W78E516B_06 Datasheet, PDF (1/37 Pages) Winbond – 8-BIT MICROCONTROLLER

W78E516B Data Sheet
Table of Contents-
8-BIT MICROCONTROLLER
1. GENERAL DESCRIPTION ......................................................................................................... 3
2. FEATURES ................................................................................................................................. 3
3. PIN CONFIGURATIONS ............................................................................................................ 4
4. PIN DESCRIPTION..................................................................................................................... 5
5. FUNCTIONAL DESCRIPTION ................................................................................................... 6
5.1 RAM ................................................................................................................................ 6
5.2 Timers 0, 1 and 2 ............................................................................................................ 6
5.3 Clock ............................................................................................................................... 7
5.4 Crystal Oscillator............................................................................................................. 7
5.5 External Clock................................................................................................................. 7
5.6 Power Management........................................................................................................ 7
5.7 Reduce EMI Emission .................................................................................................... 7
5.8 Reset............................................................................................................................... 7
5.9 Port 4 .............................................................................................................................. 9
5.10 INT2 / INT3 ...................................................................................................................... 9
5.11 Port 4 Base Address Registers .................................................................................... 12
5.12 In-System Programming (ISP) Mode............................................................................ 14
5.13 In-System Programming Control Register (CHPCON)................................................. 16
6. SECURITY ................................................................................................................................ 20
6.1 Lock Bit ......................................................................................................................... 20
6.2 MOVC Inhibit................................................................................................................. 20
6.3 Encryption ..................................................................................................................... 21
6.4 Oscillator Control .......................................................................................................... 21
7. ELECTRICAL CHARACTERISTICS......................................................................................... 22
7.1 Absolute Maximum Ratings .......................................................................................... 22
7.2 D.C. Characteristics...................................................................................................... 22
7.3 A.C. Characteristics ...................................................................................................... 24
8. TIMING WAVEFORMS ............................................................................................................. 26
8.1 Program Fetch Cycle .................................................................................................... 26
8.2 Data Read Cycle........................................................................................................... 26
8.3 Data Write Cycle ........................................................................................................... 27
Publication Release Date: December 4, 2006
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Revision A11