SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
D
D
D
D
D
Wide Operating Voltage Range of 2 V to 6 V
Outputs Can Drive Up To 10 LSTTL Loads
Low Power Consumption, 80-µA Max ICC
Typical tpd = 14 ns
±4-mA Output Drive at 5 V
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
SN54HC161 . . . FK PACKAGE
(TOP VIEW)
VCC
RCO
QA
QB
QC
QD
ENT
LOAD
A
B
NC
C
D
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
QA
QB
NC
QC
QD
ENP
GND
NC
LOAD
ENT
CLR
CLK
A
B
C
D
ENP
GND
Low Input Current of 1 µA Max
Internal Look-Ahead for Fast Counting
Carry Output for n-Bit Cascading
Synchronous Counting
Synchronously Programmable
CLK
CLR
NC
VCC
RCO
SN54HC161 . . . J OR W PACKAGE
SN74HC161 . . . D, N, NS, OR PW PACKAGE
(TOP VIEW)
D
D
D
D
D
NC − No internal connection
description/ordering information
These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed
counting designs. The ’HC161 devices are 4-bit binary counters. Synchronous operation is provided by having
all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed
by the count-enable (ENP, ENT) inputs and internal gating. This mode of operation eliminates the output
counting spikes that are normally associated with synchronous (ripple-clock) counters. A buffered clock (CLK)
input triggers the four flip-flops on the rising (positive-going) edge of the clock waveform.
ORDERING INFORMATION
PACKAGE†
TA
PDIP − N
SOIC − D
−40°C to 85°C
SOP − NS
TSSOP − PW
−55°C
−55
C to 125
125°C
C
ORDERABLE
PART NUMBER
Tube of 25
SN74HC161N
Tube of 40
SN74HC161D
Reel of 2500
SN74HC161DR
Reel of 250
SN74HC161DT
Reel of 2000
SN74HC161NSR
Tube of 90
SN74HC161PW
Reel of 2000
SN74HC161PWR
TOP-SIDE
MARKING
SN74HC161N
HC161
HC161
HC161
Reel of 250
SN74HC161PWT
CDIP − J
Tube of 25
SNJ54HC161J
SNJ54HC161J
CFP − W
Tube of 150
SNJ54HC161W
SNJ54HC161W
LCCC − FK
Tube of 55
SNJ54HC161FK
SNJ54HC161FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
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.
Copyright 2003, Texas Instruments Incorporated
!"# $"%&! '#(
'"! ! $#!! $# )# # #*
"#
'' +,( '"! $!#- '# #!#&, !&"'#
#- && $##(
$'"! !$& .
/0121 && $## # ##'
" )#+# #'( && )# $'"! $'"!
$!#- '# #!#&, !&"'# #- && $##(
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
description/ordering information (continued)
These counters are fully programmable; that is, they can be preset to any number between 0 and 9 or 15. As
presetting is synchronous, setting up a low level at the load input disables the counter and causes the outputs
to agree with the setup data after the next clock pulse, regardless of the levels of the enable inputs.
The clear function for the ’HC161 devices is asynchronous. A low level at the clear (CLR) input sets all four of
the flip-flop outputs low, regardless of the levels of the CLK, load (LOAD), or enable inputs.
The carry look-ahead circuitry provides for cascading counters for n-bit synchronous applications without
additional gating. Instrumental in accomplishing this function are ENP, ENT, and a ripple-carry output (RCO).
Both ENP and ENT must be high to count, and ENT is fed forward to enable RCO. Enabling RCO produces a
high-level pulse while the count is maximum (9 or 15 with QA high). This high-level overflow ripple-carry pulse
can be used to enable successive cascaded stages. Transitions at ENP or ENT are allowed, regardless of the
level of CLK.
These counters feature a fully independent clock circuit. Changes at control inputs (ENP, ENT, or LOAD) that
modify the operating mode have no effect on the contents of the counter until clocking occurs. The function of
the counter (whether enabled, disabled, loading, or counting) is dictated solely by the conditions meeting the
stable setup and hold times.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
logic diagram (positive logic)
LOAD
ENT
ENP
9
10
15
LD†
7
RCO
CK†
CLK
CLR
A
B
C
D
2
1
CK
LD
R
M1
G2
1, 2T/1C3
G4
3D
4R
3
M1
G2
1, 2T/1C3
G4
3D
4R
4
M1
G2
1, 2T/1C3
G4
3D
4R
5
M1
G2
1, 2T/1C3
G4
3D
4R
6
14
13
12
11
QA
QB
QC
QD
† For simplicity, routing of complementary signals LD and CK is not shown on this overall logic diagram. The uses of these signals are shown
on the logic diagram of the D/T flip-flops.
