Parts · ICs
7660
Charge Pump Voltage Converter DIP-8 / SOIC-8.15 circuits use this part. Listed as: Charge Pump TC7660SPCA Adjust; DIP-8 W7.62mm Socket; IC-DIP-8.
Datasheet · from renesas.com
Substitutes same socket
Parts that fit the same socket: the same function, pin count and pinout. The figures are read off each part's datasheet (this one's from page 3), typical where the sheet gives a typical value, otherwise the maximum. Closest first; the last column says what differs. A different part can change the sound, and a circuit may lean on one particular figure, so read the build document's notes before you swap.
This part
| Part | Supply | Iout | Osc | Boards |
|---|---|---|---|---|
| 7660 | 1.5–10 V | 10 kHz | 15 |
Rated to only 10 V (10.5 V absolute), so a hot 9 V adapter is near its limit; the 10 kHz clock can whine in the audio.
Fits the same socket
| Part | Supply | Iout | Osc | Boards | Differs |
|---|---|---|---|---|---|
| TC1044 | 1.5–12 V | 10 kHz | 289 | pins 1, 6, 7: boost, LV, OSC. Boost pin to V+ raises the oscillator from 10 kHz to 45 kHz, out of the audio band; 12 V maximum, so not for 18 V doublers. | |
| 7660S | 1.5–12 V | 10 kHz | 202 | pins 1, 6, 7: boost, LV, OSC. Takes up to 12 V and needs no protection diode; tying pin 1 (boost) to V+ raises the clock from 10 kHz to 35 kHz, out of the audio band. | |
| TC7662B | 1.5–15 V | 10 kHz | 4 | pins 1, 6, 7: boost, LV, OSC. 7660 drop-in that takes up to 15 V; tying pin 1 (boost) to V+ raises the clock to 35 kHz. |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| Loop-D-Loop 7660 · J201 Ceriatone Mini Klein-ulator · 1590BBS | Ceriatone Mini Klein-ulator | Utility | Dead End FX | 1590BBS | 3 | $15.00 | 38 | |
| Terrahawk 1458 · 7660 Butcher Pedals Pistol Slapper · 1590BBS | Butcher Pedals Pistol Slapper | Boost | Dead End FX | 1590BBS | 6 | $15.00 | 61 | |
| Козак (Cossack) 2N3904 · 2N3906 · 555 · 7660 Klon Centaur · 125B | Klon Centaur | Overdrive | Effects Layouts | 125B | 3 | $10.00 | 75 | |
| DAM Buzzotron Perfboard Verified 7660 · NKT213 DAM Buzzotron | DAM Buzzotron | Fuzz | Effects Layouts (blog) | — | 4 | — | 26 | |
| Keeley Katana Perfboard Verified 2N5458 · 7660 Keeley Katana · 1590A | Keeley Katana | Boost | Effects Layouts (blog) | 1590A | 1 | — | 15 | |
| Klon Centaur Perfboard Verified 7660/1044 · TL072 Klon Centaur · 1590B | Klon Centaur | Overdrive | Effects Layouts (blog) | 1590B | 3 | — | 39 | |
| Klon Centaur - True Bypass Perfboard Verified 7660 · TL072 Klon Centaur · 1590B | Klon Centaur | Overdrive | Effects Layouts (blog) | 1590B | 3 | — | 41 | |
| Negative Voltage Inverter Perfboard Verified 1044/7660 Negative Voltage Inverter | Negative Voltage Inverter | Utility | Effects Layouts (blog) | — | — | — | 3 | |
| 9V Voltage Inverter 7660 · ICL7660 | — | Utility | Five Cats Pedals | — | — | £2.50 | 4 | |
| E.P.3.0 2N5457 · 7660SEPA / 7660 / MAX1044 - USE JUMPER IF 7660 OR MAX1044 Maestro Echoplex EP-3 Preamp · 1590B | Maestro Echoplex EP-3 Preamp | Preamp / Amp-in-a-box | Five Cats Pedals | 1590B | 2 | £4.50 | 29 | |
| Billowing Smoke Drive 7660 Plumes / Blumes · 1590B | Plumes / Blumes | Overdrive | Fuzz Dog | 1590B | 3 | £36.00 | 37 | |
| Gorilla Glasses 741 · 7660 · J201 · LM741 God City Instruments Ape Eye · 125B | God City Instruments Ape Eye | Distortion | God City Instruments | 125B | 4 | $10.00 | 53 | |
| Charge pump PCB for doubling voltage of guitar pedal project 7660 · ICL7660A | — | Utility | Griffin Effects | — | — | $2.50 | 12 | |
| Jon Patton’s Cru’z Driver 2N5457 · 7660S · BS170 · ICL7660 S CPA Jon Patton Cruz Drive · 1590B | Jon Patton Cruz Drive | Overdrive | TH Custom Effects | 1590B | 4 | €7.02 | 39 | |
| ROG Supreaux-Deux V1.3 2N5457 · 7660S · ICL7660 SCPA · J201 Run Off Groove Supreaux Deux · 1590B | Run Off Groove Supreaux Deux | Overdrive | TH Custom Effects | 1590B | 3 | €7.14 | 34 |