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PDF EM78P803B Data sheet ( Hoja de datos )
| Número de pieza | EM78P803B | |
| Descripción | 8-BIT MCU | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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EM78P803B
8-bit MCU
2006/2/27
Version 1.3.5
ELAN MICROELECTRONICS CORP.
No. 12, Innovation 1st RD., Science-Based Industrial Park
Hsin Chu City, Taiwan
TEL: (03) 5639977
FAX: (03) 5780617
1 page  
EM78P803B
8-bit Micro-controller
I. Main Feature
Single power supply
Operating voltage range: 2.8V ~ 5.5V(7.1652MHz)
4.5V ~ 5.5V(14.331MHz)
2.2V ~ 5.5V(3.5826MHz/ERIC mode)
2.2V ~ 5.5V(Sleep/Idle/Green mode)
CPU
8-bit RISC kernel
99.9％ single instruction cycle commands
Clock
32.768KHz clock source
Built-in PLL to generate main clock 3.5826MHz x 0.5, 1, 2 and 4
Optional ERIC mode only with an external R
Timer and counter
Watch Dog: Programmable free running on chip watchdog timer
TCC: 8-bit real time clock/counter (TCC) with 8-bit prescaler
COUNTER1: 8-bit counter with 8-bit prescaler can be an interrupt source
COUNTER2: 8-bit counter can be an interrupt source
Two 8-bit counters can combine into one 16-bit counter when in R2F and 16-bit counter mode.
Both of counters have reload function.
Memory
8k x 13bits on chip Electrical One Time Programmable Read Only Memory (OTP-ROM)
0.5k x 8bits on-chip general RAM
112 x 8bits common registers
I/O
Up to 28 bi-directional tri-state I/O ports (15 independent I/O)
IO with internal Pull high, wake-up and interrupt functions
Operation mode
Four modes can be selected. (Main clock is generated by internal PLL.)
Mode
Sleep mode
Idle mode
Green mode
Normal mode
CPU status
Turn off
Turn off
Turn on
Turn on
Main clock
Turn off
Turn off
Turn off
Turn on
32.768 kHz clock status
Turn off
Turn on
Turn on
Turn on
Interrupt
Selective signal sources and overflow interrupt
STACK: 8 levels stack for subroutine nesting
8 interrupt source, 5 external, 3 internal
Reset
Power on reset, /POVD reset (by PAD option) or external /RESET pin
R to F Counter
1 channel 16-bit counter with 2-channel sensors connected.
LCD
LCD operation voltage chosen by software
Common driver pins: 8/4
Segment driver pins: 28
1/3 bias or 1/4 bias with output buffer
1/4 duty or 1/8 duty
PACKAGE
64-pad die (EM78P803BH)
100-pin QFP (EM78P803BQ)
_________________________________________________________________________________________________________________________________________________________________
* This specification are subject to be changed without notice. 1
2006/2/27 V1.3.5
5 Page 
EM78P803B
8-bit Micro-controller
VI. Pin Descriptions
Pin
Power
VDD
VSS
Clock for MCU
XIN
XOUT
PLLC
I/O
POWER
GROUND
I
O
I
ERIC
I
LCD driver
COM0..COM7
SEG0..SEG15
SEG24..SEG27
SEG16..SEG19
O
O
O (PORT8)
SEG20..SEG23 O (PORT5)
R to F Counter
IN
I
CF O
RF O
CRS O
RS O
Test
TEST
Reset
/RESET
I/O
P54 ~P57
I
I
I/O PORT5
P60 ~P67
I/O PORT6
P70 ~P77
I/O PORT7
P80 ~ P83
P94 ~ P97
PAD Option
/POVD
ERICen
I/O PORT8
I/O PORT9
I
I
Description
Chip power VDD
Chip ground GND
Input pin for 32.768kHz crystal
Output pin for 32.768kHz crystal
Phase locked loop capacitor, connect a capacitor 0.01u to 0.047u
to the ground.
Connect to VDD with a resister serially when in ERIC mode. This
pin is shared with PLLC
Common driver pins of LCD drivers
Segment driver pins of LCD drivers
Segment driver pins of LCD drivers
Shared with P80 ~ P83
Segment driver pins of LCD drivers
Shared with P54 ~ P57
External oscillation input
IN is shared with P60
Reference capacitor connection
CF is shared with P61
Reference resistor connection
RF is shared with P62
Resistor/capacitor sensor connection
CRS is shared with P63
Resistor sensor connection
RS is shared with P64
Test pin into test mode, normal low
Reset input. Low enable
PORT5 can be INPUT or OUTPUT port each bit
And P54 ~ P57 are shared with segment signal
PORT6 can be INPUT or OUTPUT port each bit
P60 ~ P64 are shared with IN, CF, RF, CRS and RS pin of R to F
counter.
PORT7 can be INPUT or OUTPUT port each bit
PORT7 have internal pull high function
P70/INT0 ~ P73/INT3 can be interrupt signals
PORT 8 can be INPUT or OUTPUT port each bit
And P80 ~ P83 are shared with segment signal.
PORT 9 can be INPUT or OUTPUT port each bit
P96, P97 have wake-up function.
Power on voltage detector reset
ERIC mode enable
Num
1
1
1
1
1
1
8
20
4
4
1
1
1
1
1
1
1
4
8
8
4
4
2
2
_________________________________________________________________________________________________________________________________________________________________
* This specification are subject to be changed without notice. 7
2006/2/27 V1.3.5
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EM78P803B.PDF ] | |
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