My Inquiry
My Account
Microchip Technology AT88RF1354-ZU-T
- Part No.:
- AT88RF1354-ZU-T
- Manufacturer:
- Microchip Technology
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 36-VFQFN Exposed Pad
- Datasheet:
-
AT88RF1354-ZU-T.pdf
- Description:
- IC RFID READER 13.56MHZ 36QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,977
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT88RF1354-ZU-T from Microchip Technology (formerly Atmel) is an ISO/IEC 14443 Type B RF reader IC designed for contactless smartcard and RFID transponder communication at 13.56 MHz. It delivers 106 kbps half-duplex data exchange, integrates internal transmitter and robust demodulating receiver, supports dual serial interfaces (SPI up to 2 MHz / TWI up to 1 MHz), and operates across 3.0–3.6 V or 4.5–5.5 V supply rails - enabling integration into access control terminals and secure identification systems.
For engineers reviewing the AT88RF1354-ZU-T datasheet, AT88RF1354-ZU-T pinout, AT88RF1354-ZU-T application, or AT88RF1354-ZU-T equivalent, key selection considerations include its native Type B protocol handling, dual-voltage I/O compatibility, integrated CRC_B error detection, programmable frame wait timing, and QFN-36 package with segregated analog/digital/antenna power domains.
Technical Context
The AT88RF1354-ZU-T implements a complete ISO/IEC 14443-2 Type B physical layer and ISO/IEC 14443-3 Type B data link layer in hardware: it generates 13.56 MHz carrier via internal PLL, drives antenna directly without external active circuitry, and demodulates/decodes Type B signals with built-in noise immunity tuning via RXC register. Its transmitter register (TXC) configures modulation index and output power level independently of host MCU.
It features dedicated hardware acceleration for polling (Poll Single/Poll Continuous), TX Data framing, CRC_B generation, and error flagging in EREG - offloading all RF protocol timing, encoding, and frame validation from the host microcontroller. Register-based configuration (CPR0–CPR4) enables per-command frame wait time adjustment, supporting adaptive timeout behavior during multi-tag environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Standard | ISO/IEC 14443-2 & -3 Type B compliant - ensures interoperability with all certified Type B cards, tags, and PICCs. |
| Data Rate | 106 kbps half-duplex - fixed signaling rate defined by ISO/IEC 14443; no software negotiation required. |
| Supply Voltage Ranges | 3.0–3.6 V (digital/analog) AND 3.0–3.6 V or 4.5–5.5 V (VCC_ANT) - dual-rail support enables flexible power architecture with isolated antenna drive. |
| Serial Interface Options | SPI Mode 0 (≤2 MHz) or TWI slave (≤1 MHz); selected via ISEL pin - eliminates need for interface translation logic. |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded deployment in access control, ticketing, and asset tracking. |
| Package | 6 × 6 mm QFN-36 with exposed thermal pad - requires PCB-level thermal vias to VSS for reliability under sustained RF output. |
| CRC Algorithm | CRC_B (two-byte) - hardware-generated and verified per ISO/IEC 14443-3; errors flagged in EREG bit CRC. |
Pinout & Package
AT88RF1354-ZU-T uses a 6 mm × 6 mm, 36-pin QFN package with exposed thermal pad (ePad) requiring direct solder connection to VSS ground plane. Pin functions are strictly segregated: VCC/VSS for digital I/O, VCC_ANT/VSS_ANT for high-current antenna drive, and VSSA for analog circuits - mandatory separation prevents RF noise coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC [24], VSS [22] | Digital power and ground | Supplies I/O buffers, digital logic, and analog reference; bypassed by 15 nF + 2.2 µF capacitors within strict layout distances. |
| VCC_ANT [1], VSS_ANT [2] | Antenna driver power and return | Delivers up to 300 mA peak current to ANT pin; must be isolated from digital ground to avoid transmitter noise injection. |
| ANT [3] | RF output driver | Direct 13.56 MHz sine-wave output; connects to loop antenna via external matching network - no external amplifier needed. |
| ISEL [10] | Interface mode select | Low = TWI mode; High = SPI Mode 0 - determines SDO/SDI/SSB functionality and clock speed capability (1 MHz vs 2 MHz). |
| Istat [12] | Serial interface handshaking | Active-high status signal indicating data ready for read; mandatory for reliable command/response synchronization. |
| RFin [32] | Receiver input | Analog RF input from antenna; requires RC filter to limit peak voltage - critical for receiver sensitivity and ESD robustness. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware-accelerated Type B protocol stack | Full ISO/IEC 14443-2/-3 Type B implementation - eliminates host MCU firmware overhead for modulation, timing, frame assembly, and CRC_B. |
| Configurable frame wait timing (CPR registers) | Five independent 16-bit CPR registers (CPR0–CPR4) allow per-command timeout tuning - improves multi-tag polling efficiency and response predictability. |
