Analog Devices Inc./Maxim Integrated MAX9977AKCCQ+D

MAX9977 integrates four independent three-level device-under-test drivers. Each channel supports high, low, active-termination and high-impedance operating states. Differential control inputs and a shared serial interface reduce external pin-electronics circuitry in medium-performance system-on-chip and memory test systems.

The manufacturer ordering table lists MAX9977AKCCQ+D in a 100-pin TQFP with an inverted exposed die pad; the database package is 100-TQFP Exposed Pad. The exposed pad is on the top for heat extraction. Check the manufacturer's C100E-8R drawing for land pattern, pad orientation and thermal assembly requirements.

Layout checks

• Verify 100-pin TQFP outline and 0.5 mm lead pitch.
• Confirm the inverted exposed pad and heat-sink contact.
• Check pin-one orientation and the C100E-8R drawing.

The registered package JPG is not available on the production site. Its expected path is shown only for later verification; the manufacturer drawing controls mechanical design.

The manufacturer pin description groups the four channels and shared controls as follows:

Signal groups do not substitute for the datasheet's 100-pin map. Verify exact pin numbers, polarities and bypassing before PCB routing.

Performance figures carry the manufacturer's specified test conditions and are not unconditional limits for every board configuration.

Do not replace the AK variant with the AD version without checking control-input termination. For any substitute, compare four-channel topology, level range, interface, timing, exposed-pad orientation, thermal path and exact pin map. The manufacturer's pin-compatibility statement for related MAX9963/MAX9965 drivers does not establish functional or timing equivalence for every board.

No internal catalog alternative is linked because an exact product-and-package match has not been verified through the product API.

The database identifies Analog Devices Inc./Maxim Integrated. The MAX9977 datasheet was issued by Maxim Integrated and is now hosted by Analog Devices. Its ordering table explicitly lists MAX9977AKCCQ+D as the lead-free AK option in the 100-pin TQFP inverted-die-pad package.

Confirm the full top marking, lead-free suffix, package outline, exposed-pad construction and traceability for each supplied lot. Inspect lead condition and thermal interface and perform electrical acceptance testing appropriate to the test platform.

Before design-in or replacement, verify the complete ordering code, C100E-8R package drawing, inverted-pad thermal interface, pin assignments, differential control levels, power limits and speed test conditions against the manufacturer datasheet. The production package JPG is missing, so this draft must remain under review until the asset and rendering are verified.