參數(shù)資料
型號: MC68HC05JB4DWR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 35/134頁
文件大?。?/td> 1305K
代理商: MC68HC05JB4DWR2
February 24, 1999
GENERAL RELEASE SPECIFICATION
MC68HC05JB4
GENERAL DESCRIPTION
MOTOROLA
REV 2
1-1
SECTION 1
GENERAL DESCRIPTION
The MC68HC05JB4 is a member of the low-cost, high-performance M68HC05
Family of 8-bit microcontroller units (MCUs). The M68HC05 Family is based on
the customer-specied integrated circuit (CSIC) design strategy. All MCUs in the
family use the popular M68HC05 central processing unit (CPU) and are available
with a variety of subsystems, memory sizes and types, and package types.
The MC68HC05JB4 is specically designed to be used in applications where a
low speed (1.5Mbps) Universal Serial Bus (USB) interface is required.
1.1
FEATURES
Industry standard M68HC05 CPU core
Memory-mapped input/output (I/O) registers
3584 Bytes of user ROM
176 Bytes of user RAM (includes 64 byte stack)
19 Bidirectional I/O pins with the following added features:
– PA[0:7]:
Software enable Internal pull-up resistor (50k
typical)
– PA[0:3]:
Built-in schmitt triggered input level
Maskable as extra input sources for IRQ interrupt
Maskable Negative-Edge Only or Negative-Edge
and Low-Level Interrupt Capability
– PA4:
IRQ2 with built-in schmitt triggered input
– PA[5:7]:
10mA Sink output drive
– PA[6:7]:
Maskable 10mA/25mA sink output drive
Software enable Slow Edge Pull Down Devices
– PB[0:4]:
Software enable Internal pull-up resistor (50k
typical)
Software enable Slow Edge Pull Down Devices
– PB[0]:
ICAP1 with built-in schmitt triggered input
– PB[3:4]:
AD[4:5]
– PC[0:3]:
AD[0:3]
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