NJU39610D2 - Dual 7-bit DAC Stepper Motor Controller | DIP-22 | NJR
Référence : NJU39610D2 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $5.42 | $5,42 |
| 10 | $4.88 | $48,80 |
| 100 | $4.27 | $427,00 |
| 500 | $3.75 | $1 875,00 |
| 1 000 | $3.32 | $3 320,00 |
NJU39610D2 Présentation
A microstepping controller is a specialized mixed-signal IC that converts digital position commands (typically from an 8-bit microcontroller such as the 6800/8051/Z80 family) into dual analog reference voltages that command the current setpoint of each motor phase. By dividing each full step into smaller microsteps through precise analog current control, microstepping dramatically reduces resonance, audible noise, and torque ripple compared with full-step or half-step excitation. The NJU39610 family sits in the motion-control hierarchy between a host processor and a power H-bridge driver such as the NJM3771, ultimately controlling a brushless DC or two-phase bipolar stepper motor.
Key features include dual 7-bit+sign DACs for two independent phase current references, parallel 8-bit microprocessor-compatible data bus interface (compatible with 6800, 6801, 8051, Z80, and similar families in 8-bit data mode), TTL-compatible inputs (except reset), and a -20°C to +85°C commercial operating temperature range. The on-chip dual DAC architecture eliminates external trim and matching of discrete references, simplifying the analog signal chain while preserving monotonicity across the full output swing.
Architecturally the NJU39610D2 combines CMOS digital logic for host interfacing and sequencing with precision bipolar DAC cores, allowing low-power operation from a single 5 V nominal supply while producing accurate current setpoints. The device is specified for office-automation and industrial equipment duty cycles where predictable microstep accuracy over temperature is required. Through-hole DIP-22 packaging supports legacy industrial designs, breadboarding, and field-replacement scenarios where socketed ICs are preferred over surface-mount alternatives.
Typical applications include office-automation printers and plotters, CNC and pick-and-place equipment, factory automation positioning stages, textile and packaging machinery, medical instrumentation positioning, and robotic actuator control. The NJU39610D2 is most often paired with the NJM3771 driver to complete the analog control loop for 2-phase bipolar stepper motors.
When designing with this device, ensure the host microcode initializes the DAC latches before energizing the motor and follow the timing diagrams for /CS, /WR, and the two address pins exactly to avoid spurious phase current updates. Decouple VCC with a 0.1 µF ceramic capacitor placed within 10 mm of the supply pin and keep analog ground returns short and isolated from digital switching currents.
Alternatives de remplacement direct pour NJU39610D2 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
NJM39610
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
NJU39610D2-#ZZZB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
NJU39610D2 Valeurs maximales et caractéristiques électriques
| Fonction | Microstepping motor controller with dual DAC |
| DAC Resolution | 7-bit + sign (dual channel) |
| Number of DAC Channels | 2 |
| Motor Type Supported | 2-phase bipolar stepper (via NJM3771 driver) |
| Data Bus Interface | 8-bit parallel, 6800/8051/Z80 compatible |
| Nombre de broches | 22 |
| Package Type | DIP-22 (D2 suffix), through-hole |
| Package Dimensions | 7.62 mm wide, 26.8 mm long, 2.54 mm pitch |
| Nominal Supply Voltage | 5 V |
| Input Logic Compatibility | TTL (except reset pin) |
| Plage de température de fonctionnement | -20 °C to +85 °C |
| Designed Companion Driver | NJM3771 precision stepper motor driver |
| Type de montage | Through-Hole (DIP) |
Configuration des broches de NJU39610D2
| Broche 1 | VCC — +5 V supply input |
| Broche 2 | GND — Digital ground |
| Broche 3 | AGND — Analog ground reference |
| Broche 4 | VREF — DAC reference voltage input |
| Broche 5 | IOUTA — DAC A current-mode output (phase A reference) |
| Broche 6 | IOUTB — DAC B current-mode output (phase B reference) |
| Broche 7 | A0 — Address line 0 (selects internal register) |
| Broche 8 | A1 — Address line 1 (selects internal register) |
| Broche 9 | D0 — Data bit 0 |
| Broche 10 | D1 — Data bit 1 |
| Broche 11 | D2 — Data bit 2 |
| Broche 12 | D3 — Data bit 3 |
| Broche 13 | D4 — Data bit 4 |
| Broche 14 | D5 — Data bit 5 |
| Broche 15 | D6 — Data bit 6 |
| Broche 16 | D7 — Data bit 7 |
| Broche 17 | GND — Digital ground |
| Broche 18 | NC — Not connected (per datasheet) |
| Broche 19 | /WR — Write strobe (active low) |
| Broche 20 | /CS — Chip select (active low) |
| Broche 21 | /RESET — Reset input (active low, non-TTL) |
| Broche 22 | VCC — +5 V supply input |
Applications typiques
NJU39610D2 convient pour 6 applications: Office-Automation Printer Carriage, CNC Pick-and-Place Axis Positioning, Plotter and Engraver Drive, Textile / Packaging Machine Feed, Medical Instrument Positioning, Robotic Actuator Drive.
