Pin Function Grouping
Worked for 45 sec
Updated all pins to use more general functional groups and mirrored each pin’s Pin Group into its Section property.
Applied grouping:
- Power: VCC, GND
- Control: A, B, 1
G, 2G - Data: 1C0–1C3, 2C0–2C3, 1Y, 2Y
Verified that every pin now has a Section value matching its Pin Group value.
Assign a Terminal Order from 1 to 10, starting with Power. Power should be Terminal Order 1, and Ground should be last, Terminal Order 10. For Orientation, set Power to "Top" and Ground to "Bottom." For the remaining sections/groups, you may decide the Terminal Order and Orientation yourself. For Orientation, distribute them between "Left" and "Right" — don't put everything on one side. Each group/section should have a different orientation.
Thought for 7 sec
I’ll assign terminal ordering and orientations by functional group: VCC at the top first, GND at the bottom last, and split the remaining groups across left/right.
Worked for 31 sec
Assigned and verified Terminal Order + Orientation.
- VCC: order 1, orientation Top
- Control pins A, B, 1
G, 2G: orders 2–5, orientation Left - Data pins: orders 6–9, orientation Right
- GND: order 10, orientation Bottom
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Part Review - SN74HC153N
Scope
Reviewed available part metadata, schematic terminals/symbol pin mapping, footprint, datasheet information, and terminal grouping for the Texas Instruments SN74HC153N part project.
Source Data
- Existing project Datasheet URL:
https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/70620fec44c6b098852c2360f21afc0f49f9fddee5c7539001fdbd14d12218fd.pdf - Official TI datasheet found:
https://www.ti.com/lit/ds/symlink/sn74hc153.pdf - TI product page also lists datasheet as
https://www.ti.com/lit/gpn/sn74hc153
Key Specs
- Manufacturer: Texas Instruments
- MPN: SN74HC153N
- Function: Dual 4-line to 1-line data selector / multiplexer
- Logic family: HC CMOS
- Channels: 2 independent 4:1 mux channels
- Shared select inputs: A and B
- Per-channel active-low enable/strobe inputs: 1G and 2G
- Supply range: VCC = 2 V to 6 V recommended operating range
- Operating temperature: -40 °C to 85 °C, catalog rating
- Package: N package, 16-pin PDIP
- Body size per datasheet summary: nominal 19.31 mm × 6.35 mm
- Package drawing: N / R-PDIP-T16
Datasheet Pin Table Cross-Check
Table
| Pin | Datasheet Name | Flux Terminal | Type Set | Group Set | Result |
|---|---|---|---|---|---|
| 1 | 1G, active-low enable | 1~G | Input | Control Bus | Match; tilde notation indicates active-low |
| 2 | B select input | B | Input | ADDR | Match |
| 3 | 1C3 data input | 1C3 | Input | Data Bus | Match |
| 4 | 1C2 data input | 1C2 | Input | Data Bus | Match |
| 5 | 1C1 data input | 1C1 | Input | Data Bus | Match |
| 6 | 1C0 data input | 1C0 | Input | Data Bus | Match |
| 7 | 1Y output | 1Y | Output | Data Bus | Match |
| 8 | GND | GND | Ground | GND | Match |
| 9 | 2Y output | 2Y | Output | Data Bus | Match |
| 10 | 2C0 data input | 2C0 | Input | Data Bus | Match |
| 11 | 2C1 data input | 2C1 | Input | Data Bus | Match |
| 12 | 2C2 data input | 2C2 | Input | Data Bus | Match |
| 13 | 2C3 data input | 2C3 | Input | Data Bus | Match |
| 14 | A select input | A | Input | ADDR | Match |
| 15 | 2G, active-low enable | 2~G | Input | Control Bus | Match; tilde notation indicates active-low |
| 16 | VCC | VCC | Power In | VCC | Match |
Pin Grouping Applied
Each physical pin is assigned to exactly one primary group:
- VCC: pin 16 only
- GND: pin 8 only
- ADDR: pins 14 A and 2 B
- Control Bus: pins 1 1
G and 15 2G - Data Bus: pins 3-7 and 9-13, covering mux data inputs and outputs
Footprint Cross-Check
Flux footprint asset:
DIP794W53P254L1930H508Q16N.kicad_mod.Observed footprint properties:
- 16 through-hole pads
- 2.54 mm lead pitch
- 7.94 mm row spacing
- Approx. 19.30 mm package/body length indicated by footprint name
- Pad 1 rectangular, pads 2-16 circular
- Pad numbering follows standard DIP counter-clockwise sequence
- 3D model present:
SN74HC153N.stp
Assessment: Footprint is consistent with a 16-pin PDIP / TI N-package part. No pin-count or pad-numbering mismatch found.
Mismatches / Items to Flag
- No electrical pinout mismatch found.
- Symbol uses
1~Gand2~G; datasheet labels these pins as1Gand2Gwith active-low behavior. The Flux tilde notation is acceptable and clearer for active-low pins. - Current Datasheet URL is a stored/uploaded PDF rather than the direct official TI URL. Because a Datasheet URL was already present, I did not replace it under the original instruction. Official TI URL found:
https://www.ti.com/lit/ds/symlink/sn74hc153.pdf. - Component review checks returned no matching detailed check results for the selected part review categories, so no automated part-review errors were available to report.
Result
The SN74HC153N part metadata, symbol terminals, pin numbers, pin descriptions, functional grouping, and PDIP-16 footprint are consistent with the datasheet. The only notable cleanup candidate is replacing the stored datasheet URL with the official TI datasheet URL if desired.
Scope
Source Data
Key Specs
Datasheet Pin Table Cross-Check
Pin Grouping Applied
Footprint Cross-Check
Mismatches / Items to Flag
Result
