8-BIT MICROCONTROLLER. W78E065A Datasheet


W78E065A MICROCONTROLLER. Datasheet pdf. Equivalent


Part Number

W78E065A

Description

8-BIT MICROCONTROLLER

Manufacture

Winbond

Total Page 30 Pages
Datasheet
Download W78E065A Datasheet


W78E065A
W78E65/W78E065A Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 3
2. FEATURES ................................................................................................................................. 3
3. PIN CONFIGURATIONS ............................................................................................................ 4
4. PIN DESCRIPTION..................................................................................................................... 5
5. BLOCK DIAGRAM ...................................................................................................................... 6
6. FUNCTIONAL DESCRIPTION ................................................................................................... 7
6.1 RAM ................................................................................................................................ 7
6.2 Timers 0, 1, and 2........................................................................................................... 8
6.2.1 Timer 2 Output .................................................................................................................8
6.3 Clock ............................................................................................................................... 8
6.3.1 Crystal Oscillator ..............................................................................................................8
6.3.2 External Clock ..................................................................................................................8
6.4 Power Management........................................................................................................ 8
6.4.1 Idle Mode..........................................................................................................................8
6.4.2 Power-down Mode............................................................................................................9
6.4.3 Reduce EMI Emission ......................................................................................................9
6.5 Reset............................................................................................................................... 9
6.5.1 W78E65 Special Function Registers (SFRs) and Reset Values.....................................10
6.6 Port 4 ............................................................................................................................ 11
6.6.1 Port Options Register .....................................................................................................11
6.6.2 INT2 / INT3 ..................................................................................................................11
6.6.3 Port 4 Base Address Registers ......................................................................................13
6.7 Pulse Width Modulated Outputs (PWM)....................................................................... 15
6.8 Watchdog Timer ........................................................................................................... 18
6.9 In-System Programming (ISP) Mode............................................................................ 20
6.9.1 In-System Programming Control Register (CHPCON) ...................................................21
6.10 Software Reset ............................................................................................................. 22
6.11 H/W Reboot Mode (Boot from LD FLASH EPROM) .................................................... 22
6.12 Security ......................................................................................................................... 25
7. ELETRICAL CHARACTERISTICS ........................................................................................... 26
7.1 Absolute Maximum Ratings .......................................................................................... 26
7.2 DC Characteristics........................................................................................................ 26
7.3 AC Characteristics ........................................................................................................ 28
8. TIMING WAVEFORMS ............................................................................................................. 29
Publication Release Date: January 9, 2006
- 1 - Revision A7

W78E065A
W78E65/W78E065A
8.1 Program Fetch Cycle .................................................................................................... 29
8.2 Data Read Cycle........................................................................................................... 30
8.3 Data Write Cycle........................................................................................................... 31
8.4 Port Access Cycle......................................................................................................... 32
9. TYPICAL APPLICATION CIRCUIT........................................................................................... 33
9.1 External Program Memory and Crystal ........................................................................ 33
9.2 Expanded External Data Memory and Oscillator ......................................................... 34
10. PACKAGE DIMENSIONS ......................................................................................................... 35
10.1 44-pin PLCC ................................................................................................................. 35
11. APPLICATION NOTE ............................................................................................................... 36
11.1 In-system Programming Software Examples ............................................................... 36
12. REVISION HISTORY ................................................................................................................ 41
-2-


Features W78E65/W78E065A Data Sheet 8-BIT MICROCO NTROLLER Table of Contents- 1. GENERAL DESCRIPTION ........................... ....................................... ....................................... 3 2. FEATURES ........................ ....................................... ....................................... ........................... 3 3. PIN CO NFIGURATIONS .......................... ....................................... ....................................... .... 4 4. PIN DESCRIPTION.............. ....................................... ....................................... ......................... 5 5. BLOCK DI AGRAM ................................. ....................................... ....................................... ....... 6 6. FUNCTIONAL DESCRIPTION ... ....................................... ....................................... .................. 7 6.1 RAM .......... ....................................... ................................................................
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