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PDF EM78P447N Data sheet ( Hoja de datos )
| Número de pieza | EM78P447N | |
| Descripción | 8-Bit Microprocessor | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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EM78P447N
8-Bit Microprocessor
with OTP ROM
Product
Specification
DOC. VERSION 1.5
ELAN MICROELECTRONICS CORP.
January 2010
1 page  
Contents
Doc. Version
1.0
1.1
1.2
1.3
1.4
1.5
Specification Revision History
Revision Description
Initial version
Added four kinds of package type
Added 28-skinny DIP package type
Added new 28-pin assignment
Modify code option WORD0 bit10,bit9 set to “1”
1 Modify the description of package information SDIP
into SKDIP.
2 Change the figure of package information.
3 Modify the (A) description of Sleep 2 mode.
Date
2004/10/29
2005/03/30
2005/11/28
2006/07/27
2006/10/26
2010/01/18
Product Specification (V1.5) 01.18.2010
v
5 Page 
EM78P447N
8-Bit Microcontroller with OTP ROM
3.4 EM78P447NBP, EM78P447NBM, EM78P447NBWM,
and EM78P447NBK Pin Description
Symbol Pin No. Type
Function
8~11,
P50~P57 2~1, I/O Bidirectional 8-bit input/output pins.
32~31
P60~P67 12~19
I/O
Bidirectional 8-bit input/output pins. These can be pulled -high
internally by software control.
Bidirectional 8-bit input/output pins.
P70~P77 20~27
I/O
P74~P75 can be pulled-high internally by software control.
P76~P77 can have open-drain output by software control.
P70 and P71 can also be defined as R-option pins.
/INT 7 I External interrupt pin triggered by a falling edge.
OSCI
29
I
Crystal type: Crystal input terminal or external clock input pin.
RC type: RC oscillator input pin.
OSCO
Crystal type: Output terminal for crystal oscillator or external
clock input pin.
28
I/O RC type:
Instruction clock output.
External clock signal input.
TCC
3
I
Real time clock/counter (with Schmitt trigger input pin), must be
tied to VDD or VSS if not in use.
/RESET
30
I
Input pin with Schmitt trigger. If this pin remains at logic low,
the controller will also remain in reset condition.
VDD
4 - Power supply
VSS
6 - Ground
NC 5 - No connection
Product Specification (V1.5) 01.18.2010
(This specification is subject to change without further notice)
5
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EM78P447N.PDF ] | |
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