Details, datasheet, quote on part number: SN54ALS169BFK
CategoryLogic => Counters => Binary Counters
DescriptionSynchronous 4-bit Up/down Binary Counters
CompanyTexas Instruments, Inc.
DatasheetDownload SN54ALS169BFK datasheet
Find where to buy


Features, Applications

Fully Synchronous Operation for Counting and Programming Internal Carry Look-Ahead Circuitry for Fast Counting Carry Output for n-Bit Cascading Fully Independent Clock Circuit Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs


These synchronous 4-bit up/down binary presettable counters feature an internal carry look-ahead circuitry for cascading in high-speed counting applications. 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 normally associated with asynchronous (ripple-clock) counters. A buffered clock (CLK) input triggers the four flip-flops on the rising (positive-going) edge of the clock waveform. These counters are fully programmable; that is, they may be preset to either level. The load-input circuitry allows loading with the carry-enable output of cascaded counters. Because loading is synchronous, setting up a low level at the load (LOAD) input disables the counter and causes the outputs to agree with the data inputs after the next clock pulse.

The internal carry look-ahead circuitry provides for cascading counters for n-bit synchronous application without additional gating. ENP and ENT inputs and a ripple-carry output (RCO) are instrumental in accomplishing this function. Both ENP and ENT must be low to count. The direction of the count is determined by the level of the up/down (U/D) input. When U/D is high, the counter counts up; when low, it counts down. ENT is fed forward to enable RCO. RCO, thus enabled, produces a low-level pulse while the count is zero (all inputs low) counting down or maximum (15) counting up. This low-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 the clock input. All inputs are diode clamped to minimize transmission-line effects, thereby simplifying system design. These counters feature a fully independent clock circuit. Changes at control inputs (ENP, ENT, LOAD, or U/D) 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. The SN54ALS169B and SN54AS169A are characterized for operation over the full military temperature range to 125C. The SN74ALS169B and SN74AS169A are characterized for operation from to 70C.

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.

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages.


Some Part number from the same manufacture Texas Instruments, Inc.
SN54ALS169BJ ti SN54ALS169B, Synchronous 4-Bit Up/down Binary Counters
SN54ALS174 Hex/quadruple D-type Flip-flops With Clear
SN54ALS174J ti SN54ALS174, Hex D-type Flip-flops With Clear
SN54ALS175 Hex/quadruple D-type Flip-flops With Clear
SN54ALS175J ti SN54ALS175, Quadruple D-type Flip-flops With Clear
SN54ALS191A Synchronous 4-bit Up/down Binary Counters
SN54ALS191AJ ti SN54ALS191A, Synchronous 4-Bit Up/down Binary Counter
SN54ALS191J ti SN54ALS191, Synchronous 4-Bit Up/down Binary Counters
SN54ALS193A Synchronous 4-bit Up/down Binary Counters With Dual Clock And Clear
SN54ALS193AJ ti SN54ALS193A, Synchronous 4-Bit Up/down Binary Counters With Dual Clock
SN54ALS193J ti SN54ALS193, Synchronous 4-Bit Up/down Binary Counters With Dual Clock And Clear
SN54ALS20AFK Dual 4-input Positive-nand Gates
SN54ALS20AJ ti SN54ALS20A, Dual 4-Input Positive-nand Gates
SN54ALS21AFK Dual 4-input Positive-and Gates
SN54ALS21AJ ti SN54ALS21A, Dual 4-Input Positive-and Gates

CD54HCT273 : CMOS/BiCMOS->HC/HCT Family High Speed CMOS Logic Octal D-type Flip-flop With Reset

CDC330 : General Purpose/ Clock Driver With 3-state Outputs

MC3470 : Floppy DISK Read-amplifier Systems

SN74LVT162244AZRDR : 3.3-v ABT Octal Buffers/drivers WITH 3-state Outputs

SN74ALS640BDWRE4 : 2.5-v/3.3-v 16-bit BUS Transceivers WITH 3-state Outputs

TPS71718DSET : Low Noise, High-bandwidth PSRR Low-dropout 150ma Linear Regulator

430BOOST-SENSE1 : MSP430 Capacitive Touch BoosterPack Specifications: Silicon Manufacturer: Texas Instruments ; Core Architecture: MSP430 ; Core Sub-Architecture: - ; Silicon Core Number: MSP430G2xx ; Silicon Family Name: - ; For Use With: MSP430 Launchpad ; Kit Contents: Board, MCU Sample ; Features: Capacitive touch pads, LEDs

TSB41AB3PFPG4 : Physical Layer Controllers ti TSB41AB3, Ieee 1394a Three-port Cable Transceiver/arbiter

DAC1221EG4 : Data Acquisition - Digital To Analog Converter (dac) Integrated Circuit (ics) Tube Analog and Digital; IC DAC 16BIT SER 16-QSOP Specifications: Data Interface: Serial ; Number of Bits: 16 ; Operating Temperature: -40C ~ 85C ; Package / Case: 16-SSOP (0.154", 3.90mm Width) ; Packaging: Tube ; Voltage Supply Source: Analog and Digital ; Settling Time: 1.8ms ; Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant

