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UPD789860 Datasheet

  • UPD789860

  • UPD789860.789861 Data Sheet | Data Sheet[08/2001]

  • 56頁

  • ETC

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DATA SHEET
碌
PD789860, 789861
8-BIT SINGLE-CHIP MICROCONTROLLERS
MOS INTEGRATED CIRCUIT
The
碌
PD789860 and
碌
PD789861 are products of the
碌
PD789860, 789861 Subseries in the 78K/0S Series.
In addition to an 8-bit CPU, they have on-chip hardware for keyless entry, including EEPROM , a key return
function, and a timer with a carrier generator that can easily output waveforms for infrared remote control. The
TM
碌
PD78E9860 and
碌
PD78E9861, EEPROM products that can operate using the same power supply voltage as mask
ROM products, and various development tools also are under development.
Detailed function descriptions are provided in the following user's manuals. Be sure to read them before
designing.
碌
PD789860, 789861 Subseries User's Manual:
78K/0S Series User's Manual Instructions:
U14826E
U11047E
FEATURES
Internal ROM: 4 KB
On-chip EEPROM needed for reading/writing by program in RAM area: 32 bytes
System clock oscillator
鈥?/div>
碌
PD789860: Crystal/ceramic oscillator
鈥?/div>
碌
PD789861: RC oscillator (externally attached resistor and capacitor)
Minimum instruction execution time
鈥?/div>
碌
PD789860: 0.4
碌
s/1.6
碌
s (@ f
X
= 5.0 MHz operation)
鈥?/div>
碌
PD789861: 2.0
碌
s/8.0
碌
s (@ f
CC
= 1.0 MHz operation)
I/O ports: 14
Timer: 3 channels
鈥?8-bit timer:
2 channels
鈥?Watchdog timer: 1 channel
On-chip power-on-clear circuit
On-chip bit sequential buffer
Power supply voltage: V
DD
= 1.8 to 3.6 V
APPLICATIONS
Keyless entry and other automotive electrical equipment
In this Data Sheet, the oscillation frequency of a crystal/ceramic oscillator (
碌
PD789860) is described as f
X
and the
oscillation frequency of an RC oscillator (
碌
PD789861) is described as f
CC
.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. U13917EJ1V1DS00 (1st edition)
Date Published August 2001 N CP(K)
The mark
shows major revised points.
漏
1999, 2000

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