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W541L260 Data Sheet 4-BIT MICROCONTROLLER
Table of Contents1. 2. 3. 4. 5. 6. GENERAL DESCRIPTION ......................................................................................................... 2 FEATURES ................................................................................................................................. 2 BLOCK DIAGRAM ...................................................................................................................... 4 PIN CONFIGURATION ............................................................................................................... 5 PIN DESCRIPTION..................................................................................................................... 6 ELECRICAL CHARACTERISTICS ............................................................................................. 7 6.1 6.2 6.3 7. 8. Absolute Maximum Ratings .......................................................................................... 7 DC Characteristics ........................................................................................................ 7 AC Characteristics......................................................................................................... 9
APPLICATION CIRCUIT........................................................................................................... 10 REVISION HISTORY ................................................................................................................ 11
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Publication Release Date: May 29, 2003 Revision A4
W541L260
1. GENERAL DESCRIPTION
W541L260 is fully compatible with W741L260 in the terms of pin assignment and IC functon except main oscillator. It is a high-performance 4-bit microcontroller (C) with an LCD driver. The device contains a 4-bit ALU, two 8-bit timers, two dividers, a 32 x 4 LCD driver, and five 4-bit I/O ports (including 1 output port to drive the LEDs). There are also five interrupt sources and 8-level subroutine nesting for interrupt applications. The W541L260 has one power reduction mode to help minimize power dissipation. The W541L260 has two oscillator circuits and can work in dual-clock or single-clock operation mode. It is suitable for remote controllers, watches and clocks, speech synthesis LSI controllers, and other products.
2. FEATURES
* Operating voltage: 1.2V-1.8V (LCD drive voltage: 3.0V, or 4.5V) * Single or Dual Clock Mode - Single (main oscillator only) or dual clock (both main and sub-oscilator) by mask option . - Sub-oscillator is only 32.768 KHz crystal for dual clock mode. - Main oscillator is crystal or RC oscillation by mask code option . - Main clock : High-frequency clock (400 KHz to 1 MHz) or low-frequency clock (32.768 KHz) is selected by mask code option * Memory - 2048 x 16 bit program ROM (including 2K x 4 bit look-up table) - 128 x 4 bit data RAM (including 16 working registers) - 32 x 4 LCD data RAM * 21 input/output pins - Ports for input only: 2 ports/8 pins - Input/output ports: 2 ports/8 pins - Port for output only: 1 port /4 pins (high sink current to drive LEDs) - MFP output pin: 1 pin (MFP) - Do not be floating when it is as input or output open-drain (NMOS type). * Power-down mode - Hold function: no operation (except for oscillator) - Stop function: no operation (including main clock)
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W541L260
* Five types of interrupts - Four internal interrupts (Divider 0, Divider 1, Timer 0, Timer 1) - One external interrupt (Port RC) * LCD driver output - 32 segment x 4 common - Static, 1/2 duty (1/2 bias), 1/3 duty (1/2 or 1/3 bias), 1/4 duty (1/3 bias) driving mode can be selected - LCD driver output pins can be used as DC output ports; selectable by code option * MFP output pin - Output is software selectable as modulating or nonmodulating frequency - Works as frequency output specified by Timer 1 * Two built-in 14-bit clock frequency divider circuit (divider 0 and divider 1) * Two built-in 8-bit programmable countdown timers - Timer 0: one of two internal clock frequencies (FOSC/4 or FOSC/1024) can be selected - Timer 1: includes an auto-reload function; and one of two internal clock frequencies (FOSC or FOSC/64) can be selected or falling edge of pin RC.0 can be selected (output through MFP pin) * Built-in 18/14-bit watchdog timer selectable for system reset * Powerful instruction set: 115 instructions * 8-level subroutine (include interrupt) nesting * Up to 4 S instruction cycle (with 1 MHz operating frequency) * Packaged in 80-pin QFP
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Publication Release Date: May 29, 2003 Revision A4
W541L260
3. BLOCK DIAGRAM
SEG0 to SEG31 COM0 to COM3 VDD1 to 3 DH1 to 2
RAM (128*4)
LCD DRIVER
PORT RA ROM (2048*16)
(look_up table 2K*4)
+1(+2)
RA0 to 3
ACC ALU PORT RB RB0 to 3
PORT RD PC Central Control Unit STACK (8 Levels)
IEF HCF PSR0 HEF EVF PR PEF SEF MR1
RD0 to 3
PORT RC
RC0 to 3
PORT RE
RE0 to 3
.
.
.
