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PDF UPD651 Data sheet ( Hoja de datos )

Número de pieza UPD651
Descripción 4-BIT SINGLE CHIP MICROCOMPUTER
Fabricantes NEC 
Logotipo NEC Logotipo



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No Preview Available ! UPD651 Hoja de datos, Descripción, Manual

NEe Microcomputers, Inc.
4-81T SINGLE CHIP MICROCOMPUTER
ttlEC
jl.PD651
OESCR IPTION
The IlPD651 is a IlCOM-44 4-bit single chip microcomputer manufactured with a
low-power-consumption CMOS process, allowing use of a single +5V power supply.
The IlPD651 provides all of the hardware features of the J.LCOM-44 family, except
that it has two subroutine stack levels to enhance software development. The J.LPD651
executes all 58 instructions of the IlCOM-44 instruction set, and it is available either in
a 42-pin Dual-in-line package (IlPD651C), or in a space-saving 52-pin Flat'package
(J.LPD651G).
PIN CONFIGURATION
Cl,
pCo
pc,
PC2
PC3
iNT
RESET
PDo
PD,
P02
P03
PEa
PE,
PE2
PE3
PFo
PF,
PF2
PFJ
TEST
VCC
Clo
vss
PB3
PB2
PB,
PBo
PA3
PA2
PA,
PAo
P'2
p, ,
P'o
PH3
PH2
PH,
PHo
PG3
PG2
PG,
PGo
ifif€i~@f£i~~
NC
NC
/JPD651G
PA,
PA,
' "P90
PIN NAMES
PAO-PA3
Input Port A
PBO-PB3
Input Port 8
PCO-PC3
Input/Output Port C
PDO-PD3
Input/Output Port 0
PEO-PE3
Output Port E
PFO-PF3
Output Port F
PGO-PG3
Output Port G
PHO-PH3
Output Port H
PIO·PI2
Output Port I
INT Interrupt Input
CLO·CL,
External Clock Signals
RESET
Aeset
VCC
Power Supply Positive
VSS Ground
TEST
Factory Test Pin
(Connect to Vee)
NC
PE,
p"PE2
PEo
PD,
PD,
PD,
PDO
-No Connection
..
~: ff ~d~ d~f~fl~
ABSOLUTE MAXIMUM
RATINGS*
Operating Temperature ...............................- 30°C to +85°C
Storage Temperature. . . . . . . . . . . . . . . . . . . . . . .
. .. -55°C to +125°C
Supply Voltage ................................... -0.3 to +7.0 Volts
Input Voltages (Port A through D, INT, RESET)
-0.3 to+7.3 Volts
Output Voltages .................. .
-0.3 to+7.3 Volts
Output Current (Ports C through I, each bit)
. 2.5 mA
(Total, all ports) . . . . . . . .
. . . . . . . . 28 mA
COMMENT: Stress above those listed under "Absolute Maximum Ratings" may cause permanant:
damage to the device. This is a stress rating only and functional operation of the device at these or
any other conditions abolle those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability.
191

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