![](http://datasheet.mmic.net.cn/380000/-PD789167Y_datasheet_16744965/-PD789167Y_1.png)
The information contained in this document is being issued in advance of the production cycle for the
device. The parameters for the device may change before final production or NEC Corporation, at its own
discretion, may withdraw the device prior to its production.
Document No. U13216EJ1V0PM00 (1st edition)
Date Published March 1998 J CP(K)
Printed in Japan
1998
8-BIT SINGLE-CHIP MICROCONTROLLER
PRELIMINARY PRODUCT INFORMATION
MOS INTEGRATED CIRCUIT
μ
PD789166Y,789167Y,789176Y,789177Y
The
μ
PD789166Y,
μ
PD789167Y,
μ
PD789176Y, and
μ
PD789177Y are
μ
PD789167Y and
μ
PD789177Y
sub-series products of the 78K/0S series.
These microcontrollers feature an 8-bit CPU, I/O ports, timers, a serial interface, A/D converters, and interrupt
control circuits.
In addition, a flash memory product (
μ
PD78F9177Y) that can operate within the same voltage range as the
masked ROM models, and a range of related development tools are being developed.
The functions of these microcontrollers are described in the following user’s manuals. Refer to these
manuals when designing a system based on any of these microcontrollers.
μ
PD789177Y Sub-Series User’s Manual
78K/0S Series User’s Manual, Instruction: U11047E
: To be created
FEATURES
ROM and RAM sizes
Item
Program memory
Data memory
Product name
ROM
Internal high-speed RAM
μ
PD789166Y
16 Kbytes
512
×
8 bits
μ
PD789167Y
24 Kbytes
μ
PD789176Y
16 Kbytes
μ
PD789177Y
24 Kbytes
Variable minimum instruction execution time: From high-speed (0.4
μ
s: With the main system clock running at
5.0 MHz) to very low-speed (122
μ
s: With the subsystem clock running at 32.768 kHz)
Eight A/D converters with 8-bit resolution (for
μ
PD789166Y and
μ
PD789167Y)
Eight A/D converters with an 10-bit resolution (for
μ
PD789176Y and
μ
PD789177Y)
31 I/O ports
Two serial interface channels:
Switchable between three-wire serial I/O and UART modes
System management bus (SMB)
Six timers:
16-bit timer counter
Three 8-bit timer/event counters
Clock timer
Watchdog timer
16-bit multiplier
Power supply voltage: V
DD
= 1.8 to 5.5 V