Timer 0 (8 Bit)
Timer 1 (8 Bit)
Modulation Frequency Pulse
SEL
MUL
MFP
Watch Dog Timer (4 Bit)
Divider 0 Divider 1 (14 Bit)
VDD Timing Generator VSS RES
XIN1 XOUT1 XIN2 XOUT2
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W541L260
4. PIN CONFIGURATION
SSS VVVEEE / RRM V DDDDDGGG R AAFNE NNTNDNNTNNHHDDD3 3 2 1 0 PCS C1 1 CDC2 2 CC1 2 1 2 3 1 0 9 X XO IU X XO IU
S E G 2 8
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 RA2 RA3 RB0 RB1 RB2 RB3 RC0 RC1 RC2 RC3 RD0 RD1 RD2 RD3 RE0 RE1 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12
NNRRVNNCCCCSSSSSSSSS CCEESCCOOOOEEEEEEEEE MMMMGGGGGGGGG 23S 3210012345678
SSSN EEEC GGG 911 01
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Publication Release Date: May 29, 2003 Revision A4
W541L260
5. PIN DESCRIPTION
SYMBOL XIN1 I/O I FUNCTION Input pin for oscillator. Connected to crystal or resistor to generate system clock by code option. External 10~20pF capacitor uses to get accurate freq in crystal mode. Output pin for oscillator. Connected to crystal or resistor to generate system clock by code option. 20pF capacitor is built in internal for crystal mode. Input pin for sub-oscillator. Connected to a 32.768 KHz crystal. External 10~20pF capacitor uses to get accurate freq in crystal mode. Output pin for sub-oscillator. Connected to a 32.768 KHz crystal. 20pF capacitor is built in internal for crystal mode. Input/Output port. Input/output mode specified by port mode 1 register (PM1). Input/Output port. Input/output mode specified by port mode 2 register (PM2). 4-bit port for input only. Each pin has an independent interrupt capability. And build-in schmitt trigger. 4-bit port for input only. Output port only. This port provides high sink current to drive LEDs. Output pin only. This pin can output modulating or nonmodulating frequency, or Timer 1 clock output specified by mode register 1 (MR1). System reset pin with pull-high resistor. LCD segment output pins. Can also be used as DC output ports specified by code option.
LCD common signal output pins.
Static COM0 Used Not Used Not Used Not Used 1/2 Duty Used Used Not Used Not Used 1/3 Duty Used Used Used Not Used 1/4 Duty Used Used Used Used
XOUT1 XIN2 XOUT2 RA0-RA3 RB0-RB3 RC0-RC3 RD0-RD3 RE0-RE3
O I O I/O I/O I I O
MFP
RES
O I O
SEG0-SEG31
COM0-COM3
O
COM1 COM2 COM3
The LCD alternating frequency can be selected by code option.
DH1, DH2 VDD1, VDD2 VDD3 VDD VSS
I I I I
Connection terminals for voltage doubler (halver) capacitor. Positive (+) supply voltage terminal. Refer to Functional Description. Positive power supply (+). Negative power supply (-).
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W541L260
6. ELECRICAL CHARACTERISTICS
6.1 Absolute Maximum Ratings
PARAMETER Supply Voltage to Ground Potential Applied Input/Output Voltage Power Dissipation Ambient Operating Temperature Storage Temperature RATING -0.3 to +7.0 -0.3 to +7.0 120 0 to +70 -55 to +150 UNIT V V mW C C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device.