Pin numbers shown are for the D, J, N, NS, PW, and W packages.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
logic symbol, each D/T flip-flop
LD (Load)
M1
TE (Toggle Enable)
G2
CK (Clock)
1, 2T/1C3
G4
D (Inverted Data)
3D
R (Inverted Reset)
4R
Q (Output)
logic diagram, each D/T flip-flop (positive logic)
CK
LD
TE
LD†
TG
TG
LD†
Q
TG
TG
CK†
D
TG
CK†
R
† The origins of LD and CK are shown in the logic diagram of the overall device.
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
CK†
TG
CK†
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
typical clear, preset, count, and inhibit sequence
The following sequence is illustrated below:
1. Clear outputs to zero (asynchronous)
2. Preset to binary 12
3. Count to 13, 14, 15, 0, 1, and 2
4. Inhibit
CLR
LOAD
A
Data
Inputs
B
C
D
CLK
ENP
ENT
QA
Data
Outputs
QB
QC
QD
RCO
12
13
14
15
0
1
Count
2
Inhibit
Sync Preset
Clear
Async
Clear
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°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 voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
SN54HC161
VCC
VIH
Supply voltage
High-level input voltage
VCC = 2 V
VCC = 4.5 V
VCC = 6 V
VCC = 2 V
VIL
VI
VO
∆t/∆v‡
Low-level input voltage
MIN
NOM
MAX
2
5
6
MIN
NOM
MAX
2
5
6
1.5
1.5
3.15
3.15
4.2
4.2
VCC = 4.5 V
VCC = 6 V
Input voltage
0
Output voltage
0
Input transition rise/fall time
SN74HC161
VCC = 2 V
VCC = 4.5 V
VCC = 6 V
0.5
1.35
1.35
1.8
1.8
0
0
V
V
0.5
VCC
VCC
UNIT
VCC
VCC
1000
1000
500
500
400
400
V
V
V
ns
TA
Operating free-air temperature
−55
125
−40
85
°C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
‡ If this device is used in the threshold region (from VILmax = 0.5 V to VIHmin = 1.5 V), there is a potential to go into the wrong state from induced
grounding, causing double clocking. Operating with the inputs at tt = 1000 ns and VCC = 2 V does not damage the device; however, functionally,
the CLK inputs are not ensured while in the shift, count, or toggle operating modes.
6
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
IOH = −20 µA
VOH
IOL = 20 µA
VOL
II
ICC
VI = VCC or 0
VI = VCC or 0,
TA = 25°C
TYP
MAX
MIN
MAX
SN74HC161
MIN
1.9
1.998
1.9
1.9
4.4
4.499
4.4
4.4
6V
5.9
5.999
5.9
5.9
4.5 V
3.98
4.3
3.7
3.84
6V
5.48
5.8
5.2
MAX
UNIT
V
5.34
2V
0.002
0.1
0.1
0.1
4.5 V
0.001
0.1
0.1
0.1
6V
0.001
0.1
0.1
0.1
4.5 V
0.17
0.26
0.4
0.33
6V
0.15
0.26
0.4
0.33
6V
±0.1
±100
±1000
±1000
nA
8
160
80
µA
3
10
10
10
pF
IO = 0
6V
Ci
SN54HC161
2V
VI = VIH or VIL
IOL = 4 mA
IOL = 5.2 mA
MIN
4.5 V
VI = VIH or VIL
IOH = −4 mA
IOH = −5.2 mA
VCC
2 V to 6 V
V
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
fclock
Clock frequency
CLK high or low
tw
Pulse duration
CLR low
A, B, C, or D
LOAD low
tsu
Setup time before CLK↑
ENP, ENT
CLR inactive
th
Hold time, all synchronous inputs after CLK
CLK↑
POST OFFICE BOX 655303
TA = 25°C
MIN
MAX
SN54HC161
MIN
MAX
SN74HC161
MIN
MAX
2V
6
4.2
5
4.5 V
31
21
25
6V
36
25
29
2V
80
120
100
4.5 V
16
24
20
6V
14
20
17
2V
80
120
100
4.5 V
16
24
20
6V
14
20
17
2V
150
225
190
4.5 V
30
45
38
6V
26
38
32
2V
135
205
170
4.5 V
27
41
34
6V
23
35
29
2V
170
255
215
4.5 V
34
51
43
6V
29
43
37
2V
125
190
155
4.5 V
25
38
31
6V
21
32
26
2V
0
0
0
4.5 V
0
0
0
6V
0
0
0
• DALLAS, TEXAS 75265
UNIT
MHz
ns
ns
ns
7
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
fmax
RCO
CLK
tpd
Any Q
ENT
RCO
Any Q
tPHL
CLR
RCO
tt
Any
VCC
MIN
TA = 25°C
TYP
MAX
SN54HC161
MIN
MAX
SN74HC161
MIN
2V
6
14
4.2
5
4.5 V
31
40
21
25
6V
36
44
25
29
MAX
UNIT
MHz
2V
83
215
325
270
4.5 V
24
43
65
54
6V
20
37
55
46
2V
80
205
310
255
4.5 V
25
41
62
51
6V
21
35
53
43
2V
62
195
295
245
4.5 V
17
39
59
49
6V
14
33
50
42
2V
105
