M3488中文资料PDF规格书
M3488规格书详情
GENERAL DESCRIPTION
The M3488 is intended for large telephone switching systems, mainly central exchanges,digital line concentrators and private branch exchanges where a distributed microcomputer control approach is extensively used. It consists of a speech memory (SM), a control memory (CM), a serial/parallel and a parallel/serial converter, an internal parallel bus, an interface (8 data lines, 11 control signals) and dedicated control logic.
■ 256 INPUT AND 256 OUTPUT CHANNEL CMOS DIGITAL SWITCHING MATRIX COMPATIBLE WITH M088
■ BUILDING BLOCK DESIGNED FOR LARGE CAPACITY ELECTRONIC EXCHANGES, SUBSYSTEMS AND PABX
■ NO EXTRA PIN NEEDED FOR NOT-BLOCKING SINGLE STAGE AND HIGHER CAPACITY SYNTHESIS BLOCKS (512 or 1024 channels)
■ EUROPEAN TELEPHONE STANDARD COMPATIBLE (32 serial channels per frame)
■ PCM INPUTS AND OUTPUTS MUTUALLY COMPATIBLE
■ ACTUAL INPUT-OUTPUT CHANNEL CONNECTIONS STORED AND MODIFIED VIA AN ON CHIP 8-BIT PARALLEL MICROPROCESSOR INTERFACE
■ TYPICAL BIT RATE : 2Mbit/s
■ TYPICAL SYNCHRONIZATION RATE : 8KHz (time frame is 125µs)
■ 5V P0WER SUPPLY
■ CMOS & TTL INPUT/OUTPUT LEVELS COMPATIBLE
■ HIGH DENSITY ADVANCED 1.2µm HCMOS3 PROCESS
Main instructions controlled by the microprocessor interface
■ CHANNEL CONNECTION/DISCONNECTION
■ OUTPUT CHANNEL DISCONNECTION
■ INSERTION OF A BYTE ON A PCM OUTPUT CHANNEL/DISCONNECTION
■ TRANSFER TO THE MICROPROCESSOR OF A SINGLE PCM OUTPUT CHANNEL SAMPLE
■ TRANSFER TO THE MICROPROCESSOR OF A SINGLE OUTPUT CHANNEL CONTROL WORD
■ TRANSFER TO THE MICROPROCESSOR OF A SELECTED 0 CHANNEL PCM INPUT DATA
产品属性
- 型号:
M3488
- 制造商:
STMicroelectronics
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ST/意法 |
23+ |
NA/ |
30 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
ST |
2020+ |
PDIP |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
ST |
21+ |
QFP44 |
35200 |
一级代理/放心采购 |
询价 | ||
ST/意法 |
22+ |
DIP40 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
ST |
23+ |
原厂封装 |
9896 |
询价 | |||
ST |
QFP |
36900 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
ST/意法 |
24+ |
DIP40 |
990000 |
明嘉莱只做原装正品现货 |
询价 | ||
ST |
23+ |
QFP44 |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
MITSUBISH |
23+ |
BGAQFP |
8659 |
原装公司现货!原装正品价格优势. |
询价 | ||
ST |
+ |
DIP40 |
29 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 |