RE46C180S16TF【PDF 17/58 页】IC ION SMOKE DETECT ASIC 16SOIC

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录56

13页 14页 15页 16页 [17页]18页 19页 20页 21页

?2011 Microchip Technology Inc.

DS22275A-page 17

RE46C180

4.1

Calibration and Programming

Procedures

Sixteen separate programming and Test modes are

available for user customization. The T2 input is used

to enter these modes and step through them. To enter

these modes, after power-up, T2 must be driven to V

and held at that level. To step through the modes, the

TEST input must first be driven to V

. T2 is then

clocked. TEST has to be high when clocking T2. Any-

time T2 and TEST are both driven to low, the unit will

come out of these modes and go back to the normal

operation mode. FEED and IO are re-configured to

become Test mode inputs. A T2 clock occurs when it

switches from V

to V

. The Test mode functions are

outlined in the Table 4-7.

TABLE 4-6:

FEATURE PROGRAMMING

Features

Options

Low Battery Detection Selection

6.9V

7.2V

7.5V

7.8V

10 Year End-of-Life Indicator

Enable/Disable

Smart IO with CO

Alarm Sensing

Enable/Disable

Auto Alarm Locate

Enable/Disable

Horn Synchronization

Enable/Disable

Low Battery Hush

Enable/Disable

Alarm Memory Indicator at PTT:

Horn Chirping

Enable/Disable

Alarm Memory Indicator at PTT:

GLED Flashing

Enable/Disable

Alarm Memory Indicator at

Standby Time Out Period

0/24/48 hr or no

limit

Alarm Memory

Enable/Disable

HUSH Time Out Period

9 minutes or 80s

Smart HUSH

Enable/Disable

HUSH In Alarm Only

Enable/Disable

HUSH

Enable/Disable

Tone Select

Temporal

or Continuous

TABLE 4-7:

TEST MODE FUNCTIONS

Mode

Descriptions

Clock

TEST

FEED

TESTOUT

Note 1

Normal Operation

PTT/HUSH

FEED

Not Used

IO Dump

Note 2

TM0 Speedup Mode

PTT/HUSH

CLK

Not Used

IO Dump

Note 2

TM1 Load Timer for Spill

EOL Timer Clock V

HUSH/LB HUSH

Timer Clock

Alarm Mem

Timer Clock

Not Used

TM2 User Feature

Programming

ProgData

ProgClk

ProgEn

Not Used

TM3 Horn Test/LED On;

IO High/Low

HornEnB

Note 3

IOHi En

IO Dump EnB

HB/HS En

Note 4

LEDEn

Not Used

TM4 Standby Sen Set

SmkCompEnB

T3EnB

CalClk

ReadReg

SEN

SmkCompOut

Note 5

TM5 Hyst Sen Set

SmkCompEnB

T3EnB

CalClk

ReadReg

SEN

SmkCompOut

Note 5

Note 1: After power-up, the unit is in M0, the normal operation mode. When in M0, if T2 is driven to V

, the unit

will enter TM0.

2: In M0 and TM0, the digital output TESTOUT is driven by the internal IO dump signal.

3: In TM3, if TEST = V

, the horn is turned on. IO is in weak pull-down; If TEST = V

, the horn is off. FEED

controls IO and HB/HS.

4: Valid when TEST = V

;

5: SmkCompOut digital comparator output (high if DETECT < V

SEN

; low if DETECT > V

SEN

6: LBCompOut digital comparator output (high if V

< LB trip point; low if V

> LB trip point).

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式