mc68hc908jb8 Freescale Semiconductor, Inc, mc68hc908jb8 Datasheet - Page 28

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mc68hc908jb8

Manufacturer Part Number
mc68hc908jb8
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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General Description
1.3 Features
Technical Data
28
Features of the MC68HC908JB8 include:
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or
copying the FLASH difficult for unauthorized users.
High-performance M68HC08 architecture
Fully upward-compatible object code with M6805, M146805, and
M68HC05 Families
3-MHz internal bus frequency
8,192 bytes of on-chip FLASH memory
256 bytes of on-chip random-access memory (RAM)
FLASH program memory security
On-chip programming firmware for use with host PC computer
Up to 37 general-purpose 3.3V input/output (I/O) pins, including:
– 13 or 10 shared-function I/O pins, depending on package
– 24, 8, or 2 dedicated I/O pins, depending on package
– 8 keyboard interrupts on port A, on all packages
– 10mA sink capability for normal LED on 4 pins
– 25mA sink capability for infrared LED on 2 pins
– 10mA sink capability for PS/2 connection on 2 pins
16-bit, 2-channel timer interface module (TIM) with selectable
input capture, output compare, PWM capability on each channel,
and external clock input option (TCLK)
Full Universal Serial Bus Specification 1.1 low-speed functions:
– 1.5 Mbps data rate
– On-chip 3.3V regulator
– Endpoint 0 with 8-byte transmit buffer and 8-byte receive buffer
– Endpoint 1 with 8-byte transmit buffer
– Endpoint 2 with 8-byte transmit buffer and 8-byte receive buffer
(with USB module disabled)
General Description
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
1
Freescale Semiconductor

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