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參數(shù)資料
| 型號： | M41T60Q6F |
| 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)： | 13/27頁 |
| 文件大?。?/td> | 534K |
| 代理商： | M41T60Q6F |
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DC and AC parameters
M41T60
Doc ID 10396 Rev 12
Table 8.
Crystal electrical characteristics
Symbol
Parameter (1)(2)
Min
Typ
Max
Unit
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
Table 9 below have
been evaluated by ST and have been found to be satisfactory for use with the M41T6x series RTCs.
2.
Load capacitors are integrated within the M41T60. 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 9.
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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