MC908JB8ADWE Freescale Semiconductor, MC908JB8ADWE Datasheet - Page 19

• 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

Technical Data — MC68HC908JB8•MC68HC08JB8•MC68HC08JT8
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
Figure
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MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
44-Pin QFP Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . 32
28-pin SOIC Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 33
20-pin PDIP and SOIC Pin Assignments . . . . . . . . . . . . . . . . . 33
Regulator Supply Capacitor Configuration . . . . . . . . . . . . . . . . 35
Control, Status, and Data Registers . . . . . . . . . . . . . . . . . . . . .42
FLASH Memory Register Summary . . . . . . . . . . . . . . . . . . . . .54
FLASH Control Register (FLCR) . . . . . . . . . . . . . . . . . . . . . . . 55
FLASH Programming Flowchart . . . . . . . . . . . . . . . . . . . . . . . . 59
FLASH Block Protect Register (FLBPR). . . . . . . . . . . . . . . . . . 60
FLASH Block Protect Start Address . . . . . . . . . . . . . . . . . . . . .60
Configuration Register (CONFIG). . . . . . . . . . . . . . . . . . . . . . . 66
CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Accumulator (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Index Register (H:X) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Stack Pointer (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Condition Code Register (CCR) . . . . . . . . . . . . . . . . . . . . . . . . 74
SIM Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
SIM Clock Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
Power Supply Bypassing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Program Counter (PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Oscillator External Connections . . . . . . . . . . . . . . . . . . . . . . . .90
SIM I/O Register Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . .96
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