| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| AS2521BP | Telephone speech circuit with loudhearihg and handsfree | Austria-Mikro-Systeme-International | DIP | 28 | -25°C | 70°C | 96 K |
| CD4521BPWR | CMOS 24-STAGE FREQUENCY DIVIDER | Texas-Instruments | PW | 16 | -55°C | 125°C | 282 K |
| HEF4521BP | 24-stage frequency divider and oscillator | Philips-Semiconductors | SOT38 | - | - | - | 159 K |
| HEF4521BPB | 24-stage frequency divider and oscillator | Philips-Semiconductors | SOT38 | - | - | - | 159 K |
| IDT54FCT521BP | Fast CMOS 8-bit identity comparator | Integrated-Device-Technology-Inc- | DIP | 20 | -55°C | 125°C | 102 K |
| IDT54FCT521BPB | Fast CMOS 8-bit identity comparator | Integrated-Device-Technology-Inc- | DIP | 20 | -55°C | 125°C | 102 K |
| IDT74FCT521BP | Fast CMOS 8-bit identity comparator | Integrated-Device-Technology-Inc- | DIP | 20 | 0°C | 70°C | 102 K |
| IDT74FCT521BPB | Fast CMOS 8-bit identity comparator | Integrated-Device-Technology-Inc- | DIP | 20 | 0°C | 70°C | 102 K |
| PCA8521BP | 5.5 V, infrared remote control transmitter RC5 | Philips-Semiconductors | DIP | 20 | -10°C | 50°C | 110 K |
| PCA8521BP | Infrared remote control transmitter RC5. | Philips-Semiconductors | - | 20 | 0°C | 50°C | 159 K |
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