component
ZD25WQ16CSIGT
Public Unreviewedby Ray
Zetta NOR FLASH, SOP-8-208mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownZD25WQ16CSIGT
Zetta · NOR FLASH · SOP-8-208mil
ZD25WQ16CSIGT from Zetta, in a SOP-8-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CS# | input | Chip Select input, active-low. Drive low to enable the device and clock in commands on SCLK; drive high to deselect and place SO/IOx in high-Z. |
| 2 | SO/IO1 | bidirectional | Standard SPI serial data output (SO). In Dual/Quad SPI and QPI modes this pin becomes bidirectional IO1. Data is shifted out on the falling edge of SCLK in standard SPI. |
| 3 | WP#/IO2 | bidirectional | Write Protect input in Standard/Dual SPI mode (active-low; works with SRP0/SRP1 to hardware-protect the Status Register). In Quad SPI/QPI mode, and when the non-volatile QE bit is set to 1, this pin becomes bidirectional IO2 and the WP# function is disabled. |
| 4 | VSS | power_in | Device ground reference (0 V). Connect to the system ground plane. |
| 5 | SI/IO0 | bidirectional | Standard SPI serial data input (SI) - commands, addresses, and write data are latched on the rising edge of SCLK. In Dual/Quad SPI and QPI modes this pin becomes bidirectional IO0. |
| 6 | SCLK | input | Serial Clock input. Provides the timing for all serial input/output; supports SPI mode 0 (CPOL=0, CPHA=0) and mode 3 (CPOL=1, CPHA=1) up to 104 MHz for fast read. |
| 7 | HOLD#/IO3 | bidirectional | Hold input in Standard/Dual SPI mode (active-low; while CS# is low, driving HOLD# low pauses serial communication and forces SO to high-Z without deselecting the device). In Quad SPI/QPI mode, and when the non-volatile QE bit is set to 1, this pin becomes bidirectional IO3. |
| 8 | VCC | power_in | Device power supply, 1.65 V to 3.6 V single-supply operation for read, program, and erase. Decouple locally to VSS with a low-ESR capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Zetta |
| Package | SOP-8-208mil |
| Category | Memory |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
ZD25WQ16CSIGTZD25WQ16CSIGRZD25WQ16CSIGYZD25WQ16CSIGTCTIGTZD25WQ16CSIGTCTIGRZD25WQ16CSIGTCTIGYZD25WQ16CSIGTCOIGTZD25WQ16CSIGTCOIGRZD25WQ16CSIGTCOIGYZD25WQ16CSIGTCUIGTZD25WQ16CSIGTCUIGRZD25WQ16CSIGTCUIGYZD25WQ16CSIGTCEIGTZD25WQ16CSIGTCEIGRZD25WQ16CSIGTCEIGY
CAD (KiCad official)
- Symbol:
ZD25WQ16CSIGT - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8-208mil (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
zd25wq16csigt.step |
122 KB | You want the bare part, or you mark your own boards. |
zd25wq16csigt-etched.step |
2.6 MB | You want the part with ZD25WQ16CSIGT already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 623 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Zetta datasheet (87 pp, sha256
bfa49c113191080d, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).