4 layers99.5 × 72 mm
One Air Max
Open-Air-Foundation/pcb-openair-max-main
Open Air Max is AirGradient's professional outdoor air quality monitor, designed for autonomous, off-grid operation.
242 partsCC-BY-SA-4.0
Overview
The AT24CM02-SSHD-B is an EEPROM made by Microchip Technology in a SOIC-8 package with 8 pins. -40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 100 Years 10ms 1MHz 2Mbit I2C SOIC-8 EEPROM ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:M24M02-DRMN6TP-TUDI, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 13 are in stock at JLCPCB (part C220680). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
From the datasheet
10- Supply, least
- 1.7 V · VCC, low voltage grade recommended minimum · p. 14
- Supply, most
- 5.5 V · VCC, low voltage grade recommended maximum · p. 14
- Supply, least
- 2.5 V · VCC, standard voltage grade recommended minimum · p. 14
- Supply, absolute maximum
- 6.25 V · VCC, absolute maximum relative to ground · p. 14
- Takes working
- 100 µA · VCC, typical read at 1.8 V, 400 kHz · p. 14
- Takes working
- 300 µA · VCC, typical read at 5.0 V, 1 MHz · p. 14
- Takes asleep
- 80 nA · VCC, typical standby at 1.8 V · p. 14
- Takes asleep
- 150 nA · VCC, typical standby at 5.5 V · p. 14
- A pin gives at most
- 5 mA · DC output current, absolute maximum · p. 14
- Data rate, most
- 1 Mbit/s · Fast Mode Plus maximum, VCC = 2.5 V to 5.5 V · p. 15
What it is and has
25- EEPROM memory
- 262,144 x 8 (2-Mbit, 256-Kbyte) · p. 1
- Interface
- I2C-compatible 2-wire serial · p. 1
- Standard Mode
- 100kHz, 1.7V to 5.5V · p. 1
- Fast Mode
- 400kHz, 1.7 to 5.5V · p. 1
- Fast Mode Plus
- 1MHz, 2.5V to 5.5V · p. 1
- Input noise suppression
- Schmitt trigger, filtered inputs · p. 1
- Write protection
- Full array hardware protection through WP pin · p. 1
- Page write
- 256 bytes · p. 1
- Write modes
- Byte write and partial page writes · p. 1
- Write cycle
- Self-timed, 10ms maximum · p. 1
- Read modes
- Random and sequential · p. 1
- Error correction
- Built-in error detection and correction · p. 1
- Endurance
- 1,000,000 write cycles · p. 1
- Data retention
- 100 years · p. 1
- Package options
- 8-lead JEDEC SOIC; thin or standard thickness 8-ball WLCSP · p. 1
- Package compliance
- Lead-free, halide-free, RoHS compliant · p. 1
- EEPROM memory
- 2-Mbit, 256-Kbyte, organized as 262,144 x 8 · p. 1
- Input filtering
- Schmitt trigger, filtered inputs for noise suppression · p. 1
- Write protection
- Write protect pin for full array hardware data protection · p. 1
- Page write
- 256-byte · p. 1
- Write modes
- Byte write and partial page writes allowed · p. 1
- Write cycle time
- 10ms maximum · p. 1
- Error correction
- Built in error detection and correction · p. 1
- Write endurance
- 1,000,000 write cycles · p. 1
- Package options
- 8-lead JEDEC SOIC and thin or standard thickness 8-ball WLCSP · p. 1
Around it
2- res not to exceed 10K
- between SDA and VCC; External SDA pull-up required; maximum value is stated across the SDA pin description lines. · p. 3
- res not specified
- between SCL and VCC; External pull-up recommended to keep SCL high when the bus is idle. · p. 5
Specifications
79| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Temperature under Bias | min -55 · max 125 °C | 14 | |
