View MSM6442_207474.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

E2E0017-38-93 Semiconductor
Semiconductor MSM6442
Built-in LCD Driver 4-Bit Microcontroller
This version: Sep. 1998 MSM6442 Previous version: Mar. 1996
GENERAL DESCRIPTION
The MSM6442 is a 4-bit microcontroller with a built-in LCD controller/driver, developed to support control systems. The MSM6442 is most suitable for various on-vehicle meters, watches, audio equipment, remote controllers, multifunctional telephones, and instrumentation units.
FEATURES
* ROM * RAM * I/O port Input-output port : 2048 words 8 bits : 128 words 4 bits
: 4 ports 4 bits 1 port 2 bits Input port : 1 port 1 bit * LCD driver : 46 segments (static) : 92 segments (1/2 duty) * Stack (RAM) : 16 levels * Four interrupt sources (external, CLK, TBC, T/C) * Internal counter : 12-bit time base counter 8-bit programmable timer/event counter * Crystal and ceramic oscillation * 76 instructions * Minimum instruction execution time : 952 ns @ 4.2 MHz * Operating range Power supply voltage : 4.5 to 5.5 V (@ 4.2 MHz) 3.0 to 6.0 V (@ 1 MHz) Operating temperature : -40 to +85C * Supply current (Typ.) : 6 mA (@ 5 V, 4.2 MHz) 1 mA (@ 3 V, 1 MHz) * Power down function : Dependent on STOP instruction * Package options: 80-pin plastic QFP (QFP80-P-1420-0.80-K): (Product name : MSM6442-GS-K) 80-pin plastic QFP (QFP80-P-1420-0.80-BK) : (Product name : MSM6442-GS-BK) indicates a code number.
1/12
Semiconductor
BLOCK DIAGRAM
RAM 128 4 bits C SP H L ALU ACC
INST DEC
ROM 2048 8 bits
PC
P6
P5 LCD
P9 8-Bit T/C
INTEF PC INTRQF PD INT. CONT 12-Bit TBC
PB T. C.
OSC0 OSC1 TEST1 TEST2 RESOUT
T. C.
CLKI WDT
BUFFER REG LCD DRV
DIVIDER T. C.
T/C P4 INT 3210 INTOUT P3 P1 P0
RESET VDD GND
LCDGND
VM
SEG46 COM2 XT COM1 SEG1
XT TEST3
BZ
3210
3210 CIN
3210
MSM6442
2/12
Semiconductor
MSM6442
PIN CONFIGURATION (TOP VIEW)
79 LCDGND 78 SEG46 77 SEG45 76 SEG44 75 SEG43 74 SEG42 73 SEG41 72 SEG40 71 SEG39 70 SEG38 69 SEG37 68 SEG36 67 SEG35 66 SEG34 65 SEG33 80 COM1
COM2 VM GND XT XT TEST3 P3.0 P3.1 P3.2 P3.3 P4.0 P4.1 P4.2 P4.3 OSC1 OSC0 INTOUT RESOUT BZ RESET INT TEST2 TEST1 P0.0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
64 SEG32 63 SEG31 62 SEG30 61 SEG29 60 SEG28 59 SEG27 58 SEG26 57 SEG25 56 SEG24 55 SEG23 54 SEG22 53 SEG21 52 SEG20 51 SEG19 50 SEG18 49 SEG17 48 SEG16 47 SEG15 46 SEG14 45 SEG13 44 SEG12 43 SEG11 42 SEG10 41 SEG9
P0.1 25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
P0.2 P0.3 CIN/P1.0 P1.1 P1.2 P1.3 VDD SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8
80-Pin Plastic QFP
40
3/12
Semiconductor
MSM6442
PIN DESCRIPTIONS
