TS556CN - Dual 2.7MHz CMOS Timer | STMicroelectronics
N.º da peça: TS556CN ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
TS556CN Visão geral
A CMOS timer is a programmable time-delay and oscillator integrated circuit. It belongs to the timer/oscillator category, within clock and timing ICs and broader semiconductor devices. Each timer section uses external resistors and capacitors to set delay or oscillation behavior, making this device useful where conventional 555-type timing, pulse generation, delay, and repetitive switching are required without a microcontroller.
Key verified attributes include dual-timer construction, operation from 2 V to 16 V, a high maximum astable frequency of 2.7 MHz, and pin-to-pin and functional compatibility with bipolar NE556 devices. Reduced supply-current spikes during output transitions can permit lower decoupling capacitance than a conventional bipolar implementation. The stated 180 µA typical current at 3 V supports battery-conscious designs, although load and switching conditions must be checked against the datasheet.
The TS556CN uses CMOS circuitry to combine low quiescent consumption with higher timer frequency than the bipolar NE556 comparison cited in the search data. That comparison reports 2.7 MHz maximum frequency for TS556 versus 0.1 MHz for NE556. However, actual operating frequency depends on timing resistors, capacitors, propagation delays, output loading, and supply voltage, so high-frequency layouts require short traces and careful grounding.
Typical uses include LED and lamp flashers, pulse generators, delay stages, debounce or retriggerable timing networks, simple oscillators, industrial control timers, and low-power instrumentation. The 14-DIP through-hole package favors prototypes, educational designs, repairable assemblies, and human-built electronics where a socketed or perforated-board implementation is practical.
Design with the two timer sections independently unless datasheet pin behavior explicitly permits shared connections. Place timing components close to their associated pins, bypass the supply near the device, and account for output-current limits and threshold tolerances. Because the web evidence provides conflicting voltage-range wording, use the 2 V to 16 V range for this listing and verify absolute maximum and operating limits before releasing production hardware.
This page combines verified distributor and datasheet findings, package-aware replacement analysis, and practical timer-circuit guidance. It also distinguishes documented TS556CN data from specifications that were not supplied, avoiding unsupported claims about pricing, lifecycle, compliance, or exact pin assignments.
Alternativas drop-in para TS556CN — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com TS556CN (mesmo formato e footprint) — diferindo em Package, Timer Configuration, Mounting Type, Typical Supply Current at 5 V.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TS556ID
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
Consulte o preço
Ver ficha técnica →TS556CD
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →NE556P
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TS556CN Especificações
| Timer Configuration | Dual timer |
| Timer Type | 555 Type, Timer/Oscillator |
| Technology | CMOS |
| Supply Voltage Range | 2 V to 16 V |
| Maximum Astable Frequency | 2.7 MHz |
| Typical Supply Current | 180 µA at VCC = 3 V |
| Operating Modes | Monostable and astable |
| NE556 Compatibility | Pin-to-pin and functionally compatible |
| Output Transition Behavior | Reduced supply-current spikes |
| Encapsulamento | 14-DIP, 0.300 inch (7.62 mm) width |
| Contagem de pinos | 14 pins |
| Tipo de montagem | Through-hole |
| Faixa de temperatura de operação | 0°C to 70°C |
| Supply Packaging | Tube |
Guia de Configuração de Pinos do TS556CN 14-dip, 0.300 inch (7.62 mm) width
Configuração de pinos para TS556CN (pacote 14-dip, 0.300 inch (7.62 mm) width). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para TS556CN.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TS556CN é adequado para 6 aplicaçãos: Dual Delay and Pulse Generator, Astable Oscillator and Tone Generator, LED Flasher and Indicator Driver, Industrial Debounce and Retrigger Control, Low-Power Instrumentation Timing, Switch-Mode and Power-Control Delay.
Dual Delay and Pulse Generator
The TS556CN fits delay-and-pulse designs because it contains two 555-compatible timer sections and supports monostable operation from a verified 2 V to 16 V supply. Each section can establish its own delay using external resistance and capacitance, allowing one IC to replace two discrete timer packages in a prototype or industrial control board. The 180 µA typical supply current at 3 V also suits low-duty-cycle battery-powered equipment. Verify trigger polarity, output timing tolerance, and output-load limits in the manufacturer datasheet before production.