| Storage Temperature | min -65 · max 150 °C | 14 | |
| Supply Voltage with respect to ground | min -0.5 · max 6.25 V | 14 | |
| Voltage on any pin with respect to ground | min -1 · max 7 V | 14 | |
| DC Output Current | max 5 mA | 14 | |
| Operating Temperature (Case) | AT24CM02, Industrial Temperature Range | min -40 · max 85 °C | 14 |
| VCC Power Supply | AT24CM02, Low Voltage Grade | min 1.7 · max 5.5 V | 14 |
| VCC Power Supply | AT24CM02, Standard Voltage Grade | min 2.5 · max 5.5 V | 14 |
| Supply Voltage VCC1 | min 1.7 · max 5.5 V | 14 | |
| Supply Voltage VCC2 | min 2.5 · max 5.5 V | 14 | |
| Supply Current, Read ICC | VCC = 1.8V, Read at 400kHz; characterized but not 100% tested in production | typ 0.1 · max 0.5 mA | 14 |
| Supply Current, Read ICC | VCC = 5.0V, Read at 1MHz | typ 0.3 · max 1 mA | 14 |
| Supply Current, Write ICC1 | VCC = 1.8V, Averaged during tWR; characterized but not 100% tested in production | typ 0.4 · max 1 mA | 14 |
| Supply Current, Write ICC1 | VCC = 5.0V, Averaged during tWR | typ 1.7 · max 3 mA | 14 |
| Standby Current ISB | VCC = 1.8V, VIN = VCC or VSS; characterized but not 100% tested in production | typ 0.08 · max 1 uA | 14 |
| Standby Current ISB | VCC = 2.5V, VIN = VCC or VSS | typ 0.08 · max 2 uA | 14 |
| Standby Current ISB | VCC = 5.5V, VIN = VCC or VSS | typ 0.15 · max 3 uA | 14 |
| Input Leakage Current ILI | VIN = VCC or VSS | typ 0.1 · max 3 uA | 14 |
| Output Leakage Current ILO | VOUT = VCC or VSS | typ 0.05 · max 3 uA | 14 |
| Input Low Level(2) VIL | Maximum = VCC x 0.3; characterized but not 100% tested in production | min -0.6 V | 14 |
| Output Low Level VOL1 | VCC = 1.7V, IOL = 0.15mA | max 0.2 V | 14 |
| Output Low Level VOL2 | VCC = 3.0V, IOL = 2.1mA | max 0.4 V | 14 |
| Clock Frequency, SCL fSCL | Standard Mode, VCC = 1.7V to 5.5V | max 100 kHz | 15 |
| Clock Frequency, SCL fSCL | Fast Mode, VCC = 1.7V to 5.5V | max 400 kHz | 15 |
| Clock Frequency, SCL fSCL | Fast Mode Plus, VCC = 2.5V to 5.5V | max 1000 kHz | 15 |
| Clock Pulse Width Low tLOW | Standard Mode, VCC = 1.7V to 5.5V | min 4700 ns | 15 |
| Clock Pulse Width Low tLOW | Fast Mode, VCC = 1.7V to 5.5V | min 1300 ns | 15 |
| Clock Pulse Width Low tLOW | Fast Mode Plus, VCC = 2.5V to 5.5V | min 500 ns | 15 |
| Clock Pulse Width High tHIGH | Standard Mode, VCC = 1.7V to 5.5V | min 4000 ns | 15 |
| Clock Pulse Width High tHIGH | Fast Mode, VCC = 1.7V to 5.5V | min 600 ns | 15 |
| Clock Pulse Width High tHIGH | Fast Mode Plus, VCC = 2.5V to 5.5V | min 400 ns | 15 |
| Input Filter Spike Rejection (SCL, SDA) tI | Standard Mode, VCC = 1.7V to 5.5V; characterized, not 100% tested | max 100 ns | 15 |
| Input Filter Spike Rejection (SCL, SDA) tI | Fast Mode, VCC = 1.7V to 5.5V; characterized, not 100% tested | max 100 ns | 15 |
| Input Filter Spike Rejection (SCL, SDA) tI | Fast Mode Plus, VCC = 2.5V to 5.5V; characterized, not 100% tested | max 50 ns | 15 |
| Clock Low to Data Out Valid tAA | Standard Mode, VCC = 1.7V to 5.5V | max 4500 ns | 15 |
| Clock Low to Data Out Valid tAA | Fast Mode, VCC = 1.7V to 5.5V | max 900 ns | 15 |
| Clock Low to Data Out Valid tAA | Fast Mode Plus, VCC = 2.5V to 5.5V | max 450 ns | 15 |
| Bus Free Time between Stop and Start tBUF | Standard Mode, VCC = 1.7V to 5.5V; characterized, not 100% tested | min 4700 ns | 15 |
