EM6605 EM Microelectronic, EM6605 Datasheet - Page 2

• Manufacturer Part Number: EM6605
• Description: 4 bit Microcontroller
• Manufacturer: EM Microelectronic

EM6605 at a glance
- Low Voltage, low power architecture
- 1.8V ... 5.5 V battery voltage
- 4.0
- 2.5
- 0.3
@ 1.8V, 32kHz, 25 °C
- RC oscillator from 30-300kHz
- 96 x 4 bit, direct addressable
- 2048 x 16 bit metal mask programmable
- 4 bit RISC architecture
- 2 clock cycles per instruction
- 72 basic instructions
- Active mode
- Standby mode
- Sleep mode
- Initial reset on Power-On (POR)
- External reset pin
- Watchdog timer (time-out) reset
- Oscillation detection watchdog reset
- Reset with input combination on PortA
- 3 software selectable levels defined by user
- Busy flag during measure
- Active only on request during measurement to
reduce power consumption
- Direct input read
- Debounced or direct input selectable (reg.)
- Interrupt request on input’s rising or falling edge,
- Pull-down or none, selectable by met. mask
- Software test variables for conditional jumps
- PA3 input for the event counter
- Reset with input combination on PortA
- separate input or output selection by register
- Pull-up, Pull-down or none, selectable by metal
- Buzzer output on PB0
NOTE: All frequencies on this page are related to 32.7kHz typical system clock
© EM Microelectronic-Marin SA, 02/99, Rev. B/243
2
(metal option)
(metal option)
including internal voltage regulator
between 1.9V and 4.5V)
selectable by register.
mask if used as Input
Power Supply
RAM
ROM
CPU
Main Operating Modes and Resets
Supply Voltage Level Detector
4-Bit Input PortA
4-Bit Input/Output PortB
(CPU is running)
(CPU in Halt)
(No clock, Reset State)
- Input or Output port as a whole port
- Debounced or direct input selectable (reg.)
- Interrupt request on input’s rising or falling edge,
- Pull-up, pull-down or none, selectable by
- CMOS or N-channel open drain mode
- Input or Output port as a whole port
- Pull-up, Pull-down or none, selectable by metal
- CMOS or N-channel open drain mode
- Serial Write Buffer clock and data output
- max. 256 bits long clocked with
- automatic send mode
- interactive send mode : interrupt request
- RC oscillator with an external resistor for
- Production tolerance 20%
- Temperature toll.
- if used output on PB0
- 3 tone buzzer - 1kHz, 2kHz, 2.66kHz @32kHz
-
- 3 interrupt requests : 1Hz/8Hz/32Hz
- Prescaler reset ck[14]-ck[1] (from 8kHz-1Hz)
-
- 6 different clocks from prescaler
- or event counter from the PA3 input
- parallel load
- interrupt request when comes to 00 hex.
-
- 3 internal interrupt sources, prescaler, timer and
- each interrupt request is individually maskable
- interrupt request flag is cleared automatically on
ck[15]/ck[14]/ck[12]/ck[11] = 16/8/2/1kHz
metal mask if used as input
when buffer is empty
frequency adjustment in range from
30kHz to 300kHz
15 stage system clock divider down to 1 Hz
4 external interrupt sources from PortA
8-bit auto-reload count-down timer
selectable by register.
mask if used as Input
Serial Write Buffer
register read
4-Bit Input/Output PortC
4-Bit Input/Output PortD
Serial (output) Write Buffer
RCoscillator
Buzzer Output
Prescaler
8-bit Timer / Event Counter
Interrupt Controller
5%, -20 C<T<70 C
EM6605