HD64F3437TF16 Datasheet, PDF (746/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

Continued from the preceding page.
ROM code name
LSI number
(Hitachi entry)
4 I²C Bus Option
I²C bus used
I²C bus not used
Notes: 1. The “I²C bus used” option includes all cases where data transfer is performed via the
SCL and SDA pins using the on-chip I²C bus interface function (hardware module). If
the I²C bus interface function (hardware module) is used, various bus interfaces with
different bus specifications and names are also included in “I²C bus used”. The case in
which only the bus drive function of pins PA7 to PA4 in port A is used is not included.
2. When “I²C bus not used” is selected, values cannot be set in registers relating to the I²C
bus interface (ICCR, ICSR, ICDR, ICMR). These register always read H'FF. With
emulators, and ZTAT and F-ZTAT versions, the “I²C bus used” option is selected. If the
“I²C bus not used” option is selected, it is essential to ensure that I²C bus interface
related registers are not accessed.
For the Microcomputer Family item in 1. Basic Specifications in the Single-Chip
Microcomputer Ordering Specifications Sheet*, please specify the appropriate item from
the table below according to the combination of items 1 and 4 above. If the “I²C bus used”
option is selected, please also specify this in Special Specifications (Product Specifications,
Mark Specifications, etc.) in 1. Basic Specifications.
* Please contact the relevant sales department for information on the Single-Chip
Microcomputer Ordering Specifications Sheet.
ROM Size
32-kbyte
48-kbyte
60-kbyte
I²C bus used
HD6433434W
HD6433436W
HD6433437W
I²C
I²C bus not used
HD6433434
HD6433436
HD6433437
717