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參數(shù)資料
| 型號： | SI2439-A-GM |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 52/70頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ISOMODEM 33.6KBPS 38-QFN |
| 標(biāo)準(zhǔn)包裝： | 364 |
| 系列： | * |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁當(dāng)前第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁
Si2494/39
56
Rev. 1.0
12
EECS
EEPROM Chip Select.
Active low read/write enable for SPI EEPROM.
13
EECLK
EEPROM Clock.
Clock for SPI EEPROM.
14
AOUTb
Audio Output B.
PWM audio output B when differential audio output is enabled.
15
AOUT
Audio Output.
PWM audio output.
16
RESET
Reset Input.
An active low input that is used to reset all control registers to a defined initialized
state.
17
C2A
Isolation Capacitor 2A.
Connects to one side of the isolation capacitor, C2.
18
C1A
Isolation Capacitor 1A.
Connects to one side of the isolation capacitor, C1.
19
RI
Ring Indicator.
The RI on (active low) indicates the presence of an ON segment of a ring signal
on the telephone line.
20
GPIO11, A0
GPIO/Address Bit 0.
General purpose input output pin 11. Address Enable in parallel mode.
21
CTS, SCLKC, CS Clear to Send/Serial Data Clock/Chip Select.
Signals that the Si2494/39 is ready to receive more digital data on the TXD pin in
data mode. Serial data clock input in SPI mode. Active low chip select in parallel
mode.
22
RXD/MISO/RD
Receive Data/Master In Slave Out/Read Enable.
Data output to DTE TXD pin in serial mode. Serial data output from modem in SPI
mode. Active low read enable pin in parallel mode.
23
TXD/MOSI/WR
Transmit Data/Master Out Slave In/Write Enable.
Data input from DTE TXD pin in serial mode. Serial data input to modem in SPI
mode. Active low write enable pin in parallel mode.
24
RTS, SS, D7
Request to Send/SPI Slave Select/Data Bit.
Active low request to send input used for flow control in UART mode. Active low
slave select in SPI mode. Bidirectional parallel bus data bit 7 in parallel mode.
25
GND
Ground.
Connects to the system digital ground.
26
VDD
Digital Supply Voltage.
Provides the 3.3V supply voltage to the Si2494/39,
27
NC
No connect.
Table 16. Si2494/39 Pin Descriptions (Continued)
Pin #
Pin Name
Description
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PIC16LC72A-04/SS | IC MCU OTP 2KX14 A/D PWM 28SSOP |
| PIC16C72A/JW | IC MCU OTP 2KX14 A/D PWM 28CDIP |
| PIC16C65B/JW | IC MCU EPROM 4KX14 PWM 40CDIP |
| SI2439-A-FM | IC ISOMODEM 33.6KBPS 38-QFN |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI2439-A-GMR | 制造商:Silicon Laboratories Inc 功能描述:33.6 KBPS ISOMODEM + VOICE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC ISOMODEM 33.6KBPS 38-QFN |
| SI2456 | 制造商:SILABS 制造商全稱:SILABS 功能描述:V.90, V.34, V.32BIS ISOMODEM⑩ WITH INTEGRATED GLOBAL DAA |
| SI2456-FT | 制造商:Silicon Laboratories Inc 功能描述:MODEM CHIP CHIPSET ISOMODEM 56KBPS 24TSSOP - Rail/Tube |
| SI2456-FT/REV F | 制造商:Silicon Laboratories Inc 功能描述:NOT RECOMMENDED FOR NEW DESIGNS, SEE SI2457-FT - Rail/Tube |
| Si2456-FTR | 制造商:Silicon Laboratories Inc 功能描述:MODEM CHIP CHIPSET ISOMODEM 56KBPS 24TSSOP - Tape and Reel |
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