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PDF SH68689 Data sheet ( Hoja de datos )
| Número de pieza | SH68689 | |
| Descripción | Keyboard Controller | |
| Fabricantes | Sino Wealth | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SH68689 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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SH68689
Keyboard Controller
Features
Built-in 6502 8-bit CPU
2MHz CPU operation frequency
8K bytes of ROM
160 bytes of SRAM
One 8-bit programmable base timer with 1 - 256 µsec interval
29 programmable bi-directional I/O pins
3 LED direct sink pins with internal serial resistors
Built-in RC oscillator with an external resistor
Mask option for DATA/CLK and I/O Port driving capability
Watch-dog timer
Built-in power-on reset
Built-in low voltage reset
CMOS technology for low power consumption
Available in CHIP FORM
General Description
SH68689 is a single chip micro-controller for keyboard applications. It incorporates a 6502 8-bit CPU core, 8K bytes of ROM
and 160 bytes of RAM used as working RAM and stack area. It also includes 29 programmable bi-directional I/O pins and one
8-bit pre-loadable base timer.
Additionally, it includes a built-in low voltage reset, a 4MHz RC oscillator that only requires an externally applied resistor, and a
watch-dog timer preventing system standstill.
1 V2.0
1 page  
Application Circuit For Windows 2000 Standard Code (for reference only)
SH68689
47K
S0 P15 R
S1 P30
Scroll Lock
S2 P31
LED 0
S3 P00
.1uF
S4 P01
Num Lock
S5 P02
LED 1
S6 P03
S7 P04
Caps Lock
S8 P13
LED 2
S9 P14
S10 P12
S11 P10
S12 P07
S13 P06
S14
SH68689
P05
VDD
VDD
S15 P11
S16 P16
10uF
S17 P17
S18 P32 GND
GND
R0 P20
R1 P21
DATA
R2 P22
DATA
R3 P23
R4 P24
CLOCK
R5 P25
CLOCK
R6 P26
R7 P27 RESET
0.1uF
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet SH68689.PDF ] | |
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