STEVAL-SCM001V1 STMicroelectronics, STEVAL-SCM001V1 Datasheet - Page 35

• Manufacturer Part Number: STEVAL-SCM001V1
• Description: KIT DEMO DONGLE RTC M41T62/ST7
• Manufacturer: STMicroelectronics

Specifications of STEVAL-SCM001V1

• Design Resources: STEVAL-SCM001V1 Gerber Files STEVAL-SCM001V1/RTC Schematic
• Main Purpose: Timing, ARM7 based RTC USB Dongle
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: M41T62, ST72F651
• Primary Attributes: RTC (Real-Time Clock) and Mass Storage Capabilities
• Secondary Attributes: Graphical User Interface, USB Interface
• Silicon Manufacturer: ST Micro
• Silicon Core Number: M41T62 And ST72651AR6
• Kit Application Type: Clock & Timing
• Application Sub Type: RTC Dongle
• Kit Contents: Board CD Docs
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5684

M41T62/63/64/65
Table 17.
1. Reference value. T
2. Devices in LCC8 package ((M41T62LC6F) are tested not to exceed ±20 ppm oscillator frequency error at
Figure 26. Bus timing requirements sequence
Table 18.
1. Valid for ambient operating temperature: T
2. Transmitter must internally provide a hold time to bridge the undefined region (300 ns max) of the falling
Symbol
SDA
SCL
t
SU:DAT
V
t
t
t
t
t
C
25 °C, which equates to about 52 seconds per month.
SU:STO
edge of SCL.
HD:STA
SU:STA
HD:DAT
STA
C
C
t
STA
Sym
t
f
t
HIGH
LOW
L
t
SCL
BUF
g
d
t
t
rec
R
F
= C
t BUF
(2)
g
Oscillator start voltage
Oscillator start time
XIN capacitance
XOUT capacitance
IC-to-IC frequency variation
• C
P
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
Watchdog output pulse width
d
Oscillator characteristics
AC characteristics
transmission can start
/ (C
g
+ C
A
Parameter
= 25 °C, V
S
d
).
t HD:STA
t R
CC
Doc ID 10397 Rev 15
= 3.0 V, CMJ-145 (C
Parameter
t LOW
t HIGH
(1)(2)
t F
A
= –40 to 85 °C; V
≤ 10 seconds
(1)
V
Conditions
CC
= 3.0 V
t HD:DAT
L
= 6 pF, 32,768 Hz) manufactured by Citizen,
t SU:DAT
CC
= 1.3 to 4.4 V (except where noted).
Min
–10
1.5
SR
Min
600
600
600
100
600
DC and AC parameters
t SU:STA
1.3
1.3
96
Typ
0
0
12
12
t HD:STA
Max
400
300
300
98
Max
+10
1
P
t SU:STO
Units
kHz
Unit
ppm
AI00589
ms
µs
ns
ns
ns
ns
ns
ns
µs
ns
µs
pF
pF
35/43
V
s