Office-Automation Printer Carriage
The NJU39610D2 is well suited for office printer carriage and paper-feed stepper control because its dual 7-bit+sign DACs deliver smooth sinusoidal phase currents that suppress the audible resonance that full-step excitation would otherwise produce. When paired with the NJM3771 driver, the analog reference rails remain stable across the -20 °C to +85 °C operating range, allowing consistent microstep accuracy in warm printer enclosures. The 5 V TTL bus interface connects directly to legacy 8051/Z80 motion controllers still found in printer electronics without level shifters. Decoupling the VCC pin with a 0.1 µF ceramic placed within 10 mm keeps the dual-DAC references noise-free even during simultaneous logic transitions.
Recommandé
CNC Pick-and-Place Axis Positioning
For pick-and-place machine X/Y axes the NJU39610D2's two independent DAC channels let one IC command both windings of a single bipolar stepper, halving the digital-control footprint versus discrete reference designs. The 7-bit+sign resolution translates to 128 steps per full step, which is sufficient for the 1/8 microstep profiles used in mid-resolution PCB assembly machines, balancing torque smoothness against switching losses in the NJM3771 output stage. The parallel 8-bit bus accepts step-and-direction data directly from the host MCU, simplifying firmware timing. Through-hole DIP-22 packaging also makes the IC easy to swap in field-service scenarios.
Recommandé
Plotter and Engraver Drive
XY plotters and engraving machines benefit from the NJU39610D2's smooth microstep profiles because any phase-current ripple translates directly into visible banding on the workpiece. The dual-DAC architecture maintains matched amplitude and phase accuracy between the A and B windings, which is critical for low-vibration traversal at low feed rates where full-step resonance would otherwise stall the carriage. The TTL-compatible bus connects to common 8-bit motion MCUs without external glue logic, and the DIP-22 form factor is convenient for prototyping and small-batch builds. Paired with the NJM3771 the combination delivers sub-millimetre positioning repeatability.
Recommandé
Textile / Packaging Machine Feed
In textile and packaging equipment the NJU39610D2 drives feed rollers and cutting-axis steppers with microstep smoothness that prevents the audible whine and mechanical resonance typical of full-step drives. The 5 V single-supply operation simplifies the power architecture in 24 V-bus factory systems where a small isolated 5 V rail already exists for the motion controller. The -20 °C to +85 °C commercial-industrial temperature range covers most factory-floor enclosures, and the 22-pin DIP package supports socketed field replacement by maintenance technicians. Together with the NJM3771 it forms a robust analog microstepping front end.
Recommandé
Medical Instrument Positioning
Laboratory analyzers and diagnostic instruments use the NJU39610D2 to position sample trays, pipettes and optical stages with the low-vibration motion that microstepping provides. The dual 7-bit+sign DACs produce the precise sinusoidal references required for repeatable microstep positioning, while the parallel 8-bit bus accepts commands directly from a supervisory 8-bit MCU without protocol overhead. DIP-22 packaging makes the controller easy to integrate into small-form-factor medical enclosures and simplifies EMC debugging because long through-hole leads allow scope probing. The NJM3771 driver completes the motion chain for the bipolar stepper motor.
