| |
|
 |
Holtek
|
| Part No. |
HT82K72A
|
| OCR Text |
...ull-high resistors. pc0~pc5 pc6/rfd pc7 i/o pull-high or none wake-up bidirectional 8-bit input/output port. each nibble, pc0~pc3 and pc4~pc7, can be configured as wake-up inputs by configuration options. software in - structions determine ... |
| Description |
One Channel Keyboard
|
| File Size |
399.88K /
44 Page |
 View
it Online |
Download Datasheet
|
| |
|
|
Atmel
|
| Part No. |
U4091BM-N
|
| OCR Text |
...%. ringing frequency detector (rfd) the u4091bm-n provides an output signal for the microcontroller. this output signal is always double the value of the input signal (ringing frequency). it is generated by a cur- rent comparator with hyst... |
| Description |
Multi-standard feature phone IC, bus controlled
|
| File Size |
409.58K /
38 Page |
View
it Online |
Download Datasheet |
| |
|
|
Atmel
|
| Part No. |
U4090B-P
|
| OCR Text |
...age regulator voltage regulator rfd txa txacl offsa comp afs imped contr qs pd lidet lidet rfdo es impsel v b rpc 7 v sai,sa sacl mic, dtmf aga, ra1, ra2 tx mute mut rec, stbal recatt 6.3 v v mp v mps v lon v l v ring
8 u4090b-p 4741b?cor... |
| Description |
Multi-standard feature phone circuit with voice switch (EMI improved)
|
| File Size |
399.22K /
34 Page |
View
it Online |
Download Datasheet |
| |
|
|
ATMEL[ATMEL Corporation]
|
| Part No. |
U4091BM-NFNG3 T4091N-DDB U4091BM-N U4091BM-NFN
|
| OCR Text |
...al or fast read mode. The block rfd is always enabled. Table 1. Threshold Level
RINGTH[0:3] 0 15 Step VRING 7V 22 V 1V
Ringing Frequency Detector (rfd)
7
4666B-CORD-08/04
Clock Output Divider Adjustment
The Pin OSCOUT is a clo... |
| Description |
PROGRAMMABLE TELEPHONE AUDIO PROCESSOR
|
| File Size |
454.14K /
38 Page |
View
it Online |
Download Datasheet |
| |
|
|
聚兴科技股份有限公司
|
| Part No. |
U4090B-PFNY U4090B-PFNG3Y
|
| OCR Text |
...age regulator voltage regulator rfd txa txacl offsa comp afs imped contr qs pd lidet lidet rfdo es impsel vb rpc 7v sai,sa sacl mic, dtmf aga, ra1, ra2 tx mute mut rec, stbal recatt 6.3v vmp vmps v lon vl vring
9 4741d?cord?01/10 u4090b-p... |
| Description |
|
| File Size |
487.96K /
35 Page |
View
it Online |
Download Datasheet |
|
Price and Availability
|
