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PDF EM73PA88A Data sheet ( Hoja de datos )
| Número de pieza | EM73PA88A | |
| Descripción | 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT | |
| Fabricantes | ELAN Microelectronics Corp | |
| Logotipo |  |
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GENERAL DESCRIPTION
EM73PA88A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
EM73PA88A is an advanced single chip CMOS 4-bit one-time programming (OTP) micro-controller. It contains
16K-byte ROM, 500-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/
counters for the kernel function. EM73PA88A also equipped with 6 interrupt sources, 3 I/O ports (including 1
input port and 2 bidirection ports), LCD display (64x16), built-in sound generator and speech synthesizer can direct
drive speaker.
It's low power consumption and high speed feature are further strengten with DUAL, SLOW, IDLE and STOP
operation mode for optimized power saving.
FEATURES
• Operation voltage
: 2.2V to 4.8V.
• Clock source
: Dual clock system. Low-frequency oscillator is 32 KHz Crystal or RC oscillator
and high-frequency oscillator is a built-in internal oscillator (4.6 MHz).
• Instruction set
: 107 powerful instructions.
• Instruction cycle time : 1.7µs for 4.6M Hz (high speed clock).
244µs for 32768 Hz (low speed clock).
• ROM capacity
: 16K x 8 bits.
• RAM capacity
: 500 x 4 bits.
• Input port
: 1 port (P0.0-P0.3), IDLE/STOP releasing function is available by mask option.
(each input pin has a pull-up and pull-down resistor available by mask option).
• Bidrection port
: 2 ports (P4, P8). IDLE/STOP release function for P8(0..3) is available by mask
option.
• Built-in watch-dog-timer counter : It is available by mask option.
• 12-bit timer/counter : Two 12-bit timer/counters are programmable for timer, event counter and pulse
width measurement mode.
• Built-in time base counter : 22 stages.
• Subroutine nesting
: Up to 13 levels.
• Interrupt
: External interrupt . . . . . . 2 input interrupt sources.
Internal interrupt . . . . . . 2 timer overflow interrupts, 1 time base interrupt.
1 speech interrupt.
• LCD driver
: 64x16 dots, 1/16 duty, 1/5 bias with voltage multiplier.
• Sound effect
: Tone generator and random generator.
• Speech synthesizer
: 448K speech data ROM (use as 448K nibbles data ROM).
• PWM or current D/A : Output selection by mask option.
• Power saving function : SLOW, IDLE, STOP operation modes.
• Package type
: Chip form 109 pins.
QFP form 160 pins (AQ).
QFP form 128 pins (BQ).
* This specification are subject to be changed without notice.
10.8.2001 1
1 page  
PIN DESCRIPTIONS
EM73PA88A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
Symbol
Pin-type
Function
VDD
Power supply (+).
Power supply (+) for programming OTP.
VDD2
Power supply (+).
VSS Power supply (-).
Power supply (-) for programming OTP.
RESET
RESET-A
System reset input signal, low active.
Reset input signal for programming OTP.
Always internal pull-up.
CLK
OSC-G
Capacitor connecting pin for internal high frequency oscillator.
LXIN
OSC-B/OSC-H Crystal or RC osc connecting pin for low speed clock source.
LXOUT
OSC-B
Crystal osc connecting pin for low speed clock source.
P0(0..3)/WAKEUP0..3 INPUT-B
4-bit input port with IDLE/STOP releasing function
P0.0/ACLK : address counter clock for programming OTP.
P0.1/PGMB : program data to OTP cells for programming OTP.
P0.2/OEB : data output enable for programming OTP.
P0.3/DCLK : data in/out clock signal for programming OTP.
mask option :
wakeup enable, pull-up
wakeup enable, none
wakeup disable, pull-up
wakeup disable, pull-down
wakeup disable, none
P4(0..3)
I/O-O
4-bit bidirection I/O port with high current source.
mask option :
open-drain
push-pull, high current PMOS
push-pull, low current PMOS
P8.0(INT1)/WAKEUPA I/O-L
2-bit bidirection I/O port with external interrupt sources input and IDLE
P8.2(INT0)/WAKEUPC
/STOP releasing function.
P8.0/DIN : data input for programming OTP.
mask option :
wakeup enable, push-pull
wakeup disable, push-pull
wakeup disable, open-drain
P8.1(TRGB)/WAKEUPB I/O-L
2-bit bidirection I/O port with time/counter A,B external input and IDLE
P8.3(TRGA)/WAKEUPD
/STOP releasing function.
P8.1/DOUT : data output for programming OTP.
mask option :
wakeup enable, push-pull
wakeup disable, push-pull
wakeup disable, open-drain
BZ1 Tone / Speech PWM / D/A output pin.
BZ2 Tone / Speech PWM output pin.
V1, V2, V3, V4, V5,
LCD bias pins.
VA, VB
COM0~COM15
LCD common output pins.
SEG0~SEG63
LCD segment output pins.
TEST/VPP
Test pin must be floating.
VPP : high voltage (12V) power source for programming OTP.
* This specification are subject to be changed without notice.
10.8.2001 5
5 Page 
EM73PA88A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
PROGRAM COUNTER (16K ROM) Preliminary
Program counter ( PC ) is composed by a 13-bit counter, which indicates the next executed address for the
instruction of program ROM instruction.
For BRANCH and CALL instructions, PC is changed by instruction indicating. PC only can indicate the address
from 0000h-1FFFh. The bank number is decided by P3.
(1) Branch instruction:
SBR a
Object code: 00aa aaaa
Condition: SF=1; PC ← PC 12-6.a ( branch condition satisified )
PC Hold original PC value+1 a a a a a a
SF=0; PC← PC +1( branch condition not satisified)
PC Original PC value + 1
LBR a
Object code: 1100 aaaa aaaa aaaa
Condition: SF=1; PC ← PC 12.a ( branch condition satisified )
PC
aHold
+2
aa
a
a
a
a
a
a
a
a
a
SF=0; PC← PC +2( branch condition not satisified)
PC Original PC value + 2
SLBR a
Object code: 0101 0101 1100 aaaa aaaa aaaa (a:1000h~1FFFh)
0101 0111 1100 aaaa aaaa aaaa (a:0000h~0FFFh)
Condition: SF=1; PC ← a ( branch condition satisified)
PC a a a a a a a a a a a a a
SF=0 ; PC ← PC + 3 ( branch condition not satisified )
PC Original PC value + 3
(2) Subroutine instruction:
SCALL a
Object code: 1110 nnnn
Condition : PC ← a ; a=8n+6 ; n=1..Fh ; a=86h, n=0
PC 0 0 0 0 0 a a a a a a a a
LCALL a
Object code: 0100 0aaa aaaa aaaa
Condition: PC ← a
* This specification are subject to be changed without notice.
10.8.2001 11
11 Page | ||
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| PDF Descargar | [ Datasheet EM73PA88A.PDF ] | |
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