MC68HC908JB8JDW Freescale Semiconductor, MC68HC908JB8JDW Datasheet - Page 270

• Manufacturer Part Number: MC68HC908JB8JDW
• Description: IC MCU 8K FLASH 3MHZ 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JB8JDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: USB
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• 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: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

MC68HC08JB8
A.2 Introduction
A.3 MCU Block Diagram
A.4 Memory Map
Technical Data
270
Memory ($DC00–$FBFF)
User vectors ($FFF0–$FFFF)
Registers at $FE08 and $FF09
Monitor ROM
($FC00–$FDFF and $FE10–$FFDF)
Table A-1. Summary of MC68HC08JB8 and MC68HC908JB8 Differences
This section introduces the MC68HC08JB8, the ROM part equivalent to
the MC68HC908JB8. The entire data book apply to this ROM device,
with exceptions outlined in this appendix.
Figure A-1
The MC68HC08JB8 has 8,192 bytes of user ROM from $DC00 to
$FBFF, and 16 bytes of user ROM vectors from $FFF0 to $FFFF. On the
MC68HC908JB8, these memory locations are FLASH memory.
Figure A-2
shows the block diagram of the MC68HC08JB8.
shows the memory map of the MC68HC08JB8.
8,192 bytes ROM
16 bytes ROM
Not used;
locations are reserved.
$FC00–$FDFF: Not used.
$FE10–$FFDF: Used for
testing purposes only.
MC68HC08JB8
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
MC68HC08JB8
8,192 bytes FLASH
16 bytes FLASH
FLASH related registers.
$FE08 — FLCR
$FF09 — FLBPR
Used for testing and FLASH
programming/erasing.
MC68HC908JB8
Freescale Semiconductor