View hn27c1024hcp-10 datasheet:

HN27C1024HCP-10 (1/2) IL00 ********** ( )-BIT ONE TIME EPROM C-MOS 1M 65,536 X 16 -TOP VIEW- 6 5 4 3 2 1 44 43 42 41 40 24 21 A0 I/O0 25 20 A1 I/O1 26 19 A2 I/O2 7 39 27 18 A3 I/O3 8 38 28 17 A4 I/O4 29 16 9 37 A5 I/O5 30 15 10 36 A6 I/O6 31 14 A7 I/O7 11 35 32 11 A8 I/O8 GND 12 GND 34 35 10 A9 I/O9 36 9 13 NC NC 33 A10 I/O10 37 8 A11 I/O11 14 32 38 7 A12 I/O12 15 31 39 6 A13 I/O13 40 5 16 30 A14 I/O14 41 4 17 29 A15 I/O15 CE OE PGM 18 20 21 22 23 24 25 26 27 28 19 3 22 43 ( ) VDD = +5V PIN PIN PIN PIN I/O SIGNAL I/O SIGNAL I/O SIGNAL I/O SIGNAL NO. NO. NO. NO. 1 — 12 — 23 — 34 — NC GND NC GND 2 — 13 — 24 I 35 I VPP NC A0 A9 3 I 14 I/O 25 I 36 I CE I/O7 A1 A10 4 I/O 15 I/O 26