23LC1024
Serial SRAMThe 23LC1024 is a serial sram from Microchip Technology. View the full 23LC1024 datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
Official 23LC1024 datasheet (PDF) — the source this page was extracted from.
Manufacturer
Microchip TechnologyCategory
Memory ICs23LC1024 Key Specifications
| Parameter | Value |
|---|---|
| Endurance | Unlimited read/write cycles |
| Page Size | 32 bytes |
| Interfaces | SPI, SDI (dual), SQI (quad) |
| Memory Size | 1 Mbit (128K x 8) |
| Read Current | 3 mA typ at 5.5V, 20 MHz |
| Standby Current | 4 µA typ at 5.5V (max 10 µA) |
| Absolute Max VCC | 6.5V |
| Max Clock Frequency | 20 MHz |
| Supply Voltage (VCC) | 2.5V to 5.5V |
| Operating Temperature | -40°C to +85°C |
| Data Retention Voltage | 1.0V typ |
23LC1024 Overview
Part: 23LC1024 — Microchip Technology Inc.
Type: 1 Mbit SPI Serial SRAM
Description: 1 Mbit (128K x 8-bit) Serial SRAM with SPI, SDI, and SQI interface, supporting 20 MHz clock rates and operating from 2.5V to 5.5V.
Operating Conditions:
- Supply voltage: 2.5–5.5V
- Operating temperature: -40 to +85 °C
- Max clock frequency: 20 MHz
Absolute Maximum Ratings:
- Max supply voltage: 6.5V
- Max junction/storage temperature: +150 °C
Key Specs:
- Read current: 3 mA (at 5.5V, 20 MHz)
- Standby current: 4 μA (at 5.5V, +85°C)
- Input leakage current: ±1 μA
- Output leakage current: ±1 μA
- Input capacitance: 7 pF (VCC = 0V, f = 1 MHz, Ta = 25°C)
- High-level output voltage: VCC -0.5 V (IOH = -400 μA)
- Low-level output voltage: 0.2 V (IOL = 1 mA)
- Data setup time: 10 ns
Features:
- SPI-Compatible Bus Interface: SPI/SDI/SQI mode
- Low-Power CMOS Technology
- Unlimited Read and Write Cycles
- Zero Write Time
- 128K x 8-bit Organization with 32-byte page
- Byte, Page and Sequential mode for Reads and Writes
- High Reliability
- Pb-Free and RoHS Compliant, Halogen Free
Applications:
Package:
- 8 Lead SOIC
- 8 Lead TSSOP
- 8 Lead PDIP
23LC1024 Features
- SPI-Compatible Bus Interface:
- -20 MHz Clock rate
- -SPI/SDI/SQI mode
- Low-Power CMOS Technology:
- -Read Current: 3 mA at 5.5V, 20 MHz
- -Standby Current: 4 A at +85°C
- Unlimited Read and Write Cycles
- Zero Write Time
- 128K x 8-bit Organization:
- -32-byte page
- Byte, Page and Sequential mode for Reads and Writes
- High Reliability
- Temperature Range Supported:
- -Industrial (I): -40 C to +85 C
- Pb-Free and RoHS Compliant, Halogen Free
- 8 Lead SOIC, TSSOP and PDIP Packages
23LC1024 Pin Configuration
| Name | Function |
|---|---|
| CS | Chip Select Input |
| SO/SIO1 | Serial Output/SDI/SQI Pin |
| SIO2 | SQI Pin |
| Vss | Ground |
| SI/SIO0 | Serial Input/SDI/SQI Pin |
| SCK | Serial Clock |
| HOLD/SIO3 | Hold/SQI Pin |
| Vcc | Power Supply |
23LC1024 Electrical Characteristics
| DC CHARACTERISTICS | DC CHARACTERISTICS | DC CHARACTERISTICS | Industrial (I): T A = -40°C to +85°C | Industrial (I): T A = -40°C to +85°C | Industrial (I): T A = -40°C to +85°C | Industrial (I): T A = -40°C to +85°C | Industrial (I): T A = -40°C to +85°C |
|---|---|---|---|---|---|---|---|
| Param. No. | Sym. | Characteristic | Min. | Typ (1) | Max. | Units | Test Conditions |
| D001 | VCC | Supply voltage | 1.7 2.5 | - | 2.2 5.5 | V | 23A1024 23LC1024 |
| D002 | VIH | High-level input voltage | .7 VCC | - | VCC +0.3 | V | |
| D003 | VIL | Low-level input voltage | -0.3 | - | 0.2xVCC 0.10xVCC | V | 23A1024 23LC1024 |
| D004 | VOL | Low-level output voltage | - | - | 0.2 | V | I OL = 1 mA |
| D005 | VOH | High-level output voltage | VCC -0.5 | - | - | V | IOH = -400 A |
| D006 | I LI | Input leakage current | - | - | ±1 | A | CS = VCC, VIN = VSS OR VCC |
| D007 | I LO | Output leakage current | - | - | ±1 | A | CS = VCC, VOUT = VSS OR VCC |
| D008 | ICC Read | Operating current | - - | 1 3 | 10 10 | mA mA | FCLK = 20 MHz; SO = O, 2.2V FCLK = 20 MHz; SO = O, 5.5V |
