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PDF EM78P257 Data sheet ( Hoja de datos )
| Número de pieza | EM78P257 | |
| Descripción | 8-BIT MICROCONTROLLER | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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EM78P257
8-Bit Microcontroller
with OTP ROM
Product
Specification
DOC. VERSION 1.5
ELAN MICROELECTRONICS CORP.
May 2007
1 page  
Contents
5.12.2 Function Description........................................................................................59
5.12.2.1 Operation of the Hardware Modulator...............................................59
5.12.3 Pin Description ................................................................................................60
5.12.4 Programming the Related Registers................................................................60
5.12.5 IR Mode Timing ...............................................................................................63
5.13 Code Option ..................................................................................................... 64
5.13.1 Code Option Register (Word 0) .......................................................................64
5.13.2 Customer ID Register (Word 1) .......................................................................65
5.14 Instruction Set .................................................................................................. 66
5.15 Timing Diagrams .............................................................................................. 69
6 Absolute Maximum Ratings ................................................................................... 70
7 Electrical Characteristics ....................................................................................... 70
7.1 DC Electrical Characteristic.............................................................................. 70
7.2 AC Electrical Characteristic.............................................................................. 72
7.3 Device Characteristic ....................................................................................... 73
APPENDIX
A Package Types......................................................................................................... 84
B Package Information ............................................................................................... 84
B.1 18-Lead Plastic Dual in line (PDIP) — 300 mil ................................................. 84
B.2 18-Lead Plastic Small Outline (SOP) — 300 mil .............................................. 85
B.3 20- Lead Plastic Shrink Small Outline (SSOP) — 209 mil ............................... 85
B.4 20-Lead Plastic Dual in line (PDIP) — 300 mil ................................................. 86
B.5 20-Lead Plastic Small Outline (SOP) — 300 mil .............................................. 86
Product Specification (V1.5) 05.02.2007
•v
5 Page 
EM78P257
8-Bit Microcontroller with OTP ROM
4.3 EM78P257BP/BM/BKM
Symbol Pin No. Type
Function
P70~P71
16, 5
General purpose input/output pin
I/O P71 is input pin only
Default value after a power-on reset
P60~P67
7~14
General purpose input/output pin
I/O Open-drain
Default value after a power-on reset
P50~P57
General purpose input/output pin
1~4
17~20
I/O
Pull-high/pull-down
Default value after a power-on reset
Wake up from sleep mode when the status of the pin changes
CIN1-, CIN1+ 17, 18 I
CIN2-, CIN2+
CIN3-, CIN3+
CIN4-, CIN4+
4, 3
8, 9
13, 12
I
I
I
“-“ : the input pin of Vin- of the comparator
“+” : the input pin of Vin+ of the comparator
CO1, CO2
19, 2
O Pin CO1~4 are the comparator outputs
CO3, CO4
10, 11 O
OSCI
17 I Crystal type: Crystal input terminal or external clock input pin
RC type: RC oscillator input pin
OSCO
Crystal type: Crystal input terminal or external clock input pin.
16 I/O RC type: clock output with a duration of one instruction cycle
External clock signal input
/RESET
Internal Pull-high is on if defined as /RESET.
If set as /RESET and remains at logic low, the device will be
5 I reset
Voltage on /RESET/Vpp must not exceed Vdd during normal
mode
TCC
TCC1, TCC2
TCC3, TCC4
TCC5, TCC6
4
8, 13
19, 18
1, 20
I External Timer/Counter input
IR OUT
14` O IR mode output pin, capable of sinking 20mA
/INT 7 I External interrupt pin triggered by a falling edge
VDD
15 – Power supply
VSS
6 – Ground
Product Specification (V1.5) 05.02.2007
(This specification is subject to change without further notice)
•5
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EM78P257.PDF ] | |
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