MSM64P155

Features:

Operating range
Operating voltage (mask option) : 1.5 V/3.0 V
Operating frequency : 32.768 kHz crystal oscillation
Approx. 32 kHz RC oscillation
Minimum instruction execution time : 91 ms
General memory space : 4064 bytes (PROM)
Local memory space : 256 nibbles
LCD driver : 64
Common driver 4
Segment driver 60
1/4 duty, 1/3 bias; 240 segments (60 4)
1/3 duty, 1/3 bias; 180 segments (60 3)
I/O port
Input-output port : 2 ports 4 bits (open-drain output/CMOS outputselectable; pull-down resistor input/high-impedanceinput selectable)
Input port : 1 port 2 bits (pull-down resistor input/high-impedanceinput selectable)
1 port 4 bits (pull-down resistor input/high-impedanceinput selectable)
Output port : 1 port 4 bits (CMOS output)
Event counter : 1 channel
Melody output : 2
Capture circuits : 2 channels
256 Hz, 128 Hz, 64 Hz, 32 Hz
Interrupt sources : 10 sources
External 4, time base 4, melody 2
(When TST3 = "1", six time base sources)
Clock generation circuit (mask option) : Crystal/RC oscillationPackage:
100-pin plastic QFP (QFP100-P-1420-0.65-BK)
Product name :
MSM64P155-001GS-BK (crystal oscillation, 1.5 V, blanked PROM)
MSM64P155L-002GS-BK (crystal oscillation, 3.0 V, blanked PROM)
MSM64P155-003GS-BK (RC oscillation, 1.5 V, blanked PROM)
MSM64P155L-004GS-BK (RC oscillation, 3.0 V, blanked PROM)
MSM64P155-xxxGS-BK (crystal/RC oscillation, 1.5 V, written PROM)
MSM64P155L-xxxGS-BK (crystal/RC oscillation, 3.0 V, written PROM)
xxx indicates a code number.


Pinout




Description

The MSM64P155 (1.5 V)/64P155L (3.0 V) is a one-time-programmable ROM version product,which has one-time PROM (OTP) as internal program memory.  On the other hand, theMSM64155 is a mask ROM-version product, which has mask ROM as internal program memory.Unlike the mask ROM-version MSM64155 which has a P-well CMOS structure, the MSM64P155/64P155L has been fabricated with the N-well CMOS-structured EPROM process technology.Therefore, the MSM64P155/64P155L differs from the MSM64155 in the polarity of the powersupply for LCD bias generation and in the external circuit structure.
Unlike the mask ROM-version product, the MSM64P155/64P155L cannot be supplied in theform of a chip.  The MSM64P155/64P155L is an OTP-version product used to evaluate anapplication program.
The MSM64P155/64P155L has two operation modes, microcontroller operation mode andPROM mode.  The microcontroller operation mode is used to operate the MSM64P155/64P155Llike a mask ROM-version product and the PROM mode is used to program or read the PROM.