MC13892JVLR2 Freescale, MC13892JVLR2 Datasheet - Page 52

• Manufacturer Part Number: MC13892JVLR2
• Manufacturer: Freescale

Specifications of MC13892JVLR2

• Operating Temperature (max): 85C
• Operating Temperature (min): -30C
• Mounting: Surface Mount
• Package Type: BGA
• Case Length: 12mm
• Screening Level: Commercial
• Lead Free Status / RoHS Status: Compliant

FUNCTIONAL DEVICE OPERATION
CLOCK GENERATION AND REAL TIME CLOCK
VSRTC
module integrated on certain FSL processors. The VSRTC regulator is enabled as soon as the RTCPORB is detected. The
VSRTC cannot be disabled.
REAL TIME CLOCK
32 kHz clock, either the RC oscillator or the 32.768 kHz crystal oscillator as a time base, and is powered by the coin cell backup
supply when BP has dropped below operational range. In configurations where the SRTC is used, the RTC can be disabled to
conserve current drain by setting the RTCDIS bit to a 1 (defaults on at power up).
TIME AND DAY COUNTERS
counts the seconds during a 24 hour period from 0 to 86,399, and will then roll over to 0. When the roll over occurs, it increments
52
Table 17. VSRTC Specifications
13892
General
Active Mode - DC
Operating Input Voltage Range,
V
Operating Current Load Range IL
to IL
Bypass Capacitor Value
Output Voltage V
Active Mode Quiescent Current
The VSRTC regulator provides the CLK32KMCU output level. It is also used to bias the Low Power SRTC domain of the SRTC
A real Time Clock (RTC) function is provided including time and day counters as well as an alarm function. The utilizes a
The 32 kHz clock is divided down to a 1.0 Hz time tick which drives a 17 bit Time Of Day (TOD) counter. The TOD counter
INMIN
MAX
to V
INMAX
Parameter
OUT
MIN
Valid Coin Cell range or valid BP
V
IL
V
IL = 0
INMIN
INMIN
MIN
< IL < IL
< V
< V
Figure 10. SRTC block diagram
IN
IN
< V
< V
Condition
MAX
INMAX
INMAX
UVDET
Min
1.150
1.8
0
-
-
Analog Integrated Circuit Device Data
Typ
1.20
1.0
0.8
-
-
-
Freescale Semiconductor
Max
4.65
1.25
3.6
1.0
50
-
Units
μA
μA
μF
V
V
V