Monza R6 / R6-P vs UCODE 9

Compare Monza R6/R6-P and UCODE 9 UHF RFID chips: memory configurations, Gen2v2 compliance, security features, and suitability for retail tagging applications.

Side-by-side specs

Frequency
Monza R6 / R6-P
860-960 MHz
UCODE 9
840–960 MHz (UHF)
Protocol
Monza R6 / R6-P
RAIN RFID / ISO 18000-63 and EPCglobal Gen2v2 compliant
UCODE 9
EPC Gen2v2.1 (EPCglobal Class-1 Generation-2 UHF RFID)
Memory
Monza R6 / R6-P
MR6: 96 bits EPC, no user memory; MR6-P: 96/128 bits EPC, 64/32 bits user memory
UCODE 9
96-bit EPC, 96-bit TID (48-bit unique serial number), 32-bit kill password
Interface
Monza R6 / R6-P
RF (contactless)
UCODE 9
RF (contactless)
Temp Range
UCODE 9
-40°C to +85°C
Form Factor
Monza R6 / R6-P
MR6: die size 464.1 x 400 µm; MR6-P: die size 464.1 x 442 µm
UCODE 9
Wafer (12-inch, 120 µm thick, 0.43 mm × 0.38 mm die, conventional or plasma dicing, large pads)
Security
Monza R6 / R6-P
MR6-P: Access/Kill password, short-range mode
UCODE 9
32-bit kill password, Memory Safeguard (ECC, parity check), permalock

Verdict

Choose Monza R6 / R6-P if you need flexibility in memory configuration and optional short-range privacy mode. The MR6 variant provides basic 96-bit EPC memory with no user memory, suitable for straightforward item-level tagging where only serialized identification is required. The MR6-P variant offers configurable memory (96 or 128-bit EPC with corresponding 64 or 32-bit user memory), access and kill password protection, and a short-range mode that reduces read distance for privacy-sensitive applications. Both variants operate across the full 860–960 MHz UHF spectrum and comply with ISO 18000-63 and EPCglobal Gen2v2 standards. The MR6-P's user memory enables on-tag data storage for applications requiring additional product information beyond the EPC identifier, and the short-range mode provides operational control over when tags can be read. Choose UCODE 9 if you prioritize maximum read speed in high-density tag environments and require enhanced data integrity features. UCODE 9 operates across 840–960 MHz (20 MHz lower baseline than Monza R6) and complies with EPC Gen2v2.1, the latest generation standard. It provides 96-bit EPC memory, a 96-bit TID containing a 48-bit factory-programmed unique serial number for authentication, and a 32-bit kill password. The chip incorporates Memory Safeguard technology with error correction code (ECC) and parity checking to ensure data reliability, plus permalock functionality to permanently secure memory sections. UCODE 9 delivers faster singulation and read rates optimized for retail environments with hundreds of tags in close proximity, such as checkout lanes or inventory portals. The extended TID with guaranteed unique serialization and built-in error correction make it preferable for applications demanding traceability and data integrity verification.

FAQ

What is the main memory difference between Monza R6 and UCODE 9?

Monza R6 offers 96-bit EPC with no user memory, while MR6-P provides configurable 96/128-bit EPC with 64/32-bit user memory. UCODE 9 has fixed 96-bit EPC with no user memory but includes a larger 96-bit TID (versus standard TID sizes) containing a 48-bit unique serial number.

Do both chips support the same UHF frequency range?

UCODE 9 supports 840–960 MHz while Monza R6/R6-P operates at 860–960 MHz. UCODE 9 covers 20 MHz lower in the spectrum, potentially offering better compatibility in regions using the lower UHF band edges.

Which chip has better data protection features?

UCODE 9 provides Memory Safeguard with ECC and parity checking for error detection and correction, plus permalock for permanent memory protection. Monza R6-P offers access/kill passwords and short-range mode but lacks hardware-based error correction. Base MR6 has no security features.

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