參數(shù)資料
型號： M41T63Q6F
廠商： STMICROELECTRONICS
元件分類： 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述： 1 TIMER(S), REAL TIME CLOCK, QCC16
封裝： 3 X 3 MM, LEAD FREE, QFN-16
文件頁數(shù)： 27/40頁
文件大小： 707K
代理商： M41T63Q6F
M41T62/63/64/65
DC and AC parameters
Doc ID 10397 Rev 12
Table 15.
Crystal electrical characteristics
Sym
Parameter(1)(2)
Min
Typ
Max
Units
fO
Resonant frequency
-
32.768
kHz
RS
Series resistance (TA = –40 to 70 °C, oscillator startup at 2.0 V)
-
75(3)(4)
k
Ω
CL
Load capacitance
-
6
pF
1.
For the QFN16 package, user-supplied external crystals are required. The 6 and 7 pF crystals listed in
have been evaluated by ST and have been found to be satisfactory for use with the M41T6x series RTC.
2.
Load capacitors are integrated within the M41T6x. Circuit board layout considerations for the 32.768 kHz crystal of
minimum trace lengths and isolation from RF generating signals should be taken into account.
3.
Guaranteed by design.
4.
RS (max) = 65 kΩ for TA = –40 to 85 °C and oscillator startup at 1.5 V.
Table 16.
Crystals suitable for use with M41T6x series RTCs
Vendor
Order number
Package
Manufacturer’s specifications
ESR
max
Temp.
range (°C)
Rated
tolerance
at 25 °C
Rated
load
cap.
Citizen
CMJ206T-32.768KDZB-UB
8.3 x 2.5 mm
leaded SMT
50 k
Ω
–40/+85
±20 ppm
6 pF
Citizen
CM315-32.768KDZY-UB
3.2 x 1.5 x 0.9 mm SMT
70 k
Ω
–40/+85
±20 ppm
7 pF
Ecliptek
E4WCDA06-32.768K
2.0 x 6.0 mm thru-hole
50 k
Ω
–10/+60
±20 ppm
6 pF
Ecliptek
E5WSDC 07 - 32.768K
7 x 1.5 x 1.4 mm SMT
65 k
Ω
–40/+85
±20 ppm
7 pF
ECS
ECS-.327-6-17X-TR
3.8 x 8.5 x 2.5 mm SMT
50 k
Ω
–10/+60
±20 ppm
6 pF
ECS
ECS-.327-7-34B-TR
3.2 x 1.5 x 0.9 mm SMT
70 k
Ω
–40/+85
±20 ppm
7 pF
ECS
ECS-.327-7-38-TR
7 x 1.5 x 1.4 mm SMT
65 k
Ω
–40/+85
±20 ppm
7 pF
Epson
MC-146 32.7680KA-AG: ROHS(1)
7 x 1.5 x 1.4 mm SMT
65 k
Ω
–40/+85
±20 ppm
7 pF
Fox
298LF-0.032768-19
1.5 x 5.0 mm thru-hole
50 k
Ω
–20/+60
±20 ppm
6 pF
Fox
299LF-0.032768-37
2.0 x 6.0 mm thru-hole
50 k
Ω
–20/+60
±20 ppm
6 pF
Fox
414LF-0.032768-12
3.8 x 8.5 x 2.5 mm SMT
50 k
Ω
–40/+85
±20 ppm
6 pF
Fox
501LF-0.032768-5
7 x 1.5 x 1.4 mm SMT
65 k
Ω
–40/+85
±20 ppm
7 pF
Micro
Crystal
MS3V-T1R 32.768KHZ 7PF 20PPM
6.7 x 1.4 mm
leaded SMT
65 k
Ω
–40/+85
±20 ppm
7 pF
Pletronics SM20S - 32.768K - 6pF
3.8 x 8.5 x 2.5 mm SMT
50 k
Ω
–40/+85
±20 ppm
6 pF
Seiko
SSPT7F-7PF20PPM
7 x 1.5 x 1.4 mm SMT
65 k
Ω
–40/+85
±20 ppm
7 pF
Seiko
SPT2AF-6PF20PPM
3.8 x 8.5 x 2.5 mm SMT
50 k
Ω
–40/+85
±20 ppm
6 pF
Seiko
VT200F-6PF20PPM
2.0 x 6.0 mm thru-hole
50 k
Ω
–10/+60
±20 ppm
6 pF
1.
Epson MC-146 32.7680KA-E: ROHS is 6 pF version.
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