V, CMJ-145 (CL = 6 pF, 32,768 Hz) manufactured by Citizen,
CL = Cg • Cd / (Cg + Cd)
Figure 15. Bus timing requirements sequence
SDA
tBUF
SCL
P
tHD:STA
tR
tF
tHIGH
S
tLOW
P = STOP and S = START
tSU:DAT
tHD:DAT
tHD:STA
tSU:STA
SR
tSU:STO
P
AI00589
Table 11. AC characteristics
Symbol
Parameter(1)
Min Max Unit
fSCL
tLOW
tHIGH
tR
tF
tHD:STA
tSU:STA
tSU:DAT
tHD:DAT(2)
tSU:STO
tBUF
SCL clock frequency
Clock low period
Clock high period
SDA and SCL rise time
SDA and SCL fall time
START condition hold time
(after this period the first clock pulse is generated)
START condition setup time
(only relevant for a repeated start condition)
Data setup time
Data hold time
STOP condition setup time
Time the bus must be free before a new transmission can
start
0
400 kHz
1.3
µs
600
ns
300 ns
300 ns
600
ns
600
ns
100
ns
0
µs
600
ns
1.3
µs
1. Valid for ambient operating temperature: TA = –40 to 85 °C; VCC = 1.3 to 4.4 V (except where noted).
2. Transmitter must internally provide a hold time to bridge the undefined region (300 ns max.) of the falling
edge of SCL.
Doc ID 10396 Rev 13
21/27
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