W77C32-40 datasheet, PDF - EEWORLD Datasheet

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W77C32-40: Description8 BIT MICROCONTROLLER; CategoryThe embedded processor and controller Microcontrollers and processors; File Size552KB，71 Pages; ManufacturerWinbond Electronics Corporation; Websitehttp://www.winbond.com.tw

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W77C32-40 Overview

8 BIT MICROCONTROLLER

W77C32-40 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Winbond Electronics Corporation
Parts packaging code	DIP
package instruction	DIP-40
Contacts	40
Reach Compliance Code	unknow
ECCN code	3A991.A.2
Has ADC	NO
Address bus width	16
bit size	8
CPU series	8051
maximum clock frequency	40 MHz
DAC channel	NO
DMA channel	NO
External data bus width	8
JESD-30 code	R-PDIP-T40
JESD-609 code	e0
length	52.2 mm
Number of I/O lines	32
Number of terminals	40
Maximum operating temperature	70 °C
Minimum operating temperature
PWM channel	NO
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP40,.6
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Certification status	Not Qualified
RAM (bytes)	1024
rom(word)	0
Maximum seat height	5.334 mm
speed	40 MHz
Maximum slew rate	50 mA
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	NO
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	TIN LEAD
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	15.24 mm
uPs/uCs/peripheral integrated circuit type	MICROCONTROLLER

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Preliminary W77C32

8 BIT MICROCONTROLLER

GENERAL DESCRIPTION

The W77C32 is a fast 8051 compatible microcontroller with a redesigned processor core without

wasted clock and memory cycles. As a result, it executes every 8051 instruction faster than the

original 8051 for the same crystal speed. Typically, the instruction executing time of W77C32 is 1.5 to

3 times faster then that of traditional 8051, depending on the type of instruction. In general, the

overall performance is about 2.5 times better than the original for the same crystal speed. Giving the

same throughput with lower clock speed, power consumption has been improved. Consequently, the

W77C32 is a fully static CMOS design; it can also be operated at a lower crystal clock. The W77C32

provides operating voltage from 4.5V to 5.5V. All W77C32 types also support on-chip 1KB SRAM

without external memory component and glue logic, saving more I/O pins for users application usage

if they use on-chip SRAM instead of external SRAM.

FEATURES

•

8-bit CMOS microcontroller

•

High speed architecture of 4 clocks/machine cycle runs up to 40 MHz

•

Pin compatible with standard 80C52

•

Instruction-set compatible with MCS-51

•

Four 8-bit I/O Ports

•

One extra 4-bit I/O port and Wait State control signal (available on 44-pin PLCC/QFP package)

•

Three 16-bit Timers

•

12 interrupt sources with two levels of priority

•

On-chip oscillator and clock circuitry

•

Two enhanced full duplex serial ports

•

256 bytes scratch-pad RAM

•

1KB on-chip SRAM for MOVX instruction

•

Programmable Watchdog Timer

•

Dual 16-bit Data Pointers

•

Software programmable access cycle to external RAM/peripherals

•

Packages:

−

DIP 40: W77C32-25/40

−

PLCC 44: W77C32P-25/40

−

QFP 44: W77C32F-25/40

-1-

Publication Release Date: March 1999

Revision A1

Preliminary W77C32

W77C32 to work efficiently with both fast and slow RAMs and peripheral devices. In addition, the

W77C32 contains on-chip 1KB MOVX SRAM, the address of which is between 0000H and 03FFH. It

only can be accessed by MOVX instruction; this on-chip SRAM is optional under software control.

The W77C32 is an 8052 compatible device that gives the user the features of the original 8052

device, but with improved speed and power consumption characteristics. It has the same instruction

set as the 8051 family, with one addition: DEC DPTR (op-code A5H, the DPTR is decreased by 1).

While the original 8051 family was designed to operate at 12 clock periods per machine cycle, the

W77C32 operates at a much reduced clock rate of only 4 clock periods per machine cycle. This

naturally speeds up the execution of instructions. Consequently, the W77C32 can run at a higher

speed as compared to the original 8052, even if the same crystal is used. Since the W77C32 is a fully

static CMOS design, it can also be operated at a lower crystal clock, giving the same throughput in

terms of instruction execution, yet reducing the power consumption.

The 4 clocks per machine cycle feature in the W77C32 is responsible for a three-fold increase in

execution speed. The W77C32 has all the standard features of the 8052, and has a few extra

peripherals and features as well.

I/O Ports

The W77C32 has four 8-bit ports and one extra 4-bit port. Port 0 can be used as an Address/Data bus

when external program is running or external memory/device is accessed by MOVC or MOVX

instruction. In these cases, it has strong pull-ups and pull-downs, and does not need any external pull-

ups. Otherwise it can be used as a general I/O port with open-drain circuit. Port 2 is used chiefly as

the upper 8-bits of the Address bus when port 0 is used as an address/data bus. It also has strong

pull-ups and pull-downs when it serves as an address bus. Port 1 and 3 act as I/O ports with alternate

functions. Port 4 is only available on 44-pin PLCC/QFP package type. It serves as a general purpose

I/O port as Port 1 and Port 3. The P4.0 has an alternate function

WAIT

which is the wait state control

signal. When wait state control signal is enabled, P4.0 is input only.

