SN54ABT861, SN74ABT861
10-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS199C – FEBRUARY 1991 – REVISED MAY 1997
D
D
D
D
D
D
State-of-the-Art EPIC-ΙΙB BiCMOS Design
Significantly Reduces Power Dissipation
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
High-Impedance State During Power Up
and Power Down
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
High-Drive Outputs (–32-mA IOH, 64-mA IOL)
Package Options Include Plastic
Small-Outline (DW) Package, Ceramic Chip
Carriers (FK), and Plastic (NT) and
Ceramic (JT) DIPs
SN54ABT861 . . . JT PACKAGE
SN74ABT861 . . . DW OR NT PACKAGE
(TOP VIEW)
OEBA
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
GND
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
VCC
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
OEAB
description
When VCC is between 0 and 2.1 V, the device is
in the high-impedance state during power up or
power down. However, to ensure the
high-impedance state above 2.1 V, OE should be
tied to VCC through a pullup resistor; the minimum
value of the resistor is determined by the
current-sinking capability of the driver.
A2
A1
A3
A4
A5
NC
A6
A7
A8
5
4
3
2 1 28 27 26
25
6
24
7
21
8
22
9
21
10
20
11
19
12 13 14 15 16 17 18
B3
B4
B5
NC
B6
B7
B8
A9
A10
GND
NC
OEAB
B10
B9
These devices allow noninverted data
transmission from the A bus to the B bus or from
the B bus to the A bus, depending on the logic
levels at the output-enable (OEAB and OEBA)
inputs.
OEBA
NC
VCC
B1
B2
SN54ABT861 . . . FK PACKAGE
(TOP VIEW)
The ’ABT861 are 10-bit transceivers designed for
asynchronous communication between data
buses. The control-function implementation
allows for maximum flexibility in timing.
NC – No internal connection
The SN54ABT861 is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74ABT861 is characterized for
operation from –40°C to 85°C.
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-ΙΙB is a trademark of Texas Instruments Incorporated.
Copyright 1997, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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
1
SN54ABT861, SN74ABT861
10-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS199C – FEBRUARY 1991 – REVISED MAY 1997
FUNCTION TABLE
INPUTS
OEAB
OEBA
OPERATION
L
H
A data to B bus
H
L
B data to A bus
H
H
Isolation
L
Latch A and B
(A = B)
L
logic symbol†
1
EN1
OEBA
13
OEAB
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
2
EN2
1
1
3
23
1
2
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the DW, JT, and NT packages.
logic diagram (positive logic)
OEBA
OEAB
A1
1
13
2
23
To Nine Other Channels
Pin numbers shown are for the DW, JT, and NT packages.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
B1
SN54ABT861, SN74ABT861
10-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS199C – FEBRUARY 1991 – REVISED MAY 1997
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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Voltage range applied to any output in the high or power-off state, VO . . . . . . . . . . . . . . . . . . . –0.5 V to 5.5 V
Current into any output in the low state, IO: SN54ABT861 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74ABT861 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –18 mA
Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
Package thermal impedance, θJA (see Note 2): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81°C/W
NT package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –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.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51, except for through-hole packages,
which use a trace length of zero.
recommended operating conditions (see Note 3)
SN54ABT861
MAX
MIN
MAX
4.5
5.5
4.5
5.5
VCC
VIH
Supply voltage
VIL
VI
Low-level input voltage
IOH
IOL
High-level output current
VCC
–24
Low-level output current
48
∆t/∆v
Input transition rise or fall rate
High-level input voltage
SN74ABT861
MIN
2
2
0.8
Input voltage
0
Outputs enabled
TA
Operating free-air temperature
NOTE 3: Unused pins (input or I/O) must be held high or low to prevent them from floating.
