# FT24C64A-ETR-T

**FMD Fremont Micro Devices** · EEPROM · TSSOP-8

FT24C64A-ETR-T from FMD Fremont Micro Devices, in a TSSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A0 | input | Device address input, typically hardwired to VIH or VIL; if left unconnected it is internally recognized as VIL. |
| 2 | A1 | input | Device address input, typically hardwired to VIH or VIL; if left unconnected it is internally recognized as VIL. |
| 3 | A2 | input | Device address input, typically hardwired to VIH or VIL; if left unconnected it is internally recognized as VIL. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | SDA | bidirectional | Bi-directional open-drain serial data line, typically pulled high by an external resistor, that can be wired-OR with other open-drain devices and changes only while SCL is low. |
| 6 | SCL | input | Serial clock input whose rising edge latches data into the EEPROM and whose falling edge clocks data out of the EEPROM. |
| 7 | WP | input | Write protect: programming is allowed when left unconnected or at VIL and is disabled when connected to VIH or VCC, with read operations unaffected. |
| 8 | VCC | power_in | Power supply, 1.8 V to 5.5 V for the FT24C64A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | FMD Fremont Micro Devices |
| Package | TSSOP-8 |
| Category | Memory |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage | VCC1 | 1.8 |  | 5.5 | V | 24C××A supply VCC | 9 |
| Industrial operating temperature |  | -40 |  | 85 | ℃ |  | 2 |
| Storage temperature |  | -50 |  | 125 | ℃ |  | 2 |
| Input voltage on any pin relative to ground (lower limit) |  | -0.3 |  |  | V | Relative to ground; upper limit printed as VCC + 0.3V | 2 |
| Maximum voltage |  |  |  | 8 | V |  | 2 |
| Input low level | VIL | -0.6 |  |  | V | Max printed as VCC×0.3 | 9 |
| Supply read current | ICC |  | 0.4 | 1 | mA | VCC @ 5.0V SCL = 400 kHz | 9 |
| Supply write current | ICC |  | 2 | 3 | mA | VCC @ 5.0V SCL = 400 kHz | 9 |
| Supply current standby at 1.8V | ISB1 |  |  | 1 | µA | VCC @ 1.8V, VIN = VCC or VSS | 9 |
| Supply current standby at 2.5V | ISB2 |  |  | 1 | µA | VCC @ 2.5V, VIN = VCC or VSS | 9 |
| Supply current standby at 5.0V | ISB3 |  |  | 1 | µA | VCC @ 5.0V, VIN = VCC or VSS | 9 |
| Input leakage current | IIL |  |  | 3 | µA | VIN = VCC or VSS | 9 |
| Output leakage current | ILO |  |  | 3 | µA | VIN = VCC or VSS | 9 |
| Output low level | VOL2 |  |  | 0.4 | V | VCC @ 3.0V, IOL = 2.1 mA | 9 |
| Output low level | VOL1 |  |  | 0.2 | V | VCC @ 1.8V, IOL = 0.15 mA | 9 |
| Clock frequency, SCL | fSCL |  |  | 400 | kHz | 1.8V | 8 |
| Clock frequency, SCL | fSCL |  |  | 1000 | kHz | 2.5-5.0V | 8 |
| Clock pulse width low | tLOW | 1.2 |  |  | µs | 1.8V | 8 |
| Clock pulse width low | tLOW | 0.6 |  |  | µs | 2.5-5.0V | 8 |
| Clock pulse width high | tHIGH | 0.4 |  |  | µs | 1.8V | 8 |
| Clock pulse width high | tHIGH | 0.3 |  |  | µs | 2.5-5.0V | 8 |
| Noise suppression time | tI |  |  | 100 | ns | 1.8V; note 1 characterization only | 8 |
| Noise suppression time | tI |  |  | 50 | ns | 2.5-5.0V; note 1 characterization only | 8 |
| Clock low to data out valid | tAA | 0.3 |  | 1.2 | µs | 1.8V | 8 |
| Clock low to data out valid | tAA | 0.2 |  | 0.5 | µs | 2.5-5.0V | 8 |
| Bus free time before new transmission | tBUF | 1.3 |  |  | µs | 1.8V; note 1 characterization only | 8 |
| Bus free time before new transmission | tBUF | 1.2 |  |  | µs | 2.5-5.0V; note 1 characterization only | 8 |
| START hold time | tHD.STA | 0.6 |  |  | µs | 1.8V | 8 |
| START set-up time | tSU.STA | 0.6 |  |  | µs | 1.8V | 8 |
| Data in hold time | tHD.DAT | 0 |  |  | µs | 1.8V and 2.5-5.0V | 8 |
| Data in set-up time | tSU.DAT | 100 |  |  | ns | 1.8V and 2.5-5.0V | 8 |
| Input rise time | tR |  |  | 300 | ns | 1.8V and 2.5-5.0V; note 1 characterization only | 8 |
| Input fall time | tF |  |  | 300 | ns | 1.8V and 2.5-5.0V; note 1 characterization only | 8 |
| STOP set-up time | tSU.STO | 0.6 |  |  | µs | 1.8V and 2.5-5.0V | 8 |
| Data out hold time | tDH | 200 |  |  | ns | 1.8V | 8 |
| Data out hold time | tDH | 50 |  |  | ns | 2.5-5.0V | 8 |
| Write cycle time | tWR |  |  | 5 | ms | 1.8V and 2.5-5.0V | 8 |

## CAD (KiCad official)

- Symbol: `FT24C64A-ETR-T`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ft24c64a-etr-t-etched.step` / `ft24c64a-etr-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ft24c64a-etr-t.step` / `ft24c64a-etr-t.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [FMD Fremont Micro Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884354097958913) (18 pp, sha256 `8fe866cc9ddfd87f`, retrieved 2026-10-20, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/ft24c64a-etr-t-datasheet.pdf)