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2.8 Outline of Function
Item
Internal
memory
Memory space
General registers
Minimum
instruction
execution
time
Instruction set
I/O ports
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A/D converter
Serial interface
Timer
Notes 1. 8, 16, 24, or 32 Kbytes can be selected by memory size switching register (IMS).
2. 512 or 1024 bytes can be selected by IMS.
CHAPTER 2 OUTLINE ( µ PD78014Y Subseries)
µ PD78011BY
Part Number
ROM
Mask ROM
8 Kbytes
High-speed RAM
512 bytes
Buffer RAM
32 bytes
64 Kbytes
8 bits × 8 registers × 4 banks
0.4 µ s/0.8 µ s/1.6 µ s/3.2 µ s/6.4 µ s (@ 10.0 MHz)
When main system
clock selected
122 µ s (@ 32.768 kHz)
When subsystem
clock selected
• 16-bit operation
• Multiply/divide (8 bits × 8 bits, 16 bits ÷ 8 bits)
• Bit manipulation (set, reset, test, and Boolean operation)
• BCD adjust, and other related operations
Total
• CMOS input
• CMOS I/O
• N-ch open-drain I/O : 4 inputs/outputs (15-V withstand, on-chip pull-up
• 8-bit resolution × 8 channels
• Low-voltage operation: AV
• 3-wire serial I/O, SBI, 2-wire serial I/O, I
• 3-wire serial I/O mode
• 16-bit timer/event counter
• 8-bit timer/event counter
• Watch timer
• Watchdog timer
µ PD78012BY
16 Kbytes
: 53 I/O ports
: 2 inputs
: 47 inputs/outputs (on-chip pull-up resistor can be
turn on/off by software.)
resistor with mask options in mask ROM versions only)
= 2.7 to 6.0 V
DD
(Maximum 32-byte on-chip automatic transmit/receive function): 1 channel
µ PD78013Y
µ PD78014Y
24 Kbytes
32 Kbytes
1024 bytes
2
C bus mode selectable: 1 channel
: 1 channel
: 2 channels
: 1 channel
: 1 channel
µ PD78P014Y
One-time
PROM/EPROM
Note 1
32 Kbytes
1024 bytes
Note 2
59
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