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參數(shù)資料
| 型號： | MC145488 |
| 廠商： | Motorola, Inc. |
| 英文描述： | LOW-VOLTAGE CMOS OCTAL TRANSCEIVER |
| 中文描述： | 低電壓CMOS八端口收發(fā)器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 161K |
| 代理商： | MC145488 |
SEMICONDUCTOR TECHNICAL DATA
1
REV 0
Motorola, Inc. 1997
1/97
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The MC74LCX2245 is a high performance, non–inverting octal
transceiver operating from a 2.7 to 3.6V supply. High impedance TTL
compatible inputs significantly reduce current loading to input drivers
while TTL compatible outputs offer improved switching noise
performance. A VI specification of 5.5V allows MC74LCX2245 inputs to
be safely driven from 5V devices. The MC74LCX2245 is designed to
reduce output overshoot and undershoot and is suitable for memory
address driving and all TTL level bus oriented transceiver applications;
especially those requiring the very quiet outputs.
Current drive capability is 12mA at both A and B ports. The
Transmit/Receive (T/R) input determines the direction of data flow
through the bi–directional transceiver. Transmit (active–HIGH) enables
data from A ports to B ports; Receive (active–LOW) enables data from B
to A ports. The Output Enable input, when HIGH, disables both A and B
ports by placing them in a HIGH Z condition.
Designed for 2.7 to 3.6V VCC Operation
5V Tolerant — Interface Capability With 5V TTL Logic
Supports Live Insertion and Withdrawal
IOFF Specification Guarantees High Impedance When VCC = 0V
LVTTL Compatible
LVCMOS Compatible
12mA Balanced Output Sink and Source Capability
Near Zero Static Supply Current in All Three Logic States (10
μ
A)
Substantially Reduces System Power Requirements
Latchup Performance Exceeds 500mA
ESD Performance: Human Body Model >2000V; Machine Model >200V
Figure 1. 20–Lead Pinout
(Top View)
19
20
18
17
16
15
14
2
1
3
4
5
6
7
VCC
13
8
12
9
11
10
OE
B0
B1
B2
B3
B4
B5
B6
B7
T/R
A0
A1
A2
A3
A4
A5
A6
A7
GND
This document contains information on a product under development. Motorola reserves the right to change or
discontinue this product without notice.
DW SUFFIX
20–LEAD PLASTIC SOIC
CASE 751D–04
DT SUFFIX
20–LEAD PLASTIC TSSOP
CASE 948E–02
M SUFFIX
20–LEAD PLASTIC SOIC EIAJ
CASE 967–01
SD SUFFIX
20–LEADPLASTIC SSOP
CASE 940C–03
LOW–VOLTAGE CMOS
OCTAL TRANSCEIVER
PIN NAMES
Function
Output Enable Input
Transmit/Receive Input
Side A 3–State Inputs or 3–State
Outputs
Side B 3–State Inputs or 3–State
Outputs
Pins
OE
T/R
A0–A7
B0–B7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC145488FN | LOW-VOLTAGE CMOS OCTAL TRANSCEIVER |
| MC74LCX2245DT | LOW-VOLTAGE CMOS OCTAL TRANSCEIVER |
| MC74LCX2245DW | LOW-VOLTAGE CMOS OCTAL TRANSCEIVER |
| MC74LCX2245M | LOW-VOLTAGE CMOS OCTAL TRANSCEIVER |
| MC74LCX2245SD | LOW-VOLTAGE CMOS OCTAL TRANSCEIVER |
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