Recomendado
Astable Oscillator and Tone Generator
The TS556CN is suitable for astable oscillator or tone-generation circuits because its verified maximum astable frequency is 2.7 MHz. One timer can generate a repetitive waveform while the second can provide modulation, gating, or a separate delayed function. At lower audible or instrumentation frequencies, external resistor and capacitor tolerances normally dominate accuracy. For operation near the device limit, keep timing nodes compact, provide a low-impedance supply bypass, and confirm timing and output behavior from the datasheet.
Recomendado
LED Flasher and Indicator Driver
The dual TS556CN can implement two independent flashing rates or an alternating LED indication circuit, reducing the IC count compared with two single timers. Its low-power CMOS operation is useful in battery-powered indicators, while the verified 14-DIP package is easy to prototype and socket. The LED current source must be sized so total demand remains within the applicable output rating; the provided evidence does not state that limit. Include a current-limiting resistor and verify polarity at startup.
Recomendado
Industrial Debounce and Retrigger Control
The TS556CN can form a monostable debounce or retriggerable control stage for switches, sensor interfaces, and actuator timing. Two independent timer sections allow separate debounce and output-delay functions while preserving a conventional 555-style architecture. The CMOS device's 180 µA typical consumption at 3 V helps limit idle drain in compact control equipment. Validate switch bounce duration, trigger recovery time, and output load; the supplied data does not define these timing thresholds.
Recomendado
Low-Power Instrumentation Timing
The TS556CN is suitable for low-power test and measurement modules that need one-shot delays, sample windows, or repetitive triggers without a microcontroller. Its dual timer arrangement reduces component count, while the 2 V to 16 V listed range permits integration across multiple low-voltage rails. The through-hole 14-DIP package favors instrument prototypes and repairable assemblies. At the verified 2.7 MHz maximum, use short timing paths and stable grounding to minimize parasitic effects and supply sensitivity.
Recomendado
Switch-Mode and Power-Control Delay
The TS556CN can supervise start-up sequencing, create a controlled enable delay, or inject a repeatable blanking interval in a power-control circuit. Its low quiescent demand is useful when the control circuit spends substantial time idle, and the dual architecture can coordinate two timing events. The exact output rating and propagation behavior were not supplied, so use the datasheet to verify suitability for gate-drive or power-stage loads. Keep high-current switching loops separate from timer and reference nodes.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TS556CN — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TS556ID | TS556CD | NE556P |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments |
| Package | 14-DIP, 0.300 inch (7.62 mm) width | DIP-14 | DIP-14 | DIP-14 |
| Timer Configuration | Dual timer | Dual timer | Dual timer | Dual timer |
| Technology | CMOS | CMOS | CMOS | Bipolar |
Principais diferenciais
- Higher maximum astable frequency than the bipolar reference cited in the supplied family comparison (vs NE556P)
- Lower typical power consumption for low-duty-cycle designs (vs NE556P)
- Reduced switching-related supply-current spikes (vs NE556P)
- Same-family commercial-grade ordering option (vs TS556ID)
Notas de projeto
The verified TS556CN supply range for this record is 2 V to 16 V, but secondary family data mentions 18 V. Do not design to 18 V without checking the exact manufacturer datasheet and absolute-maximum table. Place a local supply bypass close to the device, account for the reduced transition-current spikes documented for TS556, and verify that both timer sections and all output loads remain within the selected supply and output-current limits.
Keep each timing resistor and capacitor close to the pins belonging to its timer section. At frequencies approaching the verified 2.7 MHz maximum, long traces add capacitance and can shift oscillation or monostable delay. Use a compact ground return, avoid routing timing nodes beside fast switching-current paths, and keep the supply bypass path short. For the 14-DIP implementation, maintain adequate spacing between adjacent through-holes according to the PCB fabrication rules.
A dual timer does not automatically mean both sections share one timing network. Define and validate both astable or monostable configurations separately, including trigger thresholds, discharge paths, and output loading. Do not assume that every NE556 circuit transfers without review: compare the exact pin diagram, supply limits, timing tolerances, output-current behavior, and maximum operating frequency. A shared ground and supply are common, but timer-specific external networks should remain isolated to prevent unintended interaction.
Informações de conformidade
The supplied data does not state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status. The TS556CN is a commercial-temperature through-hole timer, so AEC-Q100 is treated as not applicable rather than qualified.