210
315
265
4.5 V
21
42
63
53
6V
18
36
54
45
2V
110
220
330
275
4.5 V
22
44
66
55
6V
19
37
56
47
2V
38
75
110
95
4.5 V
8
15
22
19
6V
6
13
19
16
ns
ns
ns
operating characteristics, TA = 25°C
PARAMETER
Cpd
8
TEST CONDITIONS
Power dissipation capacitance
No load
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TYP
60
UNIT
pF
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
VCC
High-Level
Pulse
Test
Point
50%
50%
0V
tw
CL = 50 pF
(see Note A)
VCC
Low-Level
Pulse
50%
50%
0V
LOAD CIRCUIT
VOLTAGE WAVEFORMS
PULSE DURATIONS
Input
VCC
50%
50%
0V
tPLH
Reference
Input
VCC
50%
In-Phase
Output
50%
10%
0V
tsu
Data
Input 50%
10%
90%
tr
tPHL
VCC
50%
10% 0 V
90%
90%
tr
th
90%
tPHL
Out-of-Phase
Output
90%
VOLTAGE WAVEFORMS
SETUP AND HOLD AND INPUT RISE AND FALL TIMES
tPLH
50%
10%
tf
tf
VOH
50%
10%
VOL
tf
50%
10%
90%
VOH
VOL
tr
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
NOTES: A. CL includes probe and test-fixture capacitance.
B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns.
C. For clock inputs, fmax is measured when the input duty cycle is 50%.
D. The outputs are measured one at a time with one input transition per measurement.
E. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
9
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
APPLICATION INFORMATION
n-bit synchronous counters
This application demonstrates how the look-ahead carry circuit can be used to implement a high-speed n-bit
counter. The ’HC161 devices count in binary. Virtually any count mode (modulo-N, N1-to-N2, N1-to-maximum)
can be used with this fast look-ahead circuit.
The application circuit shown in Figure 2 is not valid for clock frequencies above 18 MHz (at 25°C and
4.5-V VCC). The reason for this is that there is a glitch that is produced on the second stage’s RCO and every
succeeding stage’s RCO. This glitch is common to all HC vendors that Texas Instruments has evaluated, in
addition to the bipolar equivalents (LS, ALS, AS).
10
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
APPLICATION INFORMATION
LSB
CTR
CT=0
M1
3CT=MAX
G3
CLR
Clear (L)
LOAD
ENT
Count (H)/
Disable (L)
ENP
CLK
RCO
G4
C5/2,3,4+
Load (L)
A
1,5D [1]
QA
Count (H)/
Disable (L)
B
[2]
QB
C
[3]
QC
Clock
D
[4]
QD
CTR
CT=0
M1
3CT=MAX
G3
CLR
LOAD
ENT
ENP
CLK
RCO
G4
C5/2,3,4+
A
1,5D [1]
QA
B
[2]
QB
C
[3]
QC
D
[4]
QD
CTR
CT=0
M1
3CT=MAX
G3
CLR
LOAD
ENT
ENP
CLK
RCO
G4
C5/2,3,4+
A
1,5D [1]
QA
B
[2]
QB
C
[3]
QC
D
[4]
QD
CTR
CT=0
M1
3CT=MAX
G3
CLR
LOAD
ENT
ENP
CLK
RCO
G4
C5/2,3,4+
A
1,5D [1]
QA
B
[2]
QB
C
[3]
QC
D
[4]
QD
To More−Significant Stages
Figure 2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
11
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
APPLICATION INFORMATION
The glitch on RCO is caused because the propagation delay of the rising edge of QA of the second stage is
shorter than the propagation delay of the falling edge of ENT. RCO is the product of ENT, QA, QB, QC, and QD
(ENT × QA × QB × QC × QD). The resulting glitch is about 7−12 ns in duration. Figure 3 shows the condition in
which the glitch occurs. For simplicity, only two stages are being considered, but the results can be applied to
other stages. QB, QC, and QD of the first and second stage are at logic one, and QA of both stages are at logic
zero (1110 1110) after the first clock pulse. On the rising edge of the second clock pulse, QA and RCO of the
first stage go high. On the rising edge of the third clock pulse, QA and RCO of the first stage return to a low level,
and QA of the second stage goes to a high level. At this time, the glitch on RCO of the second stage appears
because of the race condition inside the chip.
