SN54ABT377, SN74ABT377A
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCBS156E – FEBRUARY 1991 – REVISED JANUARY 1997
D
D
D
D
SN54ABT377 . . . J OR W PACKAGE
SN74ABT377A . . . DB, DW, N, OR PW PACKAGE
(TOP VIEW)
CLKEN
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
SN54ABT377 . . . FK PACKAGE
(TOP VIEW)
description
These 8-bit positive-edge-triggered D-type
flip-flops with a clock (CLK) input are particularly
suitable for implementing buffer and storage
registers, shift registers, and pattern generators.
2D
2Q
3Q
3D
4D
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
8D
7D
7Q
6Q
6D
4Q
GND
CLK
5Q
5D
Data (D) input information that meets the setup
time requirements is transferred to the Q outputs
on the positive-going edge of the clock pulse if the
common clock-enable (CLKEN) input is low.
Clock triggering occurs at a particular voltage
level and is not directly related to the transition
time of the positive-going pulse. When the
buffered clock (CLK) input is at either the high or
low level, the D-input signal has no effect at the
output. The circuits are designed to prevent false
clocking by transitions at CLKEN.
8Q
D
State-of-the-Art EPIC-ΙΙB BiCMOS Design
Significantly Reduces Power Dissipation
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-Drive Outputs (–32-mA IOH, 64-mA IOL)
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK),
Plastic (N) and Ceramic (J) DIPs, and
Ceramic Flat (W) Package
1D
1Q
CLKEN
VCC
D
The SN54ABT377 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74ABT377A is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
(each flip-flop)
INPUTS
CLKEN
CLK
D
OUTPUT
Q
H
X
X
Q0
L
↑
H
H
L
↑
L
L
X
H or L
X
Q0
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
SN54ABT377, SN74ABT377A
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCBS156E – FEBRUARY 1991 – REVISED JANUARY 1997
logic symbol†
1
CLKEN
CLK
1D
2D
3D
4D
5D
6D
7D
8D
11
3
G1
1C2
2
2D
4
5
7
6
8
9
13
12
14
15
17
16
18
19
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
CLK
11
1
CLKEN
1D
3
1D
C1
To Seven Other Channels
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
2
1Q
SN54ABT377, SN74ABT377A
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCBS156E – FEBRUARY 1991 – REVISED JANUARY 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 (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: SN54ABT377 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
SN74ABT377A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115°C/W
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128°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)
SN54ABT377
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
SN74ABT377A
MIN
2
2
0.8
Input voltage
0
Outputs enabled
TA
Operating free-air temperature
NOTE 3: Unused inputs must be held high or low to prevent them from floating.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
0
5
–55
125
–40
UNIT
V
V
0.8
V
VCC
–32
V
mA
64
mA
5
ns/V
85
°C
3
SN54ABT377, SN74ABT377A
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCBS156E – FEBRUARY 1991 – REVISED JANUARY 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
Vhys
II
MIN
TA = 25°C
TYP†
MAX
SN54ABT377
MIN
MAX
–1.2
SN74ABT377A
MIN
–1.2
MAX
–1.2
2.5
2.5
2.5
IOH = –3 mA
IOH = –24 mA
3
3
3
2
2
IOH = –32 mA
IOL = 48 mA
2*
IOL = 64 mA
V
0.55
0.55*
0.55
100
Ioff
ICEX
IO‡
VI = VCC or GND
VI or VO ≤ 4.5 V
VCC = 5.5 V,
VCC = 5.5 V,
VO = 5.5 V
VO = 2.5 V
ICC
∆ICC§
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
±1
±100
50
–50
V
mV
±1
Outputs high
VCC = 5.5 V,, IO = 0,,
VI = VCC or GND
V
2
0.55
VCC = 5.5 V,
VCC = 0,
UNIT
50
–50
–180
–50
±1
µA
±100
µA
50
µA
–180
mA
–100
–180
Outputs high
1
250
250
250
µA
Outputs low
24
30
30
30
mA
1.5
1.5
1.5
mA
Ci
VI = 2.5 V or 0.5 V
3.5
* On products compliant to MIL-PRF-38535, this parameter does not apply.
† All typical values are at VCC = 5 V.
