Texas Instruments SN74LVCC3245ADBLE, SN74LVCC3245ADBR, SN74LVCC3245ADW, SN74LVCC3245ADWR, SN74LVCC3245APWLE Datasheet
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OPERATION
SN74LVCC3245A
OCTAL BUS TRANSCEIVER WITH ADJUSTABLE OUTPUT VOLTAGE
AND 3-STATE OUTPUTS
SCAS585F – NOVEMBER 1996 – REVISED AUGUST 1998
D
EPIC
(Enhanced-Performance Implanted
CMOS) Submicron Process
D
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D
Latch-Up Performance Exceeds 250 mA Per
JESD 17
D
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages
description
This 8-bit (octal) noninverting bus transceiver
contains two separate supply rails. The B port is
designed to track V
, which accepts voltages
CCB
DB, DW, OR PW PACKAGE
(TOP VIEW)
V
GND
GND
NC – No internal connection
CCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
V
CCB
NC
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
from 3 V to 5.5 V, and the A port is designed to
track V
, which operates at 2.3 V to 3.6 V . This
CCA
allows for translation from a 3.3-V to a 5-V system
environment and vice versa, or from a 2.5-V to a
3.3-V system environment and vice versa.
The SN74LVCC3245A is designed for asynchronous communication between data buses. The device
transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the
direction-control (DIR) input. The output-enable (OE
) input can be used to disable the device so the buses are
effectively isolated.
The SN74LVCC3245A is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
INPUTS
OE DIR
L L B data to A bus
L H A data to B bus
H X Isolation
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1998, Texas Instruments Incorporated
1
SN74LVCC3245A
OCTAL BUS TRANSCEIVER WITH ADJUSTABLE OUTPUT VOLTAGE
AND 3-STATE OUTPUTS
SCAS585F – NOVEMBER 1996 – REVISED AUGUST 1998
logic diagram (positive logic)
2
DIR
22
OE
3
A1
21
B1
To Seven Other Channels
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
Input voltage range, V
and V
CCA
: All A port (see Note 2) –0.5 V to V
I
All B port (see Note 1) –0.5 V to V
Except I/O ports (see Note 2) –0.5 V to V
Output voltage range, V
Input clamp current, I
Output clamp current, I
Continuous output current, I
Continuous current through V
Package thermal impedance, θ
Storage temperature range, T
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. This value is limited to 6 V maximum.
2. This value is limited to 4.6 V maximum.
3. The package thermal impedance is calculated in accordance with JESD 51.
(see Note 1): All A port –0.5 V to V
O
(VI < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IK
(VO < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OK
±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
CCA
JA
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
–0.5 V to 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CCB
All B port –0.5 V to V
, V
(see Note 3): DB package 104°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
, or GND ±100 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CCB
DW package 81°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 120°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CCA
CCB
CCA
CCA
CCB
+ 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . .
+ 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
V
High-level input voltage
V
≤ 0.1 V
V
≥ V
0.1 V
V
V
High-level input voltage
V
V
V
V
V
V
Low-level input voltage
V
V
V
V
V
V
Low-level input voltage
V
≤ 0.1 V
V
≥ V
0.1 V
V
SN74LVCC3245A
OCTAL BUS TRANSCEIVER WITH ADJUSTABLE OUTPUT VOLTAGE
AND 3-STATE OUTPUTS
SCAS585F – NOVEMBER 1996 – REVISED AUGUST 1998
recommended operating conditions (see Note 4)
V
CCAVCCB
V
V
V
V
V
V
I
OHA
I
OHB
I
OLA
I
OLB
∆t/∆v Input transition rise or fall rate 0 10 ns/V
T
NOTE 4: All unused inputs of the device must be held at the associated VCC or GND to ensure proper device operation. Refer to the TI application
Supply voltage 2.3 3.3 3.6 V
CCA
Supply voltage 3 5 5.5 V
CCB
2.3 V 3 V 1.7
IHA
IHB
ILA
ILB
Input voltage 0 V
IA
Input voltage 0 V
IB
Output voltage 0 V
OA
Output voltage 0 V
OB
High-level output current
High-level output current
Low-level output current
Low-level output current
Operating free-air temperature –40 85 °C
A
report,
p
p
p
p
OB
OA
OB
OA
Implications of Slow or Floating CMOS Inputs
≤ 0.1 V,
≤ 0.1 V,
,
OB
≥
OA
≥
OB
,
OA
, literature number SCBA004.
CCB
CCA
CCB
CCA
–
– 0.1
– 0.1
–
2.7 V 3 V 2
3 V 3.6 V 2
3.6 V 5.5 V 2
2.3 V 3 V 2
2.7 V 3 V 2
3 V 3.6 V 2
3.6 V 5.5 V 3.85
2.3 V 3 V 0.7
2.7 V 3 V 0.8
3 V 3.6 V 0.8
3.6 V 5.5 V 0.8
2.3 V 3 V 0.8
2.7 V 3 V 0.8
3 V 3.6 V 0.8
3.6 V 5.5 V 1.65
2.3 V 3 V –8
2.7 V 3 V –12
3.3 V 3 V –24
2.3 V 3.3 V –12
2.7 V
3.3 V 3 V –24
2.3 V 3 V 8
2.7 V 3 V 12
3.3 V 3 V 24
2.3 V 3.3 V 12
2.7 V
3.3 V 3 V 24
3.3 V –12
3.3 V 12
MIN NOM MAX UNIT
CCA
CCB
CCA
CCB
V
V
V
V
mA
mA
mA
mA
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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