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參數(shù)資料
| 型號(hào)： | RTS8503C |
| 英文描述： | Caller ID Integrated System |
| 中文描述： | 來(lái)電顯示集成系統(tǒng) |
| 文件頁(yè)數(shù)： | 5/11頁(yè) |
| 文件大?。?/td> | 349K |
| 代理商： | RTS8503C |
RTS8503H
Ver 2.0
Aug. 23, 2001
4
Preliminary
Pin Description
100-pin QFP
Pin No.
1
2
3
4
5
6
7
8
9
10
11-50
51-66
67
68
69
70
71-74
Notation
RTONE
DTONE
AVDD
TIPIN
RINGIN
RD1
VIN
RTIME
AVSS
VLCD0
SEG40 – SEG1
COM16 – COM1
XTALO
XTALI
RESETB
DVSS
PIOA7 – PIOA4
I/O
O
O
Description
Ringer tone signal output.
DTMF signal output.
Power Analog power supply Input.
I
Signal input of tip side of twisted pair line (*see note 1).
I
Signal input of ring side of twisted pair line (*see note 1).
I
Ring detection signal input (*see note 2).
I
Low-voltage detector input.
I
Ring time signal input.
Power Analog ground input.
I
Voltage supply input for LCD driver.
O
Segment output pins of LCD driver.
O
Common output pins of LCD driver.
O
32.768KHz oscillator output.
I
32.768KHz oscillator input.
I
Reset signal input (low active).
Power Digital ground input.
I/O
General-purposed I/O pins with internal pull-up resistors Open-drain
structure is optioned by masking.
I
Non-maskable Interrupt input with schmitt trigger built in (low active).
I
This is a reserved pin with internal pull-up resistors. Don't connect
this pin to any specified level.
O
Ring control output or general-purposed output.
O
General-purposed output with high driving capability. (Max. 10 - 15
mA).
I/O
General-purposed I/O pins with internal pull-up resistors Open-drain
structure is optioned by masking.
Power Digital power supply input.
I
General-purposed input pins with internal pull-up resistors.
It can be programmed as interrupt input (negative-edge trigger).
I/O
General-purposed I/O pins with internal pull-up resistors.
O
3.58MHz oscillator output.
I
3.58MHz oscillator input.
I
This pin is used to receive the output data of external FSK
demodulator. One internal serial-to-parallel port is connected to this
pin.
75
76
NMIB
EAB
77
78
RI_CTL
LED
79-82
PIOA3 – PIOA0
83
DVDD
PI7 – PI0
84-91
92-97
98
99
100
PIOB5 – PIOB0
OSCO
OSCI
RXD
Note 1:
Note 2:
‘TIPIN’ and ‘RINGIN’ must be DC isolated from the phone line.
‘RD1’ input is normally coupled to the one of the twisted pair wires through an attenuating network. It
detects energy and enables the 3.58MHz oscillator and precision ring detection.
It is suggested that the power AVDD and DVDD are blocked by coil for de-coupling the noise form
analog circuit to digital circuit. (AVSS and DVSS, too)
Note 3:
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RTS8503H | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Caller ID Integrated System |
| RTS8505C | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:The RTS8505C is a caller ID integrated chip with call waiting function. An 8-bit microprocessor (6502) has been built in the chip and it provides a co |
| RTS881 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Consumer IC |
| RTS882 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Consumer IC |
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