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隆 Semiconductor

MSM6641/6641E-xx

隆 Semiconductor

Built-in Remote Control Transmission Circuit 4-Bit Microcontroller

MSM6641/6641E-xx

GENERAL DESCRIPTION

The MSM6641, powered by a single battery, is a 4-bit microcontroller fabricated in OKI鈥檚 low-

voltage CMOS technology. A remote-control output generator built into this device provides

remote-control output.

The MSM6641 is best suited to remote-control applications.

FEATURES

鈥?Operating range

Operating voltage

Operating frequency

Operating temperature

鈥?Memory space

ROM

RAM

鈥?Minimum instruction execution time

鈥?I/O port

Input port

: 1.5 V (MSM6641)

3.0 V (MSM6641E)

: 1 MHz

: 鈥?0 to +70擄C

: 4096 words

脳

17 bits

: 64 words

脳

4 bits

: 16

碌s

: 2 ports

樓

4 bits

1 port

樓

1 bit

Output port

: 2 ports

樓

4 bits

1 port

樓

1 bit

鈥?Remote-control output port

: 1

The remote-control output circuit consists of a carrier generator, a guide pulse and data

pulse generator, and an output waveform controller.

The remote control output can be provided by setting the control registers.

鈥?Key-On Wake-Up function

Oscillation can be stopped to turn off microcontroller operation.

Application of predetermined input levels to the input ports turns on oscillation and

microcontroller operation.

鈥?Halt release timers

: 4

Timer frequencies are selectable.

鈥?Watchdog timers

: 2

鈥?Clock

: 1 MHz ceralock resonator

鈥?Power supply voltage

: 1.5 V/3.0 V (mask option)

鈥?Package:

24-pin plastic SOP (SOP24-P-430-K) (Product name : MSM6641-樓樓GS-K, MSM6641E-xxGS-K)

Chip

樓樓

indicates the code number.

225

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