HF88M04 Datasheet, PDF (1/19 Pages) King blillion Electronics Co.,Ltd. – 512K x 8 bit Mask ROM

King Billion Electronics Co., Ltd _HF88M04
駿億電子股份有限公司
- Table of Contents -
1 Function Description______________________________________________________________2
2 Features ________________________________________________________________________2
3 Functional block diagram __________________________________________________________3
4 Pin Description __________________________________________________________________4
5 Pad Location ____________________________________________________________________5
6 Device Operation _________________________________________________________________6
6.1 Retrieve data in Data File ____________________________________________________________8
6.2 Loading the Address Counter _________________________________________________________8
6.3 Sequential Read Mode and Auto Increment of Address Counter ____________________________9
6.4 Output data to External I/O __________________________________________________________9
6.5 Reading Input pin status _____________________________________________________________9
6.6 Retrieving the Contents of Expansion I/O registers _______________________________________9
7 Timing Diagrams ________________________________________________________________10
7.1 Data File Read Cycle _______________________________________________________________11
7.2 Interrupted by I/O when Loading Address Counter______________________________________12
7.3 Setting and Reading the I/O Mode for P0 and P1 ________________________________________13
7.4 Reading P0 and P1 in Mixed-I/O Mode ________________________________________________14
7.5 Reading the input pins ______________________________________________________________15
7.6 Output to P0 and P1 Ports___________________________________________________________16
8 Absolute Maximum Rating ________________________________________________________16
9 AC Electrical Characteristics ______________________________________________________16
10 DC Electrical Characteristics ____________________________________________________17
11 Application Circuit Diagram _______________________________________________________17
12 Updated History _______________________________________________________________19
January 16, 2004
Page 1 of 19
V1.11
This specification is subject to change without notice. Please contact sales person for the latest version before use.