ESM2012DV datasheet by STMicroelectronics

ESM2012DV Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the ESM2012DV?
  The recommended operating voltage range for the ESM2012DV is 1.71V to 1.89V, with a typical voltage of 1.8V.
• How do I ensure the ESM2012DV is properly powered on?
  To ensure proper power-on, the VDD pin should be ramped up slowly (typically within 1ms) to the recommended operating voltage range, and the VDD pin should be decoupled with a 10nF capacitor to GND.
• What is the maximum clock frequency supported by the ESM2012DV?
  The ESM2012DV supports clock frequencies up to 100MHz.
• How do I handle the JTAG interface on the ESM2012DV?
  The JTAG interface on the ESM2012DV is compatible with the IEEE 1149.1 standard. To use JTAG, connect the TCK pin to a clock source, TMS to a mode select signal, TDI to a data input, TDO to a data output, and TRST to a reset signal.
• What is the purpose of the BYPASS pin on the ESM2012DV?
  The BYPASS pin is used to bypass the internal voltage regulator. When the BYPASS pin is tied to VDD, the internal voltage regulator is disabled, and an external voltage regulator can be used instead.