93LC46A/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
93LC46A/P is a 1 Kbit Microwire-compatible serial EEPROM from Microchip in an 8-pin PDIP package. It supports up to 2 MHz clock, 1 million write/erase cycles, and 200-year data retention for reliable embedded configuration storage.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93LC46A/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2500(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1 Kbit (128 x 8-bit) serial EEPROM memory
- Microwire-compatible 3-wire serial interface
- Clock frequency up to 2 MHz
- 1 million write/erase cycle endurance
- 200-year minimum data retention
- Through-hole 8-pin PDIP for easy prototyping
Applications
The 93LC46A/P is used in embedded systems that need a small, low-cost non-volatile memory for storing configuration data, calibration constants, or device identifiers. Its Microwire serial interface simplifies connection to microcontrollers in consumer electronics, industrial sensors, and automotive trim modules where only a few kilobits of persistent storage are required.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 16Weeks |
| YTEOL | 5.3 |
| Clock Frequency-Max (fCLK) | 2MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Memory Density | 1024bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 128words |
| Number of Words Code | 128 |
| Operating Mode | SYNCHRONOUS |
| Organization | 128X8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Parallel/Serial | SERIAL |
| Programming Voltage | 4.5V |
| Qualification Status | Not Qualified |
| Serial Bus Type | MICROWIRE |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.0015mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | HARDWARE/SOFTWARE |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 93LC46A/P:
Frequently Asked Questions
How many write/erase cycles can the 93LC46A/P endure, and what does that mean for systems that update data frequently?
The 93LC46A/P is rated for 1 million write/erase cycles per address location. For an application that updates a configuration byte once per day, this endurance translates to over 2,700 years of operation before the first cell wear-out, far exceeding most product lifetimes.
At what clock frequency does the 93LC46A/P operate, and how does the Microwire interface connect to a standard microcontroller?
The 93LC46A/P supports a maximum clock frequency of 2 MHz on its 3-wire Microwire interface (CS, CLK, DI/DO). Most 8-bit and 32-bit microcontrollers can drive this protocol through their SPI peripheral with the chip-select line bit-banged or hardware-controlled, requiring only 3 to 4 GPIO pins.
Why might an engineer choose the 93LC46A/P PDIP over a surface-mount 93LC46 variant for a prototype or low-volume production board?
The 8-pin PDIP through-hole package allows the 93LC46A/P to be inserted directly into a breadboard or solderless socket during development, eliminating the need for SMD rework tools. For low-volume builds of fewer than 500 units, hand-assembly of through-hole parts is faster and more forgiving than placing 1.27 mm pitch SOIC devices.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3900 | $0.39 |
| 25+ | $0.3800 | $9.50 |
| 120+ | $0.3700 | $44.40 |
| 300+ | $0.2600 | $78.00 |
| 1000+ | $0.2550 | $255.00 |
| 2000+ | $0.2500 | $500.00 |
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