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參數(shù)資料
| 型號(hào)： | HD40A4669 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī)) |
| 中文描述： | 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路（帶雙音多頻電路的低電壓微計(jì)算機(jī)） |
| 文件頁(yè)數(shù)： | 1/142頁(yè) |
| 文件大小： | 894K |
| 代理商： | HD40A4669 |
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HD404669 Series
Low-Voltage AS Microcomputers with On-Chip DTMF
Generation Circuit
ADE-202-083B
Rev. 3.0
Sept. 1999
Description
The HD404669 Series microcomputers incorporate a DTMF generation circuit, two comparators, and a
serial interface on chip. They also provide input and output pins with large current handling capacities.
Thus they are 4-bit single-chip microcomputers that are optimal for use in multifunction telephones,
cordless telephones, and other communications equipment.
HD404669 Series microcomputers have a 32.768 kHz sub-oscillator for realtime clock use, providing a
time counting facility, and a variety of power supply modes to reduce current drain.
The HD407A4669 is a ZTAT
microcomputer with on-chip PROM that drastically shortens development
time and ensures a smooth transition from debugging to mass production. (The PROM programming
specifications are the same as for the 27256 type.)
ZTAT
: Zero Turn-Around Time ZTAT is a trademark of Hitachi, Ltd.
Features
1,152-digit
×
4-bit RAM
I/O pins: 47
High-current I/O pins (source: 10 mA max.): 4
High-current I/O pins (sink: 15 mA max.):
Timer counters: 3
Input capture: one 8-bit channel
Timer outputs: 2 (with PWM output capability)
Event input: 1 (edge-programmable)
Clock synchronous 8-bit serial interface: 1
DTMF generation circuit
Comparator: 2 channels
System clock oscillator
Ceramic oscillator, crystal oscillator, or external clock operation possible
5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD404668 | Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī)) |
| HD404669 | Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī)) |
| HD407A4669 | Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī)) |
| HD404719FS | Five timer/counters |
| HD404439FS | Five timer/counters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD40A4669H | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit |
| HD40L4818H | 制造商:Renesas Electronics Corporation 功能描述: |
| HD40-M | 制造商:Tamura Corporation of America 功能描述: |
| HD40WS/EHOOD/PLUG | 制造商:Lapp 功能描述:HD 40 way side entry assembled plug 制造商:Lapp Group 功能描述:HD 40 way side entry assembled plug |
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