55.16 XOSC32K Electrical Specifications
AC CHARACTERISTICS | Standard
Operating Conditions: VDD = AVDD = 1.71V to 3.63V (unless otherwise
stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial Temperature |
||||||
---|---|---|---|---|---|---|---|
Param. No. | Symbol | Characteristics | Min. | Typ. | Max. | Units | Conditions |
XOSC32_1 | FOSC_XOSC32 | XOSC32 Oscillator Crystal Frequency | — | 32.768 | — | kHz | XIN32, XOUT32 Secondary Osc |
XOSC32_3 | CXIN32 | XOSC32 XIN32 parasitic pin capacitance | — | 3.1 | — | pF | — |
XOSC32_5 | CXOUT32 | XOSC32 XOUT32 parasitic pin capacitance | — | 3.2 | — | pF | — |
XOSC32_11 | CLOAD_X32 (3) | 32.768 kHz Crystal Load Capacitance | — | — | 12.5 | pF | XOSC32K.CGM = 1 XOSC32K.XTALEN = 1 XOSC32K.ENABLE = 1 |
XOSC32_12 | — | — | 12.5 | pF | XOSC32K.CGM = 2 XOSC32K.XTALEN = 1 XOSC32K.ENABLE = 1 |
||
XOSC32_13 | ESR_X32 | 32.768 kHz Crystal ESR | — | — | 58 | kΩ | XOSC32K.CGM = 1 XOSC32K.XTALEN = 1 XOSC32K.ENABLE = 1 CLOAD = 12.5pF |
XOSC32_14 | — | — | 90 | kΩ | XOSC32K.CGM = 2 XOSC32K.XTALEN = 1 XOSC32K.ENABLE = 1 CLOAD = 12.5pF |
||
XOSC32_15 | TOSC32 | TOSC32 = 1/FOSC_XOSC32 | — | 30.5176 | — | µs | See parameter XOSC32_1 for
FOSC_XOSC32 value |
XOSC32_17 | XOSC32_ST (1) | XOSC32 Crystal Start-up Time | — | 12000 | Note (2) | TOSC32 | — |
XOSC32_19 | FOSC_XCLK32 | Ext Clock Oscillator Input Freq (XIN32 pin) | — | 32.768 | — | kHz | XOSC32K.XTALEN=0 XOSC32K.ENABLE = 1 |
XOSC32_21 | XCLK32_DC | Ext Clock Oscillator Duty Cycle | 40 | 50 | 60 | % | XOSC32K.XTALEN=0 XOSC32K.ENABLE = 1 |
XOSC32_23 | XCLK32_FST | XIN32 Clock Fail Safe Time-out Period | — | 4*1/(LP32K_1/2^CFDCTRL.CFDPRESC) | — | ms | LP32K_1: Refer to OSCULP32K Electrical Specifications |
Note:
|