Purchase M48T37V, In-stock M48T37V From SeekIC.
Part Number: M48T37V
Description: The M48T37Y/37V TIMEKEEPER[ RAM is a 32Kb x8 non-volatile static RAM and real time clock. The monolith...
- Table of contents:
M48T37V
-
Suppliers
DataSheet
General Description
M48T37V General Description
The M48T37Y/37V TIMEKEEPER[ RAM is a 32Kb x8 non-volatile static RAM and real time clock. The monolithic chip is available in a special package which provides a highly integrated battery backed-up memory and real time clock solution.
The 44 lead 330mil 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 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
The SOIC and battery packages are shipped separately in plastic anti-static tubes or in Tape &Reel form. For the 44 lead SOIC, the battery/crystal package (i.e. SNAPHAT) part number is "M4T28- BR12SH" or "M4T32-BR12SH".
Caution: Do not place the SNAPHAT battery/crystal top in conductive foam, as this will drain the lithium button-cell battery.
As Figure 3 shows, the static memory array and the quartz controlled clock oscillator of the M48T37Y/37V are integrated on one silicon chip.
M48T37V Maximum Ratings
|
Symbol |
Parameter |
Value |
Unit | |
|
TA |
Ambient Operating Temperature |
Grade 1 |
0 to 70 |
|
|
Grade 6 |
40 to 85 |
|||
|
TSTG |
Storage Temperature (VCC Off, Oscillator Off) |
SNAPHAT |
40 to 85 |
|
|
SOIC |
55 to 125 |
|||
|
TSLD(2) |
Lead Solder Temperature for 10 seconds |
260 |
||
|
VIO |
Input or Output Voltages |
M48T37Y |
0.3 to 7 |
V |
|
M48T37V |
0.3 to 4.6 |
V | ||
|
VCC |
Supply Voltage |
M48T37Y |
0.3 to 7 |
V |
|
M48T37V |
0.3 to 4.6 |
V | ||
|
IO |
Output Current |
10 |
mA | |
|
PD |
Power Dissipation |
1 |
W | |
Note: 1. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage
to the device. This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operational section of this specification is not
implied. Exposure to the absolute maximum rating conditions for extended periods of time may affect
reliability.
2. Soldering temperature not to exceed 260 for 10 seconds (total thermal budget not to exceed 150for
longer than 30 seconds).
CAUTION: Negative undershoots below 0.3V are not allowed on any pin while in the Battery Back-up mode.
CAUTION: Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets.
M48T37V Features
` INTEGRATED ULTRA-LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT and BATTERY
`FREQUENCY TEST OUTPUT for REAL TIME CLOCK SOFTWARE CALIBRATION
` YEAR 2000 COMPLIANT
` AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION
` WATCHDOG TIMER
` WRITE PROTECT VOLTAGE (VPFD = Power-Fail Deselect Voltage):
M48T37Y: 4.2VVPFD 4.5V
M48T37V: 2.7V VPFD 3.0V
` PACKAGING INCLUDES a 44-LEAD SOIC and SNAPHAT TOP (to be Ordered Separately)
` SOIC PACKAGE PROVIDES DIRECT
CONNECTION for a SNAPHAT[ TOP which
CONTAINS the BATTERY and CRYSTAL
` MICROPROCESSOR POWER-ON RESET (Valid even during battery back-up mode)
` PROGRAMMABLE ALARM OUTPUT ACTIVE in the BATTERY BACKED-UP
`BATTERY LOW FLAG
`FREQUENCY TEST OUTPUT for REAL TIME CLOCK SOFTWARE CALIBRATION
` YEAR 2000 COMPLIANT
` AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION
` WATCHDOG TIMER
` WRITE PROTECT VOLTAGE (VPFD = Power-Fail Deselect Voltage):
M48T37Y: 4.2VVPFD 4.5V
M48T37V: 2.7V VPFD 3.0V
` PACKAGING INCLUDES a 44-LEAD SOIC and SNAPHAT TOP (to be Ordered Separately)
` SOIC PACKAGE PROVIDES DIRECT
CONNECTION for a SNAPHAT[ TOP which
