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http://www.union-ic.com Rev.01 Jan.2015

2/17

UM807/821/822

Pin Configurations

Top View

Ordering Information

UM8 XX Z T P

XX: Output Type

=07

Open-Drain Active Low

=21

Push-Pull Active Low

=22

Push-Pull Active High

Z: Reset Threshold (V)

=L

4.63

=M

4.38

=J

4.00

=T

3.08

=S

2.93

=R

2.63

=Z

2.32

T: Manual Reset Setup Period (s)

=A

10.08

=B

6.72

=C

1.68

P: Package Type

=E

SOT143

1

2

3

4

GND

RESET

(RESET)

MR

( ) are for UM822

1

2

3

4

XXX

M: Month Code

UM807/821/822

SOT143