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UPD8748 fiches techniques PDF

NEC - SINGLE CHIP 8-BIT MICROCOMPUTERS

Numéro de référence UPD8748
Description SINGLE CHIP 8-BIT MICROCOMPUTERS
Fabricant NEC 
Logo NEC 





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UPD8748 fiche technique
NEe Microcomputers, Inc.
IL PD8048 FAMILY OF SINGLE CHIP
8·BIT MICROCOMPUTERS
NEe
ILPD8048
ILPD8748
JLPD8035L
DESC RIPTI ON
The J1PD8048 family of single chip 8-bit microcomputers is comprised of the J1PD8048,
J1PD8748 and J1PD8035l. The processors in this family differ only in their internal pro-
gram memory options: The J1PD8048 with 1K x 8 bytes of mask ROM, the J1PD8748
with 1K x 8 bytes of UV erasable EPROM and the J1PD8035L with external memory.
FEATU RES
Fully Compatible With Industry Standard 8048/8748/8035
• NMOS Silicon Gate Technology Requiring a Single +5V Supply
• 2.5 J1S Cycle Time. All Instruction 1 or 2 Bytes
• Interval Timer/Event Counter
• 64 x 8 Byte RAM Data Memory
• Single Level Interrupt
• 96 Instructions: 70% Single Byte
• 27 I/O Lines
• Internal Clock Generator
• 8 Level Stack
• Compatible With 8080A/8085A Peripherals
• Available in Both Ceramic and Plastic 40 Pin Packages
PIN CONFIGURATION
TO
XTALl
XTAL 2
ssRESET
INT
EA
RD
PSEN
WR
ALE
DBa
DBl
DB2
DB3
DB4
DBS
DBS
DB7
Vss
J1PD
8048/
8748/
8035L
Vee
Tl
P27
P2S
P2S
P24
P17
P1S
P1S
P14
P13
P12
Pll
Pl0
V DD
PROG
P23
P22
P2l
P20
333

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