INTERSIL CD54AC245

CD54AC245/3A
CD54ACT245/3A
S E M I C O N D U C T O R
COMPLETE DATA SHEET
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June 1997
Description
Octal-Bus Transceiver
Three-State, Non-Inverting
Functional Diagram
The CD54AC245/3A and CD54ACT245/3A are octal-bus
transceivers that utilize the Harris Advanced CMOS Logic
technology. They are non-inverting three-state bidirectional
tranceiver-buffers intended for two-way transmission from
“A” bus to “B” bus or “B” bus to “A” bus. The logic level
present on the direction input (DIR) determines the data
direction. When the output enable input (OE) is HIGH, the
outputs are in the high-impedance state.)
A0
A1
A2
A3
A4
The CD54AC245/3A and CD54ACT245/3A are supplied in
20 lead dual-in-line ceramic packages (F suffix).
A5
A6
ACT INPUT LOAD TABLE
A7
INPUT
UNIT LOAD (NOTE 1)
An, Bn
0.83
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
B0
B1
B2
B3
B4
B5
B6
B7
1
DIR
OE
OE
0.64
DIR
0.15
19
NOTE:
1. Unit load is ∆ICC limit specified in DC Electrical Specifications
Table, e.g., 2.4mA Max at +25oC.
Absolute Maximum Ratings
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +6V
DC Input Diode Current, IIK
For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Diode Current, IOK
For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . .±50mA
DC Output Source or Sink Current, Per Output Pin, IO
For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . . .±50mA
DC VCC or GND Current, ICC or IGND
For Up to 4 Outputs Per Device, Add ±25mA For Each
Additional Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±100mA
Power Dissipation Per Package, PD
TA = -55oC to +100oC (Package F) . . . . . . . . . . . . . . . . . . 500mW
TA = +100oC to +125oC (Package F) . . . . . . . . Derate Linearly at
8mW/ oC to 300mW
Operating Temperature Range, TA
Package Type F . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC
Storage Temperature, TSTG . . . . . . . . . . . . . . . . . . -65oC to +150oC
Lead Temperature (During Soldering)
At Distance 1/16in. ± 1/32in. (1.59mm ± 0.79mm)
From Case For 10s Max . . . . . . . . . . . . . . . . . . . . . . . . . . +265oC
Unit Inserted Into a PC Board (Min Thickness 1/16in., 1.59mm)
With Solder Contacting Lead Tips Only. . . . . . . . . . . . . . . +300oC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Recommended Operating Conditions
Operating Temperature, TA . . . . . . . . . . . . . . . . . . . -55oC to +125oC
Input Rise and Fall Slew Rate, dt/dv
at 1.5V to 3V (AC Types) . . . . . . . . . . . . . . . . . . . 0ns/V to 50ns/V
at 3.6V to 5.5V (AC Types) . . . . . . . . . . . . . . . . . 0ns/V to 20ns/V
at 4.5V to 5.5V (AC Types) . . . . . . . . . . . . . . . . . 0ns/V to 10ns/V
Supply Voltage Range, VCC
Unless Otherwise Specified, All Voltages Referenced to GND
TA = Full Package Temperature Range
CD54AC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5V to 5.5V
CD54ACT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . . 0V to VCC
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright
© Harris Corporation 1994
1
File Number
3901
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