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PDF UPD557L Data sheet ( Hoja de datos )
| Número de pieza | UPD557L | |
| Descripción | 4-BIT SINGLE CHIP MICROCOMPUTER | |
| Fabricantes | NEC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de UPD557L (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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NEe Microcomputers, Inc.
4-81T SINGLE CHIP MICROCOMPUTER
NEe
JLPD557L
DESCR IPTION
The pP0557L is a pCOM-43 4-bit single chip microcomputer with high voltage out-
puts,and low power consumption. The outputs can be pulled to- 35V' for direct
interfacing to vacuum fluorescent displays. The pPD557L is manufactured with a low-
power-consumption PMOS process, allowing use of a -8V, low current power supply.
The pPD557L provides all of the hardware features of the pCOM-43 family, except
that it has 21 I/O lines in a 28-pin dual-in-line package to reduce device cost. The
pP0557 L executes all 80 instructions of the pCOM-43 instruction set.
PIN CONFIGURATION Cl,
PCo 2
PC, 3
PC2 4
PC3 5
PDO 6
PD, 7 pPO
PD2 8 557L
PD3 9
PEO
PEl
PE2
PE3
VSS
Clo
VGG
RESET
INT
PA3
PA2
PAl
PAO
PGO
PF3
PF2
PF,
PFo
TEST
PIN NAMES
PAO-PA3
PCO-PC3
PDO-PD3
PEO-PE3
PFO-PF3
PGO
INT
ClO-Cl,
RESET
VGG
VSS
TEST
Input Port A
Input/Output Port C
Input/Output Port D
Output Port E
Output Port F
Output Port G
Interrupt Input
External Clock Signals
Reset
Power Supply Negative
Power Supply Positive
Factory Test Pin
(Connect to VSS)
II
ABSOLUTE MAXIMUM
RATINGS*
Operating Temperature.............................. , .-lO°Cto +70°C
Storage Temperature ............ _................... -40°Cto+125°C
Supply Voltage ......................... _ ..........- 15 to +0.3 Volts
Input Voltages (Port A, INT, RESET) . . . . . . . . . . . . . . . . . . . . .-15 to +0.3 Volts
(PortsC, 0) ...... , .............. '" .. , .-40to +0.3 Volts
Output Voltages ......... , .........................-40 to +0.3 Volts
Output Current (Ports C, D, each bit) . . . . . . . . . . . . . . . . . . . . . . . . . . . -4 mA
(Ports E, F, G, each bit) . . . . . . . . . . . . . . . . . . . . . . . . . - 25 mA
(Total, all ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -100 mA
COMMENT: Stress above those listed under "Absolute Maximum Ratings" may cause permanent
damage to the device. This is a stress rating only and functional operation of the device at these or
any other conditions above 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.
177
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet UPD557L.PDF ] | |
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