MCP2122

DS21894B-page 18

Preliminary

 2004 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

xclk

Oscillator

rx

Receive

tx

Transmit

bitclk

RX/TX BITCLK

RST

Reset

Uppercase letters and their meanings:

S

F

Fall

P

Period

H

High

R

Rise

I

Invalid (Hi-impedance)

V

Valid

L

Low

Z

High-impedance

AC CHARACTERISTICS

Standard Operating Conditions (unless otherwise stated)

Operating temperature: –40

Section 4.1 “DC Characteristics”.

7 pF (typical) for all input pins