Datasheet

Note: The first “_ _” is a placeholder for the threshold voltage
level of the devices. A desired threshold level is set by the
two-number suffix found in Table 1. The third “_” is a place-
holder for the manual reset setup period of the devices. A
desired setup period is set by the letter suffix found in Table
2. All devices are available in tape-and-reel only. There is a
2500-piece minimum order increment for standard versions
(Table 2). Sample stock is typically held on standard versions
only. Nonstandard versions require a minimum order increment
of 10,000 pieces. Contact factory for availability.
Devices are available in both leaded and lead(Pb)-free packag-
ing. Specify lead-free by replacing “-T” with “+T” when ordering.
PART TEMP RANGE PIN-PACKAGE
MAX6445UK_ _ _-T -40°C to +85°C 5 SOT23
MAX6446UK_ _ _-T -40°C to +85°C 5 SOT23
MAX6447UK_ _ _-T -40°C to +85°C 5 SOT23
MAX6448UK_ _ _-T -40°C to +85°C 5 SOT23
MAX6449UT_ _ _-T -40°C to +85°C 6 SOT23
MAX6450UT_ _ _-T -40°C to +85°C 6 SOT23
MAX6451UT_ _ _-T -40°C to +85°C 6 SOT23
MAX6452UT_ _ _-T -40°C to +85°C 6 SOT23
MAX6444
µP
V
CC
V
CC
RESETMR1
+3.3V
RESET
GND GND
RESET TIMEOUT PERIOD
210ms
MR1 SETUP PERIOD
t
MR
MR1
RESET
TOP VIEW
GND
V
CC
MR1
1 5 MR2RESET
MAX6445
MAX6446
SOT23-5
2
3 4
GND
V
CC
MR1
1 5 MR2RESET
MAX6447
MAX6448
SOT23-5
2
3 4
GND
V
CC
MR1
1 6 MR2
5 RSTIN
RESET
MAX6449
MAX6450
SOT23-6
2
3 4
GND
V
CC
MR1
1 6 MR2
5 RSTIN
RESET
MAX6451
MAX6452
SOT23-6
2
3 4
MAX6443–MAX6452 µP Reset Circuits with Long Manual Reset
Setup Period
www.maximintegrated.com
Maxim Integrated │ 10
Typical Operating CircuitOrdering Information (continued)
Pin Congurations (continued)