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| FX651 | SRM and security subsystem | Consumer Microcircuits Limited | N/A | 16 | -40°C | 85°C | FX651 datasheet (586K) |
| FX663D4 | Call progress detector | Consumer Microcircuits Limited | N/A | 16 | -30°C | 85°C | FX663D4 datasheet (349K) |
| FX663P3 | Call progress detector | Consumer Microcircuits Limited | DIP | 16 | -30°C | 85°C | FX663P3 datasheet (349K) |
| FX709J | Voice store retrieve CVSD codec | Consumer Microcircuits Limited | DIP | 28 | -30°C | 85°C | FX709J datasheet (367K) |
| FX709LH | Voice store retrieve CVSD codec | Consumer Microcircuits Limited | PLCC | 28 | -30°C | 70°C | FX709LH datasheet (367K) |
| FX802J | DVSR codec | Consumer Microcircuits Limited | DIP | 28 | -40°C | 85°C | FX802J datasheet (126K) |
| FX802LG | DVSR codec | Consumer Microcircuits Limited | PEBC | 24 | -40°C | 85°C | FX802LG datasheet (126K) |
| FX802LS | DVSR codec | Consumer Microcircuits Limited | PLCC | 24 | -40°C | 85°C | FX802LS datasheet (126K) |
| FX805J | Sub-audio signalling processor | Consumer Microcircuits Limited | DIP | 24 | -40°C | 85°C | FX805J datasheet (138K) |
| FX805LG | Sub-audio signalling processor | Consumer Microcircuits Limited | PEBC | 24 | -40°C | 85°C | FX805LG datasheet (138K) |