Product Information

74HC161DB,112

74HC161DB,112 electronic component of Nexperia

Datasheet
NXP Semiconductors Counter ICs SYNC 4-BIT BINARY
Manufacturer: Nexperia
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



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N/A

Obsolete

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0 - WHS 1

MOQ : 1092
Multiples : 1092

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74HC161DB,112
Nexperia

1092 : USD 0.4428
3276 : USD 0.4212
10920 : USD 0.4149
25116 : USD 0.4022
50232 : USD 0.3895
N/A

Obsolete

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Manufacturer
Product Category
RoHS - XON
Icon ROHS
Counter Type
Logic Family
Number of Bits
Counting Method
Operating Supply Voltage
Operating Temperature Range
Mounting Style
Package / Case
Packaging
Minimum Operating Temperature
Maximum Operating Temperature
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Cnhts
Hts Code
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Taric
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Additional Infomation About Product

74HC161 Presettable synchronous 4-bit binary counter asynchronous reset Rev. 5 16 March 2021 Product data sheet 1. General description The 74HC161 is a synchronous presettable binary counter with an internal look-head carry. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive- going edge of the clock (CP). The outputs (Q0 to Q3) of the counters may be preset HIGH or LOW. A LOW at the parallel enable input (PE) disables the counting action and causes the data at the data inputs (D0 to D3) to be loaded into the counter on the positive-going edge of the clock. Preset takes place regardless of the levels at count enable inputs (CEP and CET). A LOW at the master reset input (MR) sets Q0 to Q3 LOW regardless of the levels at input pins CP, PE, CET and CEP (thus providing an asynchronous clear function). The look-ahead carry simplifies serial cascading of the counters. Both CEP and CET must be HIGH to count. The CET input is fed forward to enable the terminal count output (TC). The TC output thus enabled will produce a HIGH output pulse of a duration approximately equal to a HIGH output of Q0. This pulse can be used to enable the next cascaded stage. The maximum clock frequency for the cascaded counters is determined by the CP to TC propagation delay and CEP to CP set-up time, according to the following formula: Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V . CC 2. Features and benefits Wide supply voltage range from 2.0 V to 6.0 V CMOS low power dissipation High noise immunity Latch-up performance exceeds 100 mA per JESD 78 Class II Level B Complies with JEDEC standards: JESD8C (2.7 V to 3.6 V) JESD7A (2.0 V to 6.0 V) CMOS input levels Synchronous counting and loading 2 count enable inputs for n-bit cascading Asynchronous reset Positive-edge triggered clock ESD protection: HBM JESD22-A114F exceeds 2000 V MM JESD22-A115-A exceeds 200 V Specified from -40 C to +85 C and -40 C to +125 CNexperia 74HC161 Presettable synchronous 4-bit binary counter asynchronous reset 3. Ordering information Table 1. Ordering information Type number Package Temperature range Name Description Version 74HC161D -40 C to +125 C SO16 plastic small outline package 16 leads body width 3.9 mm SOT109-1 74HC161PW -40 C to +125 C TSSOP16 plastic thin shrink small outline package 16 leads SOT403-1 body width 4.4 mm 4. Functional diagram 1 CTR4 R 9 M1 15 7 G3 10 TC G4 2 14 3 D0 Q0 C2/1,3,4+ 4 D1 Q1 13 3 14 1,2D 5 D2 Q2 12 4 13 6 D3 Q3 11 5 12 9 PE 11 6 CEP CET CP MR 15 4 CT = 15 7 10 2 1 mna905 mna906 Fig. 1. Logic symbol Fig. 2. IEC logic symbol 3 4 5 6 D0 D1 D2 D3 PE PARALLEL LOAD 9 CIRCUITRY CET 10 TC 15 CEP 7 BINARY CP 2 COUNTER MR 1 Q0 Q1 Q2 Q3 mna907 14 13 12 11 Fig. 3. Functional diagram 74HC161 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2021. All rights reserved Product data sheet Rev. 5 16 March 2021 2 / 17

HS Compliance

Tariff Desc

8542.39.23 No ..Linear/analogue and peripheral integrated circuits, timers, voltage regulators, A/D and D/A converters, telecommunication and modem integrated circuits, other than board level products Free

Electronic integrated circuits- Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits

Nexperia may also be referenced as

Nexperia
NEXPERIA USA INC
Nexperia USA Inc.

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