STEVAL-SCM001V1 STMicroelectronics, STEVAL-SCM001V1 Datasheet - Page 34

• 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

DC and AC parameters
Table 15.
1. For the QFN16 package, user-supplied external crystals are required. The 6 and 7 pF crystals listed in
2. Load capacitors are integrated within the M41T6x. Circuit board layout considerations for the 32.768 kHz crystal of
3. Guaranteed by design.
4. R
Table 16.
1. Epson MC-146 32.7680KA-E: ROHS is 6 pF version.
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Citizen
Citizen
Ecliptek
Ecliptek
ECS
ECS
ECS
Epson
Fox
Fox
Fox
Fox
Micro
Crystal
Pletronics SM20S - 32.768K - 6pF
Seiko
Seiko
Vendor
Sym
R
have been evaluated by ST and have been found to be satisfactory for use with the M41T6x series RTC.
minimum trace lengths and isolation from RF generating signals should be taken into account.
C
f
O
S (max)
S
L
Resonant frequency
Series resistance (T
Load capacitance
= 65 kΩ for T
CMJ206T-32.768KDZB-UB
CM315-32.768KDZY-UB
E4WCDA06-32.768K
E5WSDC 07 - 32.768K
ECS-.327-6-17X-TR
ECS-.327-7-34B-TR
ECS-.327-7-38-TR
MC-146 32.7680KA-AG: ROHS
298LF-0.032768-19
299LF-0.032768-37
414LF-0.032768-12
501LF-0.032768-5
MS3V-T1R 32.768KHZ 7PF 20PPM
SSPT7F-7PF20PPM
VT200F-6PF20PPM
Crystal electrical characteristics
Crystals suitable for use with M41T6x series RTCs
Order number
A
= –40 to 85 °C and oscillator startup at 1.5 V.
A
= –40 to 70 °C, oscillator startup at 2.0 V)
Parameter
(1)
(1)(2)
Doc ID 10397 Rev 15
3.2 x 1.5 x 0.9 mm SMT 70 kΩ
3.8 x 8.5 x 2.5 mm SMT 50 kΩ
3.2 x 1.5 x 0.9 mm SMT 70 kΩ
3.8 x 8.5 x 2.5 mm SMT 50 kΩ
3.8 x 8.5 x 2.5 mm SMT 50 kΩ
2.0 x 6.0 mm thru-hole
1.5 x 5.0 mm thru-hole
2.0 x 6.0 mm thru-hole
2.0 x 6.0 mm thru-hole
7 x 1.5 x 1.4 mm SMT
7 x 1.5 x 1.4 mm SMT
7 x 1.5 x 1.4 mm SMT
7 x 1.5 x 1.4 mm SMT
7 x 1.5 x 1.4 mm SMT
8.3 x 2.5 mm
6.7 x 1.4 mm
leaded SMT
leaded SMT
Package
50 kΩ
50 kΩ
65 kΩ
65 kΩ
65 kΩ
50 kΩ
50 kΩ
65 kΩ
65 kΩ
65 kΩ
50 kΩ
ESR
max
Min
-
-
-
Manufacturer’s specifications
range (°C)
–40/+85
–40/+85
–10/+60
–40/+85
–10/+60
–40/+85
–40/+85
–40/+85
–20/+60
–20/+60
–40/+85
–40/+85
–40/+85
–40/+85
–40/+85
–10/+60
Temp.
32.768
Typ
6
Table 16
M41T62/63/64/65
tolerance
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
±20 ppm
75
at 25 °C
Rated
Max
(3)(4)
below
Units
Rated
kHz
load
cap.
6 pF
7 pF
6 pF
7 pF
6 pF
7 pF
7 pF
7 pF
6 pF
6 pF
6 pF
7 pF
7 pF
6 pF
7 pF
6 pF
kΩ
pF