MC145745中文資料摩托羅拉數(shù)據(jù)手冊(cè)PDF規(guī)格書
MC145745規(guī)格書詳情
V.21/V.23 Telemeter Modem
The MC145745 is a selectable modem chip compatible with ITU V.21 (300 baud full duplex asynchronous) and V.23 mode 2 (1200 baud half duplex asynchronous). The built–in differential line driver has the capability of driving 0 dBm into a 600 ? load with a 5 V single power supply. This device also includes a DTMF generator, DTMF receiver, call–progress tone detector, answer tone generator, and a receive timing control circuit.
A low consumption device, the MC145745 integrates various functions in a small package. This modem IC is best suited for telemeter and other applications of this type.
? Conforms to ITU V.21 and V.23 Recommendations
? DTMF Generator and Receiver for all 16 Standard Digits
? Capable of Driving 0 dBm into a 600 ? Load (VCC = 5 V)
? Automatic Gain Control (AGC) Amplifier for the DTMF Receiver
? Call–Progress Tone Detector
? Four–Wire Serial Data Interface (SCP)
? Programmable Transmission and Carrier Detection Levels
? FSK/DTMF Analog Loopback Self–Test Function
? Crystal Oscillator (3.579545 MHz) and Half Divider Circuit (7.159090 MHz) for External Inputs
? Operates in the Voltage Range of 3.3 – 5.5 V
? Power Down Mode (ICC
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
只做原裝 |
24+ |
3.9 |
36520 |
一級(jí)代理/放心采購(gòu) |
詢價(jià) | ||
MOTOROLA/摩托羅拉 |
23+ |
DIP |
90000 |
只做自庫(kù)存深圳可交貨 |
詢價(jià) | ||
MOTOROLA |
SOP28 |
68900 |
原包原標(biāo)簽100%進(jìn)口原裝常備現(xiàn)貨! |
詢價(jià) | |||
MOTOROLA |
22+ |
SOP28 |
3000 |
原裝正品,支持實(shí)單 |
詢價(jià) | ||
MOT |
19+ |
CDIP |
2539 |
原廠代理渠道,每一顆芯片都可追溯原廠； |
詢價(jià) | ||
FREESCALE |
22+ |
SOIC28WEIAJ- |
2000 |
原裝現(xiàn)貨庫(kù)存.價(jià)格優(yōu)勢(shì) |
詢價(jià) | ||
MOTOROLA |
24+ |
847 |
詢價(jià) | ||||
ON/安森美 |
22+ |
SOP28 |
9600 |
原裝現(xiàn)貨,優(yōu)勢(shì)供應(yīng),支持實(shí)單! |
詢價(jià) | ||
最新 |
2000 |
原裝正品現(xiàn)貨 |
詢價(jià) | ||||
MOTOROLA/摩托羅拉 |
2022+ |
SOP28 |
30000 |
進(jìn)口原裝現(xiàn)貨供應(yīng),原裝 假一罰十 |
詢價(jià) |
