M306H2MC-XXXFP Datasheet, PDF (206/210 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

MITSUBISHI MICROCOMPUTERS
M306H2MC-XXXFP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
with DATA ACQUISITION CONTROLLER
7. DIFFERENCES BETWEEN M306H2MC-XXXFP AND M306H2FCFP
Item
Processor mode
ROM type
M1/M2 pin function
CNVSS pin function
M306H2MC-XXXFP
M306H2FCFP
Single-chip mode
Memory extension mode
Microprocessor mode(Note 1)
Single-chip mode
Memory expansion mode
Mask ROM
Flash memory
M1: Test input
(Connect it to the VSS pin.)
M1: Chip mode setting input (Note 2)
M2: Test input
(Connect it to the VSS pin.)
M2: Flash memory rewriting power supply input
This pin switches between processor modes. Normally connect it to the VSS pin.(Note 2)
BYTE pin function
This pin switches between external data buses. This pin switches between external data buses.
(Note 3)
Notes 1: Microprocessor mode can be used only on M306H2MC-XXXFP.
2: These pins are used to control flash memory mode. For more information, consult M306H2FCFP
flash memory specifications.
3 :When use flash memory mode (parallel I/O, standard serial I/O and CPU rewriting mode), connect
with VSS pin.
4 :Since it differs in part about an electrical characteristics, check the specification of M306H2MC-XXXFP
and M306H2FCFP.
5 :There are differences in electric characteristics, operation margin, noise immunity, and noise radiation
between Mask ROM and Flash Memory version MCUs due to the difference in the manufacturing
processes. When manufacturing an application system with the Flash Memory version and then
switching to use of the Mask ROM version, please perform sufficient evaluations for the commercial
samples of the Mask ROM version.
6: Before using the M306H2FCFP's standard serial input/output mode (boot mode) during, for example,
application product development or mass-production startup, always refer to the pin connection
diagrams and typical application circuits in Figures 7.1 through 7.3. Be careful at the time of mask ROM
development.
Rev. 1.0
205