MC68HC908JB8 Datasheet, PDF (281/286 Pages) Motorola, Inc – MICROCONTROLLERS

MC68HC08JT8
B.5 Power Supply Pins
The MC68HC08JT8 is design for low voltage operation. Connect V_DD
and V_REG for normal operation.
The V_REG voltage regulator is disabled on the MC68HC08JT8.
MCU
V_DD
V_REG
V_SS
C_BYPASS 0.1 µF
+
C_BULK 10 µF
V_DD
NOTE: Values shown are typical values.
Figure B-3. Power Supply Bypassing
B.6 Reserved Register Bit
Bit 4 of the configuration register ($001F) is a reserved bit on the
MC68HC08JT8. The bit will always read as zero.
On the MC68HC908JB8, bit 4 of the configuration register is the low-
voltage inhibit disable bit, LVID.
B.7 Reserved Registers
The two registers at $FE08 and $FE09 are reserved locations on the
MC68HC08JT8.
On the MC68HC908JB8, these two locations are the FLASH control
register and the FLASH block protect register respectively.
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
MC68HC08JT8
Technical Data
281