8-bit parallel-in/serial-out shift register
The 74LV165A is an 8-bit parallel-load or serial-in shift register with complementary serial outputs (Q7 and Q7) available from the last stage. When the parallel-load input (PL) is LOW, parallel data from the inputs D0 to D7 are loaded into the register asynchronously. When input PL is HIGH, data enters the register seria lly at the input DS. The testbech for the Serial shift register Serial Input Serial Output Shift Register Exercizes 1. In test bench the shift register is instantiated with N=2. Verify that it behaves as expected. Repead the testbench and verification for N=4 2. Write the above code for left shift in place of right shift. The data now comes out of the MSB.
The 74LV165 is an 8-bit parallel-load or serial-in shift register with complementary serial outputs (Q7 and Q7) available from the last stage. When the parallel-load input (PL) is LOW, parallel data from the inputs D0 to D7 are loaded into the register asynchronously. When input PL is HIGH, data enters the register serially at the input DS. It shifts one place to the right (Q0→Q1→Q2, etc.) with each positive-going clock transition. This feature allows parallel-to-serial converter expansion by tying the output Q7 to the input DS of the succeeding stage.
Code for an 8-bit shift-left register with a. Any Veriloga code of a 10-bit parallel in serial out (PISO) shift register. Verilog code for an 8-bit shift-left register with a negative-edge clock. 20 Nov 2016 - 22 min - Uploaded by Learn ItParallel input serial output register in vhdl. A 4-bit serial-in parallel-out shift register.SHIFT REGISTER (Parallel In Serial Out) VHDL Code For PISO library ieee;.hey!! Remedy for cracked feet heels someone provide me with the behavioral description code of a 4-bit shift register with a serial input and and parel output in verilog i am looking for.Chapter 10 Shift Registers.
The clock input is a gate-OR structure which allows one input to be used as an active LOW clock enable input (CE) input. The pin assignment for the inputs CP and CE is arbitrary and can be reversed for layout convenience. The LOW-to-HIGH transition of the input CE should only take place while CP HIGH for predictable operation. Either the CP or the CE should be HIGH before the LOW-to-HIGH transition of PL to prevent shifting the data when PL is activated.
Features and benefits
- Wide supply voltage range from 1.0 V to 5.5 V
- Synchronous parallel-to-serial applications
- Optimized for low voltage applications: 1.0 V to 3.6 V
- Synchronous serial input for easy expansion
- Latch-up performance exceeds 250 mA
- 5.5 V tolerant inputs/outputs
- Direct interface with TTL levels (2.7 V to 3.6 V)
- Power-down mode
- Complies with JEDEC standards:
- JESD8-5 (2.3 V to 2.7 V)
- JESD8B/JESD36 (2.7 V to 3.6 V)
- JESD8-1A (4.5 V to 5.5 V)
- ESD protection:
- HBM JESD22-A114-A exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
- Specified from -40°C to +85°C and from -40°C to +125°C
Parametrics
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | No of bits | Tamb (°C) | Rth(j-c) (K/W) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74LV165D | Production | 1.0 - 5.5 | TTL | ± 12 | 18 | 78 | 8 | low | -40~125 | 91 | 9.3 | 51 | SO16 |
| 74LV165DB NRND | Not for design in | SSOP16 | |||||||||||
| 74LV165PW | Production | 1.0 - 5.5 | TTL | ± 12 | 18 | 78 | 8 | low | -40~125 | 120 | 3.3 | 48.7 | TSSOP16 |
Package
| Package | Package information | Reflow-/Wave soldering | Status | ||||
|---|---|---|---|---|---|---|---|
| 74LV165D | SO16 (SOT109-1) | SOT109-1 | SO-SOJ-REFLOW SO-SOJ-WAVE | Reel 13' Q1/T1 | Active | 74LV165D | 74LV165D,118 (9351 560 60118) |
| Bulk Pack | Active | 74LV165D | 74LV165D,112 (9351 560 60112) | ||||
| 74LV165DB NRND | SSOP16 (SOT338-1) | SOT338-1 | SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE | Reel 13' Q1/T1 | Active | LV165 | 74LV165DB,118 (9351 660 30118) |
| Bulk Pack | Active | LV165 | 74LV165DB,112 (9351 660 30112) | ||||
| 74LV165PW | TSSOP16 (SOT403-1) | SOT403-1 | SSOP-TSSOP-VSO-WAVE | Reel 13' Q1/T1 | Active | LV165 | 74LV165PW,118 (9351 745 40118) |
| Bulk Pack | Active | LV165 | 74LV165PW,112 (9351 745 40112) |
Quality, reliability & chemical content
| Leadfree conversion date | ||||||||
|---|---|---|---|---|---|---|---|---|
| 74LV165D | 74LV165D,118 | 74LV165D | week 6, 2004 | 144.9 | 10.23 | 9.78E7 | 1 | 1 |
| 74LV165D | 74LV165D,112 | 74LV165D | week 6, 2004 | 144.9 | 10.23 | 9.78E7 | 1 | 1 |
| 74LV165DB NRND | 74LV165DB,118 | 74LV165DB | week 12, 2005 | 1 | 1 | |||
| 74LV165DB NRND | 74LV165DB,112 | 74LV165DB | week 12, 2005 | 1 | 1 | |||
| 74LV165PW | 74LV165PW,118 | 74LV165PW | week 17, 2005 | 144.9 | 10.23 | 9.78E7 | 1 | 1 |
| 74LV165PW | 74LV165PW,112 | 74LV165PW | week 17, 2005 | 144.9 | 10.23 | 9.78E7 | 1 | 1 |
Documentation (10)
| File name | Title | Type | Date |
|---|---|---|---|
| 74LV165 | 8-bit parallel-in/serial-out shift register | Data sheet | 2017-03-17 |
| Nexperia_Selection_guide_2020 | Nexperia Selection Guide 2020 | Selection guide | 2020-01-31 |
| SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
| SOT109-1 | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body | Package information | 2020-04-21 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
| SOT403-1 | plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.1 mm body | Package information | 2020-04-21 |
| SSOP-TSSOP-VSO-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
| SOT338-1 | plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Package information | 2020-04-21 |
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