SN54ABT823, SN74ABT823
9-BIT BUS-INTERFACE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCBS158E – JANUARY 1991 – REVISED MAY 1997
D
D
D
D
D
D
SN54ABT823 . . . JT OR W PACKAGE
SN74ABT823 . . . DB, DW, OR NT PACKAGE
(TOP VIEW)
OE
1D
2D
3D
4D
5D
6D
7D
8D
9D
CLR
GND
These 9-bit flip-flops feature 3-state outputs
designed specifically for driving highly capacitive
or relatively low-impedance loads. They are
particularly suitable for implementing wider buffer
registers, I/O ports, bidirectional bus drivers with
parity, and working registers.
With the clock-enable (CLKEN) input low, the nine
D-type edge-triggered flip-flops enter data on the
low-to-high transitions of the clock. Taking CLKEN
high disables the clock buffer, thus latching the
outputs. Taking the clear (CLR) input low causes
the nine Q outputs to go low, independently of the
clock.
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
VCC
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
9Q
CLKEN
CLK
SN54ABT823 . . . FK PACKAGE
(TOP VIEW)
5
3 2 1 28 27 26
25
6
24
7
23
8
22
9
21
4
description
1
2D
1D
OE
NC
VCC
1Q
2Q
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)
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
Typical VOLP (Output Ground Bounce) < 1 V
at VCC = 5 V, TA = 25°C
High-Impedance State During Power Up
and Power Down
High-Drive Outputs (–32-mA IOH, 64-mA IOL)
Buffered Control Inputs to Reduce
dc Loading Effects
Package Options Include Plastic
Small-Outline (DW) and Shrink
Small-Outline (DB) Packages, Ceramic Chip
Carriers (FK) and Flatpacks (W), and
Standard Plastic (NT) and Ceramic (JT)
DIPs
3D
4D
5D
NC
6D
7D
8D
10
20
11
19
12 13 14 15 16 17 18
3Q
4Q
5Q
NC
6Q
7Q
8Q
9D
CLR
GND
NC
CLK
CLKEN
9Q
D
NC – No internal connection
A buffered output-enable (OE) input can be used to place the nine outputs in either a normal logic state (high
or low logic level) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive
the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines
without need for interface or pullup components.
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.
The SN54ABT823 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74ABT823 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
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
1
SN54ABT823, SN74ABT823
9-BIT BUS-INTERFACE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCBS158E – JANUARY 1991 – REVISED MAY 1997
FUNCTION TABLE
(each flip-flop)
INPUTS
OE
D
OUTPUT
Q
CLR
CLKEN
CLK
L
L
X
X
X
L
L
H
L
↑
H
H
L
H
L
↑
L
L
L
H
H
X
X
Q0
H
X
X
X
X
Z
logic symbol†
OE
CLR
CLKEN
CLK
1D
2D
3D
4D
5D
6D
7D
8D
9D
1
11
14
13
2
EN
R
G1
1C2
23
2D
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the DB, DW, JT, NT, and W packages.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
9Q
SN54ABT823, SN74ABT823
9-BIT BUS-INTERFACE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCBS158E – JANUARY 1991 – REVISED MAY 1997
logic diagram (positive logic)
OE
CLR
CLKEN
CLK
1
11
14
R
13
C1
1D
2
23
1Q
1D
To Eight Other Channels
Pin numbers shown are for the DB, DW, JT, NT, and W packages.
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 (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: SN54ABT823 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74ABT823 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104°C/W
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. This is a stress rating only, and
functional operation of the device at these or any other conditions beyond those indicated in the “recommended operating conditions” section of
this specification 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.
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• DALLAS, TEXAS 75265
3
SN54ABT823, SN74ABT823
9-BIT BUS-INTERFACE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCBS158E – JANUARY 1991 – REVISED MAY 1997
recommended operating conditions (see Note 3)
SN54ABT823
SN74ABT823
MIN
MAX
MIN
MAX
4.5
5.5
4.5
5.5
UNIT
VCC
VIH
Supply voltage
VIL
VI
Low-level input voltage
IOH
IOL
High-level output current
VCC
–24
Low-level output current
48
64
mA
∆t/∆v
Input transition rise or fall rate
5
5
ns/V
∆t/∆VCC
TA
Power-up ramp rate
200
Operating free-air temperature
–55
High-level input voltage
2
2
0.8
Input voltage
0
V
0.8
0
VCC
–32
–40
V
V
mA
µs/V
200
125
V
85
°C
NOTE 3: Unused inputs must be held high or low to prevent them from floating.
