MSM64P164 Datasheet, PDF (1/37 Pages) OKI electronic componets – 4-Bit Microcontroller with Built-in RC Oscillation Type A/D Converter and LCD Driver

E2E0045-38-96
¡ _¡ Semicond_Suc_etor_miconductor
This
Previous
vveerrssiioonn_M:: _{SSSeeMpp6.. 41199P99158}^P₆^r₄^eliminary
MSM64P164
4-Bit Microcontroller with Built-in RC Oscillation Type A/D Converter and LCD Driver
GENERAL DESCRIPTION
The MSM64P164 is a one-time-programmable ROM-version product, which has one-time
PROM (OTP) as internal program memory. On the other hand, the MSM64164C is a mask ROM-
version product, which has mask ROM as internal program memory.
Unlike the mask ROM-version MSM64164C, which has a P-well CMOS structure, the MSM64P164
has been fabricated with the N-well CMOS-structured EEPROM process technology. Therefore,
the MSM64P164 differs from the MSM64164C in the polarity of the power supply for LCD bias
generation and 5 V interface, and in the external circuit structure.
Unlike the mask ROM-version product, the MSM64P164 cannot be supplied in the form of a chip.
The MSM64P164 is an OTP-version product used to evaluate an application program.
The MSM64P164 has two operation modes, microcontroller operation mode and PROM mode.
The microcontroller operation mode is used to operate the MSM64P164 like a mask ROM-version
product and the PROM mode is used to program or read the PROM.
FEATURES
• Operating range
Operating frequencies
Operating voltage
Operating temperature
• Memory space
Internal program memory
Internal data memory
• RC oscillation type A/D converter
Counter A
Counter B
• Serial port
• LCD driver
(1) At 1/4 duty and 1/3 bias
(2) At 1/3 duty and 1/3 bias
(3) At 1/2 duty and 1/2 bias
• Buzzer driver
• Capture circuit
• Watchdog timer
• I/O port
Input-output port
Input port
Output port
: 32.768 kHz, 400 kHz
: 1.5 V/3.0 V selectable by mask option
Low supply current
: 0 to +65°C
: 4064 bytes
: 256 nibbles
: 2 channels
Time dividing 2-channel method
: 1/(10⁴ Â¥ 8) Â¥ 1
: 1/2¹⁴ Â¥ 1
: Synchronous 8-bit transfer
External clock/internal clock selectable
MSB first/LSB first selectable
: 34 outputs; duty ratio switchable by software
: 120 segments (max)
: 93 segments (max)
: 64 segments (max)
: 1 output (4 output modes selectable)
: 2 channels (256 Hz, 128 Hz, 64 Hz, 32 Hz)
: 3 ports ¥ 4 bits
: 1 port ¥ 4 bits
: 1 port ¥ 4 bits
1/37