SN54F245, SN74F245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDFS010A – MARCH 1987 – REVISED OCTOBER 1993
SN54F245 . . . J PACKAGE
SN74F245 . . . DB, DW, OR N PACKAGE
(TOP VIEW)
3-State Outputs Drive Bus Lines Directly
Package Options Include Plastic
Small-Outline (SOIC) and Shrink
Small-Outline (SSOP) Packages, Ceramic
Chip Carriers, and Plastic and Ceramic
DIPs
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
description
These octal bus transceivers are designed for
asynchronous communication between data
buses. The devices transmit data from the A bus
to the B bus or from the B bus to the A bus
depending upon 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.
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54F245 . . . FK PACKAGE
(TOP VIEW)
A2
A1
DIR
VCC
The SN74F245 is available in TI’s shrink
small-outline package (DB), which provides the
same I/O pin count and functionality of standard
small-outline packages in less than half the
printed-circuit-board area.
A3
A4
A5
A6
A7
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
B1
B2
B3
B4
B5
A8
GND
B8
B7
B6
The SN54F245 is characterized for operation over
the full military temperature range of – 55°C to
125°C. The SN74F245 is characterized for
operation from 0°C to 70°C.
OE
•
•
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
Copyright 1993, 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
2–1
SN54F245, SN74F245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDFS010A – MARCH 1987 – REVISED OCTOBER 1993
logic symbol†
OE
DIR
A1
19
1
2
logic diagram (positive logic)
DIR
G3
1
3EN1[BA]
3EN2[AB]
19
18
1
B1
A1
OE
2
2
A2
A3
A4
A5
A6
A7
A8
3
17
4
16
5
15
6
14
7
13
8
12
9
11
B2
18
B3
B1
B4
B5
B6
B7
To Seven Other Channels
B8
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Input voltage range, VI (except I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 1.2 V to 7 V
Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 30 mA to 5 mA
Voltage range applied to any output in the disabled or power-off state . . . . . . . . . . . . . . . . . . . – 0.5 V to 5.5 V
Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC
Current into any output in the low state: SN54F245 (A1 thru A8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA
SN54F245 (B1 thru B8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74F245 (A1 thru A8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 mA
SN74F245 (B1 thru B8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Operating free-air temperature range: SN54F245 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
SN74F245 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
‡ 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.
NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed.
2–2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN54F245, SN74F245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDFS010A – MARCH 1987 – REVISED OCTOBER 1993
recommended operating conditions
SN54F245
VCC
VIH
Supply voltage
VIL
IIK
Low-level input voltage
IOH
High level output current
High-level
IOL
Low level output current
Low-level
TA
Operating free-air temperature
High-level input voltage
SN74F245
MIN
NOM
MAX
MIN
NOM
MAX
4.5
5
5.5
4.5
5
5.5
2
2
UNIT
V
V
0.8
0.8
V
– 18
– 18
mA
A1 thru A8
–3
–3
B1 thru B8
– 12
– 15
A1 thru A8
20
24
B1 thru B8
48
64
Input clamp current
– 55
125
0
70
mA
mA
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
VCC = 4.5 V,
A1 thru A8
VOH
5V
VCC = 4
4.5
IIL‡
IOS§
II = – 18 mA
IOH = – 1 mA
IOH = – 3 mA
IOH = – 12 mA
3.4
2.5
3.4
2.4
3.3
2.4
3.3
2
3.2
A1 thru A8
VCC = 4
4.5
5V
IOL = 20 mA
IOL = 24 mA
0.3
0.5
VCC = 4
4.5
5V
IOL = 48 mA
IOL = 64 mA
0.38
0.55
5V
VCC = 5
5.5
VI = 5.5 V
VI = 7 V
VCC = 5
5.5
5V
V,
VI = 2
2.7
7V
VCC = 5
5.5
5V
V,
VI = 0
0.5
5V
VCC = 5
5.5
5V
V,
VO = 0
A and B
DIR, OE
A and B
DIR, OE
A1 thru A8
B1 thru B8
IOH = – 15 mA
IOH = – 1 mA to – 3 mA
2
3.1
0.35
0.5
0.42
0.55
1
1
0.1
0.1
70
70
20
20
– 0.65
– 0.65
– 1.2
– 1.2
– 60
– 150
– 60
– 150
– 100
– 225
– 100
– 225
70
90
70
90
Outputs low
95
120
95
120
Outputs disabled
85
110
85
† All typical values are at VCC = 5 V, TA = 25°C.
