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68HC05JB3 Datasheet(PDF) 13 Page - Freescale Semiconductor, Inc |
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68HC05JB3 Datasheet(HTML) 13 Page - Freescale Semiconductor, Inc |
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13 / 134 page  November 5, 1998 GENERAL RELEASE SPECIFICATION MC68HC05JB3 GENERAL DESCRIPTION MOTOROLA REV 1 1-1 SECTION 1 GENERAL DESCRIPTION The MC68HC05JB3 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-specified integrated circuit 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 MC68HC05JB3 is specifically 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 • 2560 Bytes of user ROM • 144 Bytes of user RAM (includes 64 byte stack) • Fully compliant Low Speed USB with 3 Endpoints: – 1 Control Endpoint (2 ×8-byte buffer) – 2 Interrupt Endpoints (1 ×8-byte buffer shared) • 3.3V dc output for USB pull-up resistors • 19 Bidirectional I/O pins with the following features: – 17 I/Os have software programmable pull-down capability – 2 open-drain I/Os have software programmable pull-up, 25mA current sink capability – 4 I/Os with external interrupt capability – 8 I/Os (in 4 pairs) with programmable optical interface • Multi-Function Timer (MFT) • 16-bit Timer with 1 input capture and 1 output compare • Low Voltage Reset (LVR) • Computer Operating Properly (COP) Watchdog Reset • Illegal Address Reset Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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