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Preliminary W541E260 Data Sheet 4-BIT FLASH EPROM MICROCONTROLLER
Table of Contents1. GENERAL DESCRIPTION ................................................................................................................ 2 2. FEATURES ........................................................................................................................................ 2 3. BLOCK DIAGRAM ............................................................................................................................. 4 4. PIN CONFIGURATION ...................................................................................................................... 5 5. PIN DESCRIPTION............................................................................................................................ 6 6. ELECTRICAL CHARACTERISTICS .................................................................................................. 7 6.1 6.2 6.3 Absolute Maximum Ratings .................................................................................................. 7 DC Characteristics ................................................................................................................ 7 AC Characteristics................................................................................................................. 9
7. APPLICATION CIRCUIT .................................................................................................................. 10 8. PACKAGE DIMENSIONS ................................................................................................................ 11 8.1 80-Lead QFP....................................................................................................................... 11
9. REVISION HISTORY ....................................................................................................................... 12
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Publication Release Date: June 2, 2003 Revision A1
W541E260
1. GENERAL DESCRIPTION
The W541E260 is fully compatible with W741E260 in terms of pin assignment and IC function. It is a high-performance 4-bit microcontroller (C) that provides an LCD driver and the flash EEPROM for the program memory. The device contains a 4-bit ALU, two 8-bit timers, two dividers (for two oscillators) in dual-clock operation, a 32 x 4 LCD driver, and five 4-bit I/O ports (including 1 output port for LED driving). There are also five interrupt sources and a 8-level subroutine nesting for interrupt applications. The W541E260 operates on very low current and has three power reduction modes, hold mode and stop mode in single-clock operation and the dual-clock slow operation, which help to minimize power dissipation. This chip is available for W541C250 and W541C260 bodies, which can be selected by option code. The W541E260 is suitable for end product manufacturer engineering testing and earlier samples before mass production.
2. FEATURES
* Operating voltage: 2.4V to 5.5V (LCD drive voltage: 3.0V, or 4.5V) * Crystal/Ceramic oscillator: up to 4 MHz * RC oscillator: up to 4 MHz * Dual-clock operation is selected by code option * Main oscillator
- Crystal or RC oscillation circuit can be selected by code option - In crystal mode, high-frequency (400 KHz to 4 MHz) or low-frequency (32.768 KHz) oscillation should be selected by code option - In RC mode, attention must be paid to the high/low frequency oscillation option, because the LCD driver frequency and the ROM code emulation time are related to this option.
* Sub-oscillator
- Connect to 32768 Hz crystal only - Used in dual-clock operation
* Memory
- 2048 x 16-bit program flash EEPROM (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 - High sink current for LED driving: 1 port/4 pins - 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 (excluding main oscillator and sub-oscillator) - Stop function: no operation (excluding sub-oscillator) -2-
W541E260
- Dual-clock slow operation mode: system is operated by the sub-oscillator (FOSC = Fs and Fm is stopped)
* Five types of interrupts
- Four internal interrupts (Divider0, Divider1, Timer0, Timer1) for W541C260 body; three internal interrupts (Divider0, Timer0, Timer1) for W541C250 body. - One external interrupt (RC Port) for W541C260 body; two external interrupts (RC port and INT pin) for W541C250 body. * 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 port by code option - Clock source can be main oscillator clock in the single-clock operation mode, or sub-oscillator clock in the dual-clock operation mode; operation mode is selected by code option
* MFP output pin
- Output is software selectable as modulating or non-modulating frequency - Works as frequency output specified by Timer 1
* Two built-in 14-bit frequency dividers
- Divider0: the clock source is the output of the main oscillator - Divider1: the clock source is the output of the sub-oscillator
* 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
- Enable/Disable the watchdog timer can be controlled by command or by option code; the control source (command or option code) can be determined by another option code
* Powerful instruction set: 115 instructions for W541C260 body
- 119 instructions for W541C250 body
* 8-level subroutine (include interrupt) nesting * Up to 1 S instruction cycle (with 4 MHz operating frequency) * Packaged in 80-pin QFP
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Publication Release Date: June 2, 2003 Revision A1
W541E260
3. BLOCK DIAGRAM
RAM (128*4) RA0 to 3
PORT RA VPP (RES) DATA (RA3) MODE (INT) Flash EEPROM (2048*16)
(look_up table 2K*4)
+1(+2)
ACC ALU PORT RB RB0 to 3
PORT RC PC Central Control Unit
IEF HEF EVF MR0 PEF SEF PM0 HCF PR
RC0 to 3
PORT RD
RD0 to 3
STACK (8 Levels)
PSR0 PSR1 PSR2
PORT RT
SEL
.
