MC14549B, MC14559B Successive Approximation Registers
The MC14549B and MC14559B successive approximation registers are 8...
MC14549B, MC14559B Successive Approximation Registers
The MC14549B and MC14559B successive approximation registers are 8–bit registers providing all the digital control and storage necessary for successive approximation analog–to–digital conversion systems. These parts differ in only one control input. The Master Reset (MR) on the MC14549B is required in the cascaded mode when more than 8 bits are desired. The Feed Forward (FF) of the MC14559B is used for register shortening where End–of–Conversion (EOC) is required after less than eight cycles. Applications for the MC14549B and MC14559B include analog–to–digital conversion, with serial and parallel outputs.
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MARKING DIAGRAMS
16 PDIP–16 P SUFFIX CASE 648 MC145xxBCP AWLYYWW 1
Totally Synchronous Operation All Outputs Buffered Single Supply Operation Serial Output Retriggerable Compatible with a Variety of Digital and Analog Systems such as the MC1408 8–Bit D/A Converter All Control Inputs Positive–Edge Triggered Supply Voltage Range = 3.0 Vdc to 18 Vdc Capable of Driving 2 Low–Power TTL Loads, 1 Low–Power
Schottky TTL Load or 2 HTL Loads Over the Rated Temperature Range Chip Complexity: 488 FETs or 122 Equivalent Gates
xx A WL, L YY, Y WW, W Unit V V mA mW °C °C
16 SOIC–16 DW SUFFIX CASE 751G 1 145xxB
AWLYYWW
MAXIMUM RATINGS (Voltages Referenced to VSS) (Note 1.)
Symbol VDD Vin Iin PD TA Tstg Parameter DC Supply Voltage Range Input Voltage Range, All Inputs DC Input Current, per Pin P...
