M41ST84Y Datasheet PDF - ST Microelectronics
| Part Number | M41ST84Y | |
| Description | 5.0 or 3.0V / 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS | |
| Manufacturers | ST Microelectronics | |
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There is a preview and M41ST84Y download ( pdf file ) link at the bottom of this page. Total 31 Pages | ||
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M41ST84Y
M41ST84W
5.0 or 3.0V, 512 bit (64 x 8) SERIAL RTC
with SUPERVISORY FUNCTIONS
FEATURES SUMMARY
s 5.0 OR 3.0V OPERATING VOLTAGE
s SERIAL INTERFACE SUPPORTS I2C BUS
(400 KHz)
s OPTIMIZED FOR MINIMAL INTERCONNECT
TO MCU
s 2.5 TO 5.5V OSCILLATOR OPERATING
VOLTAGE
s AUTOMATIC SWITCH-OVER and DESELECT
CIRCUITRY
s CHOICE OF POWER-FAIL DESELECT
VOLTAGES:
– M41ST84Y: VCC = 4.5 to 5.5V;
4.20V ≤ VPFD ≤ 4.50V
– M41ST84W: VCC = 2.7 to 3.6V;
2.55V ≤ VPFD ≤ 2.70V
s 1.25V REFERENCE (for PFI/PFO)
s COUNTERS FOR TENTHS/HUNDREDTHS
OF SECONDS, SECONDS, MINUTES,
HOURS, DAY, DATE, MONTH, YEAR, and
CENTURY
s 44 BYTES OF GENERAL PURPOSE RAM
s PROGRAMMABLE ALARM and INTERRUPT
FUNCTION (VALID EVEN DURING BATTERY
BACK-UP MODE)
s WATCHDOG TIMER
s MICROPROCESSOR POWER-ON RESET
s BATTERY LOW FLAG
s ULTRA-LOW BATTERY SUPPLY CURRENT
OF 500 nA (max)
s OPTIONAL PACKAGING INCLUDES A 28-
LEAD SOIC and SNAPHAT® TOP (to be
ordered separately)
s SNAPHAT PACKAGE PROVIDES DIRECT
CONNECTION FOR A SNAPHAT TOP,
WHICH CONTAINS THE BATTERY and
CRYSTAL
* Contact Local Sales Office
Figure 1. 16-pin SOIC Package
16
1
SO16 (MQ)
Figure 2. 28-pin SOIC Package*
SNAPHAT (SH)
Battery & Crystal
28
1
SOH28 (MH)
June 2003
Rev. 4.0
1/31
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Figure 4. 16-pin SOIC Connections
XI
XO
RST
WDI
RSTIN
PFO
VBAT
VSS
1 16
2 15
3 14
4 M41ST84Y 13
5 M41ST84W 12
6 11
7 10
89
AI03678
VCC
NC
IRQ/FT/OUT
NC
PFI
SQW
SCL
SDA
Figure 6. Block Diagram
SDA
SCL
Crystal
WDI
VCC
I2C
INTERFACE
32KHz
OSCILLATOR
M41ST84Y, M41ST84W
Figure 5. 28-pin SOIC Connections
SQW
NC
NC
NC
NC
NC
NC
WDI
RSTIN
NC
NC
NC
PFO
VSS
1 28
2 27
3 26
4 25
5 24
6 23
7 M41ST84Y 22
8 M41ST84W 21
9 20
10 19
11 18
12 17
13 16
14 15
AI03679
VCC
NC
IRQ/FT/OUT
NC
NC
NC
PFI
NC
SCL
NC
RST
NC
SDA
NC
REAL TIME CLOCK
CALENDAR
44 BYTES
USER RAM
RTC w/ALARM
& CALIBRATION
AF
WATCHDOG
WDF
SQUARE WAVE
IRQ/FT/OUT(1)
SQW
POWER
VBAT
RSTIN
PFI
1.25V
(Internal)
Note: 1. Open drain output
VBL= 2.5V COMPARE
VSO = 2.5V COMPARE
BL
VPFD = 4.4V COMPARE
(2.65V for ST84W)
POR
COMPARE
RST(1)
PFO
AI03931
5/31
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for M41ST84Y electronic component. |
| Information | Total 31 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ M41ST84Y.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| M41ST84W | The function is 5.0 or 3.0V / 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS. ST Microelectronics | |
| M41ST84WMH | The function is 5.0 or 3.0V / 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS. ST Microelectronics | |
| M41ST84WMH1 | The function is 5.0 or 3.0V / 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS. ST Microelectronics | |
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