LH534A00

LH534A00 FEATURES 524,288 words × 8 bit organization Access time: 120 ns (MAX.) Static operation TTL compatible I/O Three-state outputs Single +5 V power supply Power consumption: Operating: 357.5 mW (MAX.) Standby: 550 µW (MAX.) Package: 32-pin, 8 × 20 mm2 TSOP (Type I) DESCRIPTION The LH534A00 is a 4M-bit mask-programmable ROM organized as 524,288 × 8 bits. It is fabricated using silicon-gate CMOS process technology. A11 A9 A8 A13 A14 A17 NC VCC A18 A16 A15 A12 A7 A6 A5 A4 CMOS 4M (512K × 8) MROM PIN CONNECTIONS 32-PIN TSOP (Type I) TOP VIEW 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 OE A10 CE D7 D6 D5 D4 D3 GND D2 D1 D0 A0 A1 A2 A3 534A00-1 Figure 1. Pin Connections for TSOP Package 1 LH534A00 CMOS 4M MROM A18 9 A17 6 A16 A15 A14 A13 10 11 5 4 A11 1 A10 31 A9 A8 A7 A6 2 3 13 14 A5 15 A4 16 A3 17 A2 18 A1 19 A0 20 ADDRESS BUFFER A12 12 ADDRESS DECODER MEMORY MATRIX (524,288 x 8) COLUMN SELECTOR SENSE AMPLIFIER CE 30 CE BUFFER TIMING GENERATOR OUTPUT BUFFER OE 32 OE BUFFER 8 24 VCC GND 21 D0 22 D1 23 D2 25 D3 26 D4 27 D5 28 D6 29 D7 534A00-2 Figure 2. LH534A00 Block Diagram PIN DESCRIPTION SIGNAL PIN NAME SIGNAL PIN NAME A0 – A18 D0 – D7 CE Address input Data output Chip enable input OE VCC GND Output enable input Power supply (+5 V) Ground 2 CMOS 4M MROM LH534A00 TRUTH TABLE CE OE DATA OUTPUT SUPPLY CURRENT H L X H L High-Z High-Z Output Standby Operating Operating NOTE:...