U4074B中文资料PDF规格书
U4074B规格书详情
Description
The U4074B is a monolithic integrated circuit that
contains all integral components of a ringing circuit for
telephone sets used in conjunction with a microcomputer.
The combination of a microcomputer and the U4074B
permits flexible programming of the ringing sequence
(melody), tone and volume control.
Features
Suitable for specifications FTZ 1TR2 and ETR 2
Rectifier bridge
Z-diode
Amplitude detection
Supply voltage for microcomputer 3.5 @ 1.5 mA
DC operation possible
Bridge push-pull output stage
CMOS-compatible microcomputer interface
2-bit log. volume adjustment
High-voltage bipolar technology, 30 V
Benefits
µC controlled melody and volume
Low number of external components
产品属性
- 型号:
U4074B
- 制造商:
TEMIC
- 制造商全称:
TEMIC Semiconductors
- 功能描述:
Tone Ringer Interface
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TFK |
23+ |
DIP14 |
10880 |
原装正品,支持实单 |
询价 | ||
TFK |
23+ |
SOP16 |
2580 |
现货库存 |
询价 | ||
TFK |
2023+ |
SOP |
3000 |
进口原装现货 |
询价 | ||
TFK |
2023+ |
DIP |
700000 |
柒号芯城跟原厂的距离只有0.07公分 |
询价 | ||
TFK |
23+ |
DIP14 |
10800 |
只做原装 欢迎咨询 |
询价 | ||
TFK |
21+ |
DIP |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
TFK |
2020+ |
SOP |
350000 |
100%进口原装正品公司现货库存 |
询价 | ||
TFK |
22+ |
SOP |
9600 |
原装现货,优势供应,支持实单! |
询价 | ||
TFK |
23+ |
SOP16 |
2667 |
询价 | |||
TFK |
22+ |
SMD |
6868 |
原装现货,可开13%税票 |
询价 |