28-Pin Quad Quad Op Amp, Industrial Temperature, 5V Supply, 12mA Current
Octal Adaptive Differential PCM Processor 28-Pin PLCC
8-Bit 8-Circuit Surface Mount IC, 5V 10mA 50mW 40ns PLCC
ADPCM Voice Compression G.726/T1.301 16Kbps/24Kbps/32Kbps/40Kbps 5V 28-Pin PLCC Rail
Octal Adaptive Differential PCM Processor 28-Pin PLCC Tube