1
2
3
4
5
CLK
ENT1
QB1, QC1, QD1
QA1
RCO1, ENT2
QB2, QC2, QD2
QA2
RCO2
Glitch (7−12 ns)
Figure 3
The glitch causes a problem in the next stage (stage three) if the glitch is still present when the next rising clock
edge appears (clock pulse 4). To ensure that this does not happen, the clock frequency must be less than the
inverse of the sum of the clock-to-RCO propagation delay and the glitch duration (tg). In other words,
fmax = 1/(tpd CLK-to-RCO + tg). For example, at 25°C at 4.5-V VCC, the clock-to-RCO propagation delay is
43 ns and the maximum duration of the glitch is 12 ns. Therefore, the maximum clock frequency that the
cascaded counters can use is 18 MHz. The following tables contain the fclock, tw, and fmax specifications for
applications that use more than two ’HC161 devices cascaded together.
12
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SCLS297D − JANUARY 1996 − REVISED SEPTEMBER 2003
APPLICATION INFORMATION
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
fclock
Clock frequency
TA = 25°C
MIN
MAX
Pulse duration, CLK high or low
MIN
MAX
SN74HC161
MIN
MAX
2V
3.6
2.5
2.9
4.5 V
18
12
14
6V
tw
SN54HC161
21
14
UNIT
MHz
17
2V
140
200
170
4.5 V
28
40
36
6V
24
36
30
ns
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Note 4)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
fmax
VCC
TA = 25°C
MIN
MAX
SN54HC161
MIN
MAX
SN74HC161
MIN
2V
3.6
2.5
2.9
4.5 V
18
12
14
6V
21
14
17
MAX
UNIT
MHz
NOTE 4: These limits apply only to applications that use more than two ’HC161 devices cascaded together.
If the ’HC161 devices are used as a single unit, or only two cascaded together, then the maximum clock
frequency that the device can use is not limited because of the glitch. In these situations, the device can be
operated at the maximum specifications.
A glitch can appear on RCO of a single ’HC161 device, depending on the relationship of ENT to CLK. Any
application that uses RCO to drive any input except an ENT of another cascaded ’HC161 device must take this
into consideration.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
13
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)
5962-8407501VEA
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-8407501VE
A
SNV54HC161J
84075012A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
84075012A
SNJ54HC
161FK
8407501EA
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
8407501EA
SNJ54HC161J
Samples
8407501FA
ACTIVE
CFP
W
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
8407501FA
SNJ54HC161W
Samples
JM38510/66302BEA
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
JM38510/
66302BEA
Samples
M38510/66302BEA
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
JM38510/
66302BEA
Samples
SN54HC161J
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
SN54HC161J
Samples
SN74HC161D
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
HC161
Samples
SN74HC161DR
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
HC161
Samples
SN74HC161DRE4
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
HC161
Samples
SN74HC161DT
ACTIVE
SOIC
D
16
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
HC161
Samples
SN74HC161N
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
N / A for Pkg Type
-40 to 85
SN74HC161N
Samples
SN74HC161NSR
ACTIVE
SO
NS
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
HC161
Samples
SN74HC161PW
ACTIVE
TSSOP
PW
16
90
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
HC161
Samples
SN74HC161PWR
ACTIVE
TSSOP
PW
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
HC161
Samples
SN74HC161PWT
ACTIVE
TSSOP
PW
16
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
HC161
Samples
SNJ54HC161FK
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
84075012A
SNJ54HC
161FK
Addendum-Page 1
Samples
Samples
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
14-Oct-2022
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
(3)
Device Marking
Samples
(4/5)
(6)
SNJ54HC161J
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
8407501EA
SNJ54HC161J
Samples
SNJ54HC161W
ACTIVE
CFP
W
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
8407501FA
SNJ54HC161W
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