MCP2122T-E Просмотр технического описания (PDF) - Microchip Technology

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MCP2122T-E

Infrared Encoder/Decoder

Microchip Technology 

MCP2122

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

1. TppS2ppS

T

F

Frequency

E

Error

Lowercase letters (pp) and their meanings:

pp

io

Input or Output pin

rx

Receive

bitclk

RX/TX BITCLK

Uppercase letters and their meanings:

S

F

Fall

H

High

I

Invalid (Hi-impedance)

L

Low

2. TppS

T

Time

xclk

tx

RST

Oscillator

Transmit

Reset

P

Period

R

Rise

V

Valid

Z

High-impedance

TABLE 4-2: AC TEMPERATURE AND VOLTAGE SPECIFICATIONS

AC CHARACTERISTICS

Standard Operating Conditions (unless otherwise stated)

Operating temperature: –40°C ≤ TA ≤ +125°C (Extended)

Operating voltage VDD range as described in DC spec,

Section 4.1 “DC Characteristics”.

FIGURE 4-2:

LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS

PIN

CL

CL = 50 pF for all output pins

7 pF (typical) for all input pins

VSS

DS21894C-page 20

Preliminary

© 2007 Microchip Technology Inc.

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