5
–55
125
–40
V
V
0.8
0
UNIT
V
VCC
–32
mA
V
64
mA
5
ns/V
85
°C
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SN54ABT861, SN74ABT861
10-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS199C – FEBRUARY 1991 – REVISED MAY 1997
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
VOH
TEST CONDITIONS
VCC = 4.5 V,
VCC = 4.5 V,
II = –18 mA
IOH = –3 mA
VCC = 5 V,
VCC = 4
4.5
5V
VOL
VCC = 4
4.5
5V
MIN
SN54ABT861
MIN
–1.2
MAX
SN74ABT861
MIN
–1.2
2.5
2.5
IOH = –3 mA
IOH = –24 mA
3
3
3
2
2
IOH = –32 mA
IOL = 48 mA
2*
A or B ports
VCC = 5
5.5
5V
V,
UNIT
V
V
2
0.55
IOL = 64 mA
0.55
0.55*
0.55
100
Control inputs
VI = VCC or GND
V
mV
±1
±1
±1
±100
±100
±100
µA
IOZPU‡
VCC = 0 to 2.1 V, VO = 0.5 V to 2.7 V,
OE = X
±50
±50
±50
µA
IOZPD‡
VCC = 2.1 V to 0, VO = 0.5 V to 2.7 V,
OE = X
±50
±50
±50
µA
IOZH§
IOZL§
VCC = 5.5 V,
VCC = 5.5 V,
VO = 2.7 V
VO = 0.5 V
50
50
50
µA
–50
–50
Ioff
VCC = 0,
VCC = 5.5 V,
VO = 5.5 V
VI or VO ≤ 4.5 V
VCC = 5.5 V,
VO = 2.5 V
Outputs high
ICEX
IO¶
ICC
A or B ports
VCC = 5.5 V,
IO = 0,
VI = VCC or GND
Data inp
inputs
ts
VCC = 5.5 V,
One input at 3.4 V,,
Other inputs at
VCC or GND
∆ICC||
Control inputs
Ci
Control inputs
Cio
A or B ports
±100
Outputs high
50
–50
–100
–225#
50
–50
–225#
–50
–50
µA
±100
µA
50
µA
–225#
mA
1
250
250
250
µA
Outputs low
24
38
38
38
mA
Outputs disabled
0.5
250
250
250
µA
Outputs enabled
1.5
1.5
1.5
Outputs disabled
1.5#
1.5#
1.5#
1.5
1.5
1.5
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
VI = 2.5 V or 0.5 V
VO = 2.5 V or 0.5 V
4.5
pF
pF
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
POST OFFICE BOX 655303
mA
10.5
* On products compliant to MIL-PRF-38535, this parameter does not apply.
† All typical values are at VCC = 5 V.
‡ This parameter is characterized, but not production tested.
§ The parameters IOZH and IOZL include the input leakage current.
¶ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
# This limit may vary among suppliers.
|| This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
4
MAX
–1.2
2.5
Vhys
II
TA = 25°C
TYP†
MAX
• DALLAS, TEXAS 75265
SN54ABT861, SN74ABT861
10-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS199C – FEBRUARY 1991 – REVISED MAY 1997
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
A or B
B or A
tPZH
tPZL
OEAB or OEBA
B or A
tPHZ
tPLZ
OEAB or OEBA
B or A
PARAMETER
VCC = 5 V,
TA = 25°C
SN54ABT861
SN74ABT861
MIN
TYP
MAX
MIN
MAX
MIN
MAX
1
3.4
4.9
1
5.3
1
1
3.2
4.4
1
5
1
5.2
4.9†
1
3.5
5
1
6
1
5.9
1
4.6
6
1
7
1
6.9
2.1
5.3
6.5
2.1
7.6
2.1
7.5
1.5
5.3
6.6
1.5
7.2
1.5
7.1
UNIT
ns
ns
ns
† This limit may vary among suppliers.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
SN54ABT861, SN74ABT861
10-BIT TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS199C – FEBRUARY 1991 – REVISED MAY 1997
PARAMETER MEASUREMENT INFORMATION
7V
S1
500 Ω
From Output
Under Test
Open
GND
CL = 50 pF
(see Note A)
500 Ω
TEST
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
7V
Open
LOAD CIRCUIT
3V
Timing Input
1.5 V
0V
tw
tsu
3V
Input
1.5 V
1.5 V
th
3V
Data Input
1.5 V
1.5 V
0V
0V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
3V
1.5 V
Input
1.5 V
0V
VOH
1.5 V
Output
1.5 V
VOL
VOH
Output
1.5 V
1.5 V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
1.5 V
0V
tPLZ
Output
Waveform 1
S1 at 7 V
(see Note B)
tPLH
tPHL
1.5 V
tPZL
tPHL
tPLH
3V
Output
Control
Output
Waveform 2
S1 at Open
(see Note B)
1.5 V
tPZH
3.5 V
VOL + 0.3 V
VOL
tPHZ
1.5 V
VOH – 0.3 V
VOH
≈0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
6
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
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)
(4/5)
(6)
SN74ABT861DW
ACTIVE
SOIC
DW
24
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT861
(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