CONTAINS the BATTERY and CRYSTAL
` MICROPROCESSOR POWER-ON RESET (Valid even during battery back-up mode)
` PROGRAMMABLE ALARM OUTPUT ACTIVE in the BATTERY BACKED-UP
`BATTERY LOW FLAG
M48T37V Connection Diagram
M48T37V
PDF/DataSheet Download
- Datasheet: M48T37V
- File Size: 131902 KB
- Manufacturer: STMICROELECTRONICS [STMicroelectronics]
- Click here to Download
- ·M485L1624FT0
- SAMSUNG [Samsung semiconductor]
- DDR SDRAM SODIMM
- 270388 KB
- ·M485L1624FT0-CA2
- SAMSUNG [Samsung semiconductor]
- DDR SDRAM SODIMM
- 270388 KB
- ·M485L1624FT0-CB0
- SAMSUNG [Samsung semiconductor]
- DDR SDRAM SODIMM
- 270388 KB
- ·M485L1624FT0-CB3
- SAMSUNG [Samsung semiconductor]
- DDR SDRAM SODIMM
- 270388 KB
- ·M485L1624FU0-CA2
- SAMSUNG [Samsung semiconductor]
- DDR SDRAM SODIMM
- 270810 KB
- ·M485L1624FU0-CB0
- SAMSUNG [Samsung semiconductor]
- DDR SDRAM SODIMM
- 270810 KB
- ·M485L1624FU0-CB3
- SAMSUNG [Samsung semiconductor]
- DDR SDRAM SODIMM
- 270810 KB
- ·M48C260
- Atmel
- MARC4 – 4-bit Microcontroller
- 578088 KB
M48T37V Relative Products
M48T36
The M48T36 TIMEKEEPERETM RAM is a 32K x 8 non-volatile static RAM and real time clock. The monolithic chip is available in a special package to provide a highly integrated battery backed-up memory and real time clock solution. The M48T36 is a non-volatilepin...
M48T35Y-70PC1
The M48T35Y-70PC1 is designed as one kind of 32Kb x 8 non-volatile static RAM and real time clock device that is available in two special packages to provide a highly integrated battery backed-up memory and real time clock solution. This device is in the Rea...
M48T35Y-70MH1F
IC TIMEKPR NVRAM 256KB 5V 28SOIC
M48T35Y
The M48T35/Y TIMEKEEPER® RAM is a 32Kb x 8 non-volatile static RAM and real time clock. The monolithic chip of M48T35/Yis available in two special packages to provide a highly integrated battery backed-up memory and real time clock solution.The M48T35/Y ...
M48T35AY
The M48T35AY/35AV TIMEKEEPER® RAM is a 32Kb x8 non-volatile static RAM and real time clock. The monolithic chip is available in two special packages to provide a highly integrated battery backed-up memory and real time clock solution.The M48T35AY/35AV is...
-
M48T35AV-10MH1F
IC TIMEKPR NVRAM 256KB 3V 28SOIC
Hotspot Suppliers Product
0805-474
Price: 0.001-0.002 USD
0805-474, Samsung semiconductor, Capacitors
M63991FP
Price: 0.8-1.3 USD
600V, sop, high voltage, half bridge driver, ±500mA, VB–24 ~ VB+0.5V
TLP141G
Price: 0.4-1 USD
mini flat coupler, Trigger LED current 10mA, UL recognized, Toshiba Semiconductor, SOP5
ADC1173CIMTC
Price: 1.1-2 USD
low power, 8-Bit, 3-Volt, 15MSPS, 33mW A/D Converter(analog-to-digital converter), TSSOP-24
EP1K100QI208-1N
Price: 14.8-16.2 USD
QFP208, Programmable Logic Device, –0.5 to 3.6 V
TMS9995NL
Price: 50-55 USD
16-bit, central processing unit, DIP40, power dissipation 1W, supply voltage -0.3 to 7V
IRG4BC30FDPBF
Price: 1.35-1.55 USD
insulated gate bipolar transistor, TO-220, 600 V, 31 A, 100 W
SKM400GB12T4
Price: 120-130 USD
fast IGBT4 modules
MC908GP32CFBE
Price: 4-8 USD
Microcontrollers, QFP, High-performance, 8-MHz internal bus frequency, Clock generator module, -0....
RTC-72421B
Price: 3-4.5 USD
time clock module, DIP18, -0.3 to 7.0V
NF-G6150-N-A2
Price: 44.6-53.8 USD
BGA, North Bridge Chipset, NF-G6150-N-A2
IS61LV5128AL-10KLI
Price: 0.57-0.65 USD
SOJ-36, high-speed, low power, 524,288-word by 8-bit, CMOS static RAM, Lead-free available
