EM73362 Datasheet, PDF (1/40 Pages) ELAN Microelectronics Corp – 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

EM73362
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
GENERAL DESCRIPTION
EM73362 is an advanced single chip CMOS 4-bit micro-controller. It contains 3K-byte ROM, 52-nibble RAM,
4-bit ALU, 13-level subroutine nesting, 22-stage time base, one 12-bit timer for the kernal function and one high
speed counter. EM73362 also contains 5 interrupt sources, 1 input port, 4 bidirection ports, built-in watch-
dog-timer and LCD driver (27x3 to 15x3).
Except low-power consumption and high speed, EM73362 has the STOP mode and IDLE mode operation for
power saving function.
FEATURES
• Operation voltage
: 1.2V to 1.8V.(clock frequency : 32 K Hz)
• Clock source
: Single clock system for crystal, connect a external resistor or external clock
source, available by mask option.
• Instruction set
: 109 powerful instructions.
• Instruction cycle time : Up to 122µs for 32 K Hz.
• ROM capacity
: 3072 x 8 bits.
• RAM capacity
: 52 x 4 bits.
• Input port
: 1 port (4-bit).
• Bidirection port
: 4 ports (P4, P6, P7, P8) are available by mask option. P4 is a high current port.
(P4.0 and TONE available by mask option. P4.1~P4.3 are shared with the input/
output of RFO.) P6, P7 and P8 are shared with SEG15-SEG26.
• 12-bit timer
: One 12-bit timer is programmable for timer.
• High speed counter
: The high speed counter includes one 8-bit high speed counter, one 12-bit general
counter and a resistor frequency oscillator. It has resistor to frequency oscillation
mode, melody mode and auto load timer mode.
• Built-in time base counter: 22 stages.
• Subrountine nesting
: Up to 13 levels.
• Interrupt
: External interrupt . . . . . . 2 input interrupt sources.
Internal interrupt . . . . . . 2 timer overflow interrupts,
1 time base interrupt.
• LCD driver
: 27x3 to 15x3 dots available by mask option. 1/3, 1/2 and static three kinds of duty
(1/2 bias) selectable. The programming method of LCD driver is RAM mapping.
• Built-in watch-dog-timer is available by mask option.
• Built-in low battery detector.
• Power saving function : STOP mode and IDLE mode.
• Package type
: Chip form 49 pins.
* This specification are subject to be changed without notice.
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