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Contact chip blank card (#AT24C64 Chip) ,64K SERIAL EEPROM Internally organized with 512 pages of 16 bytes each,
the 64K requires an 11-bit data word address for random word addressing.
Key Features
Low-voltage and Standard-voltage Operation
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
Internally Organized : 8192x 8 (64K)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
100 kHz (1.8V) and 400 kHz (2.7V, 5V) Compatibility
Write Protect Pin for Hardware Data Protection
8-byte Page (1K, 2K), 16-byte Page (4K, 8K, 16K) Write Modes
Partial Page Writes Allowed
Self-timed Write Cycle (5 ms max)
High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
Automotive Grade and Lead-free/Halogen-free Devices Available
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 5-lead SOT23,
8-lead TSSOP and 8-ball dBGA2 Packages
Die Sales: Wafer Form, Waffle Pack and Bumped Wafers
Size: 85.6 x 54 x 0.84MM
Packaging materials: PVC
Application
Access control, time attendace, ticketing, ePayment and any other application where the integrity and security of the data stored is vital.
RFID cards and Proximity cards offer a diverse range of functions that are commonly used for such applications as access control,
time and attendance, cashless payment, and event management.
Package Include
10pcs AT24C64 Chip card
D. Meyers
Reviewed in the United States on August 8, 2024
After reading some of these reviews, I actually peeled off the contacts and looked at the chip underneath under my microscope. Yep, there is a chip there, with Vcc, Gnd, SCK and SDA connected with tiny gold wires. RST is not implemented. The actual chip is only about a millimeter square, which is why the card is perfectly flat. I am using the cards to save and load menu settings for a commercial convection oven controller. In this application it is simply an EEPROM, with no security or encryption whatsoever. I was pleasantly surprised.
Richard L Nichols II
Reviewed in the United States on February 6, 2024
Was looking for ISO 7816 smart card, but forgot to look at reviews (shame on me). Have to ditto Alex B's review. I have tried three different readers and all return "Unresponsive card (installed correctly?)".
Kim
Reviewed in the United States on April 9, 2024
There is a slight bump on the blank side from the smart chip that causes a huge vertical smudge across the entire card. Rest of the card prints fine, but 20% of the card is smudged garbage.
Eric Hoover
Reviewed in the United States on September 21, 2021
We tried buying this to replace a proprietary card. Unfortunately without the programming they didn't work for us
Sunny
Reviewed in the United States on August 5, 2021
Pretty much worthless unless you have software and instructions on how to use.
Alex B
Reviewed in the United States on July 15, 2020
I tried these cards on all the ISO 7816 readers we own (Identiv SCR3310r1 & SCR3310r2, Identiv uTrust 4701F, HID OmniKey 5422, Belkin SmartCard reader) and none of the readers could read these cards, not even the serial # of the cards. In most cases, it would read as "no card inserted" or "card inserted incorrectly".When comparing to other brand name ISO 7816 cards, I can see the golden contact pads have a different trace patterns than a HID Crescendo or Taglio PIVkey, so I am fairly certain that these smartcards are not ISO 7816 at all. Likely meant for some other smart card protocol.
Wolfgang Seltner
Reviewed in the United States on March 30, 2019
Work like a charm. I was looking for a substitute for the Marklin '60135 Locomotive Card'. Have about 120 locomotives and at $25 for 5 I figured there must be unbranded ones available for less. These are perfect. I bought 50 pcs already.
Zach
Reviewed in the United States on December 12, 2019
Cards are read write protected and are completely useless.
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