MC145488FN Motorola, MC145488FN Datasheet

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MC145488FN

Manufacturer Part Number
MC145488FN
Description
MC145488FNLOW-VOLTAGE CMOS OCTAL TRANSCEIVER
Manufacturer
Motorola
Datasheet

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Product Preview
Low-Voltage CMOS Octal
Transceiver
With 5V-Tolerant Inputs and Outputs
(3-State, Non-Inverting)
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 V I 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.
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.
This document contains information on a product under development. Motorola reserves the right to change or
discontinue this product without notice.
1/97
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1997
Designed for 2.7 to 3.6V V CC Operation
5V Tolerant — Interface Capability With 5V TTL Logic
Supports Live Insertion and Withdrawal
I OFF Specification Guarantees High Impedance When V CC = 0V
LVTTL Compatible
LVCMOS Compatible
12mA Balanced Output Sink and Source Capability
Near Zero Static Supply Current in All Three Logic States (10 A)
Substantially Reduces System Power Requirements
Latchup Performance Exceeds 500mA
ESD Performance: Human Body Model >2000V; Machine Model >200V
The MC74LCX2245 is a high performance, non–inverting octal
Current drive capability is 12mA at both A and B ports. The
V CC
T/R
20
1
OE
A0
19
2
B0
A1
18
3
Figure 1. 20–Lead Pinout
B1
A2
17
4
(Top View)
B2
A3
16
5
B3
A4
15
6
1
B4
A5
14
7
B5
13
A6
8
B6
A7
12
9
GND
B7
11
10
PIN NAMES
Pins
OE
T/R
A0–A7
B0–B7
REV 0
MC74LCX2245
LOW–VOLTAGE CMOS
OCTAL TRANSCEIVER
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
20–LEAD PLASTIC SOIC EIAJ
20–LEAD PLASTIC TSSOP
20–LEAD PLASTIC SOIC
20–LEADPLASTIC SSOP
CASE 751D–04
CASE 940C–03
CASE 948E–02
CASE 967–01
DW SUFFIX
SD SUFFIX
DT SUFFIX
M SUFFIX

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MC145488FN Summary of contents

Page 1

... MOTOROLA SEMICONDUCTOR TECHNICAL DATA Product Preview Low-Voltage CMOS Octal Transceiver With 5V-Tolerant Inputs and Outputs (3-State, Non-Inverting) 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 ...

Page 2

... MC74LCX2245 INPUTS OE T High Voltage Level Low Voltage Level High Impedance State High or Low Voltage Level and Transitions are Acceptable; For I CC reasons, Do Not Float Inputs MOTOROLA ...

Page 3

... Unit V V Output in 3–State V Note < GND < GND > Typ Max Unit 3.3 3.6 V 3.3 3 5.5 – – + ns – +85 C Min Max Unit 2 – 0.2 V 2.2 2.0 2.4 2.0 MOTOROLA ...

Page 4

... Dynamic LOW Peak Voltage (Note 5.) V OLV Dynamic LOW Valley Voltage (Note 5.) 5. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is measured in the LOW state. MOTOROLA (continued) Condition 2. 3.6V ...

Page 5

... 2.5ns, 10 1MHz 500ns Figure 3. AC Waveforms V CC DUT TEST Figure 4. Test Circuit 5 MC74LCX2245 Typical Unit 2. 2. – 0. 0.3V GND 6V OPEN R 1 GND R L SWITCH Open 6V 6V GND MOTOROLA ...

Page 6

... PL 0.010 (0.25 SEATING G K PLANE 0.13 (0.005) 0.10 (0.004) M MOTOROLA OUTLINE DIMENSIONS DW SUFFIX PLASTIC SOIC PACKAGE CASE 751D–04 ISSUE 0.010 (0.25 –T M – M SUFFIX PLASTIC SOIC EIAJ PACKAGE CASE 967–01 ...

Page 7

... MAX MIN MAX A 6.40 6.60 0.252 0.260 B 4.30 4.50 0.169 0.177 C ––– 1.20 ––– 0.047 D 0.05 0.15 0.002 0.006 F 0.50 0.75 0.020 0.030 G 0.65 BSC 0.026 BSC H 0.27 0.37 0.011 0.015 J 0.09 0.20 0.004 0.008 –W– J1 0.09 0.16 0.004 0.006 K 0.19 0.30 0.007 0.012 K1 0.19 0.25 0.007 0.010 L 6.40 BSC 0.252 BSC MOTOROLA ...

Page 8

... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...

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