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Ray Publish 0.1.0 77f1751 1d ago

23LC512-I

Microchip Tech · SRAM · TSSOP-8

23LC512-I 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 CS input Chip Select input: a low level selects the device, a high level deselects it and forces Standby mode with SO in high-impedance; a low level is required after power-up before any sequence.
2 SO/SIO1 bidirectional Serial data output in SPI mode (data shifted out after the falling clock edge, high-impedance when deselected) and SIO1 in SDI/SQI modes.
3 SIO2 bidirectional SQI mode data pin SIO2 (NC in SPI/SDI mode, where the datasheet says pin 3 should not be left floating).
4 VSS power_in Ground.
5 SI/SIO0 bidirectional Serial data input in SPI mode (instructions, addresses and data latched on the rising clock edge) and SIO0 in SDI/SQI modes.
6 SCK input Serial clock input that synchronizes communication; inputs are latched on the rising edge and SO updates after the falling edge, up to 20 MHz (16 MHz for E-temp).
7 HOLD/SIO3 bidirectional Hold input that pauses a serial sequence when pulled low (must be held high when unused; not available in SQI mode), or SIO3 in SQI mode.
8 VCC power_in Power supply, 2.5V to 5.5V for 23LC512 (absolute maximum 6.5V).

Key specifications

Parameter Value
Manufacturer Microchip Tech
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 VCC 2.5 5.5 V 23LC512 2
Low-level input voltage (min only) VIL -0.3 V 23LC512; max is 0.1 VCC 2
Low-level output voltage VOL 0.2 V IOL = 1 mA 2
Input leakage current ILI -1 1 µA CS = VCC, VIN = VSS OR VCC 2
Output leakage current ILO -1 1 µA CS = VCC, VOUT = VSS OR VCC 2
Read operating current ICC 3 10 mA FCLK = 20 MHz; SO = O, 5.5V 2
Standby current ICCS 4 10 µA CS = VCC = 5.5V, Inputs tied to VCC or VSS, I-Temp 2
Input capacitance CINT 7 pF VCC = 5.0V, f = 1 MHz, TA = 25°C 2
RAM data retention voltage VDR 1 V 2
Clock frequency FCLK 20 MHz I-Temp 3
CS setup time TCSS 25 ns I-Temp 3
CS hold time TCSH 50 ns 3
CS disable time TCSD 25 ns I-Temp 3
Data setup time Tsu 10 ns 3
Data hold time THD 10 ns 3
CLK rise time TR 20 ns Note 1 3
CLK fall time TF 20 ns Note 1 3
Clock high time THI 25 ns I-Temp 3
Clock low time TLO 25 ns I-Temp 3
Clock delay time TCLD 25 ns I-Temp 3
Output valid from clock low TV 25 ns I-Temp 3
Output hold time THO 0 ns Note 1 3
Output disable time TDIS 20 ns 3
HOLD setup time THS 10 ns 3
HOLD hold time THH 10 ns 3
HOLD low to output High-Z THZ 10 ns 3
HOLD high to output valid THV 50 ns 3
Input/output voltage w.r.t. VSS (min only) -0.3 V All inputs and outputs w.r.t. VSS; max is VCC +0.3V 2
Storage temperature -65 150 °C 2
Ambient temperature under bias -40 125 °C 2
Operating temperature, Industrial TA -40 85 °C Industrial (I) 2

CAD (KiCad official)

  • Symbol: 23LC512-I
  • Footprint: Package_SO:TSSOP-8_3x3mm_P0.65mm
  • 3D model: TSSOP-8 (KiCad packages3D, STEP)
  • 3D model files: 23lc512-i-etched.step / 23lc512-i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 23lc512-i.step / 23lc512-i.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (32 pp, sha256 6969e2794a4312d3, 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