Answered

• SN74HCS594: Table 8-1

  

  Shota Mago

  Resolved

  Part Number: SN74HCS594 Hi team, Table 8-1 of SN74HCS594 and SN74HCS594-Q1 are different. It looks SN74HCS594's table is wrong. Should we believe Table 8-1 of Q1 datasheet? [Non-Q1] [Q1] Best regards, Shota Mago

  • Resolved

  • over 1 year ago
  • Logic
  • Logic forum
Answered

• SN74HCS594: /SRCLR pin treatment on no use case.

  

  Motoyasu Hattori

  Resolved

  Part Number: SN74HCS594 Hi, My customer plans NOT to use Clear on Shift register of SN74HCS594BQBR . Which is recommended, "/SRCLR pin is connect with VDD directly" or "/SRCLR pin is connected with VDD through 10k_ohm pull-up resistor"?…

  • Resolved

  • over 1 year ago
  • Logic
  • Logic forum
Answered

• SN74HCS594: VOL Spec extrapolation

  

  Cameron Wutzke

  Resolved

  Part Number: SN74HCS594 Hi! Hoping for clarification how to calculate VOL spec from datasheet. Say VCC = 5V and higher current, how could I calculate this?

  • Resolved

  • over 1 year ago
  • Logic
  • Logic forum

• RE: SN74HCS594-Q1: LED flashing when doing the BCI test

  

  Clemens Ladisch

  I cannot see where on the board the noise is coupled into the SER trace. (That would be the best place for countermeasures.)

  • over 2 years ago
  • Logic
  • Logic forum

• SN74HCS594-Q1: Operating current question

  

  Zirui Su

  TI Thinks Resolved

  Part Number: SN74HCS594-Q1 Hi team Here I have a question about its operating current. After the chip is powered on, what is the device working current? I see a 20mA in the datasheet or what value is the chip working current? At present, customer uses…

  • over 3 years ago
  • Logic
  • Logic forum

• SN74HCS594-Q1: SRCLK and RCLK frequency requirement of the device

  

  Zirui Su

  TI Thinks Resolved

  Part Number: SN74HCS594-Q1 Hi team I need your confirm that: Is there a frequency requirement of SRCLK and RCLK? I do not know whether there is a frequency requirement of the SRCLK and RCLK? What does the clock frequency mean? Does it refer to SRCLK and…

  • over 3 years ago
  • Logic
  • Logic forum

• SN74HCS594-Q1: Need the device sample code to help customer develop the system

  

  Zirui Su

  TI Thinks Resolved

  Part Number: SN74HCS594-Q1 Hi team My customer is using the chip to achieve LED control I would like to ask that if we have sample codes for them to develop the device? I do not see some example codes in datasheet or E2E forum, so we may need your help…

  • over 3 years ago
  • Logic
  • Logic forum
Answered

• SN74HCS594: Hold time requirement of RCLK w.r.t. nSRCLR

  

  Sven Probst

  Resolved

  Part Number: SN74HCS594 Other Parts Discussed in Thread: SN74LVC1G04 Dear TI experts, we want to use a chain of SN74HCS594 devices as an IO expander controlled via SPI. The clock of the parallel output register (of all devices in the chain) will be connected…

  • Resolved

  • over 3 years ago
  • Logic
  • Logic forum

• [FAQ] SN74HCS595-Q1: How do Wettable Flank WQFN packages (WBQB) help LOGIC automotive customers?

  

  Michael Marinello

  Part Number: SN74HCS595-Q1 Other Parts Discussed in Thread: SN74HCS138-Q1 , SN74HCS151-Q1 , SN74HCS153-Q1 , SN74HCS157-Q1 , SN74HCS165-Q1 , SN74HCS259-Q1 , SN74HCS365-Q1 , SN74HCS367-Q1 , SN74HCS594-Q1 , Efficient Automated Optical Inspection (AOI) with new TI…

  • over 2 years ago
  • Logic
  • Logic forum

• RE: SN74HC595: what is the output voltage level after powering up?

  

  Aki Li

  Clemens, Thank you for the support. So they can force RCLR low to make sure SN74HCS594 output low after powering up?

  • over 3 years ago
  • Logic
  • Logic forum

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