Datasheet
V
CC
to GND .........................................................-0.3V to +6.0V
RESET to GND
Open-Drain .......................................................-0.3V to +6.0V
Push-Pull .............................................. -0.3V to (V
CC
+ 0.3V)
MR to GND ............................................... -0.3V to (V
CC
+ 0.3V)
Input/Output Current (all pins) ............................................ 20mA
Continuous Power Dissipation (T
A
= +70°C)
4-Pin SC70 (derate 3.1mW/°C above +70°C) .............245mW
4-Pin SOT143 (derate 4mW/°C above +70vC) ...........320mW
Operating Temperature Range ......................... -40°C to +125°C
Storage Temperature Range ............................ -65°C to +150°C
Junction Temperature ...................................................... +150°C
Lead Temperature (soldering, 10s) .................................+300°C
(V
CC
= +1.2V to +5.5V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range V
CC
T
A
= 0°C to +125°C 1.0 5.5
V
T
A
= -40°C to 0°C 1.2 5.5
Supply Current I
CC
V
CC
= +5.5V, no load 7 13
µA
V
CC
= +3.6V, no load 6 11
V
CC
= +2.5V, no load 4 8
V
CC
= +1.8V, no load 3 7.5
V
CC
Reset Threshold
(See the Reset Threshold Table)
V
TH
T
A
= +25°C -1.5% V
TH
+1.5%
VT
A
= -40°C to +85°C -2.5% +2.5%
T
A
= +85°C to +125°C -3% +3%
V
CC
Reset Delay t
RD
V
CC
falling at 10mV/µs from V
TH
+ 100mV
to V
TH
- 100mV
35 µs
V
CC
Reset Timeout Period t
RP
D3 option 150 225 300
ms
D7 option 1200 1800 2400
MR Timeout Period t
MRP
D3 and D7 options 150 225 300 ms
MR Rising Debounce Period
(Note 2)
t
DEB
D3 and D7 options 150 225 300 ms
MR Input Voltage
V
IL
V
TH
< +4V
0.3 x V
CC
V
V
IH
0.7 x V
CC
V
IL
V
TH
≥ +4V
0.8
V
IH
2.4
MR Minimum Input Pulse 1 µs
MR Glitch Rejection 100 ns
MR to RESET Delay 200 ns
MR Pullup Resistance MR to V
CC
750 1500 2250 Ω
RESET Output High
(MAX6468 Only)
V
OH
V
CC
≥ +2.5V, I
SOURCE
= 500µA, RESET
not asserted
0.8 x V
CC
V
V
CC
≥ +4.5V, I
SOURCE
= 800µA, RESET
not asserted
0.8 x V
CC
MAX6467/MAX6468 Microprocessor Supervisory Reset Circuits
with Edge-Triggered, One-Shot Manual Reset
www.maximintegrated.com
Maxim Integrated
│
2
Electrical Characteristics
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Absolute Maximum Ratings