 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
EM78808 Datasheet(PDF) 10 Page - ELAN Microelectronics Corp |
|
||||||||||||||||||||||||||||||
EM78808 Datasheet(HTML) 10 Page - ELAN Microelectronics Corp |
|
|
10 / 63 page  EM78808 8-bit Micro-controller ______________________________________________________________________________________________________________________________________________________ * This specification is subject to change without notice. 10 8/1/2004 (V3.1) VI.Pin Descriptions PIN I/O DESCRIPTION POWER VDD AVDD POWER Digital power Analog power They connect together when package as 128 pin QFP. GND AVSS POWER Digital ground Analog ground They connect together when package as 128 pin QFP. CLOCK XIN I Input pin for 32.768 kHz oscillator XOUT O Output pin for 32.768 kHz oscillator PLLC I Phase loop lock capacitor, connect a capacitor 0.01u to 0.047u with GND LCD COM0..COM15 O Common driver pins of LCD drivers SEG0..SEG7 SEG8...SEG47 SEG48..SEG55 SEG56..SEG63 SEG64..SEG71 SEG72..SEG79 O(COM16..COM23) O O (I/O : PORTB) O (I/O : PORTC) O (I/O : PORT8) O (I/O : PORT9) Segment driver pins of LCD drivers SEG0 to SEG7 are shared with COM16 to COM23 SEG48 to SEG79 are shared with IO PORT. VC1..VC5 I Reference voltage input. Each one connect a capacitor (0.1u) with GND. FSK , TONE , KTONE TIP I Should be connected with TIP side of twisted pair lines for FSK. RING I Should be connected with RING side of twisted pair lines for FSK. TONE O Dual tone output pin KTONE O (PORT67) Key tone output. Shared with PORT67. CW CWGS O Gain adjustment of single-ended input OP Amp CWIN I Single-ended input OP Amp for call waiting decoder DTMF receiver EST O Early steering output. Presents a logic high immediately when the digital algorithm detects a recognizable tone-pair (signal condition). Any momentary loss of signal condition will cause EST to return to a logic low. This pin shared with PORT56. STGT I/O Steering input/guard time output (bi-directional). A voltage greater than Vtst detected at ST causes the device to register the detected tone-pair and update the output latch. A voltage less than Vtst frees the device to accept a new tone-pair. The GT output acts to reset the external steering time-constant; its state is a function of EST and the voltage on ST . This pin shared with PORT55. OP OP- I (PORT55) The negative Vin input pin of the OP. This pin shared with PORT55. OP+ I (PORT56) The positive Vin input pin of the OP. This pin shared with PORT56. OPO O (PORT57) The output of OP. This pin shared with PORT57. |
Similar Part No. - EM78808 |
|
Similar Description - EM78808 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
