M48T37Y-70MH1E STMicroelectronics, M48T37Y-70MH1E Datasheet - Page 24

• Manufacturer Part Number: M48T37Y-70MH1E
• Description: IC TIMEKPR NVRAM 256KBIT5V 44SOH
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T37Y-70MH1E

• Memory Size: 256K (32K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-SOH
• Bus Type: Parallel
• User Ram: 32KB
• Operating Supply Voltage (typ): 5V
• Package Type: SOH
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 44
• Mounting: Surface Mount
• Memory Configuration: 32K X 8
• Nvram Features: RTC
• Interface Type: Parallel
• Access Time: 70ns
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: SOIC
• No. Of Pins: 44
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2854-5; M48T37Y-70MH1

Package mechanical data
6
Note:
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Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
Figure 14. SOH44 – 44-lead plastic small outline, 4-socket SNAPHAT
Drawing is not to scale.
Table 14.
Symbol
CP
A1
A2
eB
A
B
C
D
E
H
N
e
L
a
®
®
packages, depending on their level of environmental compliance. ECOPACK
is an ST trademark.
SOH44 – 44-lead plastic small outline, 4-socket SNAPHAT
mechanical data
B
0.81
Typ
N
1
e
D
17.71
11.51
0.05
2.34
0.36
0.15
8.23
3.20
0.41
Doc ID 7019 Rev 9
mm
Min
44
0°
A2
E
–
H
CP
18.49
12.70
Max
3.05
0.36
2.69
0.46
0.32
8.89
3.61
1.27
0.10
8°
–
A
eB
A1
0.032
Typ
L
C
inches
0.002
0.092
0.014
0.006
0.697
0.324
0.126
0.453
0.016
Min
M48T37Y, M48T37V
44
0°
–
®
®
, package
outline
0.120
0.014
0.106
0.018
0.012
0.728
0.350
0.142
0.500
0.050
0.004
Max
8°
–
SOH-A
®