Pin 24 to 27 28 to 31 7 to 10 11 to 14 33 to 48 49 to 78 80 1 21 17 20 18 19 16 15 5 4 23 22 6 32 79 2 3 Symbol P0.0 to P0.3 P1.0 to P1.3 P3.0 to P3.3 P4.0 to P4.3 SEG1 to SEG16 SEG17 to SEG46 COM1 COM2 INT INTOUT RESET RESOUT BZ OSC0 OSC1 XT XT TEST1 TEST2 TEST3 VDD LCDGND VM GND I/O O O O O I O I O O I O I O -- -- -- I I I/O I I/O Type Description Pseudobidirectional configuration input-output ports (P1.0 is also used as count input CIN) Pseudobidirectional configuration input-output port LCD segment output (can be assigned to data output in 4 bits) LCD segment output LCD common output 1 LCD common output 2 External interrupt input pin Interrupt request output pin Reset input pin Reset output pin 2048 Hz pulse output pin for buzzer Crystal or ceramic resonator connection (system clock) 32.768 kHz crystal oscillator connection (reference clock used for LCD control) Testing pin 1 (open) Testing pin 2 (open) (connected to VDD) Testing pin 3 (open) Power supply (5 V) Negative power supply for LCD (VDD-LCDGND)/2 supply voltage output or supply voltage input Power supply (0 V)
4/12
Semiconductor
MSM6442
ABSOLUTE MAXIMUM RATINGS
Parameter Power Supply Voltage Input Voltage Output Voltage LCD Voltage Storage Temperature Symbol VDD VI VO LCDGND TSTG -- Ta = 25C Condition Rating -0.3 to +7 -0.3 to VDD -0.3 to VDD VDD - 9 to VDD -55 to +150 Unit V V V V C
RECOMMENDED OPERATING CONDITIONS
Parameter Power Supply Voltage LCD Voltage Data-Hold Voltage Operating Temperature LCD Clock Oscillation Frequency Fan Out (I/O Port) Symbol VDD LCDGND VDDH Top fXT N Condition fOSC 1 MHz fOSC 4.2 MHz *1 Oscillation off -- *2 MOS load TTL load Range 3 to 6 4.5 to 5.5 VDD - 8 to 0 2 to 6 -40 to +85 32.768 15 1 Unit V V V V C kHz -- --
*1 A voltage of (VDD-LCDGND) volts is applied to LCD. *2 Oscillation circuit for LCD clock (XT, XT pins) is for crystal oscillation only.
5/12
Semiconductor
MSM6442
ELECTRICAL CHARACTERISTICS
DC Characteristics
(VDD = 5 V 10%, LCDGND = 0 V, Ta = -40 to +85C) Parameter "H" Input Voltage "L" Input Voltage Applied pin INT *1 *3 *1, *4 OSC1 *1 "H" Output Voltage *2
SEG1 to SEG46
Symbol VIH VIL
Condition -- -- -- IO = -15 mA IO = -400 mA IO = -10 mA IO = -50 mA IO = 1.6 mA IO = 15 mA IO = 10 mA IO = 50 mA
Min. Typ. Max. Unit 2.4 3.6 0 4.2 2.4
VDD-0.2 VDD-0.2
-- -- -- -- -- -- -- -- -- -- --
VDD VDD 0.8 -- -- -- -- 0.4 0.4 0.2 0.2 + 0.2
V V V V V V V V V V V V mA mA mA mA mA mA mA
VOH
COM1, COM2 *1, *2 "L" Output Voltage OSC1
SEG1 to SEG46
-- -- -- -- - 0.2 --
VOL
COM1, COM2 "M" Output Voltage COM1, COM2 OSC0 "H" Input Current XT INT, RESET OSC0 "L" Input Current XT INT, RESET "H" Output Current *1 IOH IIL IIH VOM
IO = 0.5 mA
VDD/2 -- VDD/2 -- -- -- -- -- -- -- -- 0.2 15 7 1 -15 7 -30 --
VI = VDD
-- -- --
VI = 0 V VO = 2.4 V VO = 0.4 V VDD = 2 V,Ta = 25C No load Display off XT pin is fixed to "L" No load Display off XT pin is fixed to "L" No load Display off In stop mode fXT = 32.768 kHz No load Display off fOSC = 4.2 MHz fXT = 32.768 kHz
-- -- -0.1 -- --
-1.2 mA 10 mA
Power Supply Current (In Stop Mode) (32.768 kHz, Without Crystal Oscillator) IDDS
--
1
100
mA
Power Supply Current (In Stop Mode)
IDDL
--
100
200
mA
Power Supply Current
IDD
--
6
12
mA
*1 *2 *3 *4
Applied to P0, P1, P3, and P4. Applied to INTOUT, RESOUT, and BZ. Applied to OSC0, XT, and RESET. Applied to OSC0, XT, INT, and RESET.