Recommandé
Robotic Actuator Drive
Small robotic actuators and pan-tilt mechanisms benefit from the NJU39610D2's compact dual-DAC microstepping controller, which drives one or two bipolar steppers from a single IC. The 5 V TTL bus interfaces with hobby-grade and industrial 8-bit host MCUs equally well, and the sinusoidal current profiles generated by the dual DACs deliver the smooth, low-resonance motion expected of pan-tilt heads and small robot joints. Through-hole DIP-22 construction aids prototyping on perfboard and supports socketed field service in deployed robot cells. Pairing with the NJM3771 supplies the necessary phase-current drive for typical NEMA-style steppers.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour NJU39610D2 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | NJM39610 | NJU39610FM2 | NJU39610D2-#ZZZB | L297 |
|---|---|---|---|---|---|
| Brand | Nisshinbo Micro Devices | Nisshinbo Micro Devices | Nisshinbo Micro Devices | Nisshinbo Micro Devices | STMicroelectronics |
| Package | DIP-22 (D2) | DIP-22 (same) | SOP-22 (different) | DIP-22 (same) | DIP-20 (different) |
| Function | Microstepping controller with dual 7-bit+sign DAC | Microstepping controller with dual 7-bit+sign DAC (same) | Microstepping controller with dual 7-bit+sign DAC (same) | Microstepping controller with dual 7-bit+sign DAC (same) | Bipolar stepper controller (translator/DAC-less) |
| DAC Channels | 2 (7-bit + sign each) | 2 (7-bit + sign each) | 2 (7-bit + sign each) | 2 (7-bit + sign each) | 0 (no on-chip DAC) |
| Supply Voltage | 5 V nominal | 5 V nominal | 5 V nominal | 5 V nominal | 5 V nominal |
| Bus Interface | 8-bit parallel (6800/8051/Z80) | 8-bit parallel (6800/8051/Z80) | 8-bit parallel (6800/8051/Z80) | 8-bit parallel (6800/8051/Z80) | Step/Direction (1 clock + 1 direction line) |
| Operating Temperature | -20 °C to +85 °C | -20 °C to +85 °C | -20 °C to +85 °C | -20 °C to +85 °C | -40 °C to +150 °C |
| Mounting Type | Through-Hole (DIP-22) | Through-Hole (DIP-22) | Surface-Mount (SOP-22) | Through-Hole (DIP-22) | Through-Hole (DIP-20) |
Principaux différenciateurs
- On-chip dual 7-bit+sign DACs eliminate external reference design (vs L297 (STMicroelectronics))
- Through-hole DIP-22 package for socketed and field-replaceable designs (vs NJU39610FM2 (SOP-22))
- Native 8-bit parallel bus for legacy 8051/Z80 hosts (vs L297 (STMicroelectronics))
Notes de conception
Estimated: the NJU39610D2 draws its quiescent current from a single +5 V rail; place a 0.1 µF ceramic decoupling capacitor within 10 mm of the VCC pin and a 10 µF bulk tantalum or ceramic cap on the same rail to absorb bus-write transients. If the design also powers the companion NJM3771 from the same 5 V rail, isolate the digital and analog grounds with a single-point tie near the controller's AGND pin to prevent DAC reference noise from digital switching.
Keep analog traces (IOUTA, IOUTB, VREF, AGND) short and physically separated from the parallel data bus lines to minimise digital-to-analog crosstalk into the DAC references. Route /CS, /WR, A0, A1 together so that bus timing matches the datasheet diagrams; mismatched trace lengths can produce setup/hold violations on the address pins. Provide a solid ground plane under the IC and stitch vias around the DIP-22 perimeter for stable analog performance.
Do not drive /RESET with TTL levels - the datasheet specifies this pin as non-TTL. Always initialise both DAC latches (A and B) to zero on power-up before energising the stepper, otherwise the motor may jerk to a non-zero position. Ensure /CS and /WR de-assertion timing follows the datasheet; holding /CS low across multiple writes can corrupt DAC data. Confirm VREF accuracy, since both DAC outputs are ratiometric to this reference and any drift directly translates into motor current error.
Informations de conformité
RoHS, REACH, lead-free and halogen-free status are not explicitly stated in the verified web data; confirm with Nisshinbo Micro Devices before designing into RoHS-critical or halogen-free products. The part is not AEC-Q100 qualified - commercial-grade -20 to +85 °C only.
