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UPD784908 Datasheet

  • UPD784908

  • 16-BIT SINGLE-CHIP MICROCONTROLLER

  • 643.37KB

  • 98頁(yè)

  • NEC   NEC

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DATA SHEET
碌
PD784907, 784908
16-BIT SINGLE-CHIP MICROCONTROLLER
MOS INTEGRATED CIRCUIT
The
碌
PD784907 and
碌
PD784908 are products of the
碌
PD784908 Subseries in the 78K/IV Series. These products
contain various peripheral hardware such as IEBus
TM
controller, ROM, RAM, I/O ports, 8-bit resolution A/D, timers,
serial interface, and interrupt functions, as well as a high-speed, high-performance CPU.
In addition, the
碌
PD78P4908 (one-time PROM product), which is used to evaluate the functions of mask ROM
versions, and development tools are also available.
Detailed function descriptions are provided in the following user's manuals. Be sure to read them before
designing.
碌
PD784908 Subseries User's Manual Hardware : U11787E
78K/IV Series User's Manual Instruction
: U10905E
FEATURES
鈥?/div>
78K/IV Series
鈥?/div>
Minimum instruction execution time: 320 ns (at 6.29 MHz)
160 ns (at 12.58 MHz)
鈥?/div>
Watchdog timer: 1 channel
鈥?/div>
Clock output function
Selectable from f
CLK
, f
CLK
/2, f
CLK
/4, f
CLK
/8, or f
CLK
/16
鈥?/div>
Number of I/O ports: 80
鈥?/div>
Timer/counters: 16-bit timer/counter
脳
3 units
16-bit timer
脳
1 unit
鈥?/div>
Serial interface: 4 channels
UART/IOE (3-wire serial I/O): 2 channels
CSI (3-wire serial I/O):
2 channels
鈥?/div>
A/D converter: 8-bit resolution
脳
8 channels
鈥?/div>
On-chip IEBus controller
鈥?/div>
Watch timer
鈥?/div>
Low-power consumption
鈥?/div>
Supply voltage: V
DD
= 4.0 to 5.5 V
(Main clock: f
XX
= 12.58 MHz,
internal system clock = f
XX
,
f
CYK
= 79 ns)
V
DD
= 3.5 to 5.5 V
(Other than above, f
CYK
= 159 ns)
鈥?/div>
PWM outputs: 2
鈥?/div>
Standby function
HALT/STOP/IDLE mode
鈥?/div>
Clock frequency division function
APPLICATIONS
Car audios, etc.
This document describes the
碌
PD784908 unless otherwise specified.
The information in this document is subject to change without notice.
Document No. U11680EJ2V0DS00 (2nd edition)
Date Published February 1999 N CP(K)
Printed in Japan
The mark
shows major revised points.
漏
1996

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