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8-BIT MICROCONTROLLER. W78E52C Datasheet

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8-BIT MICROCONTROLLER. W78E52C Datasheet






W78E52C MICROCONTROLLER. Datasheet pdf. Equivalent




W78E52C MICROCONTROLLER. Datasheet pdf. Equivalent





Part

W78E52C

Description

8-BIT MICROCONTROLLER



Feature


W78E52C/W78E052C Data Sheet 8-BIT MICROC ONTROLLER Table of Contents- 1. GENERAL DESCRIPTION .......................... ....................................... ....................................... . 2 2. FEATURES ....................... ....................................... ....................................... ............................ 2 3. PIN C ONFIGURATIONS .....
Manufacture

Winbond

Datasheet
Download W78E52C Datasheet


Winbond W78E52C

W78E52C; ........................................ ....................................... ......................... 3 4. PIN DESC RIPTION................................ ....................................... ....................................... ....... 4 5. FUNCTIONAL DESCRIPTION ... ....................................... ....................................... ...................


Winbond W78E52C

5 5.1 Timers 0, 1, and 2 .............. ....................................... ....................................... ............... 5 5.2 New Defined Perip heral.................................. ....................................... ......................... 5 5.3 Watchdo g Timer ............................... ....................................... ...................


Winbond W78E52C

..................... 7 5.4 Clock ...... ....................................... ....................................... ....................................... .... 9 5.5 Power Management............ ....................................... ....................................... .............. 9 5.6 Reset............. ....................................... ...................

Part

W78E52C

Description

8-BIT MICROCONTROLLER



Feature


W78E52C/W78E052C Data Sheet 8-BIT MICROC ONTROLLER Table of Contents- 1. GENERAL DESCRIPTION .......................... ....................................... ....................................... . 2 2. FEATURES ....................... ....................................... ....................................... ............................ 2 3. PIN C ONFIGURATIONS .....
Manufacture

Winbond

Datasheet
Download W78E52C Datasheet




 W78E52C
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




 W78E52C
W78E52C/W78E052C
1. GENERAL DESCRIPTION
The W78E052C is an 8-bit microcontroller which can accommodate a wider frequency range with low
power consumption. The instruction set for the W78E052C is fully compatible with the standard 8051.
The W78E052C contains an 8K bytes Flash EPROM; a 256 bytes RAM; four 8-bit bi-directional and
bit-addressable I/O ports; an additional 4-bit I/O port P4; three 16-bit timer/counters; a hardware
watchdog timer and a serial port. These peripherals are supported by eight sources two-level interrupt
capability. To facilitate programming and verification, the Flash EPROM inside the W78E052C allows
the program memory to be programmed and read electronically. Once the code is confirmed, the user
can protect the code for security.
The W78E052C microcontroller has two power reduction modes, idle mode and power-down mode,
both of which are software selectable. The idle mode turns off the processor clock but allows for
continued peripheral operation. The power-down mode stops the crystal oscillator for minimum power
consumption. The external clock can be stopped at any time and in any state without affecting the
processor.
2. FEATURES
Fully static design 8-bit CMOS microcontroller
Wide supply voltage of 4.5V to 5.5V
256 bytes of on-chip scratchpad RAM
8 KB On-chip Flash EPROM
64 KB program memory address space
64 KB data memory address space
Four 8-bit bi-directional ports
One extra 4-bit bit-addressable I/O port, additional INT2 / INT3
(available on 44-pin PLCC/QFP package)
Three 16-bit timer/counters
One full duplex serial port(UART)
Watchdog Timer
Eight sources, two-level interrupt capability
EMI reduction mode
Built-in power management
Code protection mechanism
Packages:
Lead Free (RoHS) DIP 40: W78E052C40DL
Lead Free (RoHS) PLCC 44: W78E052C40PL
Lead Free (RoHS) PQFP 44: W78E052C40FL
-2-




 W78E52C
3. PIN CONFIGURATIONS
W78E52C/W78E052C
Publication Release Date: November 6, 2006
- 3 - Revision A4



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