SC73C1402
4-BIT MCU FOR REMOTE CONTROLLER(MASK TYPE)
DESCRIPTION
SC73C1402 is one of Silan’ 4-bit CMOS single-chip micro-
s
controllers for infrared remote control transmitters (IRCTs). It can
be implemented in various IRCT circuits by mask option.
SOP-20-300-1.27
FEATURES
* Operating voltage range: (2.0 ~ 4.0V)
Low static power consumption (<1uA)
* Program memory: 2Kx 9 bits
The last 1K areas can also be used as data table
* Data memory (RAM): 16 x 4 bits
* Timer/counter: 10~15 bits
* 20 I/O ports, where there is a 4-bit input, two 4-bit outputs and
two 4-bit programmable input/output ports(P53 is output but
not used as keypress).
* Oscillator frequency (fosc):
300KHz~2MHz or 2MHz~6MHz selectable by mask option
* Operating frequency (fmain):
fmain=fosc
(when fosc in the range of 300KHz~2MHz)
fmain=fosc/8 (when fosc in the range of 2MHz~6MHz)
* Carrier frequency: fmain/12
* Carrier duty: 1/2 or 1/3 duty selectable by program
* Instruction cycle: 5/fmain
* Handles various user’ codes, repeat key, persist-key press
APPLICATIONS
s
and many other functions
* Infrared remote control devices, such
* Power on reset
as TV, Video Cassette Recorder, VTR,
* Supports voltage-drop detection
laser phonograph and acoustics
* Supports 56 keys in 20-pin package, and 80 keys in 24-pin
remote controllers.
package.
SSOP-20-300-0.65
SOP-20-375-1.27
ORDERING INFORMATION
Device
SC73C1402
SC73C1402A
SC73C1402B
SC73C1402C
SC73C1402D
SC73C1402E
Package
SOP-24-375-1.27
SOP-20-300-1.27
SSOP-20-300-0.65
SOP-20-375-1.27
DIE
SSOP-24-300-0.65
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1
2005.12.19
Page 1 of 20
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