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AT34C02D-XHM-B

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Microchip Tech Pre-ordered Chips, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AT34C02D-XHM-B

Microchip Tech · Pre-ordered Chips · TSSOP-8

AT34C02D-XHM-B from Microchip Tech, 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 hardwired to GND or VCC; if left floating it is internally pulled down to GND, but connecting it to a known state is recommended (10k or less pull-up).
2 A1 input Device address input hardwired to GND or VCC; if left floating it is internally pulled down to GND, but connecting it to a known state is recommended (10k or less pull-up).
3 A2 input Device address input hardwired to GND or VCC; if left floating it is internally pulled down to GND, but connecting it to a known state is recommended (10k or less pull-up).
4 GND power_in Ground.
5 SDA bidirectional Bidirectional serial data pin, open-drain driven, may be wire-ORed with other open-drain or open-collector devices.
6 SCL input Serial clock input that clocks data into the device on the positive edge and out of the device on the negative edge.
7 WP input Write protect input: GND allows normal writes, VCC inhibits all writes to the memory, and if left floating it is internally pulled down to GND.
8 VCC power_in Power supply, 1.7V to 5.5V.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TSSOP-8
Category Interface ICs
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 VCC 1.7 5.5 V 5
Supply Current Read ICC1 1 2 mA VCC = 5.0V Read at 400kHz 5
Supply Current Write ICC2 2 3 mA VCC = 5.0V Write at 400kHz 5
Standby Current ISB1 1 μA VCC = 1.7V VIN = VCC or VSS 5
Standby Current ISB2 3 μA VCC = 3.6V VIN = VCC or VSS 5
Standby Current ISB3 6 μA VCC = 5.5V VIN = VCC or VSS, A0 = VSS 5
Input Leakage Current ILI 0.1 3 μA VIN = VCC or VSS 5
Output Leakage Current ILO 0.05 3 μA VOUT = VCC or VSS 5
Input Low Level VIL -0.6 V max is VCC x 0.3; reference only, not tested 5
Output Low Level VOL2 0.4 V VCC = 3.0V IOL = 2.1mA 5
Output Low Level VOL1 0.2 V VCC = 1.7V IOL = 0.15mA 5
Input/Output Capacitance (SDA) CI/O 8 pF VI/O = 0V 5
Input Capacitance (A0, A1, A2, SCL) CIN 6 pF VIN = 0V 5
Operating Temperature -55 125 °C 5
Storage Temperature -65 150 °C 5
Voltage on any pin with respect to ground -1 7 V 5
Maximum Operating Voltage 6.25 V 5
DC Output Current 5 mA 5
High voltage for write protect register VHV 7 10 V VHV - VCC > 4.8V 12
Write Cycle Time tWR 5 ms 6
Clock Frequency, SCL fSCL 100 kHz VCC = 1.7 to 3.6V, first column 6
Clock Frequency, SCL fSCL 400 kHz VCC = 1.7 to 3.6V, second column 6
Clock Frequency, SCL fSCL 1000 kHz VCC = 3.6V to 5.5V 6
Clock Pulse Width Low tLOW 4700 ns VCC = 1.7 to 3.6V, first column 6
Clock Pulse Width Low tLOW 1300 ns VCC = 1.7 to 3.6V, second column 6
Clock Pulse Width Low tLOW 400 ns VCC = 3.6V to 5.5V 6
Clock Pulse Width High tHIGH 4000 ns VCC = 1.7 to 3.6V, first column 6
Clock Pulse Width High tHIGH 600 ns VCC = 1.7 to 3.6V, second column 6
Clock Pulse Width High tHIGH 400 ns VCC = 3.6V to 5.5V 6
Inputs Rise Time tR 1000 ns VCC = 1.7 to 3.6V, first column 6
Inputs Rise Time tR 300 ns VCC = 1.7 to 3.6V, second column 6
Inputs Rise Time tR 100 ns VCC = 3.6V to 5.5V 6
Inputs Fall Time tF 300 ns VCC = 1.7 to 3.6V, first column 6
Inputs Fall Time tF 100 ns VCC = 3.6V to 5.5V 6
Data in Set-up Time tSU.DAT 250 ns VCC = 1.7 to 3.6V, first column 6
Data in Set-up Time tSU.DAT 100 ns VCC = 1.7 to 3.6V, second column 6
Data in Hold Time tHD.DI 0 ns VCC = 1.7 to 3.6V, first column 6
Data Out Hold Time tHD.DAT 200 3450 ns VCC = 1.7 to 3.6V, first column 6
Data Out Hold Time tHD.DAT 200 900 ns VCC = 1.7 to 3.6V, second column 6
Data Out Hold Time tHD.DAT 50 550 ns VCC = 3.6V to 5.5V 6
Start Condition Set-up Time tSU.STA 4700 ns VCC = 1.7 to 3.6V, first column 6
Start Condition Set-up Time tSU.STA 600 ns VCC = 1.7 to 3.6V, second column 6
Start Condition Set-up Time tSU.STA 250 ns VCC = 3.6V to 5.5V 6
Start Condition Hold Time tHD.STA 4000 ns VCC = 1.7 to 3.6V, first column 6
Start Condition Hold Time tHD.STA 600 ns VCC = 1.7 to 3.6V, second column 6
Start Condition Hold Time tHD.STA 250 ns VCC = 3.6V to 5.5V 6
Stop Condition Set-up Time tSU.STO 4000 ns VCC = 1.7 to 3.6V, first column 6
Stop Condition Set-up Time tSU.STO 600 ns VCC = 1.7 to 3.6V, second column 6
Stop Condition Set-up Time tSU.STO 250 ns VCC = 3.6V to 5.5V 6
Pulse Width of Spikes Suppressed, Single Glitch tI 100 ns VCC = 1.7 to 3.6V, first column 6
Pulse Width of Spikes Suppressed, Single Glitch tI 50 ns VCC = 3.6V to 5.5V 6
Bus free time before new transmission tBUF 4700 ns VCC = 1.7 to 3.6V, first column 6
Bus free time before new transmission tBUF 1300 ns VCC = 1.7 to 3.6V, second column 6
Bus free time before new transmission tBUF 50 ns VCC = 3.6V to 5.5V 6

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin U = Green, Matte Sn Lead Finish, 18

CAD (KiCad official)

  • Symbol: AT34C02D-XHM-B
  • Footprint: Package_SO:TSSOP-8_3x3mm_P0.65mm
  • 3D model: TSSOP-8 (KiCad packages3D, STEP)
  • 3D model files: at34c02d-xhm-b-etched.step / at34c02d-xhm-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at34c02d-xhm-b.step / at34c02d-xhm-b.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (25 pp, sha256 c6fc4a238117bb07, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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