The recommended operating temperature range for the M48Z35Y-70MH1 is -40°C to +85°C, as specified in the datasheet. However, it's essential to note that the device can tolerate a wider temperature range during storage, which is -55°C to +125°C.
The M48Z35Y-70MH1 has a built-in battery voltage monitoring feature that can detect when the battery voltage falls below a certain threshold (typically 2.5V). To handle this feature, you need to connect the VBAT pin to the battery voltage and use the VRT pin to monitor the voltage level. You can then use the VRT pin to generate an interrupt or reset signal when the battery voltage falls below the threshold.
The VCC pin is the power supply pin for the M48Z35Y-70MH1. It should be connected to a stable power source, typically in the range of 3.0V to 3.6V. The VCC pin is used to power the internal circuitry of the device, including the oscillator, logic, and memory. Make sure to decouple the VCC pin with a suitable capacitor to ensure stable operation.
The M48Z35Y-70MH1 has an internal oscillator that can be configured to operate at different frequencies. You can select the clock frequency by programming the Clock Control Register (CCR). The available clock frequencies are 32.768 kHz, 4.194 MHz, and 8.388 MHz. You can also use an external clock source by connecting it to the XTAL1 pin.
The maximum current consumption of the M48Z35Y-70MH1 depends on the operating mode and frequency. In active mode, the typical current consumption is around 1.5 mA at 3.3V and 4.194 MHz. To reduce current consumption, you can use the power-down mode, which reduces the current consumption to around 10 μA. You can also use the clock gating feature to reduce current consumption by disabling unused peripherals.
M48Z35Y-70MH1 datasheet
by STMicroelectronics
