Purchase M48T59, In-stock M48T59 From SeekIC.
Package Cooled:SOP D/C:N/A
Part Number: M48T59
Package Cooled: SOP
D/C: N/A
Description: The M48T59/59Y TIMEKEEPER® RAM is an 8Kb x8 non-volatile static RAM and real time clock...
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M48T59
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DataSheet
General Description
M48T59 General Description
The M48T59/59Y TIMEKEEPER® RAM is an 8Kb 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.
M48T59 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) |
40 to 85 |
||
| TSLD(2) | Lead Solder Temperature for 10 seconds |
260 |
||
| VIO | Input or Output Voltages |
0.3 to 7 |
V | |
| VCC | Supply Voltage |
0.3 to 7 |
V | |
| IO | Output Current |
20 |
mA | |
| PD | Power Dissipation |
1 |
W | |
Notes: 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°C for 10 seconds (total thermal budget not to excee 150°C for longer than 30 seconds).
CAUTION: Negative undershoots below 0.3 volts are not allowed on any pin while in the Battery Back-up mode.
CAUTION: Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets.
M48T59 Features
`INTEGRATED ULTRA LOW POWER SRAM,REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT and BATTERY
`FREQUENCY TEST OUTPUT for REAL TIME CLOCK
`AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION
`WRITE PROTECT VOLTAGES
(VPFD = Power-fail Deselect Voltage):
M48T59: 4.5V VPFD 4.75V
M48T59Y: 4.2VVPFD 4.5V
`SELF-CONTAINED BATTERY and CRYSTAL in the CAPHAT DIP PACKAGE
`PACKAGING INCLUDES a 28-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 BACK-UP MODE
`FREQUENCY TEST OUTPUT for REAL TIME CLOCK
`AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION
`WRITE PROTECT VOLTAGES
(VPFD = Power-fail Deselect Voltage):
M48T59: 4.5V VPFD 4.75V
M48T59Y: 4.2VVPFD 4.5V
`SELF-CONTAINED BATTERY and CRYSTAL in the CAPHAT DIP PACKAGE
`PACKAGING INCLUDES a 28-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 BACK-UP MODE
M48T59 Connection Diagram
M48T59
PDF/DataSheet Download
- Datasheet: M48T59
- File Size: 153857 KB
- Manufacturer: STMicro
- Click here to Download
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