MSM80C50

Features:

• Lower power consumption enabled by CMOS silicon gate process
• Completely static operation
• Improved power-down feature
• Instruction cycle : 1.36 s (11 MHz) VCC=4.5 to 6.0 V (MSM80C48/49) 2.5 s (6 MHz) VCC=3.5 to 6.0 V (MSM80C50)
• 111 instructions
• All instructions are usable even during execution of external ROM instructions.
• Operation facility Addition, logical operations, and decimal adjust
• Program memory (ROM) : 1K words ¥ 8 bits (MSM80C48)
: 2K words ¥ 8 bits (MSM80C49)
: 4K words ¥ 8 bits (MSM80C50)
• Data memory (RAM) : 64 words ¥ 8 bits (MSM80C48)
: 128 words ¥ 8 bits (MSM80C49)
: 256 words ¥ 8 bits (MSM80C50)
• Two sets of working registers
• External and timer interrupts
• Two test inputs
• Built-in 8-bit timer counter
• Extendable external memory and I/O ports
• I/O port Input-output port : 2 ports *8 bits Data bus input-output port : 1 port * 8 bits
• Single-step execution function
• Wide range of operating voltage, from + 2.5 V to + 6 V of VCC
• High noise margin action
• Compatible with Intel's 8048, 8049 and 8050
• Package 40-pin plastic DIP (DIP40-P-600-2.54) : (MSM80C48-¥¥¥RS)
                                                                               (MSM80C49-¥¥¥RS)
                                                                               (MSM80C50-¥¥¥RS)
                                                                               (MSM80C35RS)
                                                                               (MSM80C39RS)
                                                                               (MSM80C40RS)
44-pin plastic QFP(QFP44-P-910-0.80-2K) : (MSM80C48-¥¥¥GS-2K)
                                                                    (MSM80C49-¥¥¥GS-2K)
                                                                    (MSM80C50-¥¥¥GS-2K)
                                                                    (MSM80C35GS-2K)
                                                                    (MSM80C39GS-2K)
                                                                    (MSM80C40GS-2K)
                                                                    ¥¥¥ indicates the code number.


Pinout

 

Specifications

Parameter	Symbol	Condition	Rating	Unit
Power Supply Voltage	VDD	Ta = 25°C	0.5 to 7	V
Input Voltage	VIN	Ta = 25°C	0.3 to VCC +0.5	V
Storage Temperature	TSTG	Ta = 25°C	65 to +150	°C

Description

The OKI MSM80C48/MSM80C49/MSM80C50 are 8-bit, low-power, high-performance microcontrollers implemented in silicon-gate complementary metal-oxide semiconductor technology. Integrated within these chips are 8K/16K/32K bits of mask program ROM, 512/1024/2048 bits of data RAM, 27 I/O lines, built-in 8 bit timer/counter, and oscillator. Pro-gram memory and data paths of MSM80C50 are byte wide. Eleven new instructions have been added to the NMOS version's ins-truction set, thereby optimizing power down, port data transfer, decrement and port float functions. Available in 40-pin plastic DIP (RS) or 44-pin plastic flat packages QFP (GSK).