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參數(shù)資料
| 型號(hào)： | SM8230A |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | Tone Dialer with Built-in Piezo Driver |
| 中文描述： | 音撥號(hào)器與內(nèi)置壓電驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 56K |
| 代理商： | SM8230A |
SM8230A
NIPPON PRECISION CIRCUITS—1
NIPPON PRECISION CIRCUITS INC.
OVERVIEW
The SM8230A is a dual-tone signal generator LSI
developed for DTMF (dual tone multi-frequency)
dialing. It features a built-in piezo-electric speaker
driver for direct connection to a piezo-electric
buzzer.
The DTMF frequencies can be set to correspond to
the DTMF standards of any country. The output level
is also adjustable under software control. These
features, combined with its small package and low
power dissipation, make the SM8230A a very use
device to use.
FEATURES
I
3-line serial interface to external CPU
2 independent, adjustable frequency outputs
Piezo driver for direct connection to a piezo-
electric buzzer
4 system clock frequencies selectable (480 kHz,
960 kHz, 1.92 MHz, 3.84 MHz)
2.6 to 3.3 V supply voltage
Low current consumption
3.0 mA (max) operating current
1 μA (max) standby current
8-pin plastic SOP
I
I
I
I
I
I
PINOUT
PACKAGE DIMENSIONS
VDD
5
4
8
1
BZH
BZL
CLK
SD
SCL
OE
VSS
8
4
6
0.4 0.1
1.27
0
1
0.4 0.2
0 10
5.2 0.3
0.15
+
0.10
Tone Dialer with Built-in Piezo Driver
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| SM8230A_06 | 制造商:NEC 制造商全稱:NEC 功能描述:Tone Dialer with Built-in Piezo Driver |
| SM8230AS | 制造商:NEC 制造商全稱:NEC 功能描述:Tone Dialer with Built-in Piezo Driver |
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| SM823J | 制造商:Ohmite Mfg Co 功能描述: |
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