Note: "M" output voltage is an intermediate voltage that is output to the COMMON pins during dynamic display. (VM pin is open.) 6/12
Semiconductor AC Characteristics
MSM6442
(VDD = 5 V 10%, Ta = -40 to +85C) Parameter Clock (OSC0) Pulse Width Cycle Time Input Data Setup Time Input Data Hold Time INT Input Data Pulse Width CT Clock Pulse Width Data Delay Time Reset Input Pulse Width Symbol tfW tCY tDS tDH tDW1 tDW2 tDR tWRS Condition -- -- -- *1 -- -- CL = 15 pF *2 Min. 119 952 120 120 120 2/8 tCY + 120 -- 2 tCY Typ. -- -- -- -- -- -- -- -- Max. -- -- -- -- -- -- 300 -- Unit ns ns ns ns ns ns ns ns
*1 To release power down by inputting an "L" level into INT pin, the pulse width should be longer than the time for the oscillation stabilization at OSC0. *2 The condition of stable oscillation. To release power down by reset, the pulse width should be longer than the time for oscillation stabilization at OSC0.
7/12
Semiconductor Timing Diagrams
MSM6442
OSC0 tfW tfW tCY
OSC0
P0, P1, P3, P4
INPUT DATA tDS tDH
OSC0
P0, P1, P3, P4 tDR
OUTPUT DATA
INT tDW1
P1.0/CIN tDW2 tDW2
RESET tWRS
8/12
Semiconductor Output Waveforms for LCD Drivers Static mode
VDD COM1, COM2 LCDGND VDD SEGn (n = 1 to 46) LCDGND
MSM6442
VDD-LCDGND COM1 to SEGn COM2 to SEGn DISPLAY OFF ON OFF DISPLAY OFF 0 = -(VDD-LCDGND)
Dynamic mode
VDD VM LCDGND VDD VM LCDGND VDD SEGn (n = 1 to 46) LCDGND
COM1
COM2
COM1 to SEGn DISPLAY OFF
ON
OFF
VDD-LCDGND VM-LCDGND 0 = -(VM-LCDGND) = -(VDD-LCDGND) VDD-LCDGND VM-LCDGND 0 = -(VM-LCDGND) = -(VDD-LCDGND)
COM2 to SEGn DISPLAY OFF
OFF
ON
9/12
Semiconductor
MSM6442
NOTES ON USE
Notes on Using Ports 5 and 6 of MSM6442 The MSM6442 uses Port 5 (P5) and Port 6 (P6) to rewrite the display in the LCD and the dedicated registers in LCD section, and to read the interrupt indication flag. Writing and reading is completed when data has been written using P5 and P6, in this order successively. Therefore, if an interrupt occurs during operation of P5 and P6 and these ports are operated by the interrupt routine, the MSM6442 may not operate normally. Countermeasure Disable a process interruption during operation of P5 and P6. Make the program interrupt disabled when rewriting the display in LCD, rewriting a dedicated register such as the system control register (SCR), or reading/resetting the interrupt indication flag. Note that the program examples provided in the User's Manual use the assumption that each program is in the interrupt disabled state. Therefore, when executing any of the program examples in the interrupt enabled state, execute the MDI and MEI instructions according to the following examples: (1) Writing data into a dedicated register LAI m Set write data m MDI Disable interrupt (*1) OPD 6 LAI n Set control command n OPD 5 MEI Enable interrupt (*2) RPBD 5, 3 End of write processing (2) Reading the interrupt indication flag LAI 0FH MDI Disable interrupt (*1) OPD 6 LAI 0AH Set control command 0AH OPD 5 IPD 6 Read flag MEI Enable interrupt (*2) RPBD 5, 3 End of read processing *1 If an accumulator is not saved during interrupt processing, the MDI instruction must be executed before the LAI instruction is executed. *2 During actual processing, an interrupt is enabled after the execution of the RPBD 5, 3 instruction.
10/12
Semiconductor
MSM6442
PACKAGE DIMENSIONS
(Unit : mm)
QFP80-P-1420-0.80-K
Mirror finish
Package material Lead frame material Pin treatment Solder plate thickness Package weight (g)
Epoxy resin 42 alloy Solder plating 5 mm or more 1.27 TYP.
Notes for Mounting the Surface Mount Type Package The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore, before you perform reflow mounting, contact Oki's responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times).
11/12
Semiconductor
MSM6442
(Unit : mm)
QFP80-P-1420-0.80-BK
Mirror finish
Package material Lead frame material Pin treatment Solder plate thickness Package weight (g)
Epoxy resin 42 alloy Solder plating 5 mm or more 1.27 TYP.
Notes for Mounting the Surface Mount Type Package The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. Therefore, before you perform reflow mounting, contact Oki's responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times).
12/12

▲Up To Search▲

Price & Availability of MSM6442

	To Download MSM6442 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .