My Inquiry
My Account
Microchip Technology ATA5577M233AC-DBB
- Part No.:
- ATA5577M233AC-DBB
- Manufacturer:
- Microchip Technology
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
ATA5577M233AC-DBB.pdf
- Description:
- RFID TAG R/W 100-150KHZ ENCAP
- Quantity:
- Payment:
- Shipping:
Inventory:3,112
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ATA5577M233AC-DBB from Microchip Technology is a contactless read/write LF RFID identification IC operating at 125 kHz or 134 kHz, featuring 363-bit EEPROM (11 × 33-bit blocks), load-modulation uplink, and OOK/PIE downlink decoding. It serves as the core transponder IC in passive RFID tags for access control, animal identification, and industrial asset tracking.
For engineers reviewing the ATA5577M233AC-DBB datasheet, ATA5577M233AC-DBB pinout, ATA5577M233AC-DBB application, or ATA5577M233AC-DBB equivalent, this page delivers verified functional identity, confirmed memory architecture, validated modulation options (Manchester, FSK, PSK, NRZ), exact pad dimensions (200 μm × 400 μm), and real-world compatibility with T5557/ATA5567 systems.
Technical Context
The ATA5577M233AC-DBB integrates an analog front end with on-chip rectifier, clock extractor, field gap detector, and switchable resistive load between Coil 1 and Coil 2 for uplink transmission. Its controller loads configuration data from EEPROM block 0 and AFE settings from block 3 (page 1) after power-on reset.
It supports two operational modes: Basic mode with fixed data rates (RF/8 to RF/128) and Extended mode enabling binary-programmable data rates (RF/2 to RF/128), OTP functionality, inverse data output, and fast downlink (~6 kbps). Modulation schemes include Manchester, Bi-phase, FSK, PSK, and NRZ - all configurable via EEPROM registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 125 kHz or 134 kHz - matches standard LF RFID reader field frequencies for reliable coupling with low-Q coils. |
| EEPROM Capacity | 363 bits (11 blocks × 33 bits) - includes 7×32-bit user memory, 2×32-bit unique ID, 1×32-bit option register, and 1×32-bit configuration register. |
| Uplink Modulation | Resistive load modulation - enables bidirectional communication using single coil without external components. |
| Downlink Protocol | 100% OOK Pulse Interval Encoding (PIE) - decodes reader commands via field gap timing, compatible with legacy T5557 infrastructure. |
| Data Rate Range | RF/2 to RF/128 (Extended mode) or fixed RF/8–RF/128 (Basic mode) - supports flexible read speed vs. range trade-offs in varying antenna Q environments. |
| Pad Size | 200 μm × 400 μm - optimized for direct coil bonding in compact, foil-based transponder assemblies. |
| On-Chip Capacitor | 330 pF ±3% - reduces external component count and improves tuning stability across temperature and process variation. |
Pinout & Package
ATA5577M233AC-DBB uses a bare-die wafer-level package with two bond pads for direct coil connection. No encapsulation or leadframe is present; the device is designed for flip-chip or wire-bond mounting onto antenna substrates.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Coil 1 | RF input / power harvesting node | Primary terminal for AC field coupling; connects to one end of external LC tank - supplies rectified DC and clocks internal logic. |
| Coil 2 | RF return / modulation node | Second terminal for coil interface; switching resistive load between Coil 1 and Coil 2 enables uplink data transmission via field damping. |
Key Features
| Feature | Design Value |
|---|---|
| ISO/IEC 11784/11785 Configurability | Enabled via EEPROM option register - allows compliance with animal ID standards without hardware change. |
| Password-Protected Write Access | 32-bit password stored in block 7 - prevents unauthorized reprogramming in deployed tags; failsafe lockout on mismatch. |
| Answer-On-Request (AOR) Mode | Wake-up only on valid opcode + password - eliminates false reads in multi-tag fields and extends battery-free tag lifetime. |
| Soft Modulation Switching | Configurable transition ramp - avoids clock loss in high-Q antenna systems by smoothing modulation onset. |
| OTP Lock Capability | Master key = 6 + OTP bit = 1 permanently disables write access - ensures immutable configuration in certified deployments. |
Applications
| Access Control Systems | Animal Identification Tags |
|---|---|
Use Scenario: Contactless door entry using ISO-compliant RFID credentials embedded in plastic cards or wristbands. IC Role / Device Role / Timing Role: Transponder IC providing secure, modulated uplink response to 125 kHz reader interrogation. Use Value: Enables password-protected reprogramming of access codes and supports AOR mode to prevent relay attacks in dense reader environments. | Use Scenario: Implantable or ear-tag RFID devices for livestock tracking compliant with ISO/IEC 11784/11785. IC Role / Device Role / Timing Role: Passive IDIC storing unique 40-bit traceability data (lot, wafer, die) and manufacturer-assigned ACL/MFC identifiers. Use Value: On-die traceability structure meets regulatory requirements; 330 pF integrated capacitor simplifies antenna tuning for small-form-factor implants. |
| Waste Management Bin Tags | Industrial Asset Tracking |
Use Scenario: Ruggedized RFID tags mounted on municipal waste containers for automated collection route optimization. IC Role / Device Role / Timing Role: Read/write transponder enduring outdoor thermal cycling and mechanical stress while maintaining EEPROM integrity. Use Value: Blockwise write protection (lock bits) prevents accidental overwrites; high Q-antenna tolerance ensures reliable reads despite metal proximity. | Use Scenario: Tooling or equipment tagging in factory automation where tags must survive repeated handling and ESD exposure. IC Role / Device Role / Timing Role: LF RFID IDIC interfacing with handheld readers for maintenance logging and calibration tracking. Use Value: Compatible with existing T5557 infrastructure - enables drop-in replacement without reader firmware updates or antenna redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LF RFID transponder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| T5557-TS8 | Same 363-bit EEPROM layout and PIE downlink; lacks OTP, soft modulation, and ISO configurability. | No built-in ISO/IEC 11784 support; requires external capacitor; no AOR or password mode. | Select when cost sensitivity outweighs need for advanced security or regulatory compliance features. |
| ATA5567-PLW | Identical pinout and memory map; shares same AFE option register structure and extended mode capabilities. | Different pad geometry (100 μm × 100 μm); intended for wire bonding rather than direct coil bonding. | Choose for wire-bond assembly processes; verify antenna matching due to different parasitic capacitance profile. |
Compared with T5557-TS8 and ATA5567-PLW, the ATA5577M233AC-DBB provides superior integration (330 pF capacitor), enhanced security (password + OTP), and standardized animal ID support - making it optimal for new designs requiring regulatory alignment and long-term firmware flexibility.
Availability
ATA5577M233AC-DBB is available at Aetrix Electronics and suitable for access control systems, animal identification tags, and industrial asset tracking requiring stable component supply, consistent wafer-level die performance, and full traceability documentation.
Supply support for ATA5577M233AC-DBB 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
Microchip Technology Inc. is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and secure authentication solutions for industrial, automotive, and IoT applications.
The ATA5577 family is designed as a next-generation LF RFID transponder IC platform supporting ISO/IEC 11784/11785, T5557 compatibility, and field-deployable security features - targeting high-reliability identification in harsh or regulated environments.
FAQ
What is the primary function of the ATA5577M233AC-DBB in an RFID system?
The ATA5577M233AC-DBB functions as a passive, contactless read/write identification IC that harvests power from a 125 kHz or 134 kHz reader field and communicates via load modulation. It stores 363 bits of EEPROM data including user memory, unique ID, and configuration registers, and is used exclusively as the transponder chip in RFID tags - not as a reader-side component. Its design centers on interoperability with legacy T5557 systems while adding ISO compliance and enhanced security features.
Does the ATA5577M233AC-DBB require external capacitors for operation?
No, the ATA5577M233AC-DBB integrates a trimmed 330 pF ±3% capacitor internally, eliminating the need for external tuning capacitors in most standard 125 kHz antenna designs. This reduces bill-of-materials count and improves manufacturing yield in foil-based tag production. External capacitors may still be used for fine-tuning in non-standard coil geometries or extreme environmental conditions, but they are not required for basic operation per the datasheet specifications.
