M41T256YMT7 STMicroelectronics, M41T256YMT7 Datasheet - Page 26
![Real Time Clock Serial 256K (32Kx8)](/photos/27/13/271312/soh28_sml.jpg)
M41T256YMT7
Manufacturer Part Number
M41T256YMT7
Description
Real Time Clock Serial 256K (32Kx8)
Manufacturer
STMicroelectronics
Datasheet
1.M41T256YMT7.pdf
(30 pages)
Specifications of M41T256YMT7
Function
Clock, Calendar
Rtc Memory Size
32768 B
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
- 25 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Serial
Package / Case
SO-44
Time Format
HH:MM:SS:hh
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
M41T256YMT7F
Manufacturer:
STMicroelectronics
Quantity:
135
6
Note:
26/30
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK
packages. These packages have a Lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
Figure 15. SOH44 – 44-lead plastic small outline, SNAPHAT, package outline
Drawing is not to scale.
Table 11.
Symb
CP
A1
A2
eB
C
D
H
N
A
B
E
e
L
a
SOH44 – 44-lead plastic small outline, SNAPHAT, package mech. data
B
0.81
Typ
SOH-A
N
1
e
D
17.71
11.51
0.05
2.34
0.36
0.15
8.23
3.20
0.41
mm
Min
44
0°
–
A2
E
H
CP
18.49
12.70
3.05
0.36
2.69
0.46
0.32
8.89
3.61
1.27
0.10
Max
8°
–
A
eB
0.032
Typ
A1
L
C
inches
0.002
0.092
0.014
0.006
0.697
0.324
0.126
0.453
0.016
Min
44
0°
–
0.120
0.014
0.106
0.018
0.012
0.728
0.350
0.142
0.500
0.050
0.004
Max
®
8°
–