MB9B320TA datasheet(9/141 Pages) SPANSION

9 / 141 page

D a t a S h e e t

MB9B320TA_DS706-00062-2v0-E, January 30, 2015

CONFIDENTIAL

 Clock and Reset

[Clocks]

Selectable from five clock sources (2 external oscillators, 2 built-in CR oscillators, and Main PLL).

 Main Clock

: 4 MHz to 48 MHz

 Sub Clock

: 32.768 kHz

 Built-in high-speed CR Clock

: 4 MHz

 Built-in low-speed CR Clock

: 100 kHz

 Main PLL Clock

[Resets]

 Reset requests from INITX pin

 Power-on reset

 Software reset

 Watchdog timers reset

 Low-voltage detection reset

 Clock Super Visor reset

 Clock Super Visor (CSV)

Clocks generated by built-in CR oscillators are used to supervise abnormality of the external clocks.

 If external clock failure (clock stop) is detected, reset is asserted.

 If external frequency anomaly is detected, interrupt or reset is asserted.

 Low-Voltage Detector (LVD)

This Series includes 2-stage monitoring of voltage on the VCC pins. When the voltage falls below the

voltage that has been set, Low-Voltage Detector generates an interrupt or reset.

 LVD1: error reporting via interrupt

 LVD2: auto-reset operation

 Low-Power Consumption Mode

Six low-power consumption modes supported.

 SLEEP

 TIMER

 RTC

 STOP

 Deep standby RTC (selectable between keeping the value of RAM and not)

 Deep standby STOP (selectable between keeping the value of RAM and not)

 Debug

・Serial Wire JTAG Debug Port (SWJ-DP)

・Embedded Trace Macrocell (ETM)

 Unique ID

Unique value of the device (41-bit) is set.

 Power Supply

Wide range voltage : VCC

= 2.7V to 5.5V

: USBVCC = 3.0V to 3.6V (when USB is used)

= 2.7V to 5.5V (when GPIO is used)

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