參數(shù)資料
型號： MC68HC705SB7
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝： SOIC-28
文件頁數(shù)： 46/170頁
文件大小： 2161K
代理商： MC68HC705SB7
GENERAL RELEASE SPECIFICATION
August 27, 1998
MOTOROLA
GENERAL DESCRIPTION
MC68HC05SB7
1-2
REV 2.1
4 channels 10-bit PWM running at a xed clock rate
SM-Bus serial interface compatible with I2C Bus
Slow ramp up power supply reset capability via LVR
Selectable sensitivity on IRQ interrupt (Edge- and Level-Sensitive or
Edge-Only)
SM-Bus, current detect, 16-bit timer, analog subsystem and core timer
interrupts
Internal 100k
pull-up resistor on RESET
Low Voltage Reset (LVR)
Illegal Address Reset
Computer Operating Properly (COP) Watchdog system
Available in 28-pin SSOP
NOTE
A bar over a signal name indicates an active low signal. For example, RESET is
active high and RESET is active low. Any reference to voltage, current, or
frequency specied in the following sections will refer to the nominal values. The
exact values and their tolerance or limits are specied in the Electrical
Specications section.
1.2
MASK OPTION
A single mask option is available on the MC68HC05SB7.
External oscillator on pins OSC1 and OSC2 (EPO):
[enabled or disabled]
1.3
PEPROM FACTORY PREPROGRAMMED OPTIONS
The MC68HC05SB7 is available with a factory preprogrammed PEPROM contain-
ing any of the following measured parameters:
The internal VCO minimum frequency: programmed or left blank
The internal VCO maximum frequency: programmed or left blank
The internal bandgap reference voltage: programmed or left blank
The internal temperature sensor voltage at 80
°C: programmed or left
blank
1.4
MCU STRUCTURE
The block diagram of the MC68HC05SB7 is shown in Figure 1-1.
SM-Bus is an Intel bus standard.
I2C Bus is a Philips bus standard.
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