| D009 | ICCS | Standby current | - - | 1 4 | 4 10 | A ← A | CS = VCC = 2.2V, Inputs tied to VCC or VSS CS = VCC = 5.5V, Inputs tied to VCC or VSS |
| D010 | CINT | Input capacitance | 7 | pF | VCC = 0V, f = 1 MHz, Ta = 25°C (Note 1) | ||
| D011 | VDR | RAM data retention voltage (2) | - | 1.0 | - | V |
| AC CHARACTERISTICS | AC CHARACTERISTICS | AC CHARACTERISTICS | Industrial (I): T A = -40°C to +85°C | Industrial (I): T A = -40°C to +85°C | Industrial (I): T A = -40°C to +85°C | Industrial (I): T A = -40°C to +85°C |
|---|---|---|---|---|---|---|
| Param. No. | Sym. | Characteristic | Min. | Max. | Units | Test Conditions |
| 1 | FCLK | Clock frequency | - | 20 | MHz | |
| 2 | T CSS | CS setup time | 25 | - | ns | |
| 3 | T CSH | CS hold time | 50 | - | ns | |
| 4 | T CSD | CS disable time | 25 | - | ns | |
| 5 | Tsu | Data setup time | 10 | - | ns | |
| 6 | THD | Data hold time | 10 | - | ns | |
| 7 | TR | CLK rise time | - | 20 | ns | Note 1 |
| 8 | TF | CLK fall time | - | 20 | ns | Note 1 |
| 9 | THI | Clock high time | 25 | - | ns | |
| 10 | TLO | Clock low time | 25 | - | ns | |
| 11 | T CLD | Clock delay time | 25 | - | ns | |
| 12 | TV | Output valid from clock low | - | 25 | ns | |
| 13 | THO | Output hold time | 0 | - | ns | Note 1 |
| 14 | TDIS | Output disable time | - | 20 | ns | |
| 15 | THS | HOLD setup time | 10 | - | ns | - |
| 16 | THH | HOLD hold time | 10 | - | ns | - |
| 17 | THZ | HOLD low to output High-Z | 10 | - | ns | - |
| 18 | THV | HOLD high to output valid | - | 50 | ns | - |
Note 1: This parameter is periodically sampled and not 100% tested.
TABLE 1-3: AC TEST CONDITIONS
| AC Waveform: | AC Waveform: |
|---|---|
| Input pulse level | 0.1 VCC to 0.9 VCC |
| Input rise/fall time | 5 ns |
| Operating temperature | -40°C to +85°C |
| CL = 30 pF | - |
| Timing Measurement Reference Level: | Timing Measurement Reference Level: |
| Input | 0.5 VCC |
| Output | 0.5 VCC |
23LC1024 Absolute Maximum Ratings
- All inputs and outputs w.r.t. VSS ......................................................................................................... -0.3V to VCC +0.3V
- Storage temperature ...............................................................................................................................-65°C to +150°C
- Ambient temperature under bias...............................................................................................................-40°C to +85°C
† NOTICE : Stresses above those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for an extended period of time may affect device reliability.
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| 23A1024 | Microchip Technology | — |
| 23LC1024-I/P | Microchip Technology | 8-Lead PDIP |
| 23LC1024-I/SN | Microchip Technology | SOIC-8 |
| 23X1024 | Microchip Technology | — |
Other Memory ICs
- CH347T – WCH, Serial SLC NAND Flash Memory
- M24512-DFMC6TG – STMicroelectronics, EEPROM
- ST25DV04KC-JF6L3 – STMicroelectronics, Dynamic NFC/RFID Tag IC
- ZD25WQ16CTIGT – Zetta, Serial Multi I/O NOR Flash
- W25Q32JVSSIQ – Winbond
- 23A1024 – Microchip Technology, Serial SRAM
- 23LC1024-I/P – Microchip Technology, Serial SRAM
- 23LC1024-I/SN – Microchip Technology, Serial SRAM
All Memory ICs datasheetsAll Microchip Technology datasheets (599)
Ask your AI agent about the 23LC1024
Connect SheetsData to Claude, Cursor, Codex or any MCP client and your agent reads this datasheet for you: pinout, limits, register maps and design checks, with the numbers taken from the PDF.
claude mcp add --transport http sheetsdata https://mcp.sheetsdata.com/mcp
Then ask: "Can the 23LC1024 run from my 12 V rail? Check it against the datasheet limits."
Create a free account $2 of usage every month, no card needed.