NJU3502L データシートの表示（PDF） - Japan Radio Corporation
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NJU3502L Datasheet PDF : 42 Pages
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NJU3502
PRELIMINARY
4-BIT SINGLE CHIP MICRO CONTROLLER
s GENERAL DESCRIPTION
The NJU3502 is the C-MOS 4-bit Single Chip Micro
Controller consisting of the 4-bit CPU Core, Input / Output
Selectable I/O ports, Program ROM, Data RAM, Timer, 8-
bit Serial Interface, and Oscillator Circuit (CR or Ceramic
or X'tal). It realizes the control for home appliances or
toys by only few external components.
The NJU3502 is suitable for battery operated appliances
because of low operating current, wide operating voltage
range, and STANDBY function(HALT mode).
s PACKAGE OUTLINE
NJU3502L
NJU3502M
s FEATURES
s PIN CONFIGURATION
q Internal Program ROM 1024 X 8 bits
PC2
q Internal Data RAM
64 X 4 bits
q Input / Output Port
17 lines(MAX)
PC3
10 lines Input / Output direction of each bit is
PD0
selected by the mask option.
4 lines Input / Output direction of 4-bit lines group PD1
can be changed by the program.
PA0
Additional functions by the mask option.
External Interrupt Terminal : EXTI/PE0
PA1
Serial Interface Terminals
PA2
: SDO/PF0, SDI(O)/PF1
q High Output-Current terminal (4 lines)
PA3
N-Channel FET Open Drain Type (IOL)
TEST
q Instruction Set
15mA at VDD=5V
59 instructions
OSC1
q Subroutine Nesting
8 levels
OSC2
q Pulse Edge Detector
The rising or falling edge of a pulse is selected by VSS
the mask option.
q Instruction Executing Time
q Operating Frequency Range
q Internal Oscillator
6/fOSC sec
30kHz − 4MHz
CR, or Ceramic, or X'tal oscillation and External clock input
q STANDBY function (HALT mode)
q Wide operating voltage range 2.4V − 5.5V
q 8-bit Serial Input / Output port
q Timer (8-bit re-load type timer)
q Interrupt factor
3(external, timer, serial Input / Output)
q C-MOS technology
q Package outline
SDIP / DMP24
1
24
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23
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22
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20
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18
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13
VDD
PC1
PC0
PB3
PB2
PB1
PB0
SCK/CKOUT
SDI(O)/PF1
SDO/PF0
EXTI/PE0
RESET
26/Mar/2001
-1-
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