My Inquiry
My Account
Microchip Technology AT24C01C-SSHM-B
- Part No.:
- AT24C01C-SSHM-B
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C01C-SSHM-B.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,434
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT24C01C-SSHM-B from Microchip Technology is a 1-Kbit (128 × 8) I²C-compatible serial EEPROM with low-voltage operation (1.7V to 5.5V), industrial temperature range (−40°C to +85°C), and hardware write protection via the WP pin. It supports Standard (100 kHz), Fast (400 kHz), and Fast Mode Plus (1 MHz) I²C speeds and delivers ultra-low standby current (6 μA max) for battery-powered sensor nodes and embedded control systems.
For engineers reviewing the AT24C01C-SSHM-B datasheet, AT24C01C-SSHM-B pinout, AT24C01C-SSHM-B application, or AT24C01C-SSHM-B equivalent, key selection criteria include its 8-pin SOIC package, 1.7V minimum VCC, 5 ms max write cycle time, page-write capability, and hardware address inputs (A0–A2) enabling up to eight devices on one I²C bus.
Technical Context
The AT24C01C-SSHM-B operates as an I²C slave device with bidirectional SDA and unidirectional SCL interfaces, incorporating Schmitt triggers and input filtering for noise immunity. Its internal architecture includes a 128-word × 8-bit EEPROM array, address register/counter, hardware address comparator, and high-voltage generation circuit for write operations.
It implements standard I²C protocol timing-including Start/Stop detection, ACK/NACK handshaking, and clock stretching during internal writes-and features Power-on Reset (POR) with 100 µs tPUP delay and VPOR threshold of 1.5 V to prevent spurious writes during power-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Kbit (128 × 8), organized in 16 pages of 8 bytes each |
| VCC range | 1.7 V to 5.5 V - enables direct interface with 1.8 V, 3.3 V, and 5 V microcontrollers without level shifters |
| I²C speed modes | 100 kHz (Std), 400 kHz (Fast), 1 MHz (FM+) - FM+ requires ≥2.5 V VCC and supports higher throughput in compact systems |
| Write endurance | 1,000,000 cycles - supports frequent calibration data logging in industrial controllers |
| Data retention | 100 years at 55°C - ensures long-term firmware parameter storage in sealed enclosures |
| Standby current | 6 μA max at 5.5 V - extends battery life in wireless sensor endpoints and portable diagnostics tools |
| Write cycle time | ≤5 ms - allows deterministic timeout handling in real-time firmware without polling delays |
Pinout & Package
AT24C01C-SSHM-B is supplied in an 8-lead SOIC package (SOIC-8, 150 mil width), with pins arranged in dual-in-line configuration and surface-mount compatible footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Hardware device address input | Configures LSB of 7-bit I²C slave address; tied low or high to enable up to eight devices on same bus |
| A1 | Hardware device address input | Configures middle bit of slave address; must be externally biased-internally pulled down if floating |
| A2 | Hardware device address input | Configures MSB of slave address; same biasing requirement as A0/A1 for deterministic addressing |
| GND | Ground reference | System return path for VCC and signal logic; must be low-impedance connection to minimize noise coupling |
| SDA | Serial data bidirectional I/O | Open-drain line requiring external pull-up (≤10 kΩ); shared across multiple I²C slaves on same bus |
| SCL | Serial clock input | Master-generated clock; rising edge latches input, falling edge outputs data; also requires pull-up |
| WP | Write-protect control | Hardwired to GND for full write access; tied to VCC to disable all memory writes-critical for firmware-safe boot configurations |
| VCC | Power supply input | Supplies core logic and EEPROM programming voltage; must ramp monotonically at ≤0.1 V/µs for reliable POR |
Key Features
| Feature | Design Value |
|---|---|
| Page write mode (8-byte) | Enables burst writes within single page boundary-reduces I²C transaction overhead vs. byte-by-byte writes |
| Schmitt-trigger inputs | Rejects fast transients and EMI-induced glitches on SCL/SDA-improves robustness in electrically noisy motor-control environments |
| Hardware write protection (WP) | Prevents accidental overwrites during firmware updates or brown-out conditions-no software dependency required |
| Ultra-low standby current (6 μA) | Minimizes quiescent drain in always-on IoT edge nodes powered by coin cells or energy harvesters |
| ESD protection >4 kV | Withstands HBM-level electrostatic discharge during board assembly and field handling-reduces test yield loss |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
Use Scenario: Storing factory-calibrated offset/gain coefficients for analog front-end sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed at power-up and during field recalibration; no timing-critical reads-only sequential or random access during maintenance windows. Use Value: Enables plug-and-play sensor replacement without reprogramming host MCU; 100-year data retention ensures calibration validity over equipment lifetime. | Use Scenario: Holding user-configurable therapy parameters (e.g., dosage limits, alarm thresholds) in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, low-power configuration memory updated infrequently but read at every power-on; WP pin hardwired to prevent runtime corruption. Use Value: Meets IEC 62304 safety requirements for persistent settings; 1.7 V operation supports brown-out resilience during battery swap. |
| Smart Meter Firmware Patch Storage | Automotive Body Control Module (BCM) Settings |
Use Scenario: Storing delta patches applied to main MCU firmware during OTA updates in electricity/water meters. IC Role / Device Role / Timing Role: Secondary code storage with atomic write capability; accessed only during update sequence-no concurrent reads during writes. Use Value: Isolates patch data from main flash, enabling rollback and reducing risk of bricking; 1M endurance supports 10+ years of field updates. | Use Scenario: Retaining user preferences (mirror position, seat memory, lighting profiles) in automotive BCMs across ignition cycles. IC Role / Device Role / Timing Role: Low-latency, high-reliability nonvolatile memory accessed during vehicle start-up and driver entry sequences. Use Value: −40°C to +85°C rating ensures operation in under-hood environments; 5 ms write time allows saving settings before sleep mode entry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C01D-SSHM-T | Same 1-Kbit capacity and SOIC-8 package; newer revision with enhanced ESD (6 kV HBM) and tighter tWR spec (4.5 ms max) | Preferred for new designs requiring extended reliability certification or faster write confirmation | Select AT24C01D-SSHM-T when qualifying for automotive AEC-Q100 or medical ISO 13485 programs |
| M24C01-RMN6TP | 1-Kbit I²C EEPROM in SOIC-8; supports 1 MHz FM+ at 1.8 V min; lower ICC1 (0.2 mA typ at 5 V) | Better suited for ultra-low-power wearables where active current dominates battery budget | Choose M24C01-RMN6TP when system-level active current must stay below 0.5 mA average |
Compared with AT24C01C-SSHM-B, AT24C01D-SSHM-T offers improved process robustness and margin for high-volume automotive production, while M24C01-RMN6TP provides superior active-current efficiency at the cost of reduced write endurance (400k cycles) and no WP pin-making it ideal for consumer-grade portable electronics where write frequency is low.
