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24LC21AT
24LC21AT - Brand New Microchip Technology Memory
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
Description
The Microchip Technology Inc. 24LC21A is a 128 x 8-bit dual-mode Electrically
Erasable PROM. This device is designed for use in applications requiring
storage and serial transmission of configuration and control information. Two
modes of operation have been implemented:
Transmit-only mode and Bidirectional mode. Upon power-up, the device will be
in the Transmit-only mode, sending a serial bit stream of the memory array
from 00h to 7Fh, clocked by the VCLK pin. A valid high-to-low transition on
the SCL pin will cause the device to enter the transition mode, and look for a
valid control byte on the I2C bus. If it detects a valid control byte from the
master, it will switch into Bidirectional mode, with byte selectable
read/write capability of the memory array using SCL. If no control byte is
received, the device will revert to the Transmit-only mode after it receives
128 consecutive VCLK pulses while the SCL pin is idle. The 24LC21A is
available in a standard 8-pin PDIP and SOIC package in both commercial and
industrial temperature ranges.
Features
• Single supply with operation down to 2.5V
• Completely implements DDC1™/DDC2™ interface for monitor identification,
including recovery to DDC1
• Pin and function compatible with 24LC21
• Low-power CMOS technology
- 1 mA typical active current
- 10 µA standby current typical at 5.5V
• 2-wire serial interface bus, I2C™ compatible
• 100 kHz (2.5V) and 400 kHz (5V) compatibility
• Self-timed write cycle (including auto-erase)
• Page write buffer for up to eight bytes
• 1,000,000 erase/write cycles ensured
• Data retention > 200 years
• ESD Protection > 4000V
• 8-pin PDIP and SOIC package
• Available for extended temperature ranges
- Commercial (C): 0°C to +70°C
- Industrial (I): -40°C to +85°C
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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