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Contents

README

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CAT25640YI-GT3

onsemi · EEPROM · TSSOP-8

CAT25640YI-GT3 from onsemi, 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 CS input Chip select input enables the device; a high-to-low transition starts each session and a low-to-high transition ends it, and SO is tri-stated while CS is high.
2 SO tri_state Serial data output shifts data out on the falling edge of SCK in SPI modes (0,0) and (1,1) and is high impedance when CS is high or HOLD is asserted.
3 WP input Write protect input allows all write operations when high; when low with the WPEN bit set to 1, writes to the Status Register are disabled.
4 VSS power_in Ground reference for the device.
5 SI input Serial data input accepts op-codes, addresses and data, and is latched on the rising edge of SCK.
6 SCK input Serial clock input provided by the host to synchronize communication with the device.
7 HOLD input Hold input pauses serial transmission when taken low while SCK is low and resumes when taken high while SCK is low; tie to VCC when not used.
8 VCC power_in Power supply input, 1.8 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer onsemi
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
Operating Temperature -45 130 °C 2
Storage Temperature -65 150 °C 2
Voltage on any Pin with Respect to Ground -0.5 6.5 V Note 1 2
Supply Voltage Range VCC 1.8 5.5 V TA = −40°C to +85°C 2
Ambient Temperature (Industrial) TA -40 85 °C VCC = 1.8 V to 5.5 V 2
Supply Current (Read Mode) ICCR 0.2 mA Read, SO open / −40°C to +85°C; VCC = 1.8 V, fSCK = 5 MHz 3
Supply Current (Read Mode) ICCR 0.3 mA Read, SO open / −40°C to +85°C; VCC = 2.5 V, fSCK = 10 MHz 3
Supply Current (Read Mode) ICCR 0.6 mA Read, SO open / −40°C to +85°C; VCC = 5.5 V, fSCK = 20 MHz 3
Supply Current (Write Mode) ICCW 0.8 mA Write, CS = VCC / −40°C to +85°C; VCC = 1.8 V 3
Supply Current (Write Mode) ICCW 1.4 mA Write, CS = VCC / −40°C to +85°C; VCC = 2.5 V 3
Supply Current (Write Mode) ICCW 2 mA Write, CS = VCC / −40°C to +85°C; VCC = 5.5 V 3
Standby Current ISB1 1 µA VIN = GND or VCC, CS = VCC, WP = VCC, VCC = 5.5 V; TA = −40°C to +85°C 3
Standby Current ISB1 3 µA VIN = GND or VCC, CS = VCC, WP = VCC, VCC = 5.5 V; TA = −40°C to +125°C 3
Standby Current ISB2 5 µA VIN = GND or VCC, CS = VCC, WP = GND, VCC = 5.5 V; TA = −40°C to +125°C 3
Input Leakage Current IL -2 2 µA VIN = GND or VCC 3
Output Leakage Current ILO -1 1 µA CS = VCC, VOUT = GND or VCC; TA = −40°C to +85°C 3
Output Leakage Current ILO -1 2 µA CS = VCC, VOUT = GND or VCC; TA = −40°C to +125°C 3
Input Low Voltage VIL -0.5 V 3
Output Low Voltage VOL1 0.4 V VCC > 2.5 V, IOL = 3.0 mA 3
Output Low Voltage VOL2 0.2 V VCC < 2.5 V, IOL = 150 µA 3
Output Capacitance (SO) COUT 8 pF VOUT = 0 V; TA = 25°C, f = 1.0 MHz, VCC = +5.0 V 3
Input Capacitance (CS, SCK, SI, WP, HOLD) CIN 8 pF VIN = 0 V; TA = 25°C, f = 1.0 MHz, VCC = +5.0 V 3
Clock Frequency fSCK 5 MHz VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
Data Setup Time tSU 20 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
Data Hold Time tH 20 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
SCK High Time tWH 75 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
SCK Low Time tWL 75 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
HOLD to Output Low Z tLZ 50 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
Input Rise Time tRI 2 µs Note 10; VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
Input Fall Time tFI 2 µs Note 10; VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
HOLD Setup Time tHD 0 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
HOLD Hold Time tCD 10 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
Output Valid from Clock Low tV 70 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
Output Hold Time tHO 0 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
Output Disable Time tDIS 50 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
HOLD to Output High Z tHZ 100 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
CS High Time tCS 80 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
CS Setup Time tCSS 30 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
CS Hold Time tCSH 30 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
CS Inactive Setup Time tCNS 20 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
CS Inactive Hold Time tCNH 20 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
WP Setup Time tWPS 10 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
WP Hold Time tWPH 10 ns VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
Write Cycle Time tWC 5 ms Note 11; VCC = 1.8 V − 5.5 V, −40°C to +85°C 5
Power-up to Read Operation tPUR 1 ms Notes 10, 12 5
Power-up to Write Operation tPUW 1 ms Notes 10, 12 5

CAD (KiCad official)

  • Symbol: CAT25640YI-GT3
  • Footprint: Package_SO:TSSOP-8_3x3mm_P0.65mm
  • 3D model: TSSOP-8 (KiCad packages3D, STEP)
  • 3D model files: cat25640yi-gt3-etched.step / cat25640yi-gt3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cat25640yi-gt3.step / cat25640yi-gt3.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (17 pp, sha256 fd49d7d75cf81fda, retrieved 2026-10-19, 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