.
.
RE0 to 3
(RE0/DOUT, RE1/CLKO, RE2/DIN, RE3/CLKI)
Serial I/O
MUX
Timer 0 (8-bit)
Timer 1 (8-bit)
Modulation Frequency Pulse
SEL
MUX
MFP
Watchdog Timer (4-bit)
Divider 0 (14-bit)
VDD VSS Timing Generator RES INT
XIN
XOUT
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W541E260
4. PIN CONFIGURATION
X // RRMI R I A A F NE NN 1 0 PTSC1
X U V O TNDN 1CDC
X I N 2
O X O U T 2
VV M DDDD O DNHHDD EC1212
V D D 3
S E G 3 1
S E G 3 0
S E G 2 9
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
NNRRVVDCC CCEESPAOO 2 3 SPT MM A32
C O M 1
C O M 0
S E G 0
S E G 1
S E G 2
S E G 3
S E G 4
S E G 5
S E G 6
S E G 7
S E G 8
S E G 9
S E G 1 0
SN EC G 1 1
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Publication Release Date: June 2, 2003 Revision A1
W541E260
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 32.768 KHz crystal. External 10~20pF capacitor uses to get accurate freq in crystal mode. Output pin for sub-oscillator with internal oscillation capacitor. Built-in 20pF capacitor. Connected to 32.768 KHz crystal. 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. 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. External interrupt pin with pull-high resistor. This pin is bonding option for the W541C250 body. LCD segment output pins. Also can be used as DC output ports specified by option codes. LCD common signal output pins.
Static COM0 COM1 COM2 COM3 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
O
XIN2 XOUT2 RA0 to RA3 RB0 to RB3 RC0 to RC3 RD0 to RD3 RE0 to RE3 MFP
RES INT
I O I/O I/O I I O O I I O O
SEG0 to SEG31 COM0 to COM3
The LCD alternating frequency can be selected by code option. DH1, DH2 VDD1,VDD2, VDD3 I I Connection terminals for voltage doublers (halves) capacitor. Positive (+) supply voltage terminal. Refer to Functional Description.
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W541E260
Pin description, continued
SYMBOL VDD VSS VPP MODE DATA
I/O I I I I I/O Positive power supply (+). Negative power supply (-).
FUNCTION
Voltage control pin for the flash EEPROM programming, erasing and verifying. This pin has a built-in pull-low resistor. Mode selection pin for the flash EEPROM programming, erasing and verifying. This pin has a built-in pull-low resistor. Data I/O pin for the flash EEPROM programming and verifying. This pin has a built-in pull-low resistor.
