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Chapter 1 General
1

1.1 FEATURES

°78K/II series
°Multiplexed internal bus (faster execution of instructions)
Minimum instruction cycle (operating at 12 MHz): 333 ns (
µ
PD78212,
µ
PD78214, and
µ
PD78P214),
or 500 ns (
µ
PD78213)
°Instruction set suitable for control applications
°Data memory expansion function (memory space of 1MB with two bank designation pointers)
°Interrupt controller (with two priority levels)
Vectored interrupt handling
Macro service
°Internal memory
• ROM
Masked ROM : 16KB (
µ
PD78214), 8KB (
µ
PD78212), or none (
µ
PD78213)
PROM : 16KB (
µ
PD78P214)
RAM: 512 bytes (
µ
PD78213,
µ
PD78214, and
µ
PD78P214), or 384 bytes (
µ
PD78212)
°Number of I/O pins: 54 (
µ
PD78212,
µ
PD78214, and
µ
PD78P214), or 36 (
µ
PD78213)
Number of pins with software-programmable pull-up resistors: 16 (
µ
PD78213 only),
or 34 (other than
µ
PD78213)
Number of LED direct-drive pins: 16 (
µ
PD78212,
µ
PD78214, and
µ
PD78P214)
Number of transistor direct-drive pins: 8
°Serial interface
UART (baud rate generator included)
Synchronous serial interface (three-wire serial I/O, serial bus interface)
°Real-time output ports (two stepper motors can be independently controlled by combining the output ports with
an eight-bit timer/counter.)
°Eight-bit A/D converter (analog eight-bit input)
°Highly functional timer/counter units
16-bit unit
Three eight-bit units