Appendix A Differences Between Pd78078, 78075B Subseries, And Pd78070A - NEC PD78076 User Manual

APPENDIX A DIFFERENCES BETWEEN PD78078, 78075B SUBSERIES, AND PD78070A

The major differences between the PD78078, 78075B Subseries, and PD78070A are shown in Table A-1.
Table A-1. Major Differences between PD78078, 78075B Subseries, and PD78070A
Part Number
Item
Anti-EMI noise measure
Product equipped with I 2 C bus
Supply voltage
Internal ROM size
Internal expansion RAM size
I/O port Total
CMOS input
CMOS I/O
N-ch open-drain I/O
Pins with Note 1 Pin with pull-up resistor
additional
Medium-voltage pin
functions
LED direct drive output
AV pin
DD
External Bus mode
expansion
function
Memory expansion mode
ROM correction function
Package
Electrical specifications
Recommended soldering conditions
Notes 1. The number of I/O ports includes the pins with additional functions.
2. Not available in the Y subseries
3. PROM version only
4. Under development
PD78078 Subseries
Not provided Provided
Available Not available
V = 1.8 to 5.5 V
DD
PD78076 : 48 Kbytes
PD78078, 78P078
: 60 Kbytes
1024 bytes None
88
2
78
8
86 (78 for PD78P078)
8
16 Not provided
Provided Not provided
(AV
Selectable from multiplexed bus mode or separate
bus mode
Selectable from four types of memory expansion modes
Provided Not provided
• 100-pin plastic QFP • 100-pin plastic QFP
(Fine pitch) (14 x 14 mm) Note 2
• 100-pin plastic LQFP • 100-pin plastic LQFP
(Fine pitch) (14 x 14 mm)
• 100-pin plastic QFP • 100-pin plastic QFP
(14 x 20 mm)
• 100-pin ceramic WQFN Note 3
Refer to the data sheet of individual product.
PD78075B Subseries
Not provided
Available
V
DD
PD78074B : 32 Kbytes Not provided
PD78075B : 40 Kbytes
61
51
51
Not provided
4
Provided
pin functions alternately)
REF0
Only separate bus mode
Only full-address mode
• 100-pin plastic QFP
(Fine pitch) (14 x 14 mm) (Fine pitch) (14 x 14 mm)
• 100-pin plastic LQFP
(Fine pitch) (14 x 14 mm) (Fine pitch) (14 x 14 mm)
• 100-pin plastic QFP
(14 x 20 mm) (14 x 20 mm)
PD78070A
= 2.7 to 5.5 V
Note 4
597