Micrel, Inc.

MIC811/812

Ordering Information

Part Number

Pb-Free

Marking

(1)

Threshold Voltage

Operating Temp. Range

Package

MIC811LUY

KL

4.63

–40°C to +85°C

4-pin SOT-143

MIC811MUY

KM

4.38

–40°C to +85°C

4-pin SOT-143

MIC811JUY

KJ

4.00

–40°C to +85°C

4-pin SOT-143

MIC811TUY

KT

3.08

–40°C to +85°C

4-pin SOT-143

MIC811SUY

KS

2.93

–40°C to +85°C

4-pin SOT-143

MIC811RUY

KR

2.63

–40°C to +85°C

4-pin SOT-143

MIC812LUY

LL

4.63

–40°C to +85°C

4-pin SOT-143

MIC812MUY

LM

4.38

–40°C to +85°C

4-pin SOT-143

MIC812JUY

LJ

4.00

–40°C to +85°C

4-pin SOT-143

MIC812TUY

LT

3.08

–40°C to +85°C

4-pin SOT-143

MIC812SUY

LS

2.93

–40°C to +85°C

4-pin SOT-143

MIC812RUY

LR

2.63

–40°C to +85°C

4-pin SOT-143

Note:

1.

“_” underbar symbol not to scale

Pin Configuration

MIC811 4-Pin SOT-143 (U)

MIC812 4-Pin SOT-143 (U)

Pin Description

MIC811

MIC812

Pin Name

Pin Name

1

1

GND

IC Ground Pin.

2

N/A

/RESET

/RESET goes low if VCC falls below the reset threshold and remains asserted

for one reset timeout period (140ms min.) after VCC exceeds the reset

threshold.

N/A

2

RESET

RESET goes high if VCC falls below the reset threshold and remains asserted

for one reset timeout period (140ms min.) after VCC exceeds the reset

threshold.

3

3

/MR

Manual Reset Input. A logic low on /MR will force a reset. The reset will

remain asserted as long as /MR is held low and for one reset timeout period

(140ms min.) after /MR goes high. This input can be shorted to ground via a

switch or driven from CMOS or TTL logic. Float if unused.

4

4

VCC

Power Supply Input.

September 9, 2014

2

Revision 2.0