| Dual-voltage serial interface compatibility | Accepts 3.3 V or 5 V host MCU logic levels on all digital pins - avoids level-shifting components in mixed-voltage system designs. |
| Integrated transmitter with no external active components | ANT pin drives resonant loop antenna directly using internal oscillator and modulator - reduces BOM count and layout complexity. |
| Robust receiver with programmable gain (RXC) | RXC register adjusts receiver sensitivity and noise immunity - enables optimization for varying antenna size, tag distance, and EMI environment. |
Applications
| Physical Access Control Terminal | Secure ID Badge Reader |
|---|---|
|
Use Scenario: Standalone door controller reads employee badges at entry points with <10 cm range and sub-second authentication latency. IC Role / Device Role / Timing Role: AT88RF1354-ZU-T acts as the RF front-end PCD (Proximity Coupling Device), managing field activation, PICC polling, and encrypted command exchange per ISO/IEC 14443-4. Use Value: Hardware CRC_B and internal buffer eliminate host-side protocol parsing, reducing MCU firmware size and certification effort for Common Criteria EAL4+ systems. |
Use Scenario: Desktop USB-connected badge enrollment station captures UID and application data from government-issued eID cards. IC Role / Device Role / Timing Role: AT88RF1354-ZU-T serves as the contactless interface engine, translating host USB commands into ISO/IEC 14443-3 Type B frames and returning decoded responses. Use Value: Dual serial interface options (SPI/TWI) simplify integration with low-cost ARM Cortex-M0/M3 hosts while maintaining full Type B compliance without external protocol co-processors. |
| Public Transit Fare Validator | Asset Tracking Tag Interrogator |
|
Use Scenario: Handheld validator verifies stored-value balance on transit cards during boarding, operating from battery with fast wake-up. IC Role / Device Role / Timing Role: AT88RF1354-ZU-T executes Poll Single and TX Data commands under host control, entering Sleep mode between transactions to minimize quiescent current. Use Value: Programmable CLKO output (1.978–15.82 MHz) allows synchronous clocking of external ADCs or secure elements - enhancing system-level timing coordination. |
Use Scenario: Industrial handheld scanner identifies maintenance tags on machinery using ruggedized Type B transponders mounted near motors or valves. IC Role / Device Role / Timing Role: AT88RF1354-ZU-T provides reliable RF coupling despite metal proximity, leveraging VSS_ANT isolation and adjustable RXC gain to maintain link integrity. Use Value: Segregated VCC_ANT/VSS_ANT domain and 300 mA antenna drive capability enable stable field generation even with small, low-inductance antennas (<800 nH) used in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ISO/IEC 14443 Type B reader applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLR31020TR | Single 3.3 V supply only; no VCC_ANT rail separation; integrated antenna driver lacks programmable gain control. | Targeted at cost-sensitive consumer readers with fixed-range requirements; not qualified for industrial temperature range. | Choose SLR31020TR only when board space and BOM cost outweigh need for antenna drive flexibility and extended temperature operation. |
| TRF7970A | Multi-standard (Type A/B/F/15693); higher integration (integrated LDO, GPIOs); requires external crystal load capacitors. | Supports hybrid deployments where Type A and Type B cards coexist; adds complexity in register mapping and power sequencing. | Choose TRF7970A when future-proofing for multi-protocol environments is required, accepting larger footprint and steeper software learning curve. |
Compared with SLR31020TR and TRF7970A, the AT88RF1354-ZU-T offers superior RF performance stability through physically isolated antenna power/ground domains and fine-grained receiver gain tuning - making it preferred for industrial access control and transit systems demanding consistent 10 cm+ read range under variable environmental conditions.
Availability
AT88RF1354-ZU-T is available at Aetrix Electronics and suitable for physical access control terminals, secure ID badge readers, public transit fare validators, and industrial asset tracking interrogators requiring stable component supply across long-lifecycle deployments.
Supply support for AT88RF1354-ZU-T 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 acquired Atmel in 2016 and maintains full technical and manufacturing continuity for legacy Atmel RFID products including the AT88RF1354 series.
The AT88RF1354 product line was engineered specifically for high-reliability ISO/IEC 14443 Type B reader applications in industrial and infrastructure markets - emphasizing RF noise immunity, thermal robustness, and deterministic protocol execution.
