mc54hc245a Freescale Semiconductor, Inc, mc54hc245a Datasheet

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mc54hc245a

Manufacturer Part Number
mc54hc245a
Description
Octal 3-state Noninverting Bus Transceiver
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC54HC245A.pdf (7 pages)

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Octal 3-State Noninverting
Bus Transceiver
High–Performance Silicon–Gate CMOS
inputs are compatible with standard CMOS outputs; with pullup resistors,
they are compatible with LSTTL outputs.
asynchronous communication between data buses. The device has an
active–low Output Enable pin, which is used to place the I/O ports into
high–impedance states. The Direction control determines whether data
flows from A to B or from B to A.
2/97
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1997
The MC54/74HC245A is identical in pinout to the LS245. The device
The HC245A is a 3–state noninverting transceiver that is used for 2–way
OUTPUT ENABLE
Output Drive Capability: 15 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2 to 6 V
Low Input Current: 1 A
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
Chip Complexity: 308 FETs or 77 Equivalent Gates
PORT
DATA
DIRECTION
A
A1
A2
A3
A4
A5
A6
A7
A8
1
19
2
3
4
5
6
7
8
9
LOGIC DIAGRAM
PIN 10 = GND
PIN 20 = V CC
1
18
17
16
15
14
13
12
11
B1
B2
B3
B4
B5
B6
B7
B8
B
DATA
PORT
X = don’t care
Output
Enable
Control Inputs
H
L
L
Direction
REV 7
H
X
L
MC54/74HC245A
DIRECTION
20
20
FUNCTION TABLE
20
1
Data Transmitted from Bus B to Bus A
Data Transmitted from Bus A to Bus B
Buses Isolated (High–Impedance State)
1
GND
MC54HCXXXAJ
MC74HCXXXAN
MC74HCXXXADW
ORDERING INFORMATION
A4
A1
A2
A3
A5
A6
A7
A8
1
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
9
10
O
Operation
CERAMIC PACKAGE
PLASTIC PACKAGE
20
19
18
17
16
15
14
13
12
11
SOIC PACKAGE
CASE 751D–04
CASE 732–03
CASE 738–03
DW SUFFIX
i
N SUFFIX
V CC
OUTPUT ENABLE
B1
B2
B3
B4
B5
B6
B7
B8
J SUFFIX
Ceramic
Plastic
SOIC

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mc54hc245a Summary of contents

Page 1

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Octal 3-State Noninverting Bus Transceiver High–Performance Silicon–Gate CMOS The MC54/74HC245A is identical in pinout to the LS245. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. The ...

Page 2

MC54/74HC245A Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î MAXIMUM RATINGS* Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

Page 3

DC ELECTRICAL CHARACTERISTICS Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

Page 4

MC54/74HC245A t r INPUT 90 50% 10% t PLH 90% OUTPUT 50 10% t TLH Figure 1. TEST POINT OUTPUT DEVICE UNDER TEST * Includes all probe and jig capacitance Figure 3. MOTOROLA SWITCHING ...

Page 5

DATA PORT DIRECTION 19 OUTPUT ENABLE High–Speed CMOS Logic Data DL129 — Rev 6 EXPANDED LOGIC DIAGRAM MC54/74HC245A ...

Page 6

MC54/74HC245A SEATING PLANE –A– –T– SEATING PLANE –A– –B– 20X 0.010 (0.25 ...

Page 7

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 ...

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