IN5732

Features:

Supply voltage                 1.5V or 3V (Mask option-selectable)
Current dissipation          3.0 uA Typ. (Ag Battery version, 32KHz crystal oscillation, during timekeeping operation)
                                        1.5 uA Typ. (Li Battery version, 32KHz crystal oscillation, during timekeeping operation)
Oscillation                        Crystal oscillation for timekeeping (32.768 KHz); or CR oscillator.
Output pins for                 27 pins
LCD drive
                                         Drivable LCD panel                Number of Drivable LCD segment
                                        1/2 bias   1/3 duty                               81 segments
                                        1/2 bias   1/2 duty                               54 segments
                                        Static                                                   27 segments
On chip melody function   3 octaves (the melody length is solfware-controlled. One Musical note requires one byte.)
Number of input pins        8
Number of out pins           3 pins (Output dedicated to alarm: 2 pins, general-purpose output: 1 pin).
Possible to use LCD panel drive output pins as output pin-only ports (Mask optionselectable)
ROM                                  2048 X 8 bits
RAM                                  48 X 4 bits
Cycle Time                        CR oscillation at 65 Hz            60us
                                         32.768 KHz crystal                 122us
On chip step-up / step down circuit
Instruction set                 92 instructions
Table read
instruction
1 level subroutine nesting on-chip 15 bit divider for timekeeping (delivers an overflow single every 64ms/500ms when a 32.768 KHz crystal is used).
HALT function


Specifications

Parameter	Sign.	Pins and Conditions	Value	Unit
Maximum Supply Voltage	VSS1 VSS2		-4.0 to +0.3 -4.0 to +0.3	V
Maximum Input Voltage	VIN	S1-4, M1-4, 32Hz, TEST, 10P, OSCIN, RES	VSS1-0.3 to +0.3	V
Maximum Ouptut Voltage	VOUT1 VOUT2	32Hz, CUP2, OSCOUT, ALM1, ALM2, LIGHT SEGOUT, COM1, COM2, COM3, CUP1	VSS1-0.3 to +0.3 VSS2-0.3 to +0.3	V
Operating Temperature	Topg		-10 to +65
Storage Temperature	Tstg		-30 to +125

Description

The IN5732 is a CMOS 4-bit single chip microcomputer that operate on low voltage, very low current and contain LCD drivers. They also contain a 4 bit parallel processing ALU, a program memory ROM, many LCD segment outputs, a prescaler, an oscillator. The IN5732 is especially suited for use in high-grade timepieces, time controllers, electronic calculators, LCD games with timepiece. The IN5732 is especially suited for use in audio equipment, copiers, facsimiles with LCD and sub CPU applications.