Search found 4 matches
- Mon Sep 22, 2008 7:27 am
- Forum: General Discussion
- Topic: Problems with 74HC165 of ST
- Replies: 2
- Views: 2483
Problems with 74HC165 of ST
Hi everbody I have connected the 32 outputs of one circuit to 4 PISO's to connect these outputs to a PIC16C745 into the digital inputs. The problem is that I have connected everything like the datasheet, but in the serial output of the PISO only exit the H data, only the firt data of the data chain,...
- Thu Sep 18, 2008 11:45 am
- Forum: General Discussion
- Topic: Problems with 74HC164 and 74HC4094
- Replies: 4
- Views: 2587
I think I have solve the problem, I think that the input clock of the register is too much sensible to the transitions, by this reason I have changed the 74HC164 to 74HC4094 and I have put a resistor to the clock to do with less transition the clock. I will try to do some test more to the circuit, a...
- Thu Sep 18, 2008 10:12 am
- Forum: General Discussion
- Topic: Problems with 74HC164 and 74HC4094
- Replies: 4
- Views: 2587
- Thu Sep 18, 2008 8:38 am
- Forum: General Discussion
- Topic: Problems with 74HC164 and 74HC4094
- Replies: 4
- Views: 2587
Problems with 74HC164 and 74HC4094
I have one design with a PIC16C745 after the pic I have conected a SIPO or shift register (the 74hc164 or 74hc4094) to have more conections for the rest of the circuit, but when I send a chain of information, the register put every pin to one or to cero depends almost the times from the first bit: i...