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| 型号： | EM6640SO18A |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-SOIC |
| 中文描述： | 微控制器 |
| 文件页数： | 12/62页 |
| 文件大小： | 620K |
| 代理商： | EM6640SO18A |
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EM6640
03/02 REV. C/446
Copyright
2002, EM Microelectronic-Marin SA
2
www.emmicroelectronic.com
EM6640 at a glance
Power Supply
- Low voltage, low power architecture
including internal voltage regulator.
- 1.9V ... 5.5V battery voltage.
- 600 kHz RC oscillator.
- 42A typical in active mode @ 3V, 25C
°.
- 8A typical in standby mode @ 3V, 25C
°.
- 0.3A typical in sleep mode @ 3V, 25C
°.
RAM
- 80 x 4 bit, directly addressable.
ROM
- 1280 x 16 bit metal mask programmable.
EEPROM
- 32 x 8 bit, indirectly addressable (6 bits used to
adjust the oscillator frequency).
- Interrupt request at the end of writing operation.
- 60A typical during read mode @ 3V, 25C
°.
- 45A typical during erase/write mode @ 3V, 25C
°
CPU
- 4 bits RISC architecture.
- 2 clock cycles per instruction.
- 72 basics instructions.
Main Operating Modes and Resets
- Active mode (CPU is running).
- Standby mode (CPU in halt).
- Sleep mode (No clock, reset state).
- Initial reset on power on (POR).
- Watchdog timer (time out) reset.
- Oscillation detection watchdog reset.
- Reset with input combination.
4 Bits Input Port A
- Direct input read.
- Reset with input combination (register selectable).
- Debounced or direct input (register selectable).
- Interrupt request on input’s rising or falling
edge (register selectable).
- Pull-up, pull-down or none (register selectable).
- Software test variables for conditional jumps.
- PA[0] and PA[3] are input for the event counter.
4 Bits Input/Output Port B
- Input or Output port bitwise.
- Direct input read.
- CMOS or N-channel open drain outputs.
- Pull-up selectable in N-channel open drain mode.
- Pull-down or pull-up selectable by register.
- Selectable pulse width modulation (PWM).
- PWM output on PB[3].
- Output frequencies 600kHz, 37.5kHz, 2.3kHz.
4 Bits Input/Output Port C
- Input or output port bitwise.
- Direct input read.
- CMOS or N-channel open drain outputs.
- Pull-up selectable in N-channel open drain mode.
- Pull-down or pull-up selectable by register.
- Serial Write Buffer clock and data output.
Oscillator
- RC Oscillator at f=600kHz
±1% typ (-30°C...40°C).
- Absolute frequency adjustable with 6 bits EEPROM.
- No external components are necessary.
Serial Write Buffer (SWB)
- Max. 256 bits long clocked with 150kHz; 75kHz
9.4kHz; 2,3kHz. External clock capability in
automatic mode, max: 1.5MHz.
- Automatic send mode: number of clocks of the last
nibble selectable by register and last data level
latched. External clock division capability by 1/1, 1/4,
1/88 and 1/352.
- Interactive send mode: interrupt request when buffer
is empty.
- Data sent at VDD or VregLogic levels selectable by
mask option.
Prescaler
- 19 stages system clock divider down to 1Hz.
- 3 interrupts requests: 9.4kHz; 586Hz and 1Hz.
- Prescaler reset.
Supply voltage Level Detector
- 2 levels software selectable (2,2V or 2,5V).
- Busy flag during measurement.
- Interrupt request when measurement is ready.
10-Bit Universal Counter
- 10, 8, 6, 4 bit up/down counting.
- 8 different input clocks.
- Event counting with PA[0] and PA[3] as input clocks.
- Full 10 bits or limited (8, 6, 4 bits) compare function.
- 2 interrupt requests (on compare and on 0).
- Pulse width modulation (PWM) output on PB[3].
Sleep Counter Reset (SCR)
- Wake up automatically the EM6640 from sleep.
- 8 timings selectable by register.
- Inhibit SCR by register.
Watchdogs
- Oscillation detection circuit.
- Digital watchdog timer reset.
Interrupt Controller
- 4 external interrupt sources from PortA.
- 5 internal interrupt sources: Prescaler (3),
Timer (2), SVLD (1), EEPROM (1), SWB (1)
NB: All frequencies written in this document are related to a typical system clock of 600 kHz.
相关PDF资料 |
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| EM6640SO18B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 10-DFN |
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相关代理商/技术参数 |
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|---|---|
| EM6640SO18B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6640TP16A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6640TP16B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6640WP11 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Low Power Microcontroller with EEPROM AND RC Oscillator |
| EM6640WP27 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Low Power Microcontroller with EEPROM AND RC Oscillator |
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