XR20V2170 Datasheet, PDF (40/52 Pages) Exar Corporation – I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER

XR20V2170
I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER
AC ELECTRICAL CHARACTERISTICS - UART CLOCK
Unless otherwise noted: TA=-40^o to +85^oC, Vcc=2.97 - 3.63V
SYMBOL
XTAL1
ECLK
T_ECLK
UART Crystal Oscillator
UART External Clock
External Clock Time Period
FIGURE 15. CLOCK TIMING
PARAMETER
T_ECLK
External
Clock
VIHCK
VILCK
T_ECH
REV. 1.0.0
LIMITS
3.3V ± 10%
MIN
MAX
24
64
7
UNIT
MHz
MHz
ns
T_ECL
40