01W147A 24bit serial/parallel converter IC BU2152FS Description Dimension (Units : mm) BU2152FS is a 24bit serial/parallel converter IC. High-performance output terminal enables LED to be driven directly. Bit numbers can be increased easily by cascade connection. 0.11 Features 1) LED direct-drive (Output current: 25mA) 2) 24bit parallel output 3) TTL input 4) Low voltage operation (2.7V ~ 5.5V) 5) Serial data output for cascade connection 17 1 16 0.3Min. 1.8 ± 0.1 7.8 ± 0.3 5.4 ± 0.2 13.6 ± 0.2 32 0.8 0.15 ± 0.1 0.1 0.36 ± 0.1 SSOP-A32 Applications AV equipment such as component stereo, video, and TV Equipment with built-in micro-controller, and personal computers Absolute Maximum Ratings (Ta=25˚C) Parameter Limits Symbol Supply voltage VDD Power dissipation Operating temperature range Pd Topr Storage temperature range Tstg -0.3 ~ +7.0 800 ∗ -25 ~ +85 -55 ~ +125 Unit V mW ˚C ˚C ∗Derating :6.4mW/˚C for operation above Ta=25˚C April, 2002 Recommended Operating Conditions (Ta=25˚C) Parameter Power supply voltage Symbol Min. Typ. Max. Unit VDD 2.7 — 5.5 V Electrical characteristics (Unless otherwise noted: Ta=25˚C, VDD=2.7~5.5V) Parameter Symbol Min. Typ. Input voltage "High" level VIH 2.0 Input voltage "Low" level VIL — Output voltage "High" level VOH Output voltage "Low" level Max. Unit — — V VDD=5.0V — 0.6 V VDD=5.0V VDD–1.5 — — V IOH=–25mA VDD–1.0 — — V IOH=–15mA VDD–0.5 — -— V IOH=–10mA — — 1.5 V IOL=25mA — — 1.0 V IOL=15mA — — 0.5 V IOL=10mA VOL Conditions Application Circuit C1 (Note) VDD MPU VDD DATA CLK STB CLB P1 VDD DATA CLK STB CLB P1 P2 P22 P23 P24 VSS BU2152FS S0 VSS P2 P22 BU2152FS (Note; Place a capacitor of C1 close to VDD pin as much as possible.) P23 P24 VSS S0