Serial I/O

The W77C32 has two enhanced serial ports that are functionally similar to the serial port of the

original 8052 family. However the serial ports on the W77C32 can operate in different modes in order

to obtain timing similarity as well.

Note that the serial port 0 can use Timer 1 or 2 as baud rate

generator, but the serial port 1 can only use Timer 1 as baud rate generator.

The serial ports

have the enhanced features of Automatic Address recognition and Frame Error detection.

Timers

The W77C32 has three 16-bit timers that are functionally similar to the timers of the 8052 family.

When used as timers, they can be set to run at either 4 clocks or 12 clocks per count, thus providing

the user with the option of operating in a mode that emulates the timing of the original 8052. The

W77C32 has an additional feature, the watchdog timer. This timer is used as a System Monitor or as

a very long time period timer.

Interrupts

The Interrupt structure in the W77C32 is slightly different from that of the standard 8052. Due to the

presence of additional features and peripherals, the number of interrupt sources and vectors has been

increased. The W77C32 provides 12 interrupt resources with two priority level, including six external

interrupt sources, timer interrupts, serial I/O interrupts and power-fail interrupt.

-5-

Publication Release Date: March 1999

Revision A1

W77C32-40 Related Products

	W77C32-40	W77C32-25	W77C32P-25	W77C32P-40	W77C32F-40	W77C32F-25
Description	8 BIT MICROCONTROLLER	8 BIT MICROCONTROLLER	8 BIT MICROCONTROLLER	8 BIT MICROCONTROLLER	8 BIT MICROCONTROLLER	8 BIT MICROCONTROLLER
Is it Rohs certified?	incompatible	-	-	incompatible	incompatible	incompatible
Maker	Winbond Electronics Corporation	-	-	Winbond Electronics Corporation	Winbond Electronics Corporation	Winbond Electronics Corporation
Parts packaging code	DIP	-	-	LCC	QFP	QFP
package instruction	DIP-40	-	-	PLASTIC, LCC-44	QFP-44	QFP, QFP44,.5SQ,32
Contacts	40	-	-	44	44	44
Reach Compliance Code	unknow	-	-	unknown	unknown	unknow
Has ADC	NO	-	-	NO	NO	NO
bit size	8	-	-	8	8	8
CPU series	8051	-	-	8051	8051	8051
maximum clock frequency	40 MHz	-	-	40 MHz	40 MHz	25 MHz
DAC channel	NO	-	-	NO	NO	NO
DMA channel	NO	-	-	NO	NO	NO
JESD-30 code	R-PDIP-T40	-	-	S-PQCC-J44	S-PQFP-G44	S-PQFP-G44
JESD-609 code	e0	-	-	e0	e0	e0
length	52.2 mm	-	-	16.59 mm	10 mm	10 mm
Number of I/O lines	32	-	-	36	36	32
Number of terminals	40	-	-	44	44	44
Maximum operating temperature	70 °C	-	-	70 °C	70 °C	70 °C
PWM channel	NO	-	-	NO	NO	NO
Package body material	PLASTIC/EPOXY	-	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	DIP	-	-	QCCJ	QFP	QFP
Encapsulate equivalent code	DIP40,.6	-	-	LDCC44,.7SQ	QFP44,.5SQ,32	QFP44,.5SQ,32
Package shape	RECTANGULAR	-	-	SQUARE	SQUARE	SQUARE
Package form	IN-LINE	-	-	CHIP CARRIER	FLATPACK	FLATPACK
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	-	-	225	NOT SPECIFIED	NOT SPECIFIED
power supply	5 V	-	-	5 V	5 V	5 V
Certification status	Not Qualified	-	-	Not Qualified	Not Qualified	Not Qualified
RAM (bytes)	1024	-	-	1024	1024	1024
speed	40 MHz	-	-	40 MHz	40 MHz	25 MHz
Maximum slew rate	50 mA	-	-	50 mA	50 mA	50 mA
Maximum supply voltage	5.5 V	-	-	5.5 V	5.5 V	5.5 V
Minimum supply voltage	4.5 V	-	-	4.5 V	4.5 V	4.5 V
Nominal supply voltage	5 V	-	-	5 V	5 V	5 V
surface mount	NO	-	-	YES	YES	YES
technology	CMOS	-	-	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL	-	-	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal surface	TIN LEAD	-	-	TIN LEAD	TIN LEAD	TIN LEAD
Terminal form	THROUGH-HOLE	-	-	J BEND	GULL WING	GULL WING
Terminal pitch	2.54 mm	-	-	1.27 mm	0.8 mm	0.8 mm
Terminal location	DUAL	-	-	QUAD	QUAD	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED	-	-	30	NOT SPECIFIED	NOT SPECIFIED
width	15.24 mm	-	-	16.59 mm	10 mm	10 mm
uPs/uCs/peripheral integrated circuit type	MICROCONTROLLER	-	-	MICROCONTROLLER	MICROCONTROLLER	MICROCONTROLLER

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