| Bus Free Time between Stop and Start tBUF | Fast Mode, VCC = 1.7V to 5.5V; characterized, not 100% tested | min 1300 ns | 15 |
| Bus Free Time between Stop and Start tBUF | Fast Mode Plus, VCC = 2.5V to 5.5V; characterized, not 100% tested | min 500 ns | 15 |
| Start Hold Time tHD.STA | Standard Mode, VCC = 1.7V to 5.5V | min 4000 ns | 15 |
| Start Hold Time tHD.STA | Fast Mode, VCC = 1.7V to 5.5V | min 600 ns | 15 |
| Start Hold Time tHD.STA | Fast Mode Plus, VCC = 2.5V to 5.5V | min 250 ns | 15 |
| Start Set-up Time tSU.STA | Standard Mode, VCC = 1.7V to 5.5V | min 4700 ns | 15 |
| Start Set-up Time tSU.STA | Fast Mode, VCC = 1.7V to 5.5V | min 600 ns | 15 |
| Start Set-up Time tSU.STA | Fast Mode Plus, VCC = 2.5V to 5.5V | min 250 ns | 15 |
| Data In Hold Time tHD.DAT | Standard Mode, VCC = 1.7V to 5.5V | min 0 ns | 15 |
| Data In Hold Time tHD.DAT | Fast Mode, VCC = 1.7V to 5.5V | min 0 ns | 15 |
| Data In Hold Time tHD.DAT | Fast Mode Plus, VCC = 2.5V to 5.5V | min 0 ns | 15 |
| Data In Set-up Time tSU.DAT | Standard Mode, VCC = 1.7V to 5.5V | min 200 ns | 15 |
| Data In Set-up Time tSU.DAT | Fast Mode, VCC = 1.7V to 5.5V | min 100 ns | 15 |
| Data In Set-up Time tSU.DAT | Fast Mode Plus, VCC = 2.5V to 5.5V | min 100 ns | 15 |
| Inputs Rise Time tR | Standard Mode, VCC = 1.7V to 5.5V; characterized, not 100% tested | max 1000 ns | 15 |
| Inputs Rise Time tR | Fast Mode, VCC = 1.7V to 5.5V; characterized, not 100% tested | max 300 ns | 15 |
| Inputs Rise Time tR | Fast Mode Plus, VCC = 2.5V to 5.5V; characterized, not 100% tested | max 100 ns | 15 |
| Inputs Fall Time tF | Standard Mode, VCC = 1.7V to 5.5V; characterized, not 100% tested | max 300 ns | 15 |
| Inputs Fall Time tF | Fast Mode, VCC = 1.7V to 5.5V; characterized, not 100% tested | max 300 ns | 15 |
| Inputs Fall Time tF | Fast Mode Plus, VCC = 2.5V to 5.5V; characterized, not 100% tested | max 100 ns | 15 |
| Stop Set-up Time tSU.STO | Standard Mode, VCC = 1.7V to 5.5V | min 4700 ns | 15 |
| Stop Set-up Time tSU.STO | Fast Mode, VCC = 1.7V to 5.5V | min 600 ns | 15 |
| Stop Set-up Time tSU.STO | Fast Mode Plus, VCC = 2.5V to 5.5V | min 250 ns | 15 |
| Write Protect Setup Time tSU.WP | Standard Mode, VCC = 1.7V to 5.5V | min 4000 ns | 15 |
| Write Protect Setup Time tSU.WP | Fast Mode, VCC = 1.7V to 5.5V | min 600 ns | 15 |
| Write Protect Setup Time tSU.WP | Fast Mode Plus, VCC = 2.5V to 5.5V | min 250 ns | 15 |
| Write Protect Hold Time tHD.WP | Standard Mode, VCC = 1.7V to 5.5V | min 4000 ns | 15 |
| Write Protect Hold Time tHD.WP | Fast Mode, VCC = 1.7V to 5.5V | min 600 ns | 15 |
| Write Protect Hold Time tHD.WP | Fast Mode Plus, VCC = 2.5V to 5.5V | min 250 ns | 15 |
| Data Out Hold Time tDH | Standard Mode, VCC = 1.7V to 5.5V | min 100 ns | 15 |
| Data Out Hold Time tDH | Fast Mode, VCC = 1.7V to 5.5V | min 50 ns | 15 |
| Data Out Hold Time tDH | Fast Mode Plus, VCC = 2.5V to 5.5V | min 50 ns | 15 |
| Write Cycle Time tWR | Standard Mode, VCC = 1.7V to 5.5V | max 10 ms | 15 |
| Write Cycle Time tWR | Fast Mode, VCC = 1.7V to 5.5V | max 10 ms | 15 |
| Write Cycle Time tWR | Fast Mode Plus, VCC = 2.5V to 5.5V | max 10 ms | 15 |
| Time required after VCC is stable before the device can accept commands tPUP | min 100 us | 16 | |
