MIC2774H-17BM5 データシートの表示（PDF） - Micrel
部品番号
コンポーネント説明
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MIC2774H-17BM5 Datasheet PDF : 8 Pages
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MIC2774
Standard Voltage Options*
Voltage
Code
46
Typical
Application (VDD)
5.0V ±5%
Nominal Threshold
Voltage (VTH)
4.68
44
5.0V ±10%
4.43
31
3.3V ±5%
3.09
29
3.3V ±10%
2.93
28
3.0V ±5%
2.81
26
2.85V ±5%
2.67
25
2.70V ±5%
2.53
23
2.5V ±5%
2.34
22
2.4V ±5%
2.25
17
1.8V ±5%
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.
Micrel
Pin Configuration
/MR GND RST
3
2
1
/MR GND /RST
3
2
1
4
5
IN
VDD
SOT-23-5 (M5)
“H” Version
4
5
IN
VDD
SOT-23-5 (M5)
“L” and “N” Version
Pin Description
Pin Number
MIC2774H
1
Pin Number
MIC2774L
MIC2774N
1
2
2
3
3
4
4
5
5
MIC2774
Pin Name
RST
/RST
GND
/MR
IN
VDD
Pin Function
Digital (Output): Asserted high whenever VIN or VDD falls below the thresh-
old voltage. It will remain asserted for no less than 140ms after VIN and VDD
return above the threshold limits.
Digital (Output): Asserted low whenever VIN or VDD falls below the threshold
voltage. It will remain asserted for no less than 140ms after VIN and VDD
return above the threshold limits. (open-drain for “N” version)
Ground
Digital (Input): Driving this pin low initiates immediate and unconditional
reset. Assuming VIN and VDD are above the thresholds 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 VDD and may be left open if unused.
Analog (Input): The voltage on this pin is compared to the internal 300mV
reference. An under-voltage condition will trigger a reset sequence.
Analog (Input): Power supply input for internal circuitry and input to the fixed
voltage monitor. The voltage on this pin is compared against the internal
reference. An undervoltage condition will trigger a reset sequence.
2
September 29, 2000
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