Datasheet

MCP2120
DS21618B-page 16 © 2007 Microchip Technology Inc.
4.2 Timing Parameter Symbology and Load Conditions
The timing parameter symbols have been created following one of the following formats:
4.2.1 TIMING CONDITIONS
The temperature and voltages specified in Table 4-2 apply to all timing specifications unless otherwise noted. Figure 4-
2 specifies the load conditions for the timing specifications.
TABLE 4-1: SYMBOLOGY
TABLE 4-2: AC TEMPERATURE AND VOLTAGE SPECIFICATIONS
FIGURE 4-2: Load Conditions for Device Timing Specifications
1. TppS2ppS 2. TppS
T
F Frequency T Time
E Error
Lowercase letters (pp) and their meanings:
pp
io Input or Output pin osc Oscillator
rx Receive tx Transmit
bitclk RX/TX BITCLK RST Reset
drt Device Reset Timer
Uppercase letters and their meanings:
S
F Fall P Period
H High R Rise
I Invalid (Hi-impedance) V Valid
L Low Z Hi-impedance
AC CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating temperature –40°C ≤ T
A ≤ +85°C (industrial)
Operating voltage V
DD range as described in DC spec Section 4.1 “DC Character-
istics”.
PIN
VSS
CL
CL = 50 pF for all pins except OSC2
15 pF for OSC2 when external clock is used to drive OSC1