How does the ATA5577M233AC-DBB support ISO/IEC 11784/11785 compliance?
The ATA5577M233AC-DBB supports ISO/IEC 11784/11785 compliance through configurable EEPROM registers: its traceability data structure (blocks 1–2, page 1) embeds ACL = E0h and MFC = 15h per standard, and the AFE option register allows setup of modulation parameters required for animal ID protocols. Configuration is performed via standard PIE-encoded commands - no hardware modification is needed. Full compliance validation requires correct programming of the unique ID and adherence to timing parameters defined in the standard.
What are the key differences between Basic mode and Extended mode on the ATA5577M233AC-DBB?
Basic mode offers fixed data rates (RF/8 to RF/128) and standard modulation schemes (Manchester, FSK, PSK, NRZ), while Extended mode enables binary-programmable data rates (RF/2 to RF/128), OTP locking, inverse data output, fast downlink (~6 kbps), and soft modulation switching. Extended mode activation requires master key = 6 or 9 in EEPROM block 0. The ATA5577M233AC-DBB defaults to Basic mode unless explicitly configured, ensuring backward compatibility with existing T5557 readers.
Can the ATA5577M233AC-DBB be used as a direct replacement for the T5557 in existing designs?
Yes, the ATA5577M233AC-DBB is designed for functional compatibility with the T5557 in most common operation modes, sharing identical memory layout, Configuration register structure, and PIE downlink protocol. However, it is not a pin-to-pin drop-in replacement in packaged form - the ATA5577M233AC-DBB is a bare die with 200 μm × 400 μm pads for direct coil bonding, whereas T5557 variants are typically packaged. Electrical behavior and command set are aligned, but mechanical integration and antenna matching must be verified for each specific implementation.
ATA5577M233AC-DBB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Style:
- Encapsulated
- Technology:
- Passive
- Frequency:
- 100kHz ~ 150kHz
- Memory Type:
- Read/Write
- Writable Memory:
- 363b (User)
- Standards:
- ISO 11784, ISO 11785
- Operating Temperature:
- -40°C ~ 85°C
- Size / Dimension:
- 0.053" L x 0.039" W (1.36mm x 1.00mm)
ATA5577M233AC-DBB FAQ
1.How can I place an order for ATA5577M233AC-DBB through Aetrix?
Please submit a Request for Quotation (RFQ) for ATA5577M233AC-DBB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ATA5577M233AC-DBB reliable?
The price and inventory of ATA5577M233AC-DBB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATA5577M233AC-DBB is usually 5 days.
3.What payment methods are accepted for ATA5577M233AC-DBB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATA5577M233AC-DBB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATA5577M233AC-DBB?
ATA5577M233AC-DBB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATA5577M233AC-DBB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ATA5577M233AC-DBB?
For technical support, including ATA5577M233AC-DBB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATA5577M233AC-DBB requirements.
6.How does Aetrix verify that ATA5577M233AC-DBB is sourced from the original manufacturer or authorized distributors?
All ATA5577M233AC-DBB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ATA5577M233AC-DBB meets industry standards.
7.What is the process for return or replacement of ATA5577M233AC-DBB?
All ATA5577M233AC-DBB units undergo pre-shipment inspection (PSI). If there is an issue with ATA5577M233AC-DBB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ATA5577M233AC-DBB part is unused and in its original packaging.
Return procedure for ATA5577M233AC-DBB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATA5577M233AC-DBB Tags
-
SL3S1013FTB0,115
NXP Semiconductors
-
NTP53321G0JHKZ
NXP Semiconductors
-
HTSH4801ETK,118
NXP Semiconductors
-
NTA53321G0FHKZ
NXP Semiconductors
-
RF-HDT-DVBE-N2
Texas Instruments
-
RF-HDT-DVBB-N2
Texas Instruments
-
HT2DC20S20/F/RSP
NXP Semiconductors
-
TRPGR30ATGA
Texas Instruments
-
TRPGR30ATGC
Texas Instruments
-
RI-TRP-DR2B-40
Texas Instruments
-
V680-D1KP52MT
Omron Automation and Safety
-
HTMS8001FTB/AF,115
NXP USA Inc.
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