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
Vhys
II
IOZPU‡
IOZPD‡
IOZH
IOZL
Ioff
ICEX
IO¶
VCC = 4
4.5
5V
SN54ABT823
MIN
–1.2
MAX
SN74ABT823
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*
0.55
IOL = 64 mA
0.55
0.55*
VCC = 5.5 V,
VI = VCC or GND
VCC = 0 to 2.1 V, VO = 0.5 V to 2.7 V, OE = X
VCC = 2.1 V to 0, VO = 0.5 V to 2.7 V, OE = X
VCC = 2.1 V to 5.5 V, VO = 2.7 V, OE ≥ 2 V
VCC = 2.1 V to 5.5 V, VO = 0.5 V, OE ≥ 2 V
VCC = 0,
VI or VO ≤ 4.5 V
0.55
VCC = 5.5
5 5 V,
V IO = 0,
0
VI = VCC or GND
∆ICC#
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
Ci
VI = 2.5 V or 0.5 V
VO = 2.5 V or 0.5 V
Outputs low
Outputs disabled
±1
±1
±1
µA
±50
±50
±50
µA
±50
10§
–10§
±50
10§
–10§
±50
10§
–10§
µA
±100
µA
50
µA
–180
mA
50
–50
POST OFFICE BOX 655303
V
mV
±100
Outputs high
VO = 2.5 V
Outputs high
V
V
100
VCC = 5.5 V, VO = 5.5 V
VCC = 5.5 V,
UNIT
2
50
–50
–180
–50
µA
µA
–140
–180
1
250
250
250
µA
24
0.5
38
250
38
250
38
250
mA
µA
1.5
1.5
1.5
mA
4
pF
7
pF
* 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.
§ This data sheet limit may vary among suppliers.
¶ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
# 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
ICC
Co
TA = 25°C
MIN TYP†
MAX
• DALLAS, TEXAS 75265
SN54ABT823, SN74ABT823
9-BIT BUS-INTERFACE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCBS158E – JANUARY 1991 – REVISED MAY 1997
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
VCC = 5 V,
TA = 25°C
fclock
Clock frequency
tw
Pulse duration
tsu
th
↑
Setup time before CLK↑
SN74ABT823
MIN
MAX
MIN
MAX
MIN
MAX
0
125
0
125
0
125
CLR low
5.5
5.5
5.5
CLK high
2.9
2.9
2.9
CLK low
3.8
3.8
3.8
CLR inactive
2.5
2.5
2.5
Data
2.1
2.1
2.1
2
2
2
CLKEN low
3.3
3.3
3.3
Data
1.3
1.3
1.3
CLKEN high
1
1
1
CLKEN low
2
2
2
CLKEN high
Hold time after CLK↑
↑
SN54ABT823
UNIT
MHz
ns
ns
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
fmax
tPLH
tPHL
tPHL
tPZH
tPZL
tPHZ
tPLZ
FROM
(INPUT)
TO
(OUTPUT)
CLK
Q
CLR
Q
OE
Q
OE
Q
VCC = 5 V,
TA = 25°C
SN54ABT823
MAX
MIN
MAX
SN74ABT823
MIN
TYP
125
200
2.1
4.3
5.9
2.1
8.1
2.1
6.8
2.2
4.4
6.1
2.2
7
2.2
6.7
2
4.1
7.3
2
3
6.3
4.7†
2
1
1
6.3
1
7.1
6†
2.2
4.1
2.2
6.6
2.2
2.7
4.8
5.6
6.5†
2.7
7.7
2.7
6.5†
7.5†
1.9
5
6.4
1.9
7.4
1.9
6.9
125
MIN
UNIT
MAX
125
MHz
ns
ns
ns
ns
† This data sheet limit may vary among suppliers.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
SN54ABT823, SN74ABT823
9-BIT BUS-INTERFACE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCBS158E – JANUARY 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
14-Oct-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)
5962-9450801Q3A
ACTIVE
LCCC
FK
28
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629450801Q3A
SNJ54
ABT823FK
SN74ABT823DBR
ACTIVE
SSOP
DB
24
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AB823
Samples
SN74ABT823DW
ACTIVE
SOIC
DW
24
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT823
Samples
SN74ABT823DWR
ACTIVE
SOIC
DW
24
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT823
Samples
SNJ54ABT823FK
ACTIVE
LCCC
FK
28
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629450801Q3A
SNJ54
ABT823FK
(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