6.2 DC Characteristics
(VDD-VSS = 1.5V, FOSC. = 32.768 KHz, TA = 25 C; unless otherwise specified)
PARAMETER Op. Volt ( Crystal type) Op. Volt ( RC type) Op. Volt ( RC, Crystal) Op. Current (RC Type)
SYM. VDD1 VDD2 VDD3 IOP2
CONDITIONS High-frequncy Oscillation High-frequncy Oscillation Low-frequncy Oscillation No load (Ext-V) In dual-clock normal operation No load (Ext-V) In dual-clock slow operation and Fm is stopped Hold mode No load (Ext-V) In dual-clock normal operation Hold mode No load (Ext-V) In dual-clock slow operation and Fm is stopped Stop mode No load (Ext-V) In dual-clock normal operation Stop mode No load (Ext-V) In single-clock operation
MIN. 1.35 1.2 1.2
TYP. -
MAX. 1.8 1.8 1.8
UNIT V V V
-
100
400
A
Op. Current (Crystal Type)
IOP3
-
8.5
20
A
Hold Current (RC Type)
IHM2
-
60
100
A
Hold Current (Crystal Type) Stop Current (Crystal type) Stop Current (Crystal type)
IHM3
-
4.0
6
A
ISM1
-
4.0 0.1
6 2
A A
ISM2
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Publication Release Date: May 29, 2003 Revision A4
W541L260
DC Characteristics, continue
PARAMETER Input Low Voltage Input High Voltage MFP Output Low Voltage MFP Output High Voltage Port RA, RB Output Low Voltage Port RA, RB Output High Voltage LCD Supply Current SEG0-SEG31 Sink Current (Used as LCD Output) SEG0-SEG31 Drive Current (Used as LCD Output) Segment Output Low Voltage (Used as DC Output) Segment Output High Voltage (Used as DC Output) Port RE Sink Current Port RE Source Current Input Port Pull-up Resistor
RES Pull-up Resistor
SYM. VIL VIH VML VMH VABL VABH ILCD IOL1 IOH1 VSL
CONDITIONS IOL = 0.9 mA IOH = 0.75 mA IOL = 1.0 mA IOH = 0.5 mA All Seg. ON VOL = 0.05V VLCD = 0.0V VOH = 4.45V VLCD = 4.5V IOL = 150 A
MIN. VSS 0.7 VDD 1.2 1.2 6 1.5 -
TYP. 0.1 1.4 0.2 1.4 12 12 0.1
MAX. 0.3 VDD VDD 0.3 0.3 6 0.15
UNIT V V V V V V A A A V
*VSH IEL IEH RCD RRES
IOH = 1 A VOL = 0.3V VOH = 1.2V Port RC, RD -
1.05 2 0.35 200 200
1.4 0.45 1000 500
1500 1500
V mA mA K K
Note : *VSH: Its ability is based on LCD power connected to 0.1 uF capacitor.
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W541L260
6.3 AC Characteristics
(VDD-VSS = 1.5V, TA = 25 C, unless otherwise specified)
PARAMETER
SYM.
CONDITIONS RC type Crystal type (Option low speed type only)
f(1.5V) - f(1.2V) f(1.5V)
MIN. 1 1
TYP. 32.768 1 4/FOSC -
MAX. 1000 10 2 -
UNIT
Op. Frequency Frequency Deviation by Voltage Drop for RC Oscillator Oscillator Start-up Time Instruction Cycle Time Reset Active Width Interrupt Active Width
FOSC f f TS TI TRAW TIAW
KHz % S mS S S
VDD=1.2 V, FOSC=32.768 KHz One machine cycle FOSC = 32.768 KHz FOSC = 32.768 KHz
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Publication Release Date: May 29, 2003 Revision A4
W541L260
7. APPLICATION CIRCUIT
Vcc
VDD
RA0 Output Signal RA3 RB0 RB1 RB2 RB3 RC0 RC1 RC2 RC3 COM3 SEG0 SEG31 DH1 DH2
0.1 uF
COM0
LCD PANEL (1/3 Bias 1/4 Duty)
RD0 RD1 RD2
V DD1 V DD2 V DD3
Connect to capacitor and VDD to generate LCD voltage
Vcc
RD3
RES
0.1 uF
XOUT1 XIN1 XOUT2
RE0 RE1 RE2 RE3
MFP
Vcc
32.768 KHz
XIN2
VSS
470
0.1 uF
*1 (option)
Note:
*1 is for accuracy
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W541L260
8. REVISION HISTORY
VERSION A2 A3 A4 DATE May 29, 2003 DESCRIPTION Note: Recommend working voltage range for Hi freq X al mode (L series) Note: RC is built-in schmitt trigger Note: Do not be floating when it is as input or output open-drain (NMOS type)
Headquarters
No. 4, Creation Rd. III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5665577 http://www.winbond.com.tw/
Winbond Electronics Corporation America
2727 North First Street, San Jose, CA 95134, U.S.A. TEL: 1-408-9436666 FAX: 1-408-5441798
Winbond Electronics (Shanghai) Ltd.
27F, 2299 Yan An W. Rd. Shanghai, 200336 China TEL: 86-21-62365999 FAX: 86-21-62365998
Taipei Office
9F, No.480, Rueiguang Rd., Neihu District, Taipei, 114, Taiwan, R.O.C. TEL: 886-2-8177-7168 FAX: 886-2-8751-3579
Winbond Electronics Corporation Japan
7F Daini-ueno BLDG, 3-7-18 Shinyokohama Kohoku-ku, Yokohama, 222-0033 TEL: 81-45-4781881 FAX: 81-45-4781800
Winbond Electronics (H.K.) Ltd.
Unit 9-15, 22F, Millennium City, No. 378 Kwun Tong Rd., Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064
Please note that all data and specifications are subject to change without notice. All the trade marks of products and companies mentioned in this data sheet belong to their respective owners.
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Publication Release Date: May 29, 2003 Revision A4

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