MC908JB8ADWE Freescale Semiconductor, MC908JB8ADWE Datasheet - Page 28

• Manufacturer Part Number: MC908JB8ADWE
• Description: IC MCU 3MHZ 8K FLASH 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908JB8ADWE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: USB
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: HC08JB
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: USB
• Maximum Clock Frequency: 3 MHz
• Number Of Programmable I/os: 37
• Number Of Timers: 2
• Operating Supply Voltage: 5.25 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, DEMO908GZ60E, M68EML08GZE, KITUSBSPIDGLEVME, KITUSBSPIEVME, KIT33810EKEVME
• Minimum Operating Temperature: 0 C
• Controller Family/series: HC08
• No. Of I/o's: 21
• Ram Memory Size: 256Byte
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Embedded Interface Type: SCI, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

General Description
1.3 Features
Technical Data
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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.
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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
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Freescale Semiconductor