MIC705_14 Datasheet, PDF (2/10 Pages) Micrel Semiconductor – μP Supervisory Circuit

Micrel, Inc.
Ordering Information
Part Number
MIC705MY
MIC706MY
MIC707MY
MIC708MY
Threshold (V) /RESET RESET WDI
4.65
√
√
4.40
√
√
4.65
√
√
4.40
√
√
Junction Temperature Range
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
MIC705/706/707/708
Package
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
Pin Configuration
MIC705/706
8-Pin SOIC (M)
(Top View)
MIC707/708
8-Pin SOIC (M)
(Top View)
Pin Description
Pin Number
MIC706
Pin Number
MIC708
1
1
2
2
3
3
4
4
5
5
6
N/A
N/A
6
Pin Name Pin Name
/MR
VCC
GND
PFI
/PFO
WDI
N/C
Manual reset input forces /RESET to assert when pulled below 0.8V. An internal
pull-up current of 250µA on this input forces it high when left floating. This input
can also be driven from TTL or CMOS logic.
Primary supply input, +5V.
IC ground pin, 0V reference.
Power-Fail Input: Internally-connected to the power-fail comparator which is
referenced to 1.25V. The power-fail output (/PFO) remains high if PFI is above
1.25V. PFI should be connected to GND or VCC if the power-fail comparator is not
used.
Power-Fail Output: The power-fail comparator is independent of all other function
on this device.
Watchdog Input. The WDI input monitors microprocessor activity; an internal
watchdog timer resets itself with each transition on the watchdog input. If the WDI
pin is held high or low for longer than the watchdog timeout period, /WDO is forced
to active low. The watchdog function can be disabled by floating the WDI pin.
Not internally connected.
September 15, 2014
2
Revision 2.1