M4T28-BR12SH1TR STMICROELECTRONICS [STMicroelectronics], M4T28-BR12SH1TR Datasheet

no-image

M4T28-BR12SH1TR

Manufacturer Part Number
M4T28-BR12SH1TR
Description
TIMEKEEPER SNAPHAT (BATTERY & CRYSTAL)
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
FEATURES SUMMARY
March 2003
Rev. 2.5
PROVIDES BATTERY BACKUP POWER FOR
NON-VOLATILE TIMEKEEPER
SUPERVISOR DEVICES IN THE 28- OR 44-
PIN SNAPHAT SOIC PACKAGE
REMOVABLE BATTERY AVOIDS HEAT
ASSOCIATED WITH SURFACE MOUNT
PROCESS
SNAPS DIRECTLY ONTO SURFACE-
MOUNTED SNAPHAT SOIC
CHOICE OF BATTERY CAPACITIES:
– M4T28-BR12SH = 48mAh
– M4T32-BR12SH = 120mAh
KEYED INSERTION TO INSURE PROPER
ASSEMBLY
REMOVABLE FOR REPLACEMENT and
PROPER DISPOSAL
Pb-FREE PACKAGE
AVAILABLE IN TUBES OR TAPE & REEL
TIMEKEEPER
®
and
®
SNAPHAT
Figure 1. SNAPHAT Top Package
®
(BATTERY & CRYSTAL)
M4T28-BR12SH
M4T32-BR12SH
SNAPHAT (SH)
Battery/Crystal
1/12

Related parts for M4T28-BR12SH1TR

M4T28-BR12SH1TR Summary of contents

Page 1

... PIN SNAPHAT SOIC PACKAGE REMOVABLE BATTERY AVOIDS HEAT ASSOCIATED WITH SURFACE MOUNT PROCESS SNAPS DIRECTLY ONTO SURFACE- MOUNTED SNAPHAT SOIC CHOICE OF BATTERY CAPACITIES: – M4T28-BR12SH = 48mAh – M4T32-BR12SH = 120mAh KEYED INSERTION TO INSURE PROPER ASSEMBLY REMOVABLE FOR REPLACEMENT and PROPER DISPOSAL Pb-FREE PACKAGE AVAILABLE IN TUBES OR TAPE & ...

Page 2

... M4T28-BR12SH, M4T32-BR12SH TABLE OF CONTENTS SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Logic Diagram (Figure 2 Signal Names (Table 1 MAXIMUM RATING Absolute Maximum Ratings (Table 2 AND AC PARAMETERS Operating and AC Measurement Conditions (Table 3 MECHANICAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SNAPHAT Insertion/Extraction Forces (Figure 3 Battery Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 UL Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Battery Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 General Notes ...

Page 3

... SOIC is surface mounted on the PC board. Thus the two piece solution prevents the battery and crystal from being exposed to the high tem- peratures of the surface mount process. Table 1. Signal Names BAT– V BAT+ AI02528 M4T28-BR12SH, M4T32-BR12SH Crystal Input Crystal Output Negative Voltage Positive Voltage 3/12 ...

Page 4

... M4T28-BR12SH, M4T32-BR12SH MAXIMUM RATING Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicat the Operating sections of this specification is Table 2 ...

Page 5

... Typically, though, the SNAPHAT will only need to be extracted and re- inserted once in its lifetime. Average Insertion Average Extraction Number of Extractions M4T28-BR12SH, M4T32-BR12SH AI02526 5/12 ...

Page 6

... M4T28-BR12SH, M4T32-BR12SH Battery Characteristics Figure 4, page 7 illustrates the lithium coin cell dis- charge rate for a given load. This demonstrates the characteristically flat voltage level supplied by the battery until very near the end of its life. These discharge levels have been greatly accelerated in comparison to the normal, actual usage ...

Page 7

... Figure 5. DIP Extractor Tool 15k 30k 200 400 600 800 1000 1200 1400 Duration (hrs.) (A) 15k 30k 50k 1000 2000 3000 4000 Duration (hrs.) (B) AI02527 M4T28-BR12SH, M4T32-BR12SH Temp: 20˚C BR1225 100k 1600 1800 2000 Temp: 20˚C BR1632 100k 5000 6000 AI02519 7/12 ...

Page 8

... M4T28-BR12SH, M4T32-BR12SH PART NUMBERING Table 4. Ordering Information Scheme Example: Device Type M4T Battery Voltage and Capacity 28-BR12 = BR1225, 3V, 48mAh 32-BR12 = BR1632, 3V, 120mAh Package ® SNAPHAT Temperature Range 70° –40 to 85°C (M4T32-BR12SH only) Shipping Method blank = Tubes TR = Tape & Reel For a list of available options (e ...

Page 9

... Table 5. SH – 4-pin SNAPHAT Housing for 48mAh Battery & Crystal, Package Mechanical Data Symb Typ Min Max 9.78 6.73 7.24 6.48 6.99 0.38 0.46 0.56 21.21 21.84 14.22 14.99 15.55 15.95 3.20 3.61 2.03 2.29 M4T28-BR12SH, M4T32-BR12SH SHTK-A inches Typ Min 0.385 0.265 0.285 0.255 0.275 0.015 0.018 0.022 0.835 0.860 0.560 0.590 0.612 0.628 0.126 0.142 0.080 0.090 A2 Max 9/12 ...

Page 10

... M4T28-BR12SH, M4T32-BR12SH Figure 7. SH – 4-pin SNAPHAT Housing for 120mAh Battery & Crystal, Package Outline Note: Drawing is not to scale. Table 6. SH – 4-pin SNAPHAT Housing for 120mAh Battery & Crystal, Package Mechanical Data Symb Typ 10/ ...

Page 11

... Changes references to “SUPERVISOR” from “Controller;” clarify temperature 10-Jul-01 2.2 characteristics Change to include Crystal Accuracy (Table 3); add text for SNAPHAT insertion force 21-Jan-02 2.3 tolerance and battery characteristics note 20-Aug-02 2.4 Updated Insertion/Extraction Data (Figure 3) 14-Mar-03 2.5 Add Pb-free note on page 1 M4T28-BR12SH, M4T32-BR12SH Revision Details 11/12 ...

Page 12

... M4T28-BR12SH, M4T32-BR12SH Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...

Related keywords