MC908JB8ADWE Freescale Semiconductor, MC908JB8ADWE Datasheet - Page 278

• 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

MC68HC08JT8
B.2 Introduction
B.3 MCU Block Diagram
B.4 Memory Map
Technical Data
278
Memory ($DC00–$FBFF)
User vectors ($FFF0–$FFFF)
Registers at $FE08 and $FF09
Bit 4 at CONFIG ($001F)
Monitor ROM
($FC00–$FDFF and $FE10–$FFDF)
Low voltage inhibit module
Universal Serial Bus (USB) module
On-chip 3.3V regulator
Operating voltage
Operating frequency
Table B-1. Summary of MC68HC08JT8 and MC68HC908JB8 Differences
This section introduces the MC68HC08JT8, a low-voltage ROM part
version to the MC68HC908JB8. The entire data book apply to this ROM
device, with exceptions outlined in this appendix.
Figure B-1
The MC68HC08JT8 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 B-2
shows the block diagram of the MC68HC08JT8.
shows the memory map of the MC68HC08JT8.
8,192 bytes ROM
16 bytes ROM
Not used;
locations are reserved
Not used;
bit is reserved.
$FC00–$FDFF: Not used.
$FE10–$FFDF: Used for
testing purposes only.
Not available (disabled)
Not available. User should set
the SUSPND bit to logic 1 to
reduce power consumption.
Not available (disabled)
2.0 to 3.6V
f
f
OPMAX
OPMAX
MC68HC08JT8
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
MC68HC08JT8
= 2.5MHz at 2V
= 3MHz at 3V
8,192 bytes FLASH
16 bytes FLASH
FLASH related registers.
$FE08 — FLCR
$FF09 — FLBPR
LVID: low-voltage inhibit
disable bit
Used for testing and FLASH
programming/erasing.
Available
Available
Available
4.0 to 5.5V
3MHz
MC68HC908JB8
Freescale Semiconductor