Availability
AT24C01C-SSHM-B is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, smart meter firmware patch storage, and automotive body control module settings requiring stable component supply across multi-year production cycles.
Supply support for AT24C01C-SSHM-B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with ISO 9001-certified manufacturing and global distribution.
The AT24C01C-SSHM-B belongs to Microchip's legacy AT24Cxx serial EEPROM product line, designed specifically for cost-sensitive, low-power embedded systems requiring reliable nonvolatile storage with minimal board space and wiring.
FAQ
What is the maximum I²C clock frequency supported by AT24C01C-SSHM-B?
The AT24C01C-SSHM-B supports three I²C speed modes: Standard mode up to 100 kHz (1.7V–5.5V), Fast mode up to 400 kHz (1.7V–5.5V), and Fast Mode Plus up to 1 MHz (2.5V–5.5V). The 1 MHz mode requires VCC ≥ 2.5 V and is not guaranteed below that voltage. All timing complies with NXP I²C-bus specification Rev. 6.
Does AT24C01C-SSHM-B require external pull-up resistors on SDA and SCL lines?
Yes, AT24C01C-SSHM-B requires external pull-up resistors on both SDA and SCL lines because its SDA pin is open-drain and SCL is a CMOS input. Microchip specifies maximum pull-up values of 10 kΩ for 100 kHz, 4 kΩ for 400 kHz, and 1.3 kΩ for 1 MHz operation-values chosen to meet rise-time requirements under specified bus capacitance (≤100 pF).
How does the Write-Protect (WP) pin function on AT24C01C-SSHM-B?
When the WP pin of AT24C01C-SSHM-B is driven to VCC, all write operations-including byte, page, and erase-are inhibited. When WP is at GND, normal write functionality is enabled. If left floating, WP is internally pulled down to GND, but Microchip recommends hardwiring it to avoid noise-induced false protection activation in noisy environments.
Can AT24C01C-SSHM-B operate reliably at 1.7 V supply voltage?
Yes, AT24C01C-SSHM-B is fully specified for operation at 1.7 V, including all DC and AC parameters: 100 kHz I²C communication, 6 μA max standby current, and valid read/write functionality. However, 1 MHz Fast Mode Plus is not supported below 2.5 V, and tWR remains ≤5 ms across the full 1.7–5.5 V range per DS20006111A.
What is the memory organization of AT24C01C-SSHM-B?
AT24C01C-SSHM-B contains 1,024 bits organized as 128 words × 8 bits. Internally, it is structured as 16 pages of 8 bytes each, supporting both byte-write and page-write operations. The page boundary is fixed at 8-byte alignment, and partial page writes are permitted-enabling efficient updates of sub-page data without erasing adjacent bytes.
AT24C01C-SSHM-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 550 ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT24C01C-SSHM-B FAQ
1.How can I place an order for AT24C01C-SSHM-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C01C-SSHM-B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AT24C01C-SSHM-B reliable?
The price and inventory of AT24C01C-SSHM-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C01C-SSHM-B is usually 5 days.
3.What payment methods are accepted for AT24C01C-SSHM-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C01C-SSHM-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C01C-SSHM-B?
AT24C01C-SSHM-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C01C-SSHM-B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AT24C01C-SSHM-B?
For technical support, including AT24C01C-SSHM-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C01C-SSHM-B requirements.
6.How does Aetrix verify that AT24C01C-SSHM-B is sourced from the original manufacturer or authorized distributors?
All AT24C01C-SSHM-B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT24C01C-SSHM-B meets industry standards.
7.What is the process for return or replacement of AT24C01C-SSHM-B?
All AT24C01C-SSHM-B units undergo pre-shipment inspection (PSI). If there is an issue with AT24C01C-SSHM-B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AT24C01C-SSHM-B part is unused and in its original packaging.
Return procedure for AT24C01C-SSHM-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C01C-SSHM-B Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
