m41t60 STMicroelectronics, m41t60 Datasheet - Page 18

• Manufacturer Part Number: m41t60
• Description: Serial Access Real-time Clock
• Manufacturer: STMicroelectronics

DC and AC parameters
Note:
18/24
Table 9. Oscillator characteristics
1. Reference value. T
Figure 15. Bus timing requirements sequence
P = STOP and S = START
Table 10. AC characteristics
1. Valid for Ambient Operating Temperature: T
2. Transmitter must internally provide a hold time to bridge the undefined region (300ns max.) of the falling
t
Symbol
Symbol
HD:DAT
t
t
t
t
SU:STO
HD:STA
SU:STA
SU:DAT
t
V
t
t
f
t
HIGH
edge of SCL.
LOW
STA
C
C
SCL
BUF
STA
t
t
R
F
g
d
(2)
SDA
SCL
Oscillator Start Voltage
Oscillator Start Time
XIN
XOUT
IC-to-IC Frequency Variation
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
tBUF
A
P
Parameter
= 25°C, V
S
CC
Parameter
= 3.0V, CMJ-145 (C
tHD:STA
tR
(1)
tLOW
tHIGH
(1)
A
tF
= –40 to 85°C; V
≤ 10 seconds
Conditions
V
CC
= 3.0V
L
= 6pF, 32,768Hz) manufactured by Citizen.
tHD:DAT
tSU:DAT
CC
= 1.3 to 4.4V (except where noted).
Min
–10
1.5
Min
600
100
600
600
600
1.3
1.3
0
0
SR
tSU:STA
Typ
12
12
tHD:STA
Typ
Max
+10
P
AI00589
Max
400
300
300
1
tSU:STO
M41T60
Unit
ppm
Unit
kHz
pF
pF
µs
ns
ns
ns
ns
ns
ns
µs
ns
µs
V
s