Rainbow Electronics MAX3107 - Manual (Page 8)

8 ______________________________________________________________________________________
MAX3107
SPI/I
2
C UART with 128-Word FIFOs
and Internal Oscillator
DC ELECTRICAL CHARACTERISTICS (continued)
(V A = +2.35V to +3.6V, V L = +1.71V to +3.6V, V EXT = +1.71V to +3.6V, T A = -40NC to +85NC, unless otherwise noted. Typical values
are at V A = +2.8V, V L = +1.8V, V EXT = +2.5V, T A = +25NC.) (Note 2)
AC ELECTRICAL CHARACTERISTICS
(V A = +2.35V to +3.6V, V L = +1.71V to +3.6V, V EXT = +1.71V to +3.6V, T A = -40NC to +85NC, unless otherwise noted. Typical values
are at V A = +2.8V, V L = +1.8V, V EXT = +2.5V, T A = +25NC.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Low Voltage V IL Configured as an input 0.4 V
Input High Voltage V IH Configured as an input 2/3 x V EXT V
Pulldown Current I PD GPIO_ = V EXT 0.25 1 2.5
F A
Input Capacitance C IN_IUART Configured as an input 5 pF
XIN
Input Low Voltage
V IL 0.2 V
Input High Voltage V IH 1.2 V A V
Input Capacitance C XI 16 pF
XOUT
Input Capacitance
C XO 16 pF
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
UART CLOCKING
Internal Oscillator Frequency f INT
T A = +25NC
V
A
≤ 2.8V -0.25% 614.4 +0.25%
kHz
-0.4% 614.4 +0.4%
T A = 0NC to +70NC -2% 614.4 +2%
T A = -40NC to +85NC -3% 614.4 +3%
External Crystal Frequency f XOSC 1 4 MHz
External Clock Frequency f CLK 0.5 30 MHz
External Clock Duty Cycle (Note 3) 45 55 %
Baud-Rate Generator Clock
Input
f REF (Note 3) 96 MHz
I 2 C BUS: TIMING CHARACTERISTICS (see Figure 1)
SCL Clock Frequency f
SCL
Standard mode 100
kHz
Fast mode 400
Bus Free Time Between a STOP
(P) and START (S) Condition
t BUF
Standard mode 4.7
F s
Fast mode 1.3
Hold Time for START (S)
Condition and Repeated START
(Sr) Condition (Note 3)
t HD:STA
Standard mode 4.0
F s
Fast mode 0.6
Low Period of the SCL Clock t LOW
Standard mode 4.7
F s
Fast mode 1.3
High Period of the SCL Clock t HIGH
Standard mode 4.0
F s
Fast mode 0.6
Data Hold Time t HD:DAT
Standard mode 0 0.9
F
s
Fast mode 0 0.9