M41T65Q6F STMicroelectronics, M41T65Q6F Datasheet - Page 34

• Manufacturer Part Number: M41T65Q6F
• Description: IC RTC SERIAL W/ALARM 16QFN
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T65Q6F

• Memory Size: 16B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.3 V ~ 4.4 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• Function: Clock/Calendar/Alarm/Timer Interrupt
• Rtc Memory Size: 16 Byte
• Supply Voltage (max): 4.4 V
• Supply Voltage (min): 1.3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (2-Wire, I2C)
• Supply Current: 50 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3908-2

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