‡ 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.
pF
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN54ABT377
VCC = 5 V,
TA = 25°C
fclock
tw
Clock frequency
tsu
Setup time before CLK↑
th
Hold time after CLK↑
Pulse duration
150
0
150
3.3
3.3
Data high or low
2
2.5
CLKEN high or low
3
3
1.8¶
1.8¶
1.8¶
1.8¶
Data high or low
CLKEN high or low
POST OFFICE BOX 655303
MAX
0
MAX
CLK high or low
¶ This data sheet limit may vary among suppliers.
4
MIN
MIN
• DALLAS, TEXAS 75265
UNIT
MHz
ns
ns
ns
SN54ABT377, SN74ABT377A
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCBS156E – FEBRUARY 1991 – REVISED JANUARY 1997
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN74ABT377A
VCC = 5 V,
TA = 25°C
fclock
tw
Clock frequency
Pulse duration
tsu
Setup time before CLK↑
th
Hold time after CLK↑
MIN
MAX
0
150
MIN
MAX
0
150
CLK high or low
3.3
3.3
Data high or low
2
2.5
CLKEN high or low
3
3
1.8†
1.2†
1.8†
1.2†
Data high or low
CLKEN high or low
UNIT
MHz
ns
ns
ns
† This data sheet limit may vary among suppliers.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 1)
SN54ABT377
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
MIN
fmax
tPLH
tPHL
TYP
MIN
Q
UNIT
MAX
150
CLK
MAX
150
MHz
2.2
4.5
6
2.2
7
3.1
5.3
6.8
2
7.6
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 1)
SN74ABT377A
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
MIN
fmax
tPLH
tPHL
MIN
TYP
MAX
4.5
6
5.3
6.8
150
CLK
Q
2.2
2.6†
MAX
150
2.2
2.6†
UNIT
MHz
6.5
7.3
ns
† This data sheet limit may vary among suppliers.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
SN54ABT377, SN74ABT377A
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLOCK ENABLE
SCBS156E – FEBRUARY 1991 – REVISED JANUARY 1997
PARAMETER MEASUREMENT INFORMATION
500 Ω
From Output
Under Test
S1
7V
Open
GND
CL = 50 pF
(see Note A)
500 Ω
TEST
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
7V
Open
3V
LOAD CIRCUIT
Timing Input
1.5 V
0V
tw
tsu
3V
th
3V
1.5 V
Input
1.5 V
0V
Data Input
1.5 V
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
3V
1.5 V
Input
1.5 V
0V
VOH
1.5 V
Output
1.5 V
VOL
VOH
1.5 V
1.5 V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
1.5 V
1.5 V
0V
tPZL
tPLZ
Output
Waveform 1
S1 at 7 V
(see Note B)
tPLH
tPHL
Output
3V
Output
Control
tPHL
tPLH
1.5 V
Output
Waveform 2
S1 at Open
(see Note B)
1.5 V
3.5 V
VOL + 0.3 V
VOL
tPHZ
tPZH
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-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)
5962-9314801Q2A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629314801Q2A
SNJ54ABT
377FK
5962-9314801QRA
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-9314801QR
A
SNJ54ABT377J
SN74ABT377ADBR
ACTIVE
SSOP
DB
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AB377A
Samples
SN74ABT377ADW
ACTIVE
SOIC
DW
20
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT377A
Samples
SN74ABT377ADWE4
ACTIVE
SOIC
DW
20
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT377A
Samples
SN74ABT377ADWR
ACTIVE
SOIC
DW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT377A
Samples
SN74ABT377AN
ACTIVE
PDIP
N
20
20
RoHS &
Non-Green
NIPDAU
N / A for Pkg Type
-40 to 85
SN74ABT377AN
Samples
SN74ABT377ANSR
ACTIVE
SO
NS
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
ABT377A
Samples
SN74ABT377APW
ACTIVE
TSSOP
PW
20
70
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AB377A
Samples
SN74ABT377APWR
ACTIVE
TSSOP
PW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
AB377A
Samples
SNJ54ABT377FK
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629314801Q2A
SNJ54ABT
377FK
SNJ54ABT377J
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-9314801QR
A
SNJ54ABT377J
(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.
Addendum-Page 1
Samples
Samples
Samples
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
10-Jun-2022
(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