RE46C122

CMOS Ionization Smoke Detector ASIC with

R&E International

Interconnect and Timer Mode

A Subsidiary of Microchip Technology Inc.

Product Specification

© 2009 Microchip Technology Inc.

DS22173A-page 2

DC Electrical Characteristics at TA = 25°C, VDD=9V, OSCAP=.1uF, RBIAS=8.2MΩ, VSS=0V (unless

otherwise noted)

Limits

Parameter

Symbol

Test

Pin

Test Conditions

Min

Typ

Max

Units

Supply Voltage

6

Operating

6

12

V

6

RBIAS=8.2MΩ, OSCAP=.1uF

5

6.5

uA

Supply Current

6

RBIAS=8.2MΩ, OSCAP=.1uF;Vdd=12V

9

uA

8

6.2

4.5

V

2

No Local Alarm, IO as an Input

3

V

Input Voltage High

1

4.5

V

8

4.5

2.7

V

2

No Local Alarm, IO as an Input

1

V

Input Voltage Low

1

2.5

V

15

VDD=9V, DETECT=VSS, 0-40% RH

-0.75

pA

15

VDD=9V, DETECT=VSS, 85% RH

Note 1

-1.50

pA

Input Leakage Low

8

FEED=-10V

-50

uA

15

VDD=9V, DETECT=VDD, 0-40% RH

0.75

pA

15

VDD=9V, DETECT=VDD, 85% RH

Note 1

1.50

pA

8

FEED=22V

50

uA

Input Leakage High

2

No Alarm, Vio=17V

150

uA

Output Off Leakage High

4,5

Outputs Off

1

uA

Input Pull Down Current

1

TSTART=9V

20

50

80

uA

Output High Voltage

10,11

IOH=-16mA, VDD=7.2V

6.3

V

10,11

IOL=16mA, VDD=7.2V

.9

V

4

IOL=500ua

.5

V

Output Low Voltage

5

IOL=10mA, VDD=7.2V

1

V

2

No Alarm, Vio=Vdd-2V

25

60

uA

2

Alarm, Vio=Vdd-2V or Vio=0V

-4

-16

mA

Output Current

2

At Conclusion of Local Alarm or Test,

Vio=1V

5

mA

Low Battery Voltage

6

7.2

7.5

7.8

V

13

48.5

50

51.5

Internal Sensitivity Set Voltage

3

65.5