‡ For I/O ports, the parameters IIH and IIL include the off-state output current.
§ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
110
VCC = 5.5 V
POST OFFICE BOX 655303
V
2.7
Outputs high
ICC
UNIT
V
VCC = 4.75 V,
DIR, OE
– 1.2
2.5
Any output
A and B
SN74F245
TYP†
MAX
MIN
– 1.2
VCC = 4
4.5
5V
B1 thru B8
IIH‡
MIN
B1 thru B8
VOL
II
SN54F245
TYP†
MAX
TEST CONDITIONS
• DALLAS, TEXAS 75265
V
mA
µA
mA
mA
mA
2–3
SN54F245, SN74F245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDFS010A – MARCH 1987 – REVISED OCTOBER 1993
switching characteristics (see Note 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
CL = 50 pF,
RL = 500 Ω,
TA = 25°C
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 Ω,
TA = MIN to MAX†
′F245
tPLH
tPHL
A or B
B or A
tPZH
tPZL
OE
A or B
tPHZ
tPLZ
OE
A or B
SN54F245
SN74F245
MIN
TYP
MAX
MIN
MAX
MIN
MAX
1.7
3.8
6
1.2
7.5
1.7
7
1.7
4.2
6
1.2
7.5
1.7
7
2.2
4.9
7
1.7
9
2.2
8
2.7
5.6
8
2.2
10
2.7
9
2.2
4.6
6.5
1.7
9
2.2
7.5
1.2
4.6
6.5
1.2
10
1.2
7.5
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 2: Load circuits and waveforms are shown in Section 1.
2–4
POST OFFICE BOX 655303
UNIT
• DALLAS, TEXAS 75265
ns
ns
ns
PACKAGE OPTION ADDENDUM
www.ti.com
10-Jun-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
85511012A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
85511012A
SNJ54F
245FK
8551101RA
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
8551101RA
SNJ54F245J
Samples
8551101SA
ACTIVE
CFP
W
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
8551101SA
SNJ54F245W
Samples
JM38510/34803B2A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
JM38510/
34803B2A
Samples
JM38510/34803BRA
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
JM38510/
34803BRA
Samples
JM38510/34803BSA
ACTIVE
CFP
W
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
JM38510/
34803BSA
Samples
M38510/34803B2A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
JM38510/
34803B2A
Samples
M38510/34803BRA
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
JM38510/
34803BRA
Samples
M38510/34803BSA
ACTIVE
CFP
W
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
JM38510/
34803BSA
Samples
SN54F245J
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
SN54F245J
Samples
SN74F245DBR
ACTIVE
SSOP
DB
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
F245
Samples
SN74F245DW
ACTIVE
SOIC
DW
20
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
F245
Samples
SN74F245DWR
ACTIVE
SOIC
DW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
F245
Samples
SN74F245N
ACTIVE
PDIP
N
20
20
RoHS &
Non-Green
NIPDAU
N / A for Pkg Type
0 to 70
SN74F245N
Samples
SN74F245NE4
ACTIVE
PDIP
N
20
20
RoHS &
Non-Green
NIPDAU
N / A for Pkg Type
0 to 70
SN74F245N
Samples
SN74F245NSR
ACTIVE
SO
NS
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
74F245
Samples
SNJ54F245FK
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
85511012A
SNJ54F
Samples
Addendum-Page 1
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
10-Jun-2022
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
245FK
SNJ54F245J
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
8551101RA
SNJ54F245J
Samples
SNJ54F245W
ACTIVE
CFP
W
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
8551101SA
SNJ54F245W
Samples
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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