W78E052C 查看數據表（PDF） - Winbond

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W78E052C

8-BIT MICROCONTROLLER

Winbond 

W78E52C/W78E052C Data Sheet

8-BIT MICROCONTROLLER

Table of Contents-

1. GENERAL DESCRIPTION ......................................................................................................... 2

2. FEATURES ................................................................................................................................. 2

3. PIN CONFIGURATIONS ............................................................................................................ 3

4. PIN DESCRIPTION..................................................................................................................... 4

5. FUNCTIONAL DESCRIPTION ................................................................................................... 5

5.1 Timers 0, 1, and 2 ........................................................................................................... 5

5.2 New Defined Peripheral.................................................................................................. 5

5.3 Watchdog Timer ............................................................................................................. 7

5.4 Clock ............................................................................................................................... 9

5.5 Power Management........................................................................................................ 9

5.6 Reset............................................................................................................................... 9

6. SECURITY BITS ....................................................................................................................... 10

6.1 Lock Bit ......................................................................................................................... 10

6.2 MOVC Inhibit................................................................................................................. 10

6.3 Encryption ..................................................................................................................... 10

7. ELECTRICAL CHARACTERISTICS......................................................................................... 11

7.1 Absolute Maximum Ratings .......................................................................................... 11

7.2 D.C. Characteristics...................................................................................................... 11

7.3 A.C. Characteristics ...................................................................................................... 13

8. TIMING WAVEFORMS ............................................................................................................. 16

8.1 Program Fetch Cycle .................................................................................................... 16

8.2 Data Read Cycle........................................................................................................... 16

8.3 Data Write Cycle ........................................................................................................... 17

8.4 Port Access Cycle......................................................................................................... 17

9. TYPICAL APPLICATION CIRCUITS ........................................................................................ 18

9.1 Expanded External Program Memory and Crystal ....................................................... 18

9.2 Expanded External Data Memory and Oscillator ......................................................... 19

10. PACKAGE DIMENSIONS ......................................................................................................... 20

10.1 40-pin DIP ..................................................................................................................... 20

10.2 44-pin PLCC ................................................................................................................. 20

10.3 44-pin PQFP ................................................................................................................. 21

11. REVISION HISTORY ................................................................................................................ 22

Publication Release Date: November 6, 2006

-1-

Revision A4

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