RE46C167E16TF datasheet(9/30 Pages) MICROCHIP

Part #	RE46C167E16TF

Description	CMOS Photoelectric Smoke Detector ASIC with Interconnect, Timer Mode and Alarm Memory

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Manufacturer	MICROCHIP [Microchip Technology]

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 2010 Microchip Technology Inc.

DS22251A-page 9

RE46C165/6/7/8

Low Battery

Horn Off Time

THOF3

8, 9

38

43

47

s

4095

Low battery, no alarm

Low Battery

or Chamber Fail

Period

THPER2

8, 9

38

43

47

s

4096

Low battery, no alarm

Chamber Fail

Horn Off Time

THOF4

8, 9

291

323

355

ms

31

Failed chamber, no alarm

Chamber Fail

Pause Off Time

THOF5

8, 9

38

42

46

s

4031

Failed chamber, no alarm

Push-to-Test Alarm

Memory Off Time

THOF6

8, 9

216

240

264

ms

23

Alarm memory active,

push-to-test

Push-to-Test Alarm

Memory Period

THPER3

8, 9

225

250

275

ms

24

Alarm memory active,

push-to-test

Interconnect Signal Operation (I/O)

I/O Active Delay

TIODLY1

7

0.0

s

0

Local alarm start to I/O active

Remote Alarm Delay

TIODLY2

7

0.74

0.99

1.27

s

95

RE46C165/7 only

No local alarm,

I/O active to alarm

7

0.37

0.57

0.81

s

55

RE46C166/8 only

No local alarm,

I/O active to alarm

I/O Charge

Dump Duration

TIODMP

7

0.89

0.99

1.09

s

95

RE46C165/7 only

At conclusion of local alarm

or test

7

1.19

1.32

1.46

s

127

RE46C166/8 only

At conclusion of local alarm

or test

I/O Filter

TIOFILT

7

—

0.30

s

32

Maximum I/O pulse width filtered

Hush Timer Operation

Hush Timer Period

TTPER

—

8.1

9.0

9.9

Min

51712

RE46C165/6 only

No alarm condition

—

1.1

1.2

1.4

Min

7232

RE46C167/8 only

No alarm condition

AC ELECTRICAL CHARACTERISTICS (CONTINUED)

AC Electrical Characteristics:

Unless otherwise indicated, all parameters apply at TA = -25° to 75°, VDD = 9V,

Typical Application (unless otherwise noted), VSS = 0V.

Parameter

Symbol

Test

Min

Typ

Max

Units

Clocks

Conditions

Note 1:

TPOSC and TIRON are 100% production tested. All other timing is verified by functional testing.

2:

See timing diagram for Horn Temporal Pattern in Figure 3-2.

3:

See timing diagram for Horn Continuous Pattern in Figure 3-3.

4:

During Timer mode, the LED Period is 10.5 seconds. The LED period will return to 43 seconds at the

conclusion of the Timer mode.

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