UPD78F9177 NEC, UPD78F9177 Datasheet - Page 48

• Manufacturer Part Number: UPD78F9177
• Description: 8-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

APPENDIX A. DIFFERENCES BETWEEN PD78F9177, 78F9177Y, AND MASK ROM VERSIONS
between the PD78F9177, 78F9177Y and the Mask ROM versions are shown in Table A-1.
48
Item
Internal
memory
V
Pull-up resistor
A/D resolution
Electrical specifications
PP
The PD78F9177 and PD78F9177Y are flash memory version of the Mask ROM version. The differences
pin
Cautions 1. There are differences in the amount of noise immunity and noise radiation between the
ROM
High-speed RAM
Table A-1. Differences between PD78F9177, 78F9177Y and Mask ROM Versions
2. When the PD78F9177, a flash memory counterpart of the PD789166 or PD789167, is
Product Name
flash memory and mask ROM versions. When pre-producing an application set with the
flash memory version and then mass producing it with the mask ROM versions, be sure
to conduct sufficient evaluations on the commercial samples (CS) (not engineering
sample, ES) of the mask ROM version.
used, however, ADCR0 can be manipulated with an 8-bit memory manipulation
instruction. In this case, use an object file assembled with the PD789166 or PD789167.
The same is also true for the PD78F9177Y, a flash memory counterpart of the
manipulated with an 8-bit memory manipulation instruction. In this case, use an object
file assembled with the PD789166Y or PD789167Y.
PD789166Y or PD789167Y. When the PD78F9177Y is used, ADCR0 can be
24 KB
512 bytes
Provided
17 (Software control)
10 bits
See the relevant data sheet
Flash Memory Version
PD78F9177, 78F9177Y
Data Sheet U14022EJ1V0DS00
789176, 789176Y
16 KB
Not provided
21 (Software control: 17, mask option specification: 4)
8 bits ( PD789166, 789167, 789166Y, 789167Y)
10 bits ( PD789176, 789177, 789176Y, 789177Y)
PD789166, 789166Y
Mask ROM Version
PD78F9177, 78F9177Y
789177, 789177Y
24 KB
PD789167, 789167Y