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參數資料
| 型號： | MC14578P |
| 廠商： | Freescale Semiconductor |
| 文件頁數： | 1/8頁 |
| 文件大小： | 0K |
| 描述： | IC SMOKE COMPARATOR MPWR 16-DIP |
| 標準包裝： | 25 |
| 系列： | * |
| 類型： | * |
| 應用： | * |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 16-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 16-PDIP |
| 包裝： | 管件 |
MC14578
Rev 2, 05/2005
Freescale Semiconductor
Technical Data
Freescale Semiconductor, Inc., 2005. All rights reserved.
Archived by Freescale Semiconductor, Inc., 2009
Archive
Information
Archive
Information
CMOS
Micro-Power Comparator plus
Voltage Follower
The MC14578 is an analog building block consisting of a very-high input
impedance comparator. The voltage follower allows monitoring the noninverting
input of the comparator without loading.
Four enhancement-mode MOSFETs are also included on chip. These FETs
can be externally configured as open-drain or totem-pole outputs. The drains
have on-chip static-protecting diodes. Therefore, the output voltage must be
maintained between VSS and VDD.
The chip requires one external component. A 3.9 M
Ω ±10% resistor must be
connected from the Rbias pin to VDD. This circuit is designed to operate in smoke
detector systems that comply with UL217 and UL268 specifications.
Features
Applications:
Pulse Shapers
Line-Powered Smoke Detectors
Threshold Detectors
Liquid/Moisture Sensors
Low-Battery Detectors
CO Detector and Micro Interface
Operating Voltage Range: 3.5 to 14 V
Operating Temperature Range: -30
° to 70°C
Input Current (IN + Pin): ±1 pA @ 25
°C (DIP Only)
Quiescent Current: 10
μA @ 25°C
Electrostatic Discharge (ESD) Protection Circuitry on All Pins
ORDERING INFORMATION
Device
Temperature
Range
Case No.
Package
MC14578P
-30
° to 70°C
648-08
Plastic Dip
MC14578
CMOS
MICRO-POWER COMPARATOR
PLUS VOLTAGE FOLLOWER
P SUFFIX
PLASTIC DIP
CASE 648-08
8
10
9
1
2
3
4
5
6
7
16
15
14
13
12
11
VDD
Comp OUT
IN A
IN B
OUT A
OUT B
IN C
OUT C1
NC
IN +
NC
Buff OUT
IN–
Rbias
VSS
OUT C2
Figure 1. Pin Connections
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