FAQ
What is the primary RF standard compliance of the AT88RF1354-ZU-T?
The AT88RF1354-ZU-T is fully compliant with ISO/IEC 14443-2 and ISO/IEC 14443-3 Type B standards. It implements the 13.56 MHz carrier, 106 kbps signaling, frame structure, and CRC_B error detection required for interoperability with all certified Type B contactless smartcards and PICCs - no firmware extension or external protocol handler is needed to meet these specifications.
Does the AT88RF1354-ZU-T require an external crystal oscillator?
Yes, the AT88RF1354-ZU-T requires a 13.56 MHz fundamental-mode crystal connected between Xtal1 and Xtal2 pins. This crystal feeds the internal PLL that generates the precise RF carrier frequency and system clocks. The crystal load capacitance and layout must follow Microchip's reference design guidelines to ensure stable oscillation and minimal phase noise - critical for reliable Type B communication.
How does the AT88RF1354-ZU-T handle power supply separation for RF performance?
The AT88RF1354-ZU-T mandates strict physical separation of three power domains: VCC/VSS (digital), VCC_ANT/VSS_ANT (antenna drive), and VSSA (analog). This prevents transmitter noise from coupling into the sensitive receiver path. The datasheet specifies minimum 20-mil spacing between ground planes and single-point connections - violating this layout rule degrades read range and increases CRC error rates in the AT88RF1354-ZU-T.
Can the AT88RF1354-ZU-T operate with both 3.3 V and 5 V host microcontrollers simultaneously?
Yes, the AT88RF1354-ZU-T supports mixed-voltage operation: VCC may be set to 3.0–3.6 V while VCC_ANT is independently set to 4.5–5.5 V (or vice versa), enabling optimal antenna drive strength without overvoltage stress on digital I/O. All digital pins (SCK, SDI, SDO, ISEL, etc.) tolerate either voltage range - eliminating level shifters when interfacing with 3.3 V MCUs controlling a 5 V antenna stage.
What is the function of the Istat pin on the AT88RF1354-ZU-T?
The Istat pin on the AT88RF1354-ZU-T is a mandatory handshaking signal that indicates data readiness on the serial interface. When high, it signals that a byte is available for reading from the AT88RF1354-ZU-T's internal buffer; when low, the buffer is empty. Host firmware must monitor Istat before initiating reads - ignoring this signal causes data loss or command timeouts during AT88RF1354-ZU-T communication sequences.
AT88RF1354-ZU-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 36-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- RFID Reader
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443
- Interface:
- SPI
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-QFN (6x6)
AT88RF1354-ZU-T FAQ
1.How can I place an order for AT88RF1354-ZU-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT88RF1354-ZU-T 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 AT88RF1354-ZU-T reliable?
The price and inventory of AT88RF1354-ZU-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT88RF1354-ZU-T is usually 5 days.
3.What payment methods are accepted for AT88RF1354-ZU-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT88RF1354-ZU-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT88RF1354-ZU-T?
AT88RF1354-ZU-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT88RF1354-ZU-T 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 AT88RF1354-ZU-T?
For technical support, including AT88RF1354-ZU-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT88RF1354-ZU-T requirements.
6.How does Aetrix verify that AT88RF1354-ZU-T is sourced from the original manufacturer or authorized distributors?
All AT88RF1354-ZU-T 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 AT88RF1354-ZU-T meets industry standards.
7.What is the process for return or replacement of AT88RF1354-ZU-T?
All AT88RF1354-ZU-T units undergo pre-shipment inspection (PSI). If there is an issue with AT88RF1354-ZU-T, 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 AT88RF1354-ZU-T part is unused and in its original packaging.
Return procedure for AT88RF1354-ZU-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT88RF1354-ZU-T Tags
-
SL2S2602FTBX
NXP Semiconductors
-
ST25DV04K-IER6S3
STMicroelectronics
-
ST25DV04K-IER6C3
STMicroelectronics
-
LXMSJZNCMD-217
Murata Electronics
-
NT3H2111W0FTTJ
NXP Semiconductors
-
NT3H2111W0FHKH
NXP Semiconductors
-
M24LR04E-RMC6T/2
STMicroelectronics
-
ST25DV04KC-JF6D3
STMicroelectronics
-
ST25DV64KC-IE6S3
STMicroelectronics
-
ST25DV64K-IER6T3
STMicroelectronics
-
NT3H2211W0FTTJ
NXP Semiconductors
-
NT3H2211W0FHKH
NXP Semiconductors
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…
