MIC2775
Micrel
Standard Voltage Options*
Voltage
Code
46
44
31
29
28
26
25
23
22
17
Typical
Application (V
DD
)
5.0V
±5%
5.0V
±10%
3.3V
±5%
3.3V
±10%
3.0V
±5%
2.85V
±5%
2.70V
±5%
2.5V
±5%
2.4V
±5%
1.8V
±5%
Nominal Threshold
Voltage (V
TH
)
4.68
4.43
3.09
2.93
2.81
2.67
2.53
2.34
2.25
1.69
*There are ten standard versions available with an order increment of 3000 pieces. Samples of standard versions are
normally available from stock. Contact factory for information on non-standard versions. Available in tape-and-reel only.
Pin Configuration
RST GND /RST
3
2
1
4
5
/MR
VDD
SOT-23-5 (M5)
Pin Description
Pin Number
1
Pin Name
RST
Pin Function
Digital (Output): Asserted high whenever V
DD
falls below the reference
voltage. It will remain asserted for no less than 140ms after V
DD
returns
above the threshold limit.
Ground
Digital (Output): Asserted low whenever V
DD
falls below the reference
voltage. It will remain asserted for no less than 140ms after V
DD
returns
above the threshold limit.
Digital (Input): Driving this pin low initiates an immediate and unconditional
reset. Assuming V
DD
is above the threshold when /MR is released (returns
high), the reset output will be de-asserted no less than 140ms later. /MR
may be driven by a logic signal or a mechanical switch. /MR has an internal
pull-up to V
DD
and may be left open if unused.
Analog (Input): Power supply input and the voltage being monitored.
2
3
GND
/RST
4
/MR
5
VDD
MIC2775
2
September 29, 2000
MICREL [ MICREL SEMICONDUCTOR ]
