Nexperia USA Inc. 74AHC1G4210GWH

Overview

74AHC1G4210GWH from Nexperia is a 10-stage binary counter and crystal oscillator IC with overvoltage-tolerant X1 input (up to 5.5 V), 2.0–5.5 V supply range, and Q output frequency = f_X1/1024. It functions as a precision clock divider in mixed-voltage timing systems and supports standalone crystal-based oscillation via X1–X2 feedback path. Typical applications include low-power real-time clock prescaling and microcontroller clock domain translation.

For engineers reviewing the 74AHC1G4210GWH datasheet, 74AHC1G4210GWH pinout, 74AHC1G4210GWH application, or 74AHC1G4210GWH equivalent, key selection criteria include its 1024:1 fixed division ratio, TSSOP5 package compatibility, -40 °C to +125 °C operating range, and overvoltage tolerance enabling direct interface with 5 V logic in 3.3 V systems.

Technical Context

The device implements a synchronous 10-bit ripple-free counter chain of D-type flip-flops, advancing on each negative-going edge of X1. Its single inverting stage between X1 and X2 provides gain for crystal resonance or acts as a level-shifting buffer - when used as a buffer, X2 must remain floating to avoid loading.

Input overvoltage tolerance (VI up to 5.5 V independent of VCC) enables use as a voltage-level translator across 1.8 V/3.3 V/5 V domains. The Q output delivers CMOS-compatible logic levels with guaranteed VOH ≥ 2.48 V (VCC = 3.0 V, IO = –4 mA) and VOL ≤ 0.44 V (VCC = 3.0 V, IO = 4 mA).

Key Specifications

Pinout & Package

TSSOP5 (SOT353-1) plastic thin shrink small outline package: 5-lead, 1.25 mm body width, 0.65 mm pitch, pin 1 indicator at lower-left corner below marking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10-stage divider and oscillator applications.

Compared with 74LVC1G4210GW, the 74AHC1G4210GWH offers superior noise immunity and tighter VIH/VIL margins at 2.0 V supply; compared with CD4060BE, it delivers smaller footprint, guaranteed 1024:1 ratio, and integrated overvoltage protection - making it optimal for space-constrained, mixed-voltage industrial timing.

Availability

74AHC1G4210GWH is available at Aetrix Electronics and suitable for real-time clock prescaling, microcontroller clock domain translation, and low-power sensor node timing requiring stable component supply across industrial temperature ranges.

Supply support for 74AHC1G4210GWH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a leading Dutch semiconductor manufacturer specializing in high-performance logic, analog, and discrete components for automotive, industrial, and consumer applications.

The 74AHC logic family targets high-speed, low-power, and robust mixed-signal interfacing - designed specifically for reliable operation in noisy, wide-temperature, and multi-rail embedded systems.

FAQ

Can the 74AHC1G4210GWH operate with a 1.8 V supply?

No. The absolute minimum supply voltage is 2.0 V per the Recommended Operating Conditions table. At 1.8 V, VIH and VOL specifications cannot be guaranteed, and internal flip-flop switching margins degrade significantly. For 1.8 V systems, consider the 74LVC1G4210GW variant instead.

What happens if X2 is not left floating when using an external clock on X1?

Connecting X2 to any node other than high-impedance (e.g., tying to VCC, GND, or another signal) loads the internal inverter output, disrupting oscillator startup, increasing propagation delay variation, and potentially causing metastability or latch-up. The datasheet explicitly requires X2 to float in buffered mode.

Is the Q output edge-aligned to the X1 falling edge?

Yes. The 10-stage counter advances synchronously on each negative-going transition of X1, and Q reflects the final stage's state. Measured t_pd(X1→Q) is 27 ns typical at 3.3 V, with no additional skew introduced by internal routing - ensuring deterministic timing for downstream sampling.

Does the device require external components for crystal oscillator operation?

Yes. A typical crystal oscillator configuration requires an external crystal (e.g., 32.768 kHz), two load capacitors (C1 = 22–37 pF, C2 = 100 pF), and a bias resistor (R_bias = 560 kΩ) per Figure 8. No internal capacitors or trimming elements are included - all external values must be selected per crystal manufacturer recommendations.