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HL MSI
TYPES SN5491A, SNS4L91, SNS4LS91. SN7491A, SN74U1. SN74IS91 8-BIT SHIFT REGISTERS
B U L L E T I N NO . P L -S 7 611884, M A R C H 1 9 7 4 - R E V IS D O C T O B E R 1976
MSI T T L ¿ H I
