- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello,
I have two questions.
1. We can see the Notes [3. 4.] on CY7C65213-32LTXI / CY7C65213A-32LTXI (32-pin QFN) .
There are no notes on CY7C65213-28PVXI / CY7C65213A-28PVXI (28-pin SSOP) .
Do the Notes [3. 4.] also apply to CY7C65213-28PVXI / CY7C65213A-28PVXI (28-pin SSOP) ?
2. All Input pins require an external pullup, what does the following mean?
Best regards,
Yocchi
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
Please find my answers to your above questions.
1. Yes, those notes apply to all part numbers.
2. As stated in the datasheet Note 5 - "Any GPIO, configured as “Input” should either be pulled high or low. A floating input pin (Tristate) has an indeterminate voltage level that can cause excess internal
current consumption. A 10 kΩ pull-up or pull-down resistor is recommended on each of the input pin."
The above note applies for GPIO pins. UART pins in CY7C65213/CY7C65213A have internal pull-ups. The Table 2. you have shared refers to disabling those internal pull-ups during suspend mode in order to reduce current consumption of the chip.
Do let me know if you need any further clarifications.
Pranava
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
Please find my answers to your above questions.
1. Yes, those notes apply to all part numbers.
2. As stated in the datasheet Note 5 - "Any GPIO, configured as “Input” should either be pulled high or low. A floating input pin (Tristate) has an indeterminate voltage level that can cause excess internal
current consumption. A 10 kΩ pull-up or pull-down resistor is recommended on each of the input pin."
The above note applies for GPIO pins. UART pins in CY7C65213/CY7C65213A have internal pull-ups. The Table 2. you have shared refers to disabling those internal pull-ups during suspend mode in order to reduce current consumption of the chip.
Do let me know if you need any further clarifications.
Pranava
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello Pranava-san,
Thank you very much for your help.
Does "UART pins in CY7C65213/CY7C65213A have internal pull-ups." mean that RXD, DSR#,DCD# and CTS# have internal pull-ups?
Best regards,
Yocchi
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi Yocchi-san,
Does "UART pins in CY7C65213/CY7C65213A have internal pull-ups." mean that RXD, DSR#,DCD# and CTS# have internal pull-ups?
>> Yes, they have internal pull-ups.
Pranava
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello Pranava-san,
I greatly appreciate your kindness.
Best regards,
Yocchi