MBM27C256A

www.DataSheet4U.com MBM27C256A(1/2) IL00 C-MOS 256 K (32 K x 8)-BIT UV ERASABLE PROM WITH 3-STATE OUTPUTS —TOP VIEW— 10 D0 D1 D2 D3 D4 D5 D6 D7 11 12 13 15 16 17 18 19 1 VPP A12 IN 2 A7 IN 3 A6 IN 4 A5 IN 5 A4 IN 6 A3 IN 7 A2 IN 8 A1 IN 9 A0 IN 10 D0 OUT 11 D1 OUT 12 D2 OUT 13 14 GND VDD 28 27 A14 IN 26 A13 IN 25 A8 IN 24 A9 IN 23 A11 IN 22 OE IN 21 A10 IN 20 CE IN 19 D7 OUT 18 D6 OUT 17 D5 OUT 16 D4 OUT 15 D3 OUT A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 CE 20 OE 22 9 8 7 6 5 4 3 25 24 21 23 2 26 27 27 26 2 23 21 24 25 3 4 5 6 7 8 9 10 ROW DECODER 262,144-BIT CELL MATRIX COLUMN DECODER COLUMN GATE A0 - A14 : : CE D0 - D7 : : OE : VPP ADDRESS INPUTS CHIP ENABLE INPUT DATA OUTPUTS OUTPUT ENABLE INPUT PROGRAM POWER SUPPLY A2 A1 A0 CE OE 20 22 OUTPUT BUFFER CE, OE LOGIC 11 12 13 15 16 17 18 D6 D0 D1 D2 D3 D4 D5 D7 19 www.DataSheet4U.com MBM27C256A (2/2) VPP Dn FUNCTION +5 V D OUT READ +5 V HI-Z OUTPUT DISABLE +5 V HI-Z STANDBY +12.5 V D IN PGM D OUT +12.5 V PGM VERIFY (1) +12.5 V D OUT PGM VERIFY (2) +12.5 V HI-Z PGM INH +5 V DEVICE CODE ELECTRONIC SIGNATURE* * SEE FOLLOWING DESCRIPTION ELECTRONIC SIGNATURE FOR P ROM WRITER ADDRESS SETTINGS IN READ MODE A14, Vpp A1 - A8 A9 A10 - A13 1 0 12 V 0 CE 0 0 1 0 1 0 1 0 CODE DATA MAKER CODE DEVICE CODE AO 0 1 D7 0 0 D6 0 1 D5 0 1 D4 0 0 D3 0 0 D2 1 0 D1 0 1 D0 0 0 04H 62H An An An x An An An x AO OE 0 1 x 1 0 0 1 0 VDD +5 V +5 V +5 V +6 V +6 V +6 V +6 V +5 V 0 1 x HI-Z...