THS4222DGKG4 : Linear - Amplifier - Instrumentation, Op Amps, Buffer Amp Integrated Circuit (ics) Voltage Feedback Tube 14mA 2; IC OPAMP VFB R-R 120MHZ LV 8MSOP Specifications: Packaging: Tube ; Amplifier Type: Voltage Feedback ; Number of Circuits: 2 ; Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) ; Slew Rate: 990 V/s ; Gain Bandwidth Product: 120MHz ; Current - Supply: 14mA ; Current - Output / Channel: 100mA ; Voltage - Supply, Single/Dual ():

2U3824-25QDBVRG4Q1 : Pmic - Supervisor Integrated Circuit (ics) Simple Reset/Power-On Reset Tape & Reel (TR) 1; IC SUPERVISOR CIRCUIT SOT23-5 Specifications: Output: Push-Pull, Totem Pole ; Reset: Active Low ; Package / Case: SC-74A, SOT-753 ; Packaging: Tape & Reel (TR) ; Number of Voltages Monitored: 1 ; Reset Timeout: 120 ms Minimum ; Type: Simple Reset/Power-On Reset ; Voltage - Threshold: 2.25V ; Operating Temperature: -40C ~ 12

CY74FCT245TSOCE4 : 8-bit Transceiver

Same catergory

74ALVT16500 : 74ALVT16500; 2.5 V / 3.3 V 18-bit Universal Bus Transceiver (3-State);; Package: SOT364-1 (TSSOP56), SOT371-1 (SSOP56).

74F373 : 74F373; 74F374; Octal Transparent Latch (3-State); Octal D Flip-flop (3-State);; Package: SOT146-1 (DIP20), SOT163-1 (SO20), SOT339-1 (SSOP20).

74HC/HCT377 : CMOS/BiCMOS->HC/HCT Family. Octal D-type Flip-flop With Data Enable; Positive-edge Trigger.

CD74ACT163E : ti CD74ACT163, Synchronous Presettable Binary Counters With Synchronous Reset.

IDT74ALVCH16543 : Bus Oriented Circuits. 3.3v CMOS 16-bit Registered Transceiver With 3-state Outputs And Bus-hold.

MC100H680 : Bus Oriented Circuits. Bus/ttl Bus Transceiver. The is a dual supply 4bit differential ECL bus to TTL bus transceiver. It is designed to allow the system designer to no longer be limited in bus speed associated with standard TTL busses. Using a differential ECL Bus will increase the frequency of operation and increase noise immunity. Both the TTL and the ECL ports are capable of driving a bus. The ECL outputs.

SN74122N : Monostable Multivibrators. ti SN74122, Retriggerable Monostable Multivibrator.

SN74AS8003PSR : ti SN74AS8003, Dual 2-Input Positive-nand Gate. The SN74AS8003 device contains two independent 2-input positive-NAND gates. It performs the Boolean functions B in positive logic. The SN74AS8003 is characterized for operation from to 70C. FUNCTION TABLE (each gate) INPUTS OUTPUT This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Please be aware that an important notice.

SN74LS699DW : ti SN74LS699, Synchronous 4-Bit Up/down Binary Counters With Output Registers And Multiplexed 3-State Outputs.

SN74LVU04 : CMOS/BiCMOS->LV/LVQ/LVX Family->Low Voltage. Hex Inverter. EPIC TM (Enhanced-Performance Implanted CMOS) 2- Process Typical VOLP (Output Ground Bounce) V at VCC, = 25C Typical VOHV (Output VOH Undershoot) V at VCC, = 25C ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model = 200 pF, = 0) Latch-Up Performance Exceeds 250 mA Per JEDEC Standard JESD-17 Package Options.

STCCP27 : 1.8 High Speed Dual Differential Line Receivers, Compact Camera Port Decoder, I2C Control Line.

HEF4518BT-T : 4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, PDSO16. s: Counter Type: BCD/Decade Counter ; Counter Category: Synchronous ; Counter Direction: UP ; Supply Voltage: 3V, 5V, 15 ; Package Type: SOP, 3.90 MM, PLASTIC, MS-012, SOT109-1, SOP-16 ; Logic Family: CMOS, 4000/14000/40000 ; Number of Pins: 16 ; Number of Stages (Bits):.

933372780652 : 4000/14000/40000 SERIES, TRIPLE 3-INPUT NOR GATE, PDSO14. s: Gate Type: NOR ; Supply Voltage: 5V ; Logic Family: CMOS ; Inputs: 3 ; Propagation Delay: 135 ns ; Pin Count: 14 ; IC Package Type: Other, PLASTIC, SOT-108-1, SO-14.

0-C     D-L     M-R     S-Z