| Power-On Reset Threshold Voltage VPOR | max 1.5 V | 16 | |
| Minimum time at VCC = 0V between power cycles tPOFF | VCC = 0V | min 1 ms | 16 |
| Input/Output Capacitance (SDA) CI/O | TA = 25°C, f = 1.0MHz, VCC = 5.5V; VI/O = 0V | max 8 pF | 16 |
| Input Capacitance (A2, SCL) CIN | TA = 25°C, f = 1.0MHz, VCC = 5.5V; VIN = 0V | max 6 pF | 16 |
| Data Retention | TA = 55°C, VCC(min) < VCC < VCC(max) | min 100 Years | 16 |
Pins, by the datasheet
8- 1 NC
- Not bonded to a die pad; connect to GND or leave floating. · p. 3
- 2 NC
- Not bonded to a die pad; connect to GND or leave floating. · p. 3
- 3 A2
- Device address input; connect to VCC or GND to select one of two devices on the bus. Internally pulled down when undriven. · p. 3
- 4 GND
- Power supply ground reference; connect to system ground. · p. 3
- 5 SDA
- Bidirectional serial data; requires an external pull-up resistor not exceeding 10KΩ. · p. 3
- 6 SCL
- Serial clock; input data is latched on rising edges and output data is clocked on falling edges. Force high or pull high externally when idle. · p. 3
- 7 WP
- Write protect; GND permits writes and VCC inhibits all writes. Internally pulled down when undriven. · p. 3
- 8 VCC
- Device power supply. · p. 3
Parameters
16- Access Time
- 450ns
- Clock Frequency
- 1MHz
- Current - Supply
- 100uA
- Data Rate
- 1Mbps
- Data Retention - TDR (Year)
- 100 years
- Features
- Hardware write protection function
- Interface
- I2C
- Memory Size
- 2Mbit
- Operating Current
- 1.7mA
- Operating Temperature
- -40℃~+85℃
- Output Current per Pin(Max)
- 5mA
- Standby Current
- 0.08uA
- Voltage - Supply
- 1.7V~5.5V
- Voltage - Supply(Absolute Max)
- 6.25V
- Write Cycle Endurance
- 1,000,000 cycles
- Write Cycle Time(Tw)
- 10ms
Order codes
1- AT24CM02-SSHD-BLCSC C220680
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | NC | Unspecified |
| 2 | NC | Unspecified |
| 3 | A2 | Unspecified |
| 4 | GND | Unspecified |
| 5 | SDA | Unspecified |
| 6 | SCL | Unspecified |
| 7 | WP | Unspecified |
| 8 | VCC | Unspecified |
Open-source boards using it
All 1Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/microchip/AT24CM02-SSHD-B" title="AT24CM02-SSHD-B in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/AT24CM02-SSHD-B.jpg" alt="AT24CM02-SSHD-B" width="1200" height="900">[](https://pcbkit.io/parts/microchip/AT24CM02-SSHD-B)Questions
Is there a KiCad symbol and footprint for the AT24CM02-SSHD-B?
Yes. The symbol is EasyEDA_Cloud:M24M02-DRMN6TP-TUDI and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the AT24CM02-SSHD-B?
SOIC-8, with 8 pins. Its footprint is drawn on this page.
Where is the AT24CM02-SSHD-B datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the AT24CM02-SSHD-B?
JLCPCB lists it as part C220680, with 13 in stock; the sellers' links on this page open their listings.
What can replace the AT24CM02-SSHD-B?
Parts like it in the library: the M24C64-RMN6TP by STMicroelectronics, the M24512-RMN6TP by STMicroelectronics, the AT24C08C-SSHM-T by Microchip Technology and the AT24C256C-SSHL-T by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the AT24CM02-SSHD-B?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
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