M48T37Y-70MH1E

Obsolete

STMicroelectronics

IC RTC CLK/CALENDAR PAR 44SOH

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M48T37Y-70MH1E

Obsolete

STMicroelectronics

IC RTC CLK/CALENDAR PAR 44SOH

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Description Specifications Series Pricing CAD Documents

Description

General part information

M48T37 Series

The M48T37Y/V TIMEKEEPER®RAM is a 32 Kb x 8 non-volatile static RAM and real-time clock. The monolithic chip is available in a special package which provides a highly integrated battery-backed memory and real-time clock solution.

The 44-lead, 330 mil SOIC package provides sockets with gold-plated contacts at both ends for direct connection to a separate SNAPHAT housing containing the battery and crystal. The unique design allows the SNAPHAT®battery/crystal package to be mounted on top of the SOIC package after the completion of the surface mount process.

Insertion of the SNAPHAT housing after reflow prevents potential battery and crystal damage due to the high temperatures required for device surface-mounting. The SNAPHAT housing is keyed to prevent reverse insertion.

Technical Specifications

Parameters and characteristics for this part

Specification	M48T37Y-70MH1E

Current - Timekeeping (Max)	3 mA
Date Format	YY-MM-DD-dd
Features	Watchdog Timer, Leap Year, Alarm
Interface	Parallel
Mounting Type	Surface Mount
Operating Temperature (Max)	70 °C
Operating Temperature (Min)	0 °C
Package Features	requires SNAPHAT
Package Length	0.337 in
Package Name	44-SOH, 44-BSOP
Package Width	8.56 mm
Time Format	HH:MM:SS (24 hr)
Type	Clock/Calendar
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	4.5 V

M48T37 Series

5.0 or 3.3 V, 256 Kbit (32 Kbit x 8) TIMEKEEPER® SRAM

Part	Current - Timekeeping (Max)	Time Format	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Package Features	Package Name	Package Length	Package Width	Mounting Type	Features	Date Format	Interface	Type	Operating Temperature (Min)	Operating Temperature (Max)
STMicroelectronics M48T37V-10MH6E	2 mA	HH:MM:SS (24 hr)	3.6 V	3 V	requires SNAPHAT	44-BSOP 44-SOH	0.337 in	8.56 mm	Surface Mount	Alarm Leap Year Watchdog Timer	YY-MM-DD-dd	Parallel	Clock/Calendar	-40 °C	85 °C
STMicroelectronics M48T37V-10MH1E	2 mA	HH:MM:SS (24 hr)	3.6 V	3 V	requires SNAPHAT	44-BSOP 44-SOH	0.337 in	8.56 mm	Surface Mount	Alarm Leap Year Watchdog Timer	YY-MM-DD-dd	Parallel	Clock/Calendar	0 °C	70 °C
STMicroelectronics M48T37Y-70MH1E	3 mA	HH:MM:SS (24 hr)	5.5 V	4.5 V	requires SNAPHAT	44-BSOP 44-SOH	0.337 in	8.56 mm	Surface Mount	Alarm Leap Year Watchdog Timer	YY-MM-DD-dd	Parallel	Clock/Calendar	0 °C	70 °C
STMicroelectronics M48T37Y-70MH6E	3 mA	HH:MM:SS (24 hr)	5.5 V	4.5 V	requires SNAPHAT	44-BSOP 44-SOH	0.337 in	8.56 mm	Surface Mount	Alarm Leap Year Watchdog Timer	YY-MM-DD-dd	Parallel	Clock/Calendar	-40 °C	85 °C
STMicroelectronics M48T37V-10MH1F	2 mA	HH:MM:SS (24 hr)	3.6 V	3 V	requires SNAPHAT	44-BSOP 44-SOH	0.337 in	8.56 mm	Surface Mount	Alarm Leap Year Watchdog Timer	YY-MM-DD-dd	Parallel	Clock/Calendar	0 °C	70 °C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

M48T37Y-70MH1E | Datasheet