6. ELECTRICAL 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
PARAMETER SYM. VDD IOP1 CONDITIONS No load (Ext-V) In dual-clock normal operation No load (Ext-V) In dual-clock normal operation No load (Ext-V) In dual-clock slow operation and Fm is stopped MIN. 2.4 TYP. 0.6 MAX. 5.5 2.5 UNIT V mA
(VDD-VSS = 3.0V, Fm = 4.19 MHz, Fs = 32.768 KHz, Ta = 25 C, LCD on; unless otherwise specified)
Op. Voltage Op. Current (Crystal type)
Op. Current (RC type)
IOP2
-
1
4
mA
Op. Current (Crystal type)
IOP3
-
8.5
20
A
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Publication Release Date: June 2, 2003 Revision A1
W541E260
DC Characteristics, continued
PARAMETER Hold Current (Crystal type) Hold Current (RC type)
SYM. IHM1
CONDITIONS Hold mode No load (Ext-V) In dual-clock normal operation 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 IOL = 3.5 mA IOH = 3.5 mA IOL = 2.0 mA IOH = 2.0 mA All Seg. ON VOL = 0.4V VLCD = 0.0V VOH = 2.4V VLCD = 3.0V IOL = 0.6 mA
MIN. -
TYP. 280
MAX. 450
UNIT A
IHM2
-
500
600
A
Hold Current (Crystal type) Stop Current (Crystal type) Stop Current (Crystal type) 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)
IHM3
-
4.0
6
A
ISM1
-
4.0
6
A
ISM2 VIL VIH VML VMH VABL VABH ILCD IOL1
VSS 0.7 VDD 2.4 2.4 0.4
0.1 -
2 0.3 VDD VDD 0.4 0.4 6 -
A V V V V V V A A
IOH1
0.3
-
-
A
VSL
-
-
0.4
V
VSH
IOH = 3 A
2.4
-
-
V
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W541E260
DC Characteristics, continued
PARAMETER Port RE Sink Current Port RE Source Current Input Port Pull-up Resistor
INT Pull-up Resistor RES Pull-up Resistor
SYM. IEL IEH RCD RINT RRES RVPP RMODE RDATA
CONDITIONS VOL = 0.9V VOH = 2.4V Port RC, RD VDD = 5V VDD = 5V VDD = 5V
MIN. 9 0.4 100 50 20 1.5 1.5 50
TYP. 1.2 350 250 100 2 2 100
MAX. 1000 1000 500 2.5 2.5 150
UNIT mA mA K K K M M K
VPP Pull-down Resistor MODE Pull-down Resistor DATA Pull-down Resistor
6.3
AC Characteristics
PARAMETER SYM. FOSC CONDITIONS RC type Crystal type 1 (Option low speed type) Crystal type 2 (Option high speed type) MIN. 400 TYP. 32.768 MAX. 4000 3580 10 % KHz UNIT
(VDD-VSS = 3.0V, Ta = 25 C; unless otherwise specified)
Op. Frequency
Frequency Deviation by Voltage Drop for RC Oscillator Instruction Cycle Time Reset Active Width Interrupt Active Width
f f
f(3V) - f(2.4V) f(3V)
TI TRAW TIAW
One machine cycle FOSC = 32.768 KHz FOSC = 32.768 KHz
1 1
4/FOSC -
-
mS S S
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Publication Release Date: June 2, 2003 Revision A1
W541E260
7. APPLICATION CIRCUIT
Vcc
VDD RA0 Output Signal RA3 RB0 RB1 RB2 RB3 RC0 RC1 RC2 RC3 RD0 RD1 RD2 RD3 COM0 COM3 SEG0 SEG31 DH1 DH2 VDD1 VDD2 VDD3
0.1 uF
LCD PANEL (1/3 Bias 1/4 Duty)
Connect to capacitor and VDD to generate LCD voltage Vcc
RES
0.1 uF
XOUT1 XIN1 XOUT2
RE0 RE1 RE2 RE3 MFP
Vcc
32.768 KHz
XIN2
VSS
470 W
0.1 uF
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W541E260
8. PACKAGE DIMENSIONS
8.1 80-Lead QFP
HD D
80 65
1
64
EH
E
24
41
25
e
b
40
c
2
AA See Detail F y A
1
Seating Plane
L L1 Detail F
Symbol
Dimension in inches
Dimension in mm
Min. Nom Max. Min. Nom Max.
0.130 0.004 0.107 0.112 0.012 0.014 0.004 0.006 0.546 0.551 0.782 0.787 0.025 0.031 0.728 0.964 0.039 0.087 0.740 0.976 0.047 0.094 0.117 0.018 0.010 0.556 0.792 0.037 0.752 0.988 0.055 0.103 0.004 0 12 0 0.10 2.73 0.30 0.10 13.87 19.87 0.65 18.49 24.49 1.00 2.21 2.85 0.35 0.15 2.97 0.45 0.25 3.30
A A1 A2 b c D E e HD HE L L1 y 0
14.00 14.13 20.00 20.13 0.80 0.95 18.80 19.10 24.80 25.10 1.20 2.40 1.40 2.62 0.10 12
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Publication Release Date: June 2, 2003 Revision A1
W541E260
9. REVISION HISTORY
VERSION A1 DATE June 2, 2003